organic compounds
5-Chloro-2-hydroxybenzaldehyde thiosemicarbazone
aDepartment of Chemistry, School of Science, Payame Noor University (PNU), Ardakan, Yazd, Iran, bDepartment of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran, cDepartment of Physics, Faculty of Arts and Sciences, Erciyes University, 38039 Kayseri, Turkey, and dDepartment of Physics, Faculty of Arts and Sciences, Ondokuz Mayıs University, 55139 Samsun, Turkey
*Correspondence e-mail: akkurt@erciyes.edu.tr
In the title compound, C8H8ClN3OS, the whole molecule assumes a planar structure, with an r.m.s. deviation of 0.108 (2) Å, and an intramolecular O—H⋯N hydrogen bond generates and S(6) and ring motif. In the each of two pairs of intermolecular N—H⋯S hydrogen bonds connects two molecules, forming inversion dimers with R22(8) motifs.
Related literature
For the biological activities and pharmaceutical properties of thiosemicarbazones and their derivatives, see: Casas et al. (2000); Ferrari et al. (2000); Maccioni et al. (2003). For bond-length data, see: Allen et al. (1987). For hydrogen-bond motifs, see: Bernstein et al. (1995).
Experimental
Crystal data
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Refinement
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Data collection: X-AREA (Stoe & Cie, 2002); cell X-AREA; data reduction: X-RED32 (Stoe & Cie, 2002); program(s) used to solve structure: SIR97 (Altomare et al., 1999); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
https://doi.org/10.1107/S1600536810043448/is2621sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810043448/is2621Isup2.hkl
A mixture of 5-chlorosalicylalehyde (0.01 mol) and hydrazinecarbothioamide (0.01 mol) in 20 ml of ethanol was refluxed for about 2 h. On cooling, the solid separated was filtered and recrystallized from ethanol. Crystals of (I) suitable for X-ray diffraction were obtained by slow evaporation of ethanol.
All H atoms were geometrically placed (C—H = 0.93 Å, N—H = 0.86 Å and O—H = 0.82 Å) and refined as riding with Uiso(H) = 1.2Ueq(C,N) and 1.5Ueq(O).
Thiosemicarbazones constitute an important class of N,S donor ligands due to their propensity to react with a wide range of metals (Casas et al., 2000). Thiosemicarbazones exhibit various biological activities and have therefore attracted considerable pharmaceutical interest (Maccioni et al., 2003; Ferrari et al., 2000). We here report the
of the title compound (I).The title molecule (I) shown in Fig. 1 is planar with an r.m.s. deviation of 0.108 Å and all bond lengths agree with standard values (Allen et al., 1987). Intramolecular O—H···N and N—H···N hydrogen bonds (Table 1) generate the S(6) and S(5) ring motifs, respectively (Bernstein et al., 1995).
In the
molecules are linked by N—H···S hydrogen bonds, forming R22(8) dimers (Table 1 and Fig. 2).For the biological activities and pharmaceutical properties of thiosemicarbazones and their derivatives, see: Casas et al. (2000); Ferrari et al. (2000); Maccioni et al. (2003). For bond-length data, see: Allen et al. (1987). For hydrogen-bond motifs, see: Bernstein et al. (1995).
