Crystal structures of two hydrazinecarbo­thio­amide derivatives: (E)-N-ethyl-2-[(4-oxo-4H-chromen-3-yl)methyl­idene]hydrazinecarbo­thio­amide hemi­hydrate and (E)-2-[(4-chloro-2H-chromen-3-yl)methyl­idene]-N-phenyl­hydrazinecarbo­thio­amide

Gangadharan, R.; Haribabu, J.; Karvembu, R.; Sethusankar, K.

doi:10.1107/S2056989015003369

research communications

CRYSTALLOGRAPHIC
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ISSN: 2056-9890

Volume 71| Part 3| March 2015| Pages 305-308

doi:10.1107/S2056989015003369

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Crystal structures of two hydrazinecarbothioamide derivatives: (E)-N-ethyl-2-[(4-oxo-4H-chromen-3-yl)methylidene]hydrazinecarbothioamide hemihydrate and (E)-2-[(4-chloro-2H-chromen-3-yl)methylidene]-N-phenylhydrazinecarbothioamide

Rajeswari Gangadharan,^a Jebiti Haribabu,^b Ramasamy Karvembu ^b and K. Sethusankar ^c ^*

^aDepartment of Physics, Ethiraj College for Women (Autonomous), Chennai 600 008, India, ^bDepartment of Chemistry, National Institute of Technology, Tiruchirappalli 620 015, India, and ^cDepartment of Physics, RKM Vivekananda College (Autonomous), Chennai 600 004, India
^*Correspondence e-mail: ksethusankar@yahoo.co.in

Edited by H. Stoeckli-Evans, University of Neuchâtel, Switzerland (Received 4 February 2015; accepted 17 February 2015; online 21 February 2015)

The title compounds, C₁₃H₁₃N₃O₂S·0.5H₂O, (I), and C₁₇H₁₄ClN₃OS, (II), are hydrazinecarbothioamide derivatives. Compound (I) crystallizes with two independent molecules (A and B) and a water molecule of crystallization in the asymmetric unit. The chromene moiety is essentially planar in molecules A and B, with maximum deviations of 0.028 (3) and 0.016 (3) Å, respectively, for the carbonyl C atoms. In (II), the pyran ring of the chromene moiety adopts a screw-boat conformation and the phenyl ring is inclined by 61.18 (9)° to its mean plane. In the crystal of (I), bifurcated N—H⋯O and C—H⋯O hydrogen bonds link the two independent molecules forming A–B dimers with two R₂¹(6) ring motifs, and R₂²(10) and R₂²(14) ring motifs. In addition to these, the water molecule forms tetrafurcated hydrogen bonds which alternately generate R₄⁴(12) and R₆⁶(22) graph-set ring motifs. There are also π–π [inter-centroid distances = 3.5648 (14) and 3.6825 (15) Å] interactions present, leading to the formation of columns along the c-axis direction. In the crystal of (II), molecules are linked by pairs of N—H⋯S hydrogen bonds, forming inversion dimers with an R₂²(8) ring motif. The dimers are linked by C—H⋯π interactions, forming ribbons lying parallel to (210).

Keywords: crystal structure; hydrazinecarbothioamide; thiourea derivatives; α-N-heterocycle; hydrogen bonding.

CCDC references: 1016440; 1049914

1. Chemical context

Thiosemicarbazones belong to a large group of thiourea derivatives which are derived from parent aldehydes and ketones. The biological activity of these compounds depends on the parent aldehyde and ketone (Beraldo & Gambino, 2004 ). Derivatives of hydrazinecarbothioamide constitute an important group of multidentate ligands with potential binding sites available for a wide variety of metal ions. The chemistry of thiosemicarbazone complexes has received much attention owing to their significant biological activities and medicinal properties. Presently, the areas in which thiosemicarbazones are receiving the most attention are based on their antitumour, antiprotozoal, antibacterial and antiviral activities (Finch et al., 1999 ; Antholine et al., 1977 ). α-N-heterocyclic thiosemicarbazones possess antitumour properties partially related to their ability to inhibit ribonucleoside reductase (RR), an iron-containing enzyme which is essential in DNA synthesis (Sartorelli et al., 1970 ). The medicinal action of these thiosemicarbazones appears to be directly related to their ability to chelate the iron atom of the active site of RR or by destroying the tyrosinase radical present in a subunit of this protein (Thelander & Graslund, 1983 ). The structures of the title compounds were determined in order to investigate the extent of electron delocalization, ligand conformations and to illustrate their biological implications.

2. Structural commentary

In compound (I) (Fig. 1), the chromene moieties of molecules A and B are essentially planar, with maximum deviations of 0.028 (3) and 0.016 (3) Å for atoms C7 and C7′, respectively. However, in compound (II) (Fig. 2), the chromene moiety is not quite planar with a dihedral angle of 5.67 (12)° between the mean planes of the fused six-membered rings. In compound (II), the pyran ring of the chromene moiety adopts a screw-boat conformation [puckering amplitudes and smallest displacement parameters are q = 0.314 (2) Å, θ = 116.4 (4)°, φ = 147.5 (5)° and ΔC₂ = 0.7 (3)]. In compound (II), the dihedral angle between the chromene moiety and the phenyl ring is 61.18 (9)°. The deviation of the carbonyl O atoms (O2 and O2′) from the mean plane of the pyran ring in compound (I) are 0.0838 (18) and 0.0386 (19) Å in molecules A and B, respectively, while the deviation of the Cl atom in compound (II) is 0.312 (1) Å.

Figure 1
The molecular structure of the two independent molecules (A and B) of compound (I)

, showing the atom labelling. Displacement ellipsoids are drawn at the 30% probability level.

Figure 2
The molecular structure of compound (II)

, showing the atom labelling. Displacement ellipsoids are drawn at the 30% probability level.

The hydrazinecarbothioamide backbone is almost planar, with the maximum deviation being exhibited by atom N2 in both compounds; 0.025 (2) and 0.051 (2) Å, respectively, in molecules A and B of compound (I) and 0.072 (2) Å in compound (II).

Thiosemicarbazones exist in the thione form in the solid state and in solution they exist as an equilibrium mixture of thione and thiol forms (Kurup & Joseph, 2003 ). The fact that the compounds exists in the thione form is confirmed by the N—N, N—C and C=S bond lengths.. The C—S bond lengths are 1.681 (2) and 1.673 (2) Å in molecules A and B, respectively, of compound (I), and 1.668 (2) Å in compound (II). These bond lengths are intermediate between normal S—Csp² single-bond and S=Csp² double-bond distances of ca 1.75 and 1.59 Å, respectively, indicating the presence of partial double-bond character (Kumbhar et al., 1997 ). The N1—N2 bond lengths [varying between 1.367 (2) and 1.369 (2) Å] are very close to that reported for a similar substituted hydrazinecarbothioamide compound (Joseph et al., 2004 ). The resonance involving the pyran ring would account for the shortening of the N—N distance through extensive delocalization. The C—N bond lengths [varying between 1.324 (3) and 1.361 (3) Å] are shorter than the normal C—N single bond length (ca 1.48 Å), also indicating some degree of delocalization in both compounds. The S1=C11—N2—N1 torsion angles are 177.31 (16) and 174.29 (16)°, respectively, in molecules A and B of compound (I) and −172.62 (17)° in compound (II). This indicates that the thionyl atom S1 is positioned trans to the azomethane nitrogen atom N1 in both compounds.

3. Supramolecular features

The water molecule of crystallization plays an important role in the hydrogen-bonding patterns of the three-dimensional network in compound (I). In the crystal packing of compound (I), bifurcated N—H⋯O and C—H⋯O hydrogen bonds involving carbonyl oxygens O2 and O2′ in adjacent molecules, interconnect them to form A–B dimers with two $[R_{2}^{1}]$ (6) ring motifs, and $[R_{2}^{2}]$ (10) and $[R_{2}^{2}]$ (14) ring motifs (Table 1 and Fig. 3). Similar bifurcated hydrogen bonds between molecule A and the water O atom form an $[R_{2}^{1}]$ (10) ring motif. In addition to these, the water molecule forms tetrafurcated hydrogen bonds which alternately generate R₄⁴(12) and R₆⁶(22) graph-set ring motifs. The supramolecular aggregation in the crystal of compound (I) is completed by the presence of slipped parallel π–π interactions, forming columns along the c-axis direction. The most significant interactions are Cg1⋯Cg1ⁱ = 3.5648 (14) Å [inter-planar distance = 3.3154 (10) Å, slippage = 1.310 Å, where Cg1 is the centroid of the O1/C1/C6–C9 ring; symmetry code: (i) = −x + 1, −y + 1, −z + 1] and Cg5⋯Cg5ⁱⁱ = 3.6825 (15) Å [inter-planar distance = 3.5441 (11) Å, slippage = 0.999 Å, where Cg5 is the centroid of the C1′–C6′ ring; symmetry code: (ii) = −x + 2, −y + 1, −z].

