research communications
E)-N-methyl-2-(2-oxo-1,2-dihydroacenaphthylen-1-ylidene)hydrazinecarbothioamide
of (2aDepartment of Physics, Presidency College (Autonomous), Chennai 600 005, India, bDepartment of Physics, Pachaiyappa's College for Men, Kancheepuram 631 501, India, and cDepartment of Chemistry, National Institute of Technology, Trichy 620 015, India
*Correspondence e-mail: aspandian59@gmail.com
In the title compound, C14H11N3OS, the acenaphthylene ring system and hydrazinecarbothioamide unit (=N—NH—C=S—NH–) are essentially coplanar [with maximum deviations from their mean planes of −0.009 (2) and 0.033 (2) Å, respectively], and make a dihedral angle of 1.59 (9)°. The molecular conformation is stabilized by two weak intramolecular hydrogen bonds (N—H⋯O and N—H⋯N), which generate S(6) and S(5) ring motifs. In the crystal, molecules are linked by N—H⋯S hydrogen bonds, forming chains along [010]. The chains are linked via pairs of C—H⋯O hydrogen bonds, enclosing R22(10) ring motifs, and C—H⋯π interactions, forming a three-dimensional framework. The of the title compound was determined by resonant scattering.
Keywords: crystal structure; acenaphthylene; hydrazinecarbothioamide; thiosemicarbazones; hydrogen bonding; C—H⋯π interactions.
CCDC reference: 1030348
1. Chemical context
The design and synthesis of thiosemicarbazones are of considerable interest because of their versatile chemistry and various biological activities, such as antitumor, antibacterial, antiviral, antiamoebic and antimalarial (Kelly et al., 1996). They comprise an intriguing class of chelating molecules, which possess a wide range of beneficial medicinal properties (Prabhakaran et al. 2008). Thiosemicarbazones are a versatile class of ligands that have been studied for their biological activity (Chellan et al., 2010), their interesting binding motifs (Lobana et al., 2009) and their use as ligands in catalysis (Xie et al., 2010). In view of their biological importance, the of the title compound has been determined and the results are presented herein.
2. Structural commentary
The molecular structure of the title compound is illustrated in Fig. 1. The atoms of both the acenaphthylene ring system and the =N—NH—C=S—NH– segment are essentially coplanar, the maximum deviations from their mean planes being −0.009 (2) and 0.033 (2) Å for atoms C12 and C14, respectively. The dihedral angle between the benzene and cyclopentane rings of the acenapthalene unit is 1.59 (9)°. The molecular structure is stabilized by N—H⋯O and N—H⋯N hydrogen bonds, forming S(6) and S(5) ring motifs, respectively (Table 1 and Fig. 1).
3. Supramolecular features
In the crystal, molecules are linked by N—H⋯S hydrogen bonds (Table 1 and Fig. 2), forming chains along [010]. The chains are linked via pairs of C—H⋯O hydrogen bonds, enclosing R22(10) ring motifs, and C—H⋯π interactions, forming a three-dimensional framework (Table 1 and Fig. 2).
4. Database survey
A search of the Cambridge Structural Database (Version 5.35, last update May 2014; Groom & Allen, 2014) for the 2-(imino)acenaphthylen-1(2H)-one gave 13 hits, including that of the ethyl analogue of the title compound, acenaphthylene-1,2-dione 4-ethylthiosemicarbazone (GURHAD; Pascu et al., 2010). The two molecules differ in the dihedral angle between the mean planes of the acenaphthylene ring system and hydrazinecarbothioamide unit (=N—NH—C=S—NH–) which is 1.59 (9)° in the title compound but 9.14 (6)° in the ethyl analogue (GURHAD; Pascu et al., 2010). In the crystals of both compounds, molecules are linked via N—H⋯S hydrogen bonds, forming chains along [010].
5. Synthesis and crystallization
An ethanolic solution of N-methylhydrazinecarbothioamide (0.01 mol) was added to an ethanolic solution (50 ml) containing acenaphthylene-1,2-dione (0.01 mol). The mixture was refluxed for 2 h during which time a yellow precipitate separated out. The reaction mixture was then cooled to room temperature and the precipitate was filtered off. It was then washed with ethanol and dried under vacuum. The yield of the isolated product was 89%. Single crystals suitable for X-ray diffraction were obtained by slow evaporation of a solution of the title compound in ethanol at room temperature.