Data collection: X-AREA (Stoe & Cie, 2002); cell
X-AREA (Stoe & Cie, 2002); data reduction: X-RED32 (Stoe & Cie, 2002); program(s) used to solve structure: SIR97 (Altomare et al., 1999); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).C8H8ClN3OS | F(000) = 472 |
Mr = 229.69 | Dx = 1.503 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 8344 reflections |
a = 5.8303 (4) Å | θ = 1.7–26.2° |
b = 23.6579 (17) Å | µ = 0.55 mm−1 |
c = 7.5893 (5) Å | T = 296 K |
β = 104.164 (6)° | Prism, colourless |
V = 1014.99 (12) Å3 | 0.52 × 0.33 × 0.08 mm |
Z = 4 |
Stoe IPDS II diffractometer | 1895 independent reflections |
Radiation source: sealed X-ray tube, 12 x 0.4 mm long-fine focus | 1524 reflections with I > 2σ(I) |
Plane graphite monochromator | Rint = 0.051 |
Detector resolution: 6.67 pixels mm-1 | θmax = 25.6°, θmin = 1.7° |
ω scans | h = −5→7 |
Absorption correction: integration (X-RED32; Stoe & Cie, 2002) | k = −28→26 |
Tmin = 0.763, Tmax = 0.957 | l = −9→9 |
4469 measured reflections |
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)] = 0.044 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.120 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0681P)2 + 0.120P] where P = (Fo2 + 2Fc2)/3 |
1895 reflections | (Δ/σ)max < 0.001 |
128 parameters | Δρmax = 0.20 e Å−3 |
0 restraints | Δρmin = −0.37 e Å−3 |
C8H8ClN3OS | V = 1014.99 (12) Å3 |
Mr = 229.69 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 5.8303 (4) Å | µ = 0.55 mm−1 |
b = 23.6579 (17) Å | T = 296 K |
c = 7.5893 (5) Å | 0.52 × 0.33 × 0.08 mm |
β = 104.164 (6)° |
Stoe IPDS II diffractometer | 1895 independent reflections |
Absorption correction: integration (X-RED32; Stoe & Cie, 2002) | 1524 reflections with I > 2σ(I) |
Tmin = 0.763, Tmax = 0.957 | Rint = 0.051 |
4469 measured reflections |
R[F2 > 2σ(F2)] = 0.044 | 0 restraints |
wR(F2) = 0.120 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.20 e Å−3 |
1895 reflections | Δρmin = −0.37 e Å−3 |
128 parameters |
Geometry. Bond distances, angles etc. have been calculated using the rounded fractional coordinates. All su's are estimated from the variances of the (full) variance-covariance matrix. The cell e.s.d.'s are taken into account in the estimation of distances, angles and torsion angles |
Refinement. Refinement on F2 for ALL reflections except those flagged by the user for potential systematic errors. Weighted R-factors wR and all goodnesses of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The observed criterion of F2 > σ(F2) is used only for calculating -R-factor-obs 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 | ||
Cl1 | 0.36123 (17) | 0.20555 (4) | −0.30970 (10) | 0.0868 (3) | |
S1 | 0.15507 (9) | 0.01021 (3) | 0.79551 (8) | 0.0559 (2) | |
