metal-organic compounds
Dichlorido{(2E)-2-[phenyl(pyridin-2-yl)methylidene]hydrazinecarbothioamide}cadmium(II) methanol monosolvate
aDepartment of Applied Chemistry, Cochin University of Science and Technology, Kochi 682 022, India, and bDepartment of Chemistry, Faculty of Science, Eastern University, Sri Lanka, Chenkalady, Sri Lanka
*Correspondence e-mail: msithambaresan@gmail.com
In the title compound, [CdCl2(C13H12N4S)]·CH3OH, the coordination geometry of the CdII ion is slightly distorted square-pyramidal, as indicated by the τ index of 0.36 (8). The S atom, two N atoms from the pyridyl-azomethine moiety and one of the Cl atoms comprise the basal plane, while the other Cl atom occupies the apical position. The hydrazinecarbothioamide moiety adopts an E conformation with respect to the azomethine bond. The solvate molecule in the plays a major role in interconnecting adjacent molecules by means of O—H⋯Cl and N—H⋯O hydrogen-bonding interactions. A supramolecular three-dimensional architecture is sustained in terms of further N—H⋯Cl and C—H⋯Cl hydrogen-bonding interactions.
Keywords: crystal structure.
CCDC reference: 1012335
Related literature
For metal complexes of hydrazinecarbothioamide and its derivatives, see: Sreekanth et al. (2004). For applications of hydrazinecarbothioamides, see: Joseph et al. (2004); Kumar et al. (2011, 2013). For the synthesis of related compounds, see: Philip et al. (2006). For related structures, see: Kunnath et al. (2012). For the calculation of the τ index, see: Addison et al. (1984).
Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2004); cell APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2008 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012) and DIAMOND (Brandenburg, 2010); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and publCIF (Westrip, 2010).
Supporting information
CCDC reference: 1012335
10.1107/S1600536814015694/fj2677sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536814015694/fj2677Isup2.hkl
The potentialy tridentate ligand (2E)-2-[phenyl(pyridin-2-yl)methylidene]hydrazinecarbothioamide was synthesized in situ by mixing equimolar methanolic solutions of phenyl(pyridin-2-yl)methanone (0.0916 g, 0.5 mmol), hydrazinecarbothioamide (0.0455 g, 0.5 mmol) and 5 drops of glacial acetic acid for 2 h. The title complex was prepared by adapting a reported procedure (Philip et al., 2006) by refluxing the above ligand solution and CdCl2·2.5H2O (0.1141 g, 0.5 mmol) for 3 h. The resulting solution was cooled at room temperature. Upon slow evaporation, yellow coloured product formed were collected, washed with few drops of methanol and dried over P4O10 in vacuo. Yellow blocked shaped single crystals of the title compound suitable for X-ray analysis were obtained by recrystallization from methanol. The compound was obtained in 56%, yield (0.1320 g).
IR (KBr, \v in cm-1): 3439, 3225, 3125, 1603, 1380, 1314, 1213, 1147, 780, 659, 560.
All H atoms on C were placed in calculated positions, guided by difference maps, with C—H bond distances of 0.93–0.96 Å. H atoms were assigned Uiso(H) values of 1.2Ueq(1.5 for methyl group). H3', H1', H4A and H4B were located from a difference Fourier map and refined isotropically. Omitted owing to bad disagreement were reflections (0 1 1), (0 0 2) and (0 2 0).