6. Refinement
Crystal data, data collection and structure . All H atoms were fixed geometrically and allowed to ride on their parent atoms: N—H = 0.86 and C—H = 0.93–0.97 Å and with Uiso(H) = 1.5Ueq(C) for methyl H atoms and = 1.2Ueq(C) for other H atoms. The of the title compound was determined by with a of 0.02 (8).
details are summarized in Table 2Supporting information
CCDC reference: 1030348
10.1107/S1600536814023216/su2796sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536814023216/su2796Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536814023216/su2796Isup3.cml
The design and synthesis of thiosemicarbazones are of considerable interest because of their versatile chemistry and various biological activities, such as antitumor, antibacterial, antiviral, antiamoebic and antimalarial (Kelly et al., 1996). They comprise an intriguing class of chelating molecules, which possess a wide range of beneficial medicinal properties (Prabhakaran et al. 2008). Thiosemicarbazones are a versatile class of ligands that have been studied for their biological activity (Chellan et al., 2010), their interesting binding motifs (Lobana et al., 2009) and their use as ligands in catalysis (Xie et al., 2010). In view of their biological importance, the
of the title compound has been determined and the results are presented herein.The molecular structure of the title compound is illustrated in Fig. 1. The atoms of both the acenaphthylene ring system and the =N—NH—C=S—NH– segment are essentially coplanar, the maximum deviations from their mean planes being -0.009 (2) and 0.033 (2) Å for C12 and C14, respectively. The dihedral angle between the benzene and cyclopentane rings of the acenapthalene unit is 1.59 (9)°. The molecular structure is stabilized by N—H···O and N—H···N hydrogen bonds, forming S(6) and S(5) ring motifs, respectively (Table 1 and Fig. 1).
In the crystal, molecules are linked by N—H···S hydrogen bonds (Table 1 and Fig. 2), forming chains along [010]. The chains are linked via pairs of C—H···O hydrogen bonds, enclosing R22(10) ring motifs, and C—H···π interactions, forming a three-dimensional framework (Table 1 and Fig. 2).
A search of the Cambridge Structural Database (Version 5.35, last update May 2014; Groom & Allen, 2014) for the
2-(imino)acenaphthylen-1(2H)-one gave 13 hits, including that of the ethyl analogue of the title compound, acenaphthylene-1,2-dione 4-ethylthiosemicarbazone (GURHAD; Pascu et al., 2010). The two molecules differ in the dihedral angle between the mean planes of the acenaphthylene ring system and hydrazinecarbothioamide unit (=N—NH—C=S—NH–) which is 1.59 (9)° in the title compound but 9.14 (6)° in the ethyl analogue (GURHAD; Pascu et al., 2010). In the crystals of both compounds, molecules are linked via N—H···S hydrogen bonds, forming chains along [010].An ethanolic solution of N-methylhydrazinecarbothioamide (0.01 mol) was added to an ethanolic solution (50 ml) containing acenaphthylene-1,2-dione (0.01 mol). The mixture was refluxed for 2 h during which time an yellow precipitate separated out. The reaction mixture was then cooled to room temperature and the precipitate was filtered off. It was then washed with ethanol and dried under vacuum. The yield of the isolated product was 89%. Single crystals suitable for X-ray diffraction were obtained by slow evaporation of a solution of the title compound in ethanol at room temperature.