Table 1
Hydrogen-bond geometry (Å, °) for (I)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2′—H2′A⋯O2ⁱ	0.86	2.09	2.900 (3)	158
N2—H2A⋯O2′ⁱ	0.86	2.14	2.938 (2)	155
N3—H3A⋯O1W	0.86	2.31	3.131 (3)	161
O1W—H1WB⋯S1′	0.85 (3)	2.47 (3)	3.322 (2)	178 (4)
O1W—H1WA⋯S1ⁱⁱ	0.87 (2)	2.52 (2)	3.370 (3)	167 (4)
C9—H9⋯O1W	0.93	2.30	3.213 (4)	169
C10—H10⋯O2′ⁱ	0.93	2.51	3.297 (3)	143
C10′—H10′⋯O2ⁱ	0.93	2.52	3.302 (3)	142
Symmetry codes: (i) -x+1, -y+1, -z+1; (ii) -x+1, -y, -z+1.

Figure 3
A partial view along the c axis of the crystal packing of compound (I)

, showing the N—H⋯O, C—H⋯O and OW—H⋯S hydrogen bonds (dashed lines; see Table 1

), which result in the formation of two $[R_{2}^{1}]$ (6) ring motifs and $[R_{2}^{2}]$ (10), $[R_{2}^{2}]$ (14), R₄⁴(12) and R₆⁶(22) ring motifs. H atoms not involved in hydrogen bonding have been omitted for clarity.

In the crystal of compound (II), molecules are linked by pairs of N—H⋯S hydrogen bonds, forming inversion dimers with an $[R_{2}^{2}]$ (8) ring motif (Table 2 and Fig. 4). The dimers are linked by C—H⋯π interactions (Table 2), forming ribbons lying parallel to plane (210).

Table 2
Hydrogen-bond geometry (Å, °) for (II)

Cg1 is the centroid of the C12–C17 phenyl ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2—H2A⋯S1ⁱ	0.86	2.61	3.456 (2)	167
C2—H2⋯Cg1ⁱⁱ	0.93	2.86	3.697 (3)	151
Symmetry codes: (i) -x+2, -y+2, -z; (ii) -x+1, -y, -z.

Figure 4
A partial view along the b axis of the crystal packing of compound (II)

, showing the N—H⋯S hydrogen bonds (dashed lines; see Table 2

), which result in the formation of inversion dimers with an $[R_{2}^{2}]$ (8) ring motif. H atoms not involved in hydrogen bonding have been omitted for clarity.

4. Database survey

A search of the Cambridge Structural Database (Version 5.36; last update Nov. 2014; Groom & Allen, 2014 ) for similar structures gave 3 hits, one of which is a copper(II) complex, dibromo-(2-{[6-methyl-4-(oxo)-4H-chromen-3-yl]methylene}- N-phenylhydrazinecarbothioamide)copper (Ilies et al., 2014 ). The other two include, N-methyl-2-[(4-oxo-4H-chromen-3-yl)methylene] hydrazinecarbothioamide (III) (Vimala et al., 2014 ), which is the N-methyl derivative of compound (I), and (E)-2-[(4-chloro-2H-chromen-3-yl)methylene]-N-cyclohexylhydrazine carbothioamide (IV) (Gangadharan et al., 2014 ), which is the N-cyclohexane derivative of compound (II). The bond distances and angles in compounds (I) and (III) are very similar, as are those in compounds (II) and (IV).

5. Synthesis and crystallization

Compound (I): 1.19 g (0.01 mol) of N-ethylhydrazinecarbothioamide was dissolved in 20 ml of hot ethanol and to this was added 1.74 g (0.01 mol) of 4-oxo-4H-chromene-3-carbaldehyde in 10 cm³ of ethanol over a period of 10 min with continuous stirring. The reaction mixture was refluxed for 2 h and allowed to cool whereby a shiny white compound began to separate; this was filtered and washed thoroughly with ethanol and then dried in vacuo. The compound was recrystallized from hot ethanol (yield: 96%), giving colourless block-like crystals.

Compound (II): 1.67 g (0.01 mol) of 4(N)-phenylthiosemicarbazide was dissolved in 20 ml of hot ethanol and to this was added 1.94 g (0.01 mol) of 4-chloro-2H-chromene-3-carbaldehyde in 10 ml of ethanol over a period of 10 min with continuous stirring. The reaction mixture was refluxed for 2 h and allowed to cool whereby a shiny yellow compound began to separate. It was filtered and washed thoroughly with ethanol and then dried in vacuo. The compound was recrystallized from hot ethanol (yield: 89%), giving colourless block-like crystals.

6. Refinement

Crystal data, data collection and structure refinement details for compounds (I) and (II) are summarized in Table 3. For compound (I), the positions of the water H atoms were located from difference electron density maps and freely refined. In compounds (I) and (II), the NH H atoms were included in calculated positions and treated as riding atoms: N—H = 0.86 Å with U_iso(H) = 1.2U_eq(N). The C-bound H atoms in both molecules were included in calculated positions and treated as riding atoms: C—H = 0.93–0.97 Å with U_iso(H) = 1.5U_eq(C) for methyl H atoms and = 1.2U_eq(C) for other H atoms.

Table 3
Experimental details

	(I)	(II)
Crystal data
Chemical formula	C₁₃H₁₃N₃O₂S·0.5H₂O	C₁₇H₁₄ClN₃OS
M_r	284.33	343.82
Crystal system, space group	Triclinic, P $[\overline{1}]$	Monoclinic, P2₁/c
Temperature (K)	296	296
a, b, c (Å)	8.2858 (2), 12.5422 (4), 14.3520 (5)	10.3176 (3), 5.7589 (2), 27.0364 (7)
α, β, γ (°)	114.379 (2), 95.751 (3), 94.200 (2)	90, 96.564 (2), 90
V (Å³)	1340.81 (7)	1595.92 (8)
Z	4	4
Radiation type	Mo Kα	Mo Kα
μ (mm⁻¹)	0.25	0.38
Crystal size (mm)	0.35 × 0.30 × 0.25	0.30 × 0.25 × 0.20

Data collection
Diffractometer	Bruker Kappa APEXII CCD	Bruker Kappa APEXII CCD
Absorption correction	Multi-scan (SADABS; Bruker, 2008 )	Multi-scan (SADABS; Bruker, 2008)
T_min, T_max	0.917, 0.940	0.893, 0.927
No. of measured, independent and observed [I > 2σ(I)] reflections	19142, 5579, 2764	14667, 3902, 2089
R_int	0.046	0.050
(sin θ/λ)_max (Å⁻¹)	0.631	0.668

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.048, 0.137, 0.94	0.047, 0.124, 0.99
No. of reflections	5579	3902
No. of parameters	362	208
No. of restraints	2	0
H-atom treatment	H atoms treated by a mixture of independent and constrained refinement	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	0.26, −0.24	0.23, −0.20
Computer programs: APEX2 and SAINT (Bruker, 2008), SHELXS97 and SHELXL97 (Sheldrick, 2008 ), ORTEP-3 for Windows (Farrugia, 2012 ), Mercury (Macrae et al., 2008 ) and PLATON Spek, 2009 ).

Supporting information

CCDC references: 1016440; 1049914

Crystal structure: contains datablocks I, II, global. DOI: 10.1107/S2056989015003369/su5078sup1.cif

Structure factors: contains datablock I. DOI: 10.1107/S2056989015003369/su5078Isup2.hkl

Structure factors: contains datablock II. DOI: 10.1107/S2056989015003369/su5078IIsup3.hkl

Supporting information file. DOI: 10.1107/S2056989015003369/su5078Isup4.cml

Supporting information file. DOI: 10.1107/S2056989015003369/su5078IIsup5.cml

checkCIF report

Chemical context top

Thiosemicarbazones belong to a large group of thiourea derivatives which are derived from parent aldehydes and ketones. The biological activity of these compounds depends on the parent aldehyde and ketone (Beraldo & Gambino, 2004). Derivatives of hydrazinecarbothioamide constitute an important group of multidentate ligands with potential binding sites available for a wide variety of metal ions. The chemistry of thiosemicarbazone complexes has received much attention owing to their significant biological activities and medicinal properties. Presently, the areas in which thiosemicarbazones are receiving the most attention are based on their antitumour, antiprotozoal, antibacterial and antiviral activities (Finch et al., 1999; Antholine et al., 1977). α-N-heterocyclic thiosemicarbazones possess antitumour properties partially related to their ability to inhibit ribonucleoside reductase (RR), an iron-containing enzyme which is essential in DNA synthesis (Sartorelli et al., 1970).The medicinal action of these thiosemicarbazones appears to be directly related to their ability to chelate the iron atom of the active site of RR or by destroying the tyrosinase radical present in a subunit of this protein (Thelander & Graslund, 1983). The structures of the title compounds were determined in order to investigate the extent of electron delocalization, ligand conformations and to illustrate their biological implications.