Data collection: APEX2 (Bruker, 2004); cell
APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2008 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012) and DIAMOND (Brandenburg, 2010); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and publCIF (Westrip, 2010).Fig. 1. ORTEP view of the compound, drawn with 50% probability displacement ellipsoids for the non-H atoms. | |
Fig. 2. Graphical representation showing hydrogen bonding interactions in the crystal structure of [C13H12CdCl2N4S]·(CH4O). | |
Fig. 3. The hydrogen bonding interactions build a double layer progressing along c axis in the title compound. | |
Fig. 4. A view of the unit cell along a axis. |
[CdCl2(C13H12N4S)]·CH4O | F(000) = 936 |
Mr = 471.67 | Dx = 1.713 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
a = 7.7213 (4) Å | Cell parameters from 8955 reflections |
b = 12.9759 (8) Å | θ = 2.7–28.1° |
c = 18.3318 (11) Å | µ = 1.61 mm−1 |
β = 95.248 (2)° | T = 293 K |
V = 1828.98 (18) Å3 | Block, yellow |
Z = 4 | 0.30 × 0.25 × 0.20 mm |
Bruker Kappa APEXII CCD diffractometer | 4392 independent reflections |
Radiation source: fine-focus sealed tube | 3804 reflections with I > 2σ(I) |
Detector resolution: 8.33 pixels mm-1 | Rint = 0.031 |
ω and ϕ scan | θmax = 28.0°, θmin = 2.7° |
Absorption correction: multi-scan (SADABS; Bruker, 2004) | h = −9→10 |
Tmin = 0.624, Tmax = 0.725 | k = −17→13 |
13483 measured reflections | l = −24→24 |
Refinement on F2 | Hydrogen site location: inferred from neighbouring sites |
Least-squares matrix: full | H atoms treated by a mixture of independent and constrained refinement |
R[F2 > 2σ(F2)] = 0.028 | w = 1/[σ2(Fo2) + (0.0364P)2 + 1.2328P] where P = (Fo2 + 2Fc2)/3 |
wR(F2) = 0.074 | (Δ/σ)max = 0.001 |
S = 0.99 | Δρmax = 0.50 e Å−3 |
4392 reflections | Δρmin = −0.60 e Å−3 |
226 parameters | Extinction correction: SHELXL, Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
5 restraints | Extinction coefficient: 0.0143 (5) |
[CdCl2(C13H12N4S)]·CH4O | V = 1828.98 (18) Å3 |
Mr = 471.67 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 7.7213 (4) Å | µ = 1.61 mm−1 |
b = 12.9759 (8) Å | T = 293 K |
c = 18.3318 (11) Å | 0.30 × 0.25 × 0.20 mm |
β = 95.248 (2)° |
Bruker Kappa APEXII CCD diffractometer | 4392 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2004) | 3804 reflections with I > 2σ(I) |
Tmin = 0.624, Tmax = 0.725 | Rint = 0.031 |