Crystal data, data collection and structure
details are summarized in Table 3. All H atoms were fixed geometrically and allowed to ride on their parent atoms: N—H = 0.86 and C—H = 0.93–0.97 Å and with Uiso(H) = 1.5Ueq(C) for methyl H atoms and = 1.2Ueq(C) for other H atoms. The of the title compound was determined by with a of 0.02 (8).Data collection: APEX2 (Bruker, 2008); cell
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 PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).The molecular structure of the title compound, with the atom labelling. Displacement ellipsoids are drawn at the 30% probability level. Hydrogen bonds are shown as dashed lines (see Table 1 for details). The crystal packing of the title compound viewed along the a axis. Hydrogen bonds are shown as dashed lines (see Table 1 for details; H atoms not involved in hydrogen bonding have been omitted for clarity). |
C14H11N3OS | Z = 4 |
Mr = 269.33 | F(000) = 560 |
Orthorhombic, P212121 | Dx = 1.354 Mg m−3 |
Hall symbol: P 2ac 2ab | Mo Kα radiation, λ = 0.71073 Å |
a = 6.1110 (6) Å | µ = 0.24 mm−1 |
b = 10.0547 (11) Å | T = 293 K |
c = 21.497 (2) Å | Block, yellow |
V = 1320.8 (2) Å3 | 0.30 × 0.25 × 0.20 mm |
Bruker SMART APEXII CCD diffractometer | 3941 independent reflections |
Radiation source: fine-focus sealed tube | 2929 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.030 |
ω and ϕ scans | θmax = 30.2°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | h = −8→8 |
Tmin = 0.932, Tmax = 0.954 | k = −13→14 |
23135 measured reflections | l = −29→29 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.035 | H-atom parameters constrained |
wR(F2) = 0.100 | w = 1/[σ2(Fo2) + (0.0532P)2 + 0.2048P] where P = (Fo2 + 2Fc2)/3 |
S = 0.99 | (Δ/σ)max = 0.001 |
3941 reflections | Δρmax = 0.19 e Å−3 |
173 parameters | Δρmin = −0.21 e Å−3 |
0 restraints | Absolute structure: Flack (1983); Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: −0.02 (8) |
C14H11N3OS | V = 1320.8 (2) Å3 |
Mr = 269.33 | Z = 4 |
Orthorhombic, P212121 | Mo Kα radiation |
a = 6.1110 (6) Å | µ = 0.24 mm−1 |
b = 10.0547 (11) Å | T = 293 K |
c = 21.497 (2) Å | 0.30 × 0.25 × 0.20 mm |
Bruker SMART APEXII CCD diffractometer | 3941 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | 2929 reflections with I > 2σ(I) |
Tmin = 0.932, Tmax = 0.954 | Rint = 0.030 |
23135 measured reflections |
R[F2 > 2σ(F2)] = 0.035 | H-atom parameters constrained |
wR(F2) = 0.100 | Δρmax = 0.19 e Å−3 |
S = 0.99 | Δρmin = −0.21 e Å−3 |
3941 reflections | Absolute structure: Flack (1983); Friedel pairs |
173 parameters | Absolute structure parameter: −0.02 (8) |
0 restraints |
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. |
x | y | z | Uiso*/Ueq | ||
S1 | 0.25692 (8) | 0.16757 (4) | 0.21243 (2) | 0.04960 (13) | |