Structural commentary top

In compound (I) (Fig. 1), the chromene moieties of molecules A and B are essentially planar, with maximum deviations of 0.028 (3) and 0.016 (3) Å for atoms C7 and C7', respectively. However, in compound (II) (Fig. 2), the chromene moiety is not quite planar with a dihedral angle of 5.67 (12)° between the mean planes of the fused six-membered rings. In compound (II), the pyran ring of the chromene moiety adopts a screw-boat conformation [puckering amplitudes and smallest displacement parameters are q = 0.314 (2) Å, θ = 116.4 (4)°, ϕ = 147.5 (5)° and ΔC₂ = 0.7 (3)]. In compound (II), the dihedral angle between the chromene moiety and the phenyl ring is 61.18 (9)°. The deviation of the carbonyl O atoms (O2 and O2') from the mean plane of the pyran ring in compound (I) are 0.0838 (18) and 0.0386 (19) Å in molecules A and B, respectively, while the deviation of the Cl atom in compound (II) is 0.312 (1) Å.

Thiosemicarbazones exist in the thione form in the solid state and in solution they exist as an equilibrium mixture of thione and thiol forms (Kurup & Joseph, 2003). The fact that the compounds exists in the thione form is confirmed by the N—N, N—C and C═S bond lengths.. The C—S bond lengths are 1.681 (2) and 1.673 (2) Å in molecules A and B, respectively, of compound (I), and 1.668 (2) Å in compound (II). These bond lengths are intermediate between normal S—Csp² single-bond and S═Csp² double-bond distances of ca 1.75 and 1.59 Å, respectively, indicating the presence of partial double-bond character (Kumbhar et al., 1997). The N1—N2 bond lengths [varying between 1.367 (2) and 1.369 (2) Å] are very close to that reported for a similar substituted hydrazinecarbothioamide compound (Joseph et al., 2004). The resonance involving the pyran ring would account for the shortening of the N—N distance through extensive delocalization. The C—N bond lengths [varying between 1.324 (3) and 1.361 (3) Å] are shorter than the normal C—N single bond length (ca 1.48 Å), also indicating some degree of delocalization in both compounds. The S1═C11—N2—N1 torsion angles are 177.31 (16) and 174.29 (16)°, respectively, in molecules A and B of compound (I) and -172.62 (17)° in compound (II). This indicates that the thionyl atom S1 is positioned trans to the azomethane nitrogen atom N1 in both compounds.

Supramolecular features top

The water molecule of crystallization plays an important role in the hydrogen-bonding patterns of the three-dimensional network in compound (I). In the crystal packing of compound (I), bifurcated N—H···O and C—H···O hydrogen bonds involving carbonyl oxygens O2 and O2' in adjacent molecules, interconnect them to form A–B dimers with two R₂¹(6) ring motifs, and R₂²(10) and R₂²(14) ring motifs (Table 1 and Fig. 3). Similar bifurcated hydrogen bonds between molecule A and the water O atom form an R₂¹(10) ring motif. In addition to these, the water molecule forms tetrafurcated hydrogen bonds which alternatively generate R₄⁴(12) and R₆⁶(22) graph-set ring motifs. The supramolecular aggregation in the crystal of compound (I) is completed by the presence of slipped parallel π–π interactions, forming columns along the c-axis direction. The most significant interactions are Cg1···Cg1ⁱ = 3.5648 (14) Å [inter-planar distance = 3.3154 (10) Å, slippage = 1.310 Å, where Cg1 is the centroid of the O1/C1/C6–C9 ring; symmetry code: (i) = -x + 1, -y + 1, -z + 1] and Cg5···Cg5ⁱⁱ = 3.6825 (15) Å [inter-planar distance = 3.5441 (11) Å, slippage = 0.999 Å, where Cg5 is the centroid of the C1'–C6' ring; symmetry code: (ii) = -x + 2, -y + 1, -z].

In the crystal of compound (II), molecules are linked by pairs of N—H···S hydrogen bonds, forming inversion dimers with an R₂²(8) ring motif (Table 2 and Fig. 4). The dimers are linked by C—H···π interactions (Table 2), forming ribbons lying parallel to plane (210).

Database survey top

A search of the Cambridge Structural Database (Version 5.36; last update Nov. 2014; Groom & Allen, 2014) for similar structures gave 3 hits, one of which is a copper(II) complex, dibromo-(2-{[6-methyl-4-(oxo)-4H-chromen-3-yl]methylene}- N-phenylhydrazinecarbothioamide)copper (Ilies et al., 2014). The other two include, N-methyl-2-[(4-oxo-4H-chromen-3-yl)methylene] hydrazinecarbothioamide (III) (Vimala et al., 2014), which is the N-methyl derivative of compound (I), and (E)-2-[(4-chloro-2H-chromen-3-yl)methylene]-N-cyclohexylhydrazine carbothioamide (IV) (Gangadharan et al., 2014), which is the N-cyclohexane derivative of compound (II). The bond distances and angles in compounds (I) and (III) are very similar, as are those in compounds (II) and (IV).

Synthesis and crystallization top

Refinement top

Related literature top

For related literature, see: Antholine et al. (1977); Beraldo & Gambino (2004); Finch et al. (1999); Gangadharan et al. (2014); Groom & Allen (2014); Ilies et al. (2014); Joseph et al. (2004); Kumbhar et al. (1997); Kurup & Joseph (2003); Sartorelli et al. (1970); Thelander & Graslund (1983); Vimala et al. (2014).

Computing details top

For both compounds, data collection: APEX2 (Bruker, 2008); cell refinement: SAINT (Bruker, 2008); data reduction: SAINT (Bruker, 2008); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012) and Mercury (Macrae et al., 2008). Software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009) for (I); SHELXL97 (Sheldrick, 2008) and PLATON Spek, 2009) for (II).

Figures top

	Fig. 1. The molecular structure of the two independent molecules (A and B) of compound (I), showing the atom labelling. Displacement ellipsoids are drawn at the 30% probability level.
	Fig. 2. The molecular structure of compound (II), showing the atom labelling. Displacement ellipsoids are drawn at the 30% probability level.
	Fig. 3. A partial view along the c axis of the crystal packing of compound (I), showing the N—H···O, C—H···O and OW—H···S hydrogen bonds (dashed lines; see Table 1), which result in the formation of two R₂¹(6) ring motifs and R₂²(10), R₂²(14), R₄⁴(12) and R₆⁶(22) ring motifs. H atoms not involved in hydrogen bonding have been omitted for clarity.
	Fig. 4. A partial view along the b axis of the crystal packing of compound (II), showing the N—H···S hydrogen bonds (dashed lines; see Table 2), which result in the formation of inversion dimers with an R₂²(8) ring motif. H atoms not involved in hydrogen bonding have been omitted for clarity.

(I) (E)-N-Ethyl-2-[(4-oxo-4H-chromen-3-yl)methylidene]hydrazinecarbothioamide hemihydrate top

Crystal data top

C₁₃H₁₃N₃O₂S·0.5H₂O	Z = 4
M_r = 284.33	F(000) = 596
Triclinic, P1	D_x = 1.409 Mg m⁻³
Hall symbol: -P 1	Mo Kα radiation, λ = 0.71073 Å
a = 8.2858 (2) Å	Cell parameters from 5579 reflections
b = 12.5422 (4) Å	θ = 1.6–26.6°
c = 14.3520 (5) Å	µ = 0.25 mm⁻¹
α = 114.379 (2)°	T = 296 K
β = 95.751 (3)°	Block, colourless
γ = 94.200 (2)°	0.35 × 0.30 × 0.25 mm
V = 1340.81 (7) Å³

Data collection top

Bruker Kappa APEXII CCD diffractometer	5579 independent reflections
Radiation source: fine-focus sealed tube	2764 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.046
ω and ϕ scans	θ_max = 26.6°, θ_min = 1.6°
Absorption correction: multi-scan (SADABS; Bruker, 2008)	h = −10→10
T_min = 0.917, T_max = 0.940	k = −14→15
19142 measured reflections	l = −18→18

Refinement top

Refinement on F²	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F² > 2σ(F²)] = 0.048	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.137	H atoms treated by a mixture of independent and constrained refinement
S = 0.94	w = 1/[σ²(F_o²) + (0.0658P)²] where P = (F_o² + 2F_c²)/3
5579 reflections	(Δ/σ)_max < 0.001
362 parameters	Δρ_max = 0.26 e Å⁻³
2 restraints	Δρ_min = −0.24 e Å⁻³

Crystal data top

C₁₃H₁₃N₃O₂S·0.5H₂O	γ = 94.200 (2)°
M_r = 284.33	V = 1340.81 (7) Å³
Triclinic, P1	Z = 4
a = 8.2858 (2) Å	Mo Kα radiation
b = 12.5422 (4) Å	µ = 0.25 mm⁻¹
c = 14.3520 (5) Å	T = 296 K
α = 114.379 (2)°	0.35 × 0.30 × 0.25 mm
β = 95.751 (3)°

Data collection top

Bruker Kappa APEXII CCD diffractometer	5579 independent reflections
Absorption correction: multi-scan (SADABS; Bruker, 2008)	2764 reflections with I > 2σ(I)
T_min = 0.917, T_max = 0.940	R_int = 0.046
19142 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.048	2 restraints
wR(F²) = 0.137	H atoms treated by a mixture of independent and constrained refinement
S = 0.94	Δρ_max = 0.26 e Å⁻³
5579 reflections	Δρ_min = −0.24 e Å⁻³
362 parameters

Special details top

Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes.