13483 measured reflections |
R[F2 > 2σ(F2)] = 0.028 | 5 restraints |
wR(F2) = 0.074 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.99 | Δρmax = 0.50 e Å−3 |
4392 reflections | Δρmin = −0.60 e Å−3 |
226 parameters |
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. |
x | y | z | Uiso*/Ueq | ||
C1 | 0.6778 (3) | −0.0088 (2) | 0.60386 (14) | 0.0421 (6) | |
H1 | 0.6464 | 0.0012 | 0.5542 | 0.050* | |
C1S | 1.5904 (6) | 0.1528 (4) | 0.8959 (2) | 0.0876 (14) | |
H1S1 | 1.7000 | 0.1843 | 0.9116 | 0.131* | |
H1S2 | 1.6102 | 0.0858 | 0.8762 | 0.131* | |
H1S3 | 1.5223 | 0.1463 | 0.9369 | 0.131* | |
C2 | 0.5687 (3) | −0.0651 (2) | 0.64401 (17) | 0.0507 (7) | |
H2 | 0.4663 | −0.0931 | 0.6218 | 0.061* | |
C3 | 0.6140 (4) | −0.0790 (3) | 0.71739 (17) | 0.0526 (7) | |
H3 | 0.5415 | −0.1157 | 0.7458 | 0.063* | |
C4 | 0.7687 (3) | −0.0379 (2) | 0.74891 (15) | 0.0416 (6) | |
H4 | 0.8021 | −0.0473 | 0.7985 | 0.050* | |
C5 | 0.8727 (3) | 0.01721 (18) | 0.70534 (12) | 0.0314 (4) | |
C6 | 1.0420 (3) | 0.06173 (18) | 0.73536 (12) | 0.0306 (4) | |
C7 | 1.0948 (3) | 0.05746 (19) | 0.81515 (12) | 0.0330 (5) | |
C8 | 1.0602 (4) | 0.1385 (2) | 0.85957 (16) | 0.0522 (7) | |
H8 | 1.0030 | 0.1965 | 0.8397 | 0.063* | |
C9 | 1.1105 (5) | 0.1341 (3) | 0.93427 (17) | 0.0629 (9) | |
H9 | 1.0881 | 0.1895 | 0.9642 | 0.075* | |
C10 | 1.1920 (5) | 0.0491 (3) | 0.96346 (16) | 0.0654 (9) | |
H10 | 1.2226 | 0.0455 | 1.0137 | 0.078* | |
C11 | 1.2297 (5) | −0.0314 (3) | 0.91957 (18) | 0.0739 (11) | |
H11 | 1.2879 | −0.0889 | 0.9399 | 0.089* | |
C12 | 1.1816 (4) | −0.0279 (2) | 0.84519 (16) | 0.0557 (7) | |
H12 | 1.2075 | −0.0827 | 0.8154 | 0.067* | |
C13 | 1.3920 (3) | 0.18172 (19) | 0.65912 (12) | 0.0330 (5) | |
N1 | 0.8267 (2) | 0.03206 (16) | 0.63337 (10) | 0.0334 (4) | |
N2 | 1.1338 (2) | 0.10222 (16) | 0.68830 (10) | 0.0319 (4) | |
N3 | 1.2894 (3) | 0.14580 (17) | 0.71024 (11) | 0.0361 (5) | |
S1 | 1.33814 (8) | 0.17757 (6) | 0.56772 (3) | 0.03929 (15) | |
Cl1 | 0.87665 (9) | 0.10250 (6) | 0.44174 (3) | 0.04381 (16) | |
Cl2 | 0.88268 (9) | 0.29835 (6) | 0.61058 (4) | 0.04826 (16) | |
Cd1 | 1.00948 (2) | 0.13266 (2) | 0.56724 (2) | 0.03757 (8) | |
O1S | 1.5008 (3) | 0.2144 (2) | 0.84178 (12) | 0.0690 (7) | |
N4 | 1.5417 (3) | 0.2202 (2) | 0.68671 (12) | 0.0442 (5) | |
H3' | 1.326 (4) | 0.147 (2) | 0.7569 (7) | 0.051 (9)* | |
H1' | 1.469 (6) | 0.2722 (18) | 0.857 (2) | 0.094 (15)* | |