N1 | 0.7542 (2) | −0.05741 (12) | 0.17414 (6) | 0.0365 (3) | |
C6 | 1.2232 (3) | −0.09719 (15) | 0.07905 (7) | 0.0371 (3) | |
O1 | 0.8428 (2) | 0.16301 (14) | 0.08374 (6) | 0.0550 (4) | |
N2 | 0.6084 (2) | 0.04380 (14) | 0.17558 (7) | 0.0416 (3) | |
H2 | 0.6259 | 0.1109 | 0.1513 | 0.050* | |
C7 | 1.0847 (3) | −0.14650 (15) | 0.12619 (7) | 0.0342 (3) | |
C13 | 0.4342 (3) | 0.04074 (16) | 0.21510 (8) | 0.0380 (3) | |
N3 | 0.4208 (2) | −0.06205 (15) | 0.25248 (7) | 0.0445 (3) | |
H3 | 0.5225 | −0.1210 | 0.2506 | 0.053* | |
C12 | 0.9103 (3) | −0.04864 (16) | 0.13442 (7) | 0.0350 (3) | |
C5 | 1.1533 (3) | 0.02565 (17) | 0.05510 (8) | 0.0425 (4) | |
C11 | 0.9539 (3) | 0.06370 (17) | 0.08912 (8) | 0.0403 (4) | |
C8 | 1.1346 (3) | −0.26514 (17) | 0.15336 (8) | 0.0416 (4) | |
H8 | 1.0445 | −0.3015 | 0.1838 | 0.050* | |
C9 | 1.3268 (3) | −0.3313 (2) | 0.13404 (9) | 0.0492 (4) | |
H9 | 1.3632 | −0.4114 | 0.1530 | 0.059* | |
C14 | 0.2450 (4) | −0.0824 (2) | 0.29673 (10) | 0.0634 (5) | |
H14A | 0.2421 | −0.0099 | 0.3258 | 0.095* | |
H14B | 0.2686 | −0.1642 | 0.3187 | 0.095* | |
H14C | 0.1080 | −0.0866 | 0.2750 | 0.095* | |
C1 | 1.4122 (3) | −0.16161 (19) | 0.05877 (8) | 0.0435 (4) | |
C2 | 1.5292 (4) | −0.0968 (2) | 0.01114 (10) | 0.0604 (6) | |
H2A | 1.6559 | −0.1356 | −0.0045 | 0.072* | |
C4 | 1.2699 (4) | 0.0860 (2) | 0.00894 (9) | 0.0578 (5) | |
H4 | 1.2252 | 0.1668 | −0.0078 | 0.069* | |
C3 | 1.4596 (4) | 0.0221 (2) | −0.01250 (11) | 0.0671 (6) | |
H3A | 1.5408 | 0.0621 | −0.0439 | 0.080* | |
C10 | 1.4618 (3) | −0.2829 (2) | 0.08867 (9) | 0.0505 (5) | |
H10 | 1.5867 | −0.3300 | 0.0775 | 0.061* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0421 (2) | 0.0413 (2) | 0.0654 (3) | 0.0080 (2) | 0.0033 (2) | −0.01024 (19) |
N1 | 0.0345 (6) | 0.0331 (6) | 0.0420 (7) | 0.0008 (6) | 0.0020 (7) | −0.0007 (5) |
C6 | 0.0373 (9) | 0.0370 (8) | 0.0369 (8) | −0.0031 (7) | −0.0004 (7) | −0.0047 (6) |
O1 | 0.0621 (8) | 0.0423 (7) | 0.0605 (8) | 0.0123 (7) | 0.0046 (7) | 0.0140 (6) |
N2 | 0.0397 (7) | 0.0361 (7) | 0.0488 (8) | 0.0054 (6) | 0.0055 (7) | 0.0043 (6) |
C7 | 0.0353 (8) | 0.0338 (8) | 0.0336 (7) | 0.0004 (6) | −0.0001 (6) | −0.0013 (6) |
C13 | 0.0337 (8) | 0.0365 (8) | 0.0438 (8) | −0.0028 (6) | 0.0001 (7) | −0.0089 (7) |
N3 | 0.0401 (8) | 0.0406 (7) | 0.0528 (8) | 0.0015 (6) | 0.0077 (7) | −0.0009 (7) |
C12 | 0.0356 (8) | 0.0326 (7) | 0.0368 (7) | 0.0007 (6) | −0.0014 (7) | 0.0021 (6) |
C5 | 0.0498 (10) | 0.0395 (9) | 0.0381 (8) | −0.0029 (8) | 0.0047 (8) | −0.0009 (7) |
C11 | 0.0436 (9) | 0.0357 (8) | 0.0415 (8) | −0.0005 (7) | −0.0003 (7) | 0.0040 (7) |
C8 | 0.0454 (10) | 0.0386 (9) | 0.0407 (9) | 0.0029 (8) | 0.0000 (8) | 0.0019 (7) |
C9 | 0.0523 (10) | 0.0432 (9) | 0.0521 (10) | 0.0129 (9) | −0.0088 (8) | −0.0013 (8) |