Refinement. Refinement of F² against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F², conventional R-factors R are based on F, with F set to zero for negative F². The threshold expression of F² > σ(F²) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F² are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å²) top

	x	y	z	U_iso*/U_eq
C1'	0.7753 (3)	0.4656 (2)	−0.08664 (19)	0.0444 (6)
C1	0.8004 (3)	0.5298 (2)	0.46364 (19)	0.0425 (6)
C2'	0.8576 (3)	0.5059 (2)	−0.1473 (2)	0.0557 (7)
H2'	0.8603	0.4568	−0.2163	0.067*
C2	0.8858 (3)	0.5665 (2)	0.4025 (2)	0.0557 (7)
H2	0.8976	0.5138	0.3360	0.067*
C3	0.9530 (3)	0.6821 (2)	0.4413 (2)	0.0581 (7)
H3	1.0107	0.7083	0.4008	0.070*
C3'	0.9351 (3)	0.6189 (2)	−0.1045 (2)	0.0593 (8)
H3'	0.9903	0.6469	−0.1448	0.071*
C4'	0.9321 (3)	0.6925 (2)	−0.0009 (2)	0.0572 (7)
H4'	0.9859	0.7690	0.0278	0.069*
C4	0.9357 (3)	0.7602 (2)	0.5402 (2)	0.0568 (7)
H4	0.9835	0.8382	0.5664	0.068*
C5	0.8487 (3)	0.7233 (2)	0.6000 (2)	0.0487 (6)
H5	0.8357	0.7768	0.6660	0.058*
C5'	0.8498 (3)	0.6520 (2)	0.0583 (2)	0.0503 (7)
H5'	0.8475	0.7017	0.1273	0.060*
C6	0.7792 (3)	0.6059 (2)	0.56270 (18)	0.0404 (6)
C6'	0.7691 (3)	0.5370 (2)	0.01658 (19)	0.0408 (6)
C7	0.6827 (3)	0.5632 (2)	0.62307 (19)	0.0420 (6)
C7'	0.6784 (3)	0.4911 (2)	0.07702 (19)	0.0429 (6)
C8'	0.6037 (3)	0.3694 (2)	0.02285 (18)	0.0409 (6)
C8	0.6228 (3)	0.43815 (19)	0.57379 (18)	0.0394 (6)
C9	0.6516 (3)	0.3722 (2)	0.47741 (19)	0.0488 (7)
H9	0.6102	0.2926	0.4477	0.059*
C9'	0.6189 (3)	0.3082 (2)	−0.0777 (2)	0.0535 (7)
H9'	0.5693	0.2305	−0.1106	0.064*
C10	0.5298 (3)	0.3872 (2)	0.62971 (18)	0.0430 (6)
H10	0.5125	0.4350	0.6965	0.052*
C10'	0.5137 (3)	0.3172 (2)	0.07880 (19)	0.0456 (6)
H10'	0.5090	0.3620	0.1485	0.055*
C11	0.3128 (3)	0.1280 (2)	0.61075 (18)	0.0412 (6)
C11'	0.2875 (3)	0.0607 (2)	0.05910 (19)	0.0420 (6)
C12	0.2363 (3)	−0.0610 (2)	0.45867 (19)	0.0538 (7)
H12A	0.1249	−0.0630	0.4739	0.065*
H12B	0.2923	−0.1109	0.4842	0.065*
C12'	0.1908 (3)	−0.1203 (2)	−0.09642 (19)	0.0524 (7)
H12C	0.0750	−0.1186	−0.0915	0.063*
H12D	0.2316	−0.1696	−0.0645	0.063*
C13'	0.2150 (4)	−0.1715 (2)	−0.2081 (2)	0.0732 (9)
H13D	0.1711	−0.1241	−0.2402	0.110*
H13E	0.1596	−0.2505	−0.2426	0.110*
H13F	0.3296	−0.1725	−0.2128	0.110*
C13	0.2336 (3)	−0.1086 (2)	0.3439 (2)	0.0631 (8)
H13A	0.1773	−0.0598	0.3182	0.095*
H13B	0.1782	−0.1877	0.3115	0.095*
H13C	0.3437	−0.1086	0.3285	0.095*
N1	0.4719 (2)	0.27888 (16)	0.58919 (15)	0.0431 (5)
N1'	0.4412 (2)	0.21203 (17)	0.03521 (15)	0.0447 (5)
N2'	0.3664 (2)	0.17184 (16)	0.09748 (16)	0.0499 (5)
H2'A	0.3695	0.2178	0.1618	0.060*
N2	0.3884 (2)	0.24022 (16)	0.64915 (15)	0.0454 (5)
H2A	0.3837	0.2878	0.7121	0.055*
N3'	0.2766 (2)	−0.00132 (17)	−0.04207 (16)	0.0511 (6)
H3'A	0.3224	0.0303	−0.0773	0.061*
N3	0.3184 (2)	0.06031 (16)	0.51214 (15)	0.0475 (5)
H3A	0.3728	0.0889	0.4779	0.057*
O1	0.7355 (2)	0.41240 (14)	0.42089 (13)	0.0534 (5)
O1'	0.6999 (2)	0.35106 (14)	−0.13347 (13)	0.0575 (5)
O2	0.6529 (2)	0.62856 (14)	0.70913 (13)	0.0603 (5)
O2'	0.6649 (2)	0.55142 (14)	0.16840 (14)	0.0644 (5)
O1W	0.4956 (3)	0.10193 (19)	0.34506 (17)	0.0689 (6)
S1'	0.21192 (9)	0.00898 (6)	0.13833 (5)	0.0591 (2)
S1	0.21930 (9)	0.08415 (6)	0.68995 (5)	0.0587 (2)
H1WA	0.569 (4)	0.054 (3)	0.326 (4)	0.18 (2)*
H1WB	0.422 (4)	0.080 (4)	0.293 (2)	0.16 (2)*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
C1'	0.0496 (15)	0.0441 (15)	0.0419 (16)	0.0038 (12)	0.0133 (13)	0.0194 (13)
C1	0.0458 (15)	0.0384 (14)	0.0450 (16)	0.0025 (12)	0.0109 (13)	0.0186 (13)
C2'	0.0640 (17)	0.0635 (18)	0.0423 (16)	0.0010 (15)	0.0162 (14)	0.0244 (15)
C2	0.0649 (18)	0.0576 (18)	0.0497 (17)	0.0082 (15)	0.0259 (15)	0.0238 (15)
C3	0.0645 (18)	0.0609 (18)	0.0604 (19)	0.0022 (15)	0.0229 (15)	0.0348 (16)
C3'	0.0595 (18)	0.0645 (19)	0.063 (2)	−0.0021 (15)	0.0179 (15)	0.0363 (17)
C4'	0.0574 (17)	0.0525 (17)	0.064 (2)	−0.0023 (14)	0.0111 (15)	0.0284 (16)
C4	0.0595 (17)	0.0492 (16)	0.064 (2)	−0.0055 (14)	0.0125 (15)	0.0278 (16)
C5	0.0547 (16)	0.0430 (15)	0.0467 (16)	−0.0020 (13)	0.0092 (13)	0.0181 (13)
C5'	0.0566 (16)	0.0463 (15)	0.0475 (16)	0.0018 (13)	0.0113 (13)	0.0193 (13)
C6	0.0421 (14)	0.0411 (14)	0.0404 (15)	0.0030 (11)	0.0084 (12)	0.0194 (12)
C6'	0.0441 (14)	0.0392 (14)	0.0422 (15)	0.0051 (11)	0.0096 (12)	0.0196 (12)
C7	0.0483 (15)	0.0415 (14)	0.0366 (15)	0.0032 (12)	0.0064 (12)	0.0172 (13)
C7'	0.0481 (15)	0.0405 (14)	0.0411 (16)	0.0068 (12)	0.0129 (13)	0.0167 (13)
C8'	0.0460 (14)	0.0385 (14)	0.0389 (15)	0.0040 (11)	0.0113 (12)	0.0162 (12)
C8	0.0462 (14)	0.0349 (13)	0.0372 (15)	0.0031 (11)	0.0099 (12)	0.0150 (12)
C9	0.0612 (17)	0.0384 (14)	0.0463 (16)	−0.0024 (13)	0.0167 (14)	0.0170 (13)
C9'	0.0697 (18)	0.0418 (15)	0.0472 (17)	−0.0033 (13)	0.0186 (14)	0.0163 (14)
C10	0.0531 (15)	0.0389 (14)	0.0365 (14)	0.0013 (12)	0.0115 (12)	0.0151 (12)
C10'	0.0574 (16)	0.0398 (14)	0.0401 (15)	0.0045 (13)	0.0167 (13)	0.0156 (13)
C11	0.0483 (15)	0.0353 (14)	0.0417 (15)	0.0055 (12)	0.0119 (12)	0.0169 (12)
C11'	0.0468 (15)	0.0358 (14)	0.0432 (16)	0.0027 (12)	0.0100 (12)	0.0160 (12)
C12	0.0696 (18)	0.0405 (14)	0.0489 (17)	−0.0031 (13)	0.0164 (14)	0.0164 (13)
C12'	0.0598 (17)	0.0452 (15)	0.0488 (17)	−0.0027 (13)	0.0110 (14)	0.0174 (13)
C13'	0.094 (2)	0.0668 (19)	0.0442 (18)	−0.0098 (17)	0.0102 (17)	0.0126 (15)
C13	0.0741 (19)	0.0524 (17)	0.0506 (18)	−0.0046 (15)	0.0149 (15)	0.0105 (14)
N1	0.0539 (13)	0.0379 (12)	0.0395 (12)	−0.0002 (10)	0.0126 (10)	0.0182 (10)
N1'	0.0547 (13)	0.0400 (12)	0.0417 (12)	0.0007 (10)	0.0154 (10)	0.0184 (10)
N2'	0.0680 (14)	0.0413 (12)	0.0389 (12)	−0.0031 (11)	0.0175 (11)	0.0150 (10)
N2	0.0614 (13)	0.0371 (11)	0.0368 (12)	−0.0003 (10)	0.0166 (10)	0.0136 (10)
N3'	0.0663 (14)	0.0437 (12)	0.0412 (13)	−0.0063 (11)	0.0148 (11)	0.0164 (11)
N3	0.0602 (13)	0.0403 (12)	0.0422 (13)	−0.0013 (10)	0.0180 (11)	0.0166 (10)
O1	0.0716 (12)	0.0426 (10)	0.0428 (11)	−0.0008 (9)	0.0246 (9)	0.0125 (9)
O1'	0.0788 (13)	0.0477 (11)	0.0407 (11)	−0.0064 (9)	0.0234 (10)	0.0127 (9)
O2	0.0948 (14)	0.0418 (10)	0.0390 (11)	−0.0025 (10)	0.0261 (10)	0.0101 (9)
O2'	0.0966 (14)	0.0463 (11)	0.0427 (12)	−0.0063 (10)	0.0302 (11)	0.0094 (9)
O1W	0.0823 (16)	0.0636 (14)	0.0546 (14)	−0.0030 (13)	0.0150 (13)	0.0196 (11)
S1'	0.0820 (5)	0.0521 (4)	0.0441 (4)	−0.0073 (4)	0.0147 (4)	0.0227 (4)
S1	0.0800 (5)	0.0487 (4)	0.0507 (4)	−0.0004 (4)	0.0288 (4)	0.0214 (3)