O1 | 0.8537 (3) | 0.13549 (11) | 0.4272 (3) | 0.0750 (8) | |
N1 | 0.4525 (3) | 0.08332 (9) | 0.4467 (3) | 0.0489 (6) | |
N2 | 0.3002 (3) | 0.05468 (10) | 0.5260 (3) | 0.0523 (6) | |
N3 | 0.5874 (3) | 0.04298 (10) | 0.7883 (3) | 0.0524 (7) | |
C1 | 0.4996 (4) | 0.13306 (11) | 0.1830 (3) | 0.0493 (8) | |
C2 | 0.7333 (4) | 0.15067 (12) | 0.2573 (4) | 0.0573 (8) | |
C3 | 0.8480 (5) | 0.18395 (14) | 0.1559 (4) | 0.0687 (10) | |
C4 | 0.7368 (6) | 0.20095 (13) | −0.0164 (4) | 0.0702 (10) | |
C5 | 0.5049 (5) | 0.18372 (12) | −0.0912 (4) | 0.0604 (9) | |
C6 | 0.3886 (5) | 0.15099 (11) | 0.0062 (3) | 0.0542 (8) | |
C7 | 0.3665 (4) | 0.09979 (11) | 0.2818 (3) | 0.0507 (8) | |
C8 | 0.3636 (4) | 0.03756 (11) | 0.6999 (3) | 0.0454 (7) | |
H1 | 0.76270 | 0.12040 | 0.48000 | 0.1120* | |
H2 | 0.15960 | 0.04740 | 0.46260 | 0.0630* | |
H3 | 1.00350 | 0.19500 | 0.20550 | 0.0830* | |
H3A | 0.68790 | 0.05710 | 0.73440 | 0.0630* | |
H3B | 0.63280 | 0.03240 | 0.89980 | 0.0630* | |
H4 | 0.81520 | 0.22370 | −0.08260 | 0.0840* | |
H6 | 0.23310 | 0.14030 | −0.04510 | 0.0650* | |
H7 | 0.21210 | 0.08970 | 0.22430 | 0.0610* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.1118 (7) | 0.0820 (6) | 0.0700 (4) | 0.0054 (5) | 0.0287 (4) | 0.0188 (4) |
S1 | 0.0349 (3) | 0.0795 (5) | 0.0526 (3) | −0.0048 (3) | 0.0096 (2) | 0.0063 (3) |
O1 | 0.0458 (10) | 0.0951 (17) | 0.0791 (12) | −0.0077 (10) | 0.0058 (9) | 0.0132 (11) |
N1 | 0.0379 (9) | 0.0554 (12) | 0.0544 (10) | −0.0011 (8) | 0.0131 (8) | 0.0019 (9) |
N2 | 0.0336 (9) | 0.0683 (14) | 0.0529 (10) | −0.0059 (9) | 0.0065 (8) | 0.0074 (9) |
N3 | 0.0334 (9) | 0.0742 (15) | 0.0485 (10) | −0.0031 (9) | 0.0079 (7) | 0.0017 (9) |
C1 | 0.0447 (12) | 0.0466 (14) | 0.0597 (13) | 0.0017 (10) | 0.0189 (10) | −0.0007 (10) |
C2 | 0.0453 (12) | 0.0558 (16) | 0.0729 (15) | 0.0009 (11) | 0.0186 (11) | 0.0020 (12) |
C3 | 0.0489 (14) | 0.0623 (18) | 0.100 (2) | −0.0044 (12) | 0.0281 (14) | 0.0079 (15) |
C4 | 0.0725 (17) | 0.0577 (18) | 0.0926 (19) | 0.0020 (14) | 0.0438 (15) | 0.0108 (15) |
C5 | 0.0729 (17) | 0.0490 (15) | 0.0653 (14) | 0.0056 (13) | 0.0283 (12) | 0.0030 (11) |
C6 | 0.0540 (13) | 0.0505 (15) | 0.0595 (12) | 0.0029 (11) | 0.0168 (10) | −0.0014 (11) |
C7 | 0.0403 (12) | 0.0544 (15) | 0.0570 (12) | 0.0002 (10) | 0.0111 (10) | 0.0015 (11) |
C8 | 0.0344 (10) | 0.0510 (14) | 0.0505 (11) | 0.0009 (9) | 0.0096 (9) | −0.0029 (10) |
Cl1—C5 | 1.743 (3) | C1—C2 | 1.404 (4) |
S1—C8 | 1.690 (2) | C1—C6 | 1.405 (3) |
O1—C2 | 1.357 (4) | C1—C7 | 1.438 (3) |
O1—H1 | 0.8200 | C2—C3 | 1.383 (4) |
N1—N2 | 1.368 (3) | C3—C4 | 1.370 (4) |
N1—C7 | 1.289 (3) | C4—C5 | 1.393 (5) |
N2—C8 | 1.343 (3) | C5—C6 | 1.361 (4) |
N3—C8 | 1.319 (3) | C3—H3 | 0.9300 |
N2—H2 | 0.8600 | C4—H4 | 0.9300 |
N3—H3A | 0.8600 | C6—H6 | 0.9300 |