C14 | 0.0583 (12) | 0.0610 (12) | 0.0707 (13) | −0.0037 (11) | 0.0226 (12) | 0.0021 (9) |
C1 | 0.0388 (9) | 0.0476 (9) | 0.0441 (9) | −0.0044 (8) | 0.0042 (7) | −0.0129 (8) |
C2 | 0.0513 (12) | 0.0702 (14) | 0.0596 (12) | −0.0090 (10) | 0.0196 (10) | −0.0180 (10) |
C4 | 0.0742 (14) | 0.0496 (10) | 0.0495 (10) | −0.0103 (11) | 0.0164 (11) | 0.0068 (8) |
C3 | 0.0747 (16) | 0.0684 (15) | 0.0581 (12) | −0.0179 (12) | 0.0285 (12) | −0.0009 (10) |
C10 | 0.0397 (10) | 0.0547 (11) | 0.0572 (11) | 0.0100 (8) | −0.0044 (8) | −0.0157 (9) |
S1—C13 | 1.6744 (17) | C5—C11 | 1.472 (3) |
N1—C12 | 1.283 (2) | C8—C9 | 1.412 (2) |
N1—N2 | 1.3528 (19) | C8—H8 | 0.9300 |
C6—C1 | 1.394 (2) | C9—C10 | 1.367 (3) |
C6—C5 | 1.405 (2) | C9—H9 | 0.9300 |
C6—C7 | 1.410 (2) | C14—H14A | 0.9600 |
O1—C11 | 1.213 (2) | C14—H14B | 0.9600 |
N2—C13 | 1.362 (2) | C14—H14C | 0.9600 |
N2—H2 | 0.8600 | C1—C2 | 1.409 (3) |
C7—C8 | 1.363 (2) | C1—C10 | 1.411 (3) |
C7—C12 | 1.461 (2) | C2—C3 | 1.367 (3) |
C13—N3 | 1.312 (2) | C2—H2A | 0.9300 |
N3—C14 | 1.449 (2) | C4—C3 | 1.403 (3) |
N3—H3 | 0.8600 | C4—H4 | 0.9300 |
C12—C11 | 1.515 (2) | C3—H3A | 0.9300 |
C5—C4 | 1.364 (3) | C10—H10 | 0.9300 |
C12—N1—N2 | 116.93 (13) | C7—C8—H8 | 120.9 |
C1—C6—C5 | 123.08 (16) | C9—C8—H8 | 120.9 |
C1—C6—C7 | 123.95 (16) | C10—C9—C8 | 122.95 (18) |
C5—C6—C7 | 112.96 (15) | C10—C9—H9 | 118.5 |
N1—N2—C13 | 120.78 (14) | C8—C9—H9 | 118.5 |
N1—N2—H2 | 119.6 | N3—C14—H14A | 109.5 |
C13—N2—H2 | 119.6 | N3—C14—H14B | 109.5 |
C8—C7—C6 | 118.78 (16) | H14A—C14—H14B | 109.5 |
C8—C7—C12 | 134.48 (16) | N3—C14—H14C | 109.5 |
C6—C7—C12 | 106.73 (13) | H14A—C14—H14C | 109.5 |
N3—C13—N2 | 116.67 (15) | H14B—C14—H14C | 109.5 |
N3—C13—S1 | 125.49 (13) | C6—C1—C2 | 115.65 (19) |
N2—C13—S1 | 117.84 (13) | C6—C1—C10 | 115.92 (16) |
C13—N3—C14 | 124.05 (16) | C2—C1—C10 | 128.43 (18) |
C13—N3—H3 | 118.0 | C3—C2—C1 | 121.1 (2) |
C14—N3—H3 | 118.0 | C3—C2—H2A | 119.4 |
N1—C12—C7 | 125.20 (14) | C1—C2—H2A | 119.4 |
N1—C12—C11 | 127.56 (15) | C5—C4—C3 | 117.9 (2) |
C7—C12—C11 | 107.22 (14) | C5—C4—H4 | 121.1 |
C4—C5—C6 | 119.92 (18) | C3—C4—H4 | 121.1 |
C4—C5—C11 | 132.73 (18) | C2—C3—C4 | 122.4 (2) |
C6—C5—C11 | 107.34 (15) | C2—C3—H3A | 118.8 |
O1—C11—C5 | 129.05 (16) | C4—C3—H3A | 118.8 |
O1—C11—C12 | 125.21 (16) | C9—C10—C1 | 120.19 (17) |
C5—C11—C12 | 105.74 (14) | C9—C10—H10 | 119.9 |
C7—C8—C9 | 118.19 (17) | C1—C10—H10 | 119.9 |
C12—N1—N2—C13 | 178.14 (14) | C6—C5—C11—C12 | −0.95 (18) |
C1—C6—C7—C8 | −1.1 (2) | N1—C12—C11—O1 | −0.7 (3) |
C5—C6—C7—C8 | −179.95 (15) | C7—C12—C11—O1 | −179.08 (17) |
C1—C6—C7—C12 | 178.56 (15) | N1—C12—C11—C5 | 179.18 (16) |
C5—C6—C7—C12 | −0.34 (19) | C7—C12—C11—C5 | 0.76 (18) |
N1—N2—C13—N3 | 2.3 (2) | C6—C7—C8—C9 | 1.7 (2) |
N1—N2—C13—S1 | −178.08 (12) | C12—C7—C8—C9 | −177.74 (17) |
N2—C13—N3—C14 | −179.01 (17) | C7—C8—C9—C10 | −1.3 (3) |