Geometric parameters (Å, º) top

C1'—O1'	1.376 (3)	C9'—O1'	1.338 (3)
C1'—C2'	1.382 (3)	C9'—H9'	0.9300
C1'—C6'	1.388 (3)	C10—N1	1.269 (3)
C1—C2	1.376 (3)	C10—H10	0.9300
C1—O1	1.380 (3)	C10'—N1'	1.273 (3)
C1—C6	1.385 (3)	C10'—H10'	0.9300
C2'—C3'	1.366 (3)	C11—N3	1.324 (3)
C2'—H2'	0.9300	C11—N2	1.356 (3)
C2—C3	1.370 (3)	C11—S1	1.681 (2)
C2—H2	0.9300	C11'—N3'	1.324 (3)
C3—C4	1.382 (4)	C11'—N2'	1.354 (3)
C3—H3	0.9300	C11'—S1'	1.673 (2)
C3'—C4'	1.392 (4)	C12—N3	1.465 (3)
C3'—H3'	0.9300	C12—C13	1.500 (3)
C4'—C5'	1.367 (3)	C12—H12A	0.9700
C4'—H4'	0.9300	C12—H12B	0.9700
C4—C5	1.369 (3)	C12'—N3'	1.454 (3)
C4—H4	0.9300	C12'—C13'	1.501 (3)
C5—C6	1.396 (3)	C12'—H12C	0.9700
C5—H5	0.9300	C12'—H12D	0.9700
C5'—C6'	1.398 (3)	C13'—H13D	0.9600
C5'—H5'	0.9300	C13'—H13E	0.9600
C6—C7	1.461 (3)	C13'—H13F	0.9600
C6'—C7'	1.458 (3)	C13—H13A	0.9600
C7—O2	1.230 (3)	C13—H13B	0.9600
C7—C8	1.452 (3)	C13—H13C	0.9600
C7'—O2'	1.236 (3)	N1—N2	1.367 (2)
C7'—C8'	1.451 (3)	N1'—N2'	1.369 (2)
C8'—C9'	1.350 (3)	N2'—H2'A	0.8600
C8'—C10'	1.453 (3)	N2—H2A	0.8600
C8—C9	1.344 (3)	N3'—H3'A	0.8600
C8—C10	1.457 (3)	N3—H3A	0.8600
C9—O1	1.339 (2)	O1W—H1WA	0.866 (19)
C9—H9	0.9300	O1W—H1WB	0.847 (19)

O1'—C1'—C2'	116.8 (2)	N1—C10—C8	121.4 (2)
O1'—C1'—C6'	121.5 (2)	N1—C10—H10	119.3
C2'—C1'—C6'	121.7 (2)	C8—C10—H10	119.3
C2—C1—O1	116.5 (2)	N1'—C10'—C8'	121.9 (2)
C2—C1—C6	122.3 (2)	N1'—C10'—H10'	119.0
O1—C1—C6	121.3 (2)	C8'—C10'—H10'	119.0
C3'—C2'—C1'	119.2 (2)	N3—C11—N2	116.8 (2)
C3'—C2'—H2'	120.4	N3—C11—S1	124.54 (18)
C1'—C2'—H2'	120.4	N2—C11—S1	118.62 (18)
C3—C2—C1	118.8 (2)	N3'—C11'—N2'	116.0 (2)
C3—C2—H2	120.6	N3'—C11'—S1'	123.86 (18)
C1—C2—H2	120.6	N2'—C11'—S1'	120.18 (19)
C2—C3—C4	120.5 (2)	N3—C12—C13	111.8 (2)
C2—C3—H3	119.8	N3—C12—H12A	109.2
C4—C3—H3	119.8	C13—C12—H12A	109.2
C2'—C3'—C4'	120.6 (2)	N3—C12—H12B	109.2
C2'—C3'—H3'	119.7	C13—C12—H12B	109.2
C4'—C3'—H3'	119.7	H12A—C12—H12B	107.9
C5'—C4'—C3'	119.9 (2)	N3'—C12'—C13'	110.4 (2)
C5'—C4'—H4'	120.1	N3'—C12'—H12C	109.6
C3'—C4'—H4'	120.1	C13'—C12'—H12C	109.6
C5—C4—C3	120.3 (2)	N3'—C12'—H12D	109.6
C5—C4—H4	119.8	C13'—C12'—H12D	109.6
C3—C4—H4	119.8	H12C—C12'—H12D	108.1
C4—C5—C6	120.5 (2)	C12'—C13'—H13D	109.5
C4—C5—H5	119.7	C12'—C13'—H13E	109.5
C6—C5—H5	119.7	H13D—C13'—H13E	109.5
C4'—C5'—C6'	120.8 (2)	C12'—C13'—H13F	109.5
C4'—C5'—H5'	119.6	H13D—C13'—H13F	109.5
C6'—C5'—H5'	119.6	H13E—C13'—H13F	109.5
C1—C6—C5	117.6 (2)	C12—C13—H13A	109.5
C1—C6—C7	120.0 (2)	C12—C13—H13B	109.5
C5—C6—C7	122.3 (2)	H13A—C13—H13B	109.5
C1'—C6'—C5'	117.9 (2)	C12—C13—H13C	109.5
C1'—C6'—C7'	119.7 (2)	H13A—C13—H13C	109.5
C5'—C6'—C7'	122.4 (2)	H13B—C13—H13C	109.5
O2—C7—C8	122.2 (2)	C10—N1—N2	116.40 (19)
O2—C7—C6	122.6 (2)	C10'—N1'—N2'	116.1 (2)
C8—C7—C6	115.2 (2)	C11'—N2'—N1'	120.9 (2)
O2'—C7'—C8'	121.7 (2)	C11'—N2'—H2'A	119.6
O2'—C7'—C6'	122.7 (2)	N1'—N2'—H2'A	119.6
C8'—C7'—C6'	115.7 (2)	C11—N2—N1	120.95 (19)
C9'—C8'—C7'	119.3 (2)	C11—N2—H2A	119.5
C9'—C8'—C10'	122.0 (2)	N1—N2—H2A	119.5
C7'—C8'—C10'	118.7 (2)	C11'—N3'—C12'	123.2 (2)
C9—C8—C7	119.7 (2)	C11'—N3'—H3'A	118.4
C9—C8—C10	121.4 (2)	C12'—N3'—H3'A	118.4
C7—C8—C10	119.0 (2)	C11—N3—C12	123.1 (2)
O1—C9—C8	125.0 (2)	C11—N3—H3A	118.5
O1—C9—H9	117.5	C12—N3—H3A	118.5
C8—C9—H9	117.5	C9—O1—C1	118.76 (18)
O1'—C9'—C8'	124.9 (2)	C9'—O1'—C1'	118.85 (19)
O1'—C9'—H9'	117.5	H1WA—O1W—H1WB	106 (4)
C8'—C9'—H9'	117.5