H4A | 1.572 (3) | 0.227 (2) | 0.7320 (6) | 0.041 (8)* | |
H4B | 1.618 (3) | 0.244 (2) | 0.6613 (12) | 0.049 (8)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0354 (12) | 0.0465 (15) | 0.0425 (13) | −0.0005 (11) | −0.0063 (10) | −0.0023 (11) |
C1S | 0.072 (3) | 0.121 (4) | 0.068 (2) | 0.026 (2) | −0.006 (2) | −0.008 (2) |
C2 | 0.0336 (13) | 0.0547 (17) | 0.0611 (17) | −0.0111 (12) | −0.0094 (11) | 0.0044 (14) |
C3 | 0.0382 (14) | 0.0572 (18) | 0.0623 (17) | −0.0142 (12) | 0.0041 (12) | 0.0157 (15) |
C4 | 0.0363 (12) | 0.0457 (14) | 0.0422 (12) | −0.0057 (10) | 0.0008 (10) | 0.0085 (11) |
C5 | 0.0290 (10) | 0.0334 (12) | 0.0317 (10) | −0.0004 (9) | 0.0019 (8) | −0.0002 (9) |
C6 | 0.0304 (10) | 0.0323 (11) | 0.0290 (10) | −0.0006 (9) | 0.0018 (8) | 0.0000 (9) |
C7 | 0.0327 (11) | 0.0383 (13) | 0.0280 (10) | −0.0060 (9) | 0.0018 (8) | 0.0016 (9) |
C8 | 0.0618 (18) | 0.0534 (18) | 0.0414 (14) | 0.0111 (13) | 0.0053 (13) | −0.0063 (12) |
C9 | 0.077 (2) | 0.074 (2) | 0.0386 (15) | −0.0028 (17) | 0.0085 (14) | −0.0200 (15) |
C10 | 0.084 (2) | 0.079 (2) | 0.0308 (13) | −0.0169 (19) | −0.0070 (14) | 0.0060 (15) |
C11 | 0.109 (3) | 0.062 (2) | 0.0453 (17) | 0.004 (2) | −0.0225 (18) | 0.0132 (15) |
C12 | 0.079 (2) | 0.0440 (16) | 0.0415 (14) | 0.0086 (15) | −0.0104 (13) | −0.0027 (12) |
C13 | 0.0301 (11) | 0.0344 (12) | 0.0350 (11) | −0.0020 (9) | 0.0055 (9) | −0.0026 (9) |
N1 | 0.0307 (9) | 0.0377 (11) | 0.0312 (9) | −0.0007 (8) | −0.0005 (7) | −0.0020 (8) |
N2 | 0.0271 (9) | 0.0381 (10) | 0.0299 (9) | −0.0059 (8) | −0.0004 (7) | −0.0006 (8) |
N3 | 0.0295 (10) | 0.0521 (13) | 0.0261 (9) | −0.0099 (8) | −0.0006 (7) | −0.0007 (8) |
S1 | 0.0343 (3) | 0.0535 (4) | 0.0306 (3) | −0.0059 (3) | 0.0057 (2) | 0.0016 (3) |
Cl1 | 0.0462 (3) | 0.0522 (4) | 0.0309 (3) | 0.0028 (3) | −0.0080 (2) | −0.0044 (3) |
Cl2 | 0.0479 (4) | 0.0491 (4) | 0.0494 (3) | 0.0008 (3) | 0.0134 (3) | −0.0027 (3) |
Cd1 | 0.03411 (11) | 0.05315 (14) | 0.02497 (10) | −0.00521 (7) | 0.00006 (6) | 0.00039 (7) |
O1S | 0.0751 (15) | 0.091 (2) | 0.0399 (11) | 0.0034 (14) | 0.0001 (10) | −0.0176 (12) |
N4 | 0.0326 (11) | 0.0592 (15) | 0.0409 (11) | −0.0146 (10) | 0.0046 (9) | −0.0074 (11) |
C1—N1 | 1.334 (3) | C9—C10 | 1.356 (5) |
C1—C2 | 1.378 (4) | C9—H9 | 0.9300 |
C1—H1 | 0.9300 | C10—C11 | 1.366 (5) |
C1S—O1S | 1.405 (5) | C10—H10 | 0.9300 |
C1S—H1S1 | 0.9600 | C11—C12 | 1.381 (4) |