S1—C13—N3—C14 | 1.4 (3) | C5—C6—C1—C2 | −1.3 (2) |
N2—N1—C12—C7 | 179.26 (15) | C7—C6—C1—C2 | 179.96 (16) |
N2—N1—C12—C11 | 1.1 (2) | C5—C6—C1—C10 | 178.58 (16) |
C8—C7—C12—N1 | 0.8 (3) | C7—C6—C1—C10 | −0.2 (2) |
C6—C7—C12—N1 | −178.75 (15) | C6—C1—C2—C3 | 0.6 (3) |
C8—C7—C12—C11 | 179.24 (18) | C10—C1—C2—C3 | −179.2 (2) |
C6—C7—C12—C11 | −0.29 (17) | C6—C5—C4—C3 | −0.7 (3) |
C1—C6—C5—C4 | 1.4 (3) | C11—C5—C4—C3 | 178.57 (19) |
C7—C6—C5—C4 | −179.72 (17) | C1—C2—C3—C4 | 0.0 (4) |
C1—C6—C5—C11 | −178.08 (15) | C5—C4—C3—C2 | 0.1 (3) |
C7—C6—C5—C11 | 0.83 (19) | C8—C9—C10—C1 | 0.0 (3) |
C4—C5—C11—O1 | −0.5 (4) | C6—C1—C10—C9 | 0.7 (2) |
C6—C5—C11—O1 | 178.88 (19) | C2—C1—C10—C9 | −179.5 (2) |
C4—C5—C11—C12 | 179.7 (2) |
Cg is the centroid of ring C1/C6–C10. |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O1 | 0.86 | 2.03 | 2.7178 (19) | 136 |
N3—H3···N1 | 0.86 | 2.26 | 2.6437 (19) | 107 |
N3—H3···S1i | 0.86 | 2.64 | 3.4407 (15) | 156 |
C4—H4···O1ii | 0.93 | 2.47 | 3.246 (2) | 141 |
C2—H2A···Cgiii | 0.93 | 2.76 | 3.502 (2) | 137 |
Symmetry codes: (i) −x+1, y−1/2, −z+1/2; (ii) x+1/2, −y+1/2, −z; (iii) x+1/2, −y−1/2, −z. |
Cg is the centroid of ring C1/C6–C10. |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O1 | 0.86 | 2.03 | 2.7178 (19) | 136 |
N3—H3···N1 | 0.86 | 2.26 | 2.6437 (19) | 107 |
N3—H3···S1i | 0.86 | 2.64 | 3.4407 (15) | 156 |
C4—H4···O1ii | 0.93 | 2.47 | 3.246 (2) | 141 |
C2—H2A···Cgiii | 0.93 | 2.76 | 3.502 (2) | 137 |
Symmetry codes: (i) −x+1, y−1/2, −z+1/2; (ii) x+1/2, −y+1/2, −z; (iii) x+1/2, −y−1/2, −z. |
Experimental details
Crystal data | |
Chemical formula | C14H11N3OS |
Mr | 269.33 |
Crystal system, space group | Orthorhombic, P212121 |
Temperature (K) | 293 |
a, b, c (Å) | 6.1110 (6), 10.0547 (11), 21.497 (2) |
V (Å3) | 1320.8 (2) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.24 |
Crystal size (mm) | 0.30 × 0.25 × 0.20 |
Data collection | |
Diffractometer | Bruker SMART APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2008) |
Tmin, Tmax | 0.932, 0.954 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 23135, 3941, 2929 |
Rint | 0.030 |
(sin θ/λ)max (Å−1) | 0.708 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.035, 0.100, 0.99 |
No. of reflections | 3941 |
No. of parameters | 173 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.19, −0.21 |
Absolute structure | Flack (1983); Friedel pairs |
Absolute structure parameter | −0.02 (8) |
Computer programs: APEX2 (Bruker, 2008), SAINT (Bruker, 2008), SHELXS97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 2012) and PLATON (Spek, 2009), SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).
Acknowledgements
The authors thank Dr Babu Varghese, SAIF, IIT, Chennai, India for the data collection.
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