O1'—C1'—C2'—C3'	−179.8 (2)	C6'—C7'—C8'—C10'	179.0 (2)
C6'—C1'—C2'—C3'	0.1 (4)	O2—C7—C8—C9	176.4 (2)
O1—C1—C2—C3	−179.9 (2)	C6—C7—C8—C9	−2.9 (3)
C6—C1—C2—C3	0.5 (4)	O2—C7—C8—C10	−2.5 (4)
C1—C2—C3—C4	0.2 (4)	C6—C7—C8—C10	178.11 (19)
C1'—C2'—C3'—C4'	0.3 (4)	C7—C8—C9—O1	0.9 (4)
C2'—C3'—C4'—C5'	−0.6 (4)	C10—C8—C9—O1	179.8 (2)
C2—C3—C4—C5	−1.1 (4)	C7'—C8'—C9'—O1'	0.3 (4)
C3—C4—C5—C6	1.3 (4)	C10'—C8'—C9'—O1'	180.0 (2)
C3'—C4'—C5'—C6'	0.4 (4)	C9—C8—C10—N1	−0.4 (4)
C2—C1—C6—C5	−0.3 (4)	C7—C8—C10—N1	178.5 (2)
O1—C1—C6—C5	−179.9 (2)	C9'—C8'—C10'—N1'	−1.7 (4)
C2—C1—C6—C7	177.9 (2)	C7'—C8'—C10'—N1'	177.9 (2)
O1—C1—C6—C7	−1.7 (4)	C8—C10—N1—N2	179.22 (18)
C4—C5—C6—C1	−0.6 (4)	C8'—C10'—N1'—N2'	177.44 (19)
C4—C5—C6—C7	−178.8 (2)	N3'—C11'—N2'—N1'	−5.3 (3)
O1'—C1'—C6'—C5'	179.6 (2)	S1'—C11'—N2'—N1'	174.29 (16)
C2'—C1'—C6'—C5'	−0.2 (4)	C10'—N1'—N2'—C11'	−179.2 (2)
O1'—C1'—C6'—C7'	−1.1 (4)	N3—C11—N2—N1	−2.7 (3)
C2'—C1'—C6'—C7'	179.0 (2)	S1—C11—N2—N1	177.31 (16)
C4'—C5'—C6'—C1'	0.0 (4)	C10—N1—N2—C11	175.7 (2)
C4'—C5'—C6'—C7'	−179.3 (2)	N2'—C11'—N3'—C12'	−177.6 (2)
C1—C6—C7—O2	−176.0 (2)	S1'—C11'—N3'—C12'	2.8 (3)
C5—C6—C7—O2	2.1 (4)	C13'—C12'—N3'—C11'	−174.1 (2)
C1—C6—C7—C8	3.3 (3)	N2—C11—N3—C12	−177.1 (2)
C5—C6—C7—C8	−178.5 (2)	S1—C11—N3—C12	2.8 (3)
C1'—C6'—C7'—O2'	−178.0 (2)	C13—C12—N3—C11	168.4 (2)
C5'—C6'—C7'—O2'	1.2 (4)	C8—C9—O1—C1	1.0 (4)
C1'—C6'—C7'—C8'	1.7 (3)	C2—C1—O1—C9	179.8 (2)
C5'—C6'—C7'—C8'	−179.1 (2)	C6—C1—O1—C9	−0.5 (3)
O2'—C7'—C8'—C9'	178.4 (2)	C8'—C9'—O1'—C1'	0.4 (4)
C6'—C7'—C8'—C9'	−1.3 (3)	C2'—C1'—O1'—C9'	179.9 (2)
O2'—C7'—C8'—C10'	−1.3 (3)	C6'—C1'—O1'—C9'	0.1 (3)

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
N2′—H2′A···O2ⁱ	0.86	2.09	2.900 (3)	158
N2—H2A···O2′ⁱ	0.86	2.14	2.938 (2)	155
N3—H3A···O1W	0.86	2.31	3.131 (3)	161
O1W—H1WB···S1′	0.85 (3)	2.47 (3)	3.322 (2)	178 (4)
O1W—H1WA···S1ⁱⁱ	0.87 (2)	2.52 (2)	3.370 (3)	167 (4)
C9—H9···O1W	0.93	2.30	3.213 (4)	169
C10—H10···O2′ⁱ	0.93	2.51	3.297 (3)	143
C10′—H10′···O2ⁱ	0.93	2.52	3.302 (3)	142

Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) −x+1, −y, −z+1.

(II) (E)-2-[(4-Chloro-2H-chromen-3-yl)methylidene]-N-phenylhydrazinecarbothioamide top

Crystal data top

C₁₇H₁₄ClN₃OS	F(000) = 712
M_r = 343.82	D_x = 1.431 Mg m⁻³
Monoclinic, P2₁/c	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybc	Cell parameters from 3902 reflections
a = 10.3176 (3) Å	θ = 1.5–28.4°
b = 5.7589 (2) Å	µ = 0.38 mm⁻¹
c = 27.0364 (7) Å	T = 296 K
β = 96.564 (2)°	Block, colourless
V = 1595.92 (8) Å³	0.30 × 0.25 × 0.20 mm
Z = 4

Data collection top

Bruker Kappa APEXII CCD diffractometer	3902 independent reflections
Radiation source: fine-focus sealed tube	2089 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.050
ω and ϕ scans	θ_max = 28.4°, θ_min = 1.5°
Absorption correction: multi-scan (SADABS; Bruker, 2008)	h = −13→13
T_min = 0.893, T_max = 0.927	k = −7→7
14667 measured reflections	l = −35→35

Refinement top

Refinement on F²	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F² > 2σ(F²)] = 0.047	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.124	H-atom parameters constrained
S = 0.99	w = 1/[σ²(F_o²) + (0.053P)² + 0.0466P] where P = (F_o² + 2F_c²)/3
3902 reflections	(Δ/σ)_max < 0.001
208 parameters	Δρ_max = 0.23 e Å⁻³
0 restraints	Δρ_min = −0.20 e Å⁻³

Crystal data top

C₁₇H₁₄ClN₃OS	V = 1595.92 (8) Å³
M_r = 343.82	Z = 4
Monoclinic, P2₁/c	Mo Kα radiation
a = 10.3176 (3) Å	µ = 0.38 mm⁻¹
b = 5.7589 (2) Å	T = 296 K
c = 27.0364 (7) Å	0.30 × 0.25 × 0.20 mm
β = 96.564 (2)°

Data collection top

Bruker Kappa APEXII CCD diffractometer	3902 independent reflections
Absorption correction: multi-scan (SADABS; Bruker, 2008)	2089 reflections with I > 2σ(I)
T_min = 0.893, T_max = 0.927	R_int = 0.050
14667 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.047	0 restraints
wR(F²) = 0.124	H-atom parameters constrained
S = 0.99	Δρ_max = 0.23 e Å⁻³
3902 reflections	Δρ_min = −0.20 e Å⁻³
208 parameters