N3—H3B | 0.8600 | C7—H7 | 0.9300 |
Cl1···C5i | 3.606 (3) | C7···C8vi | 3.598 (4) |
S1···N3ii | 3.387 (2) | C7···N3vi | 3.440 (4) |
S1···N2iii | 3.491 (2) | C7···C3ii | 3.550 (4) |
S1···N3iv | 3.390 (2) | C8···C7vi | 3.598 (4) |
S1···H3Aii | 2.8700 | C8···C6vii | 3.530 (3) |
S1···H2iii | 2.7000 | C8···N1vi | 3.339 (3) |
S1···H3Biv | 2.5500 | C3···H7v | 3.0300 |
S1···H7iii | 3.1700 | C3···H4viii | 2.9900 |
O1···N1 | 2.681 (3) | C7···H3ii | 3.0500 |
O1···N2v | 3.168 (3) | C7···H1 | 2.4800 |
O1···H2v | 2.7100 | H1···N1 | 1.9700 |
N1···O1 | 2.681 (3) | H1···C7 | 2.4800 |
N1···N3 | 2.693 (3) | H1···H3A | 2.5600 |
N1···C8vi | 3.339 (3) | H2···O1ii | 2.7100 |
N2···O1ii | 3.168 (3) | H2···H7 | 2.1500 |
N2···S1iii | 3.491 (2) | H2···S1iii | 2.7000 |
N3···C6vii | 3.398 (3) | H3···C7v | 3.0500 |
N3···S1iv | 3.390 (2) | H3A···S1v | 2.8700 |
N3···S1v | 3.387 (2) | H3A···N1 | 2.3600 |
N3···N1 | 2.693 (3) | H3A···H1 | 2.5600 |
N3···C7vi | 3.440 (4) | H3B···S1iv | 2.5500 |
N1···H1 | 1.9700 | H4···C3i | 2.9900 |
N1···H3A | 2.3600 | H6···H7 | 2.4000 |
C3···C7v | 3.550 (4) | H7···C3ii | 3.0300 |
C5···Cl1viii | 3.606 (3) | H7···H2 | 2.1500 |
C6···N3ix | 3.398 (3) | H7···H6 | 2.4000 |
C6···C8ix | 3.530 (3) | H7···S1iii | 3.1700 |
C2—O1—H1 | 109.00 | Cl1—C5—C4 | 119.6 (2) |
N2—N1—C7 | 115.9 (2) | Cl1—C5—C6 | 119.9 (2) |
N1—N2—C8 | 122.0 (2) | C4—C5—C6 | 120.5 (3) |
C8—N2—H2 | 119.00 | C1—C6—C5 | 121.1 (3) |
N1—N2—H2 | 119.00 | N1—C7—C1 | 122.7 (2) |
H3A—N3—H3B | 120.00 | N2—C8—N3 | 118.1 (2) |
C8—N3—H3A | 120.00 | S1—C8—N2 | 118.92 (18) |
C8—N3—H3B | 120.00 | S1—C8—N3 | 123.01 (18) |
C2—C1—C6 | 118.0 (2) | C2—C3—H3 | 119.00 |
C6—C1—C7 | 118.8 (2) | C4—C3—H3 | 119.00 |
C2—C1—C7 | 123.2 (2) | C3—C4—H4 | 120.00 |
O1—C2—C1 | 121.9 (2) | C5—C4—H4 | 120.00 |
C1—C2—C3 | 120.0 (3) | C1—C6—H6 | 119.00 |
O1—C2—C3 | 118.1 (2) | C5—C6—H6 | 119.00 |
C2—C3—C4 | 121.2 (3) | N1—C7—H7 | 119.00 |
C3—C4—C5 | 119.2 (3) | C1—C7—H7 | 119.00 |
C7—N1—N2—C8 | −176.7 (2) | C6—C1—C2—C3 | −0.9 (4) |
N2—N1—C7—C1 | 176.5 (2) | C7—C1—C2—O1 | 2.5 (4) |
N1—N2—C8—S1 | 171.99 (18) | O1—C2—C3—C4 | −179.8 (3) |
N1—N2—C8—N3 | −8.0 (4) | C1—C2—C3—C4 | 0.9 (5) |
C7—C1—C2—C3 | −178.2 (3) | C2—C3—C4—C5 | −0.8 (5) |
C2—C1—C6—C5 | 1.0 (4) | C3—C4—C5—Cl1 | 179.5 (2) |
C7—C1—C6—C5 | 178.3 (3) | C3—C4—C5—C6 | 0.8 (5) |
C2—C1—C7—N1 | −0.3 (4) | Cl1—C5—C6—C1 | −179.6 (2) |
C6—C1—C7—N1 | −177.6 (2) | C4—C5—C6—C1 | −0.9 (4) |
C6—C1—C2—O1 | 179.8 (2) |
Symmetry codes: (i) x, −y+1/2, z−1/2; (ii) x−1, y, z; (iii) −x, −y, −z+1; (iv) −x+1, −y, −z+2; (v) x+1, y, z; (vi) −x+1, −y, −z+1; (vii) x, y, z+1; (viii) x, −y+1/2, z+1/2; (ix) x, y, z−1. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···N1 | 0.82 | 1.97 | 2.681 (3) | 144 |
N2—H2···S1iii | 0.86 | 2.70 | 3.491 (2) | 153 |