Special details top

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å²) top

	x	y	z	U_iso*/U_eq
C1	0.4918 (3)	−0.2996 (5)	−0.10347 (12)	0.0665 (8)
H1	0.4591	−0.3879	−0.0789	0.080*
C2	0.4637 (3)	−0.3582 (5)	−0.15313 (13)	0.0749 (9)
H2	0.4120	−0.4872	−0.1621	0.090*
C3	0.5116 (3)	−0.2267 (6)	−0.18911 (12)	0.0759 (9)
H3	0.4921	−0.2669	−0.2224	0.091*
C4	0.5882 (3)	−0.0365 (5)	−0.17654 (10)	0.0622 (7)
H4	0.6193	0.0518	−0.2015	0.075*
C5	0.6198 (2)	0.0260 (4)	−0.12710 (8)	0.0457 (6)
C6	0.5690 (2)	−0.1087 (4)	−0.09079 (10)	0.0531 (6)
C7	0.6397 (3)	0.1634 (4)	−0.02714 (9)	0.0563 (7)
H7A	0.6881	0.1612	0.0058	0.068*
H7B	0.5608	0.2529	−0.0251	0.068*
C8	0.7205 (2)	0.2839 (4)	−0.06223 (8)	0.0456 (6)
C9	0.7056 (2)	0.2157 (4)	−0.11002 (8)	0.0446 (6)
C10	0.7994 (2)	0.4764 (4)	−0.04404 (9)	0.0490 (6)
H10	0.8449	0.5619	−0.0656	0.059*
C11	0.8930 (2)	0.7961 (4)	0.06460 (8)	0.0458 (6)
C12	0.8439 (2)	0.6739 (4)	0.14825 (8)	0.0430 (6)
C13	0.8894 (2)	0.4948 (4)	0.17950 (9)	0.0497 (6)
H13	0.9269	0.3642	0.1667	0.060*
C14	0.8788 (2)	0.5110 (5)	0.22994 (9)	0.0538 (7)
H14	0.9088	0.3902	0.2510	0.065*
C15	0.8245 (2)	0.7033 (5)	0.24904 (9)	0.0563 (7)
H15	0.8189	0.7146	0.2831	0.068*
C16	0.7784 (2)	0.8787 (5)	0.21777 (9)	0.0580 (7)
H16	0.7407	1.0086	0.2307	0.070*
C17	0.7870 (2)	0.8659 (4)	0.16725 (9)	0.0520 (6)
H17	0.7547	0.9856	0.1463	0.062*
N1	0.80705 (19)	0.5309 (3)	0.00252 (7)	0.0496 (5)
N2	0.87785 (19)	0.7257 (4)	0.01625 (7)	0.0533 (5)
H2A	0.9130	0.8041	−0.0058	0.064*
N3	0.84862 (19)	0.6451 (3)	0.09615 (7)	0.0520 (5)
H3A	0.8196	0.5154	0.0836	0.062*
O1	0.60439 (18)	−0.0669 (3)	−0.04098 (6)	0.0662 (5)
Cl1	0.79000 (7)	0.35034 (13)	−0.15374 (2)	0.0649 (2)
S1	0.96413 (7)	1.05093 (12)	0.07927 (2)	0.0565 (2)

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
C1	0.0604 (16)	0.0548 (19)	0.086 (2)	−0.0045 (14)	0.0171 (15)	−0.0053 (17)
C2	0.0523 (16)	0.070 (2)	0.101 (3)	−0.0045 (15)	0.0005 (16)	−0.030 (2)
C3	0.0651 (18)	0.092 (3)	0.068 (2)	0.0024 (18)	−0.0059 (15)	−0.0280 (19)
C4	0.0606 (16)	0.074 (2)	0.0509 (16)	0.0048 (15)	0.0005 (13)	−0.0125 (15)
C5	0.0467 (13)	0.0493 (15)	0.0410 (13)	0.0075 (11)	0.0046 (10)	−0.0025 (12)
C6	0.0534 (14)	0.0502 (17)	0.0564 (16)	0.0037 (12)	0.0089 (12)	−0.0055 (13)
C7	0.0773 (17)	0.0502 (17)	0.0437 (14)	−0.0077 (14)	0.0160 (12)	0.0006 (13)
C8	0.0527 (13)	0.0474 (15)	0.0375 (13)	0.0009 (12)	0.0093 (10)	0.0022 (12)
C9	0.0500 (13)	0.0473 (15)	0.0374 (12)	0.0027 (11)	0.0096 (10)	0.0037 (11)
C10	0.0584 (15)	0.0506 (16)	0.0387 (13)	−0.0022 (12)	0.0088 (11)	0.0028 (12)
C11	0.0528 (14)	0.0441 (15)	0.0416 (13)	0.0011 (11)	0.0103 (11)	0.0004 (12)
C12	0.0496 (13)	0.0409 (15)	0.0397 (13)	−0.0090 (11)	0.0099 (10)	−0.0015 (11)
C13	0.0582 (15)	0.0412 (15)	0.0522 (15)	0.0008 (12)	0.0167 (12)	−0.0038 (12)
C14	0.0631 (16)	0.0518 (17)	0.0479 (15)	−0.0023 (13)	0.0123 (12)	0.0063 (13)
C15	0.0646 (16)	0.0636 (19)	0.0428 (14)	−0.0140 (14)	0.0156 (12)	−0.0079 (14)
C16	0.0673 (16)	0.0512 (17)	0.0589 (17)	−0.0020 (13)	0.0211 (13)	−0.0143 (14)
C17	0.0623 (16)	0.0413 (15)	0.0539 (15)	0.0029 (12)	0.0128 (12)	0.0021 (13)
N1	0.0624 (13)	0.0435 (13)	0.0433 (12)	−0.0043 (10)	0.0083 (9)	−0.0006 (10)
N2	0.0713 (13)	0.0527 (14)	0.0368 (11)	−0.0131 (11)	0.0101 (9)	0.0021 (10)
N3	0.0789 (14)	0.0406 (12)	0.0386 (11)	−0.0136 (11)	0.0148 (10)	−0.0063 (10)
O1	0.0928 (13)	0.0550 (13)	0.0525 (11)	−0.0160 (10)	0.0162 (10)	0.0034 (10)
Cl1	0.0802 (5)	0.0762 (5)	0.0411 (4)	−0.0098 (4)	0.0189 (3)	0.0059 (3)
S1	0.0796 (5)	0.0433 (4)	0.0488 (4)	−0.0101 (3)	0.0162 (3)	−0.0023 (3)

Geometric parameters (Å, º) top

C1—C6	1.378 (3)	C10—H10	0.9300
C1—C2	1.383 (4)	C11—N3	1.335 (3)
C1—H1	0.9300	C11—N2	1.361 (3)
C2—C3	1.369 (4)	C11—S1	1.668 (2)
C2—H2	0.9300	C12—C17	1.378 (3)
C3—C4	1.371 (4)	C12—C13	1.381 (3)
C3—H3	0.9300	C12—N3	1.425 (3)
C4—C5	1.387 (3)	C13—C14	1.384 (3)
C4—H4	0.9300	C13—H13	0.9300
C5—C6	1.399 (3)	C14—C15	1.369 (3)
C5—C9	1.448 (3)	C14—H14	0.9300
C6—O1	1.375 (3)	C15—C16	1.367 (3)
C7—O1	1.414 (3)	C15—H15	0.9300
C7—C8	1.503 (3)	C16—C17	1.381 (3)
C7—H7A	0.9700	C16—H16	0.9300
C7—H7B	0.9700	C17—H17	0.9300
C8—C9	1.343 (3)	N1—N2	1.367 (3)
C8—C10	1.429 (3)	N2—H2A	0.8600
C9—Cl1	1.730 (2)	N3—H3A	0.8600
C10—N1	1.291 (3)