N3—H3A···S1v | 0.86 | 2.87 | 3.387 (2) | 120 |
N3—H3A···N1 | 0.86 | 2.36 | 2.693 (3) | 103 |
N3—H3B···S1iv | 0.86 | 2.55 | 3.390 (2) | 167 |
Symmetry codes: (iii) −x, −y, −z+1; (iv) −x+1, −y, −z+2; (v) x+1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C8H8ClN3OS |
Mr | 229.69 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 296 |
a, b, c (Å) | 5.8303 (4), 23.6579 (17), 7.5893 (5) |
β (°) | 104.164 (6) |
V (Å3) | 1014.99 (12) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.55 |
Crystal size (mm) | 0.52 × 0.33 × 0.08 |
Data collection | |
Diffractometer | Stoe IPDS II |
Absorption correction | Integration (X-RED32; Stoe & Cie, 2002) |
Tmin, Tmax | 0.763, 0.957 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 4469, 1895, 1524 |
Rint | 0.051 |
(sin θ/λ)max (Å−1) | 0.609 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.044, 0.120, 1.04 |
No. of reflections | 1895 |
No. of parameters | 128 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.20, −0.37 |
Computer programs: X-AREA (Stoe & Cie, 2002), X-RED32 (Stoe & Cie, 2002), SIR97 (Altomare et al., 1999), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997), WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···N1 | 0.82 | 1.97 | 2.681 (3) | 144 |
N2—H2···S1i | 0.86 | 2.70 | 3.491 (2) | 153 |
N3—H3A···S1ii | 0.86 | 2.87 | 3.387 (2) | 120 |
N3—H3A···N1 | 0.86 | 2.36 | 2.693 (3) | 103 |
N3—H3B···S1iii | 0.86 | 2.55 | 3.390 (2) | 167 |
Symmetry codes: (i) −x, −y, −z+1; (ii) x+1, y, z; (iii) −x+1, −y, −z+2. |
Acknowledgements
The authors acknowledge the Faculty of Arts and Sciences, Ondokuz Mayıs University, Turkey, for the use of the Stoe IPDS II diffractometer (purchased under grant F.279 of the University Research Fund). HK thanks Payame Noor University (PNU) for financial support of this work. RK thanks the Science and Research Branch of Islamic Azad University of Tehran.
References
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Thiosemicarbazones constitute an important class of N,S donor ligands due to their propensity to react with a wide range of metals (Casas et al., 2000). Thiosemicarbazones exhibit various biological activities and have therefore attracted considerable pharmaceutical interest (Maccioni et al., 2003; Ferrari et al., 2000). We here report the crystal structure of the title compound (I).
The title molecule (I) shown in Fig. 1 is planar with an r.m.s. deviation of 0.108 Å and all bond lengths agree with standard values (Allen et al., 1987). Intramolecular O—H···N and N—H···N hydrogen bonds (Table 1) generate the S(6) and S(5) ring motifs, respectively (Bernstein et al., 1995).
In the crystal structure, molecules are linked by N—H···S hydrogen bonds, forming R22(8) dimers (Table 1 and Fig. 2).