C6—C1—C2	119.2 (3)	N1—C10—H10	120.2
C6—C1—H1	120.4	C8—C10—H10	120.2
C2—C1—H1	120.4	N3—C11—N2	114.2 (2)
C3—C2—C1	120.1 (3)	N3—C11—S1	126.51 (18)
C3—C2—H2	119.9	N2—C11—S1	119.31 (18)
C1—C2—H2	119.9	C17—C12—C13	120.0 (2)
C2—C3—C4	120.7 (3)	C17—C12—N3	121.7 (2)
C2—C3—H3	119.6	C13—C12—N3	118.1 (2)
C4—C3—H3	119.6	C12—C13—C14	119.5 (2)
C3—C4—C5	120.8 (3)	C12—C13—H13	120.2
C3—C4—H4	119.6	C14—C13—H13	120.2
C5—C4—H4	119.6	C15—C14—C13	120.6 (2)
C4—C5—C6	117.8 (2)	C15—C14—H14	119.7
C4—C5—C9	124.8 (2)	C13—C14—H14	119.7
C6—C5—C9	117.3 (2)	C16—C15—C14	119.5 (2)
O1—C6—C1	117.7 (3)	C16—C15—H15	120.2
O1—C6—C5	120.8 (2)	C14—C15—H15	120.2
C1—C6—C5	121.3 (3)	C15—C16—C17	121.0 (2)
O1—C7—C8	114.2 (2)	C15—C16—H16	119.5
O1—C7—H7A	108.7	C17—C16—H16	119.5
C8—C7—H7A	108.7	C12—C17—C16	119.3 (2)
O1—C7—H7B	108.7	C12—C17—H17	120.3
C8—C7—H7B	108.7	C16—C17—H17	120.3
H7A—C7—H7B	107.6	C10—N1—N2	115.8 (2)
C9—C8—C10	123.8 (2)	C11—N2—N1	120.31 (19)
C9—C8—C7	117.5 (2)	C11—N2—H2A	119.8
C10—C8—C7	118.4 (2)	N1—N2—H2A	119.8
C8—C9—C5	121.8 (2)	C11—N3—C12	127.5 (2)
C8—C9—Cl1	121.0 (2)	C11—N3—H3A	116.3
C5—C9—Cl1	117.22 (17)	C12—N3—H3A	116.3
N1—C10—C8	119.6 (2)	C6—O1—C7	117.04 (19)

C6—C1—C2—C3	−0.3 (4)	C9—C8—C10—N1	179.3 (2)
C1—C2—C3—C4	0.2 (4)	C7—C8—C10—N1	5.2 (3)
C2—C3—C4—C5	0.6 (4)	C17—C12—C13—C14	−0.8 (3)
C3—C4—C5—C6	−1.2 (4)	N3—C12—C13—C14	−176.0 (2)
C3—C4—C5—C9	176.4 (2)	C12—C13—C14—C15	−0.4 (4)
C2—C1—C6—O1	−174.5 (2)	C13—C14—C15—C16	1.1 (4)
C2—C1—C6—C5	−0.3 (4)	C14—C15—C16—C17	−0.7 (4)
C4—C5—C6—O1	175.1 (2)	C13—C12—C17—C16	1.2 (3)
C9—C5—C6—O1	−2.7 (3)	N3—C12—C17—C16	176.3 (2)
C4—C5—C6—C1	1.1 (3)	C15—C16—C17—C12	−0.5 (4)
C9—C5—C6—C1	−176.8 (2)	C8—C10—N1—N2	−176.1 (2)
O1—C7—C8—C9	27.7 (3)	N3—C11—N2—N1	8.2 (3)
O1—C7—C8—C10	−157.8 (2)	S1—C11—N2—N1	−172.62 (17)
C10—C8—C9—C5	−177.1 (2)	C10—N1—N2—C11	−179.3 (2)
C7—C8—C9—C5	−2.9 (3)	N2—C11—N3—C12	−176.3 (2)
C10—C8—C9—Cl1	3.5 (3)	S1—C11—N3—C12	4.7 (4)
C7—C8—C9—Cl1	177.74 (17)	C17—C12—N3—C11	52.3 (3)
C4—C5—C9—C8	172.2 (2)	C13—C12—N3—C11	−132.6 (2)
C6—C5—C9—C8	−10.1 (3)	C1—C6—O1—C7	−157.2 (2)
C4—C5—C9—Cl1	−8.4 (3)	C5—C6—O1—C7	28.6 (3)
C6—C5—C9—Cl1	169.29 (17)	C8—C7—O1—C6	−40.3 (3)

Hydrogen-bond geometry (Å, º) top

Cg1 is the centroid of the C12–C17 phenyl ring.

D—H···A	D—H	H···A	D···A	D—H···A
N2—H2A···S1ⁱ	0.86	2.61	3.456 (2)	167
C2—H2···Cg1ⁱⁱ	0.93	2.86	3.697 (3)	151

Symmetry codes: (i) −x+2, −y+2, −z; (ii) −x+1, −y, −z.

Hydrogen-bond geometry (Å, º) for (I) top

D—H···A	D—H	H···A	D···A	D—H···A
N2'—H2'A···O2ⁱ	0.86	2.09	2.900 (3)	158
N2—H2A···O2'ⁱ	0.86	2.14	2.938 (2)	155
N3—H3A···O1W	0.86	2.31	3.131 (3)	161
O1W—H1WB···S1'	0.85 (3)	2.47 (3)	3.322 (2)	178 (4)
O1W—H1WA···S1ⁱⁱ	0.87 (2)	2.52 (2)	3.370 (3)	167 (4)
C9—H9···O1W	0.93	2.30	3.213 (4)	169
C10—H10···O2'ⁱ	0.93	2.51	3.297 (3)	143
C10'—H10'···O2ⁱ	0.93	2.52	3.302 (3)	142

Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) −x+1, −y, −z+1.

Hydrogen-bond geometry (Å, º) for (II) top

Cg1 is the centroid of the C12–C17 phenyl ring.

D—H···A	D—H	H···A	D···A	D—H···A
N2—H2A···S1ⁱ	0.86	2.61	3.456 (2)	167
C2—H2···Cg1ⁱⁱ	0.93	2.86	3.697 (3)	151

Symmetry codes: (i) −x+2, −y+2, −z; (ii) −x+1, −y, −z.

Experimental details

	(I)	(II)
Crystal data
Chemical formula	C₁₃H₁₃N₃O₂S·0.5H₂O	C₁₇H₁₄ClN₃OS
M_r	284.33	343.82
Crystal system, space group	Triclinic, P1	Monoclinic, P2₁/c
Temperature (K)	296	296
a, b, c (Å)	8.2858 (2), 12.5422 (4), 14.3520 (5)	10.3176 (3), 5.7589 (2), 27.0364 (7)
α, β, γ (°)	114.379 (2), 95.751 (3), 94.200 (2)	90, 96.564 (2), 90
V (Å³)	1340.81 (7)	1595.92 (8)
Z	4	4
Radiation type	Mo Kα	Mo Kα
µ (mm⁻¹)	0.25	0.38
Crystal size (mm)	0.35 × 0.30 × 0.25	0.30 × 0.25 × 0.20

Data collection
Diffractometer	Bruker Kappa APEXII CCD diffractometer	Bruker Kappa APEXII CCD diffractometer
Absorption correction	Multi-scan (SADABS; Bruker, 2008)	Multi-scan (SADABS; Bruker, 2008)
T_min, T_max	0.917, 0.940	0.893, 0.927
No. of measured, independent and observed [I > 2σ(I)] reflections	19142, 5579, 2764	14667, 3902, 2089
R_int	0.046	0.050
(sin θ/λ)_max (Å⁻¹)	0.631	0.668

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.048, 0.137, 0.94	0.047, 0.124, 0.99
No. of reflections	5579	3902
No. of parameters	362	208
No. of restraints	2	0
H-atom treatment	H atoms treated by a mixture of independent and constrained refinement	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	0.26, −0.24	0.23, −0.20

Computer programs: APEX2 (Bruker, 2008), SAINT (Bruker, 2008), SHELXS97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 2012) and Mercury (Macrae et al., 2008), SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009), SHELXL97 (Sheldrick, 2008) and PLATON Spek, 2009).

Acknowledgements

The authors thank Professor D. Velmurugan and Mr T. Srinivasan, CAS in Crystallography and Biophysics, University of Madras, Chennai, India, for the X-ray intensity data collection.

References

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ISSN: 2056-9890

Volume 71| Part 3| March 2015| Pages 305-308

doi:10.1107/S2056989015003369

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research communications\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

Crystal structures of two hydrazinecarbo­thio­amide derivatives: (E)-N-ethyl-2-[(4-oxo-4H-chromen-3-yl)methyl­­idene]hydrazinecarbo­thio­amide hemi­hydrate and (E)-2-[(4-chloro-2H-chromen-3-yl)methyl­­idene]-N-phenyl­hydrazinecarbo­thio­amide

1. Chemical context

2. Structural commentary

3. Supra­molecular features

4. Database survey

5. Synthesis and crystallization

6. Refinement

Supporting information

Acknowledgements

References

research communications

Crystal structures of two hydrazinecarbothioamide derivatives: (E)-N-ethyl-2-[(4-oxo-4H-chromen-3-yl)methylidene]hydrazinecarbothioamide hemihydrate and (E)-2-[(4-chloro-2H-chromen-3-yl)methylidene]-N-phenylhydrazinecarbothioamide

3. Supramolecular features