C1S—H1S2 | 0.9600 | C11—H11 | 0.9300 |
C1S—H1S3 | 0.9600 | C12—H12 | 0.9300 |
C2—C3 | 1.370 (4) | C13—N4 | 1.317 (3) |
C2—H2 | 0.9300 | C13—N3 | 1.363 (3) |
C3—C4 | 1.385 (4) | C13—S1 | 1.690 (2) |
C3—H3 | 0.9300 | N1—Cd1 | 2.341 (2) |
C4—C5 | 1.383 (3) | N2—N3 | 1.356 (3) |
C4—H4 | 0.9300 | N2—Cd1 | 2.3690 (19) |
C5—N1 | 1.349 (3) | N3—H3' | 0.876 (10) |
C5—C6 | 1.488 (3) | S1—Cd1 | 2.6030 (6) |
C6—N2 | 1.278 (3) | Cl1—Cd1 | 2.4630 (6) |
C6—C7 | 1.483 (3) | Cl2—Cd1 | 2.5208 (7) |
C7—C8 | 1.371 (4) | O1S—H1' | 0.846 (10) |
C7—C12 | 1.382 (4) | N4—H4A | 0.845 (9) |
C8—C9 | 1.390 (4) | N4—H4B | 0.841 (10) |
C8—H8 | 0.9300 | ||
N1—C1—C2 | 122.7 (2) | C11—C10—H10 | 119.8 |
N1—C1—H1 | 118.7 | C10—C11—C12 | 120.2 (3) |
C2—C1—H1 | 118.7 | C10—C11—H11 | 119.9 |
O1S—C1S—H1S1 | 109.5 | C12—C11—H11 | 119.9 |
O1S—C1S—H1S2 | 109.5 | C11—C12—C7 | 119.8 (3) |
H1S1—C1S—H1S2 | 109.5 | C11—C12—H12 | 120.1 |
O1S—C1S—H1S3 | 109.5 | C7—C12—H12 | 120.1 |
H1S1—C1S—H1S3 | 109.5 | N4—C13—N3 | 114.2 (2) |
H1S2—C1S—H1S3 | 109.5 | N4—C13—S1 | 121.38 (18) |
C3—C2—C1 | 118.7 (2) | N3—C13—S1 | 124.39 (17) |
C3—C2—H2 | 120.7 | C1—N1—C5 | 118.7 (2) |
C1—C2—H2 | 120.7 | C1—N1—Cd1 | 123.32 (17) |
C2—C3—C4 | 119.5 (3) | C5—N1—Cd1 | 117.97 (14) |
C2—C3—H3 | 120.3 | C6—N2—N3 | 120.16 (19) |
C4—C3—H3 | 120.3 | C6—N2—Cd1 | 119.91 (15) |
C5—C4—C3 | 118.8 (2) | N3—N2—Cd1 | 118.72 (14) |
C5—C4—H4 | 120.6 | N2—N3—C13 | 119.59 (19) |
C3—C4—H4 | 120.6 | N2—N3—H3' | 120 (2) |
N1—C5—C4 | 121.6 (2) | C13—N3—H3' | 121 (2) |
N1—C5—C6 | 116.77 (19) | C13—S1—Cd1 | 99.32 (8) |
C4—C5—C6 | 121.6 (2) | N1—Cd1—N2 | 68.51 (6) |
N2—C6—C7 | 124.2 (2) | N1—Cd1—Cl1 | 100.12 (5) |
N2—C6—C5 | 115.62 (19) | N2—Cd1—Cl1 | 161.25 (6) |
C7—C6—C5 | 120.20 (19) | N1—Cd1—Cl2 | 92.43 (5) |
C8—C7—C12 | 119.4 (2) | N2—Cd1—Cl2 | 89.01 (5) |
C8—C7—C6 | 120.4 (2) | Cl1—Cd1—Cl2 | 106.82 (2) |
C12—C7—C6 | 120.2 (2) | N1—Cd1—S1 | 139.20 (5) |
C7—C8—C9 | 120.1 (3) | N2—Cd1—S1 | 73.91 (5) |
C7—C8—H8 | 120.0 | Cl1—Cd1—S1 | 111.18 (2) |
C9—C8—H8 | 120.0 | Cl2—Cd1—S1 | 102.39 (2) |
C10—C9—C8 | 120.0 (3) | C1S—O1S—H1' | 114 (3) |
C10—C9—H9 | 120.0 | C13—N4—H4A | 124.5 (17) |
C8—C9—H9 | 120.0 | C13—N4—H4B | 124.1 (18) |
C9—C10—C11 | 120.4 (3) | H4A—N4—H4B | 111 (2) |
C9—C10—H10 | 119.8 | ||
N1—C1—C2—C3 | 0.6 (5) | C8—C7—C12—C11 | 1.2 (5) |
C1—C2—C3—C4 | −1.1 (5) | C6—C7—C12—C11 | −179.7 (3) |
C2—C3—C4—C5 | 0.7 (5) | C2—C1—N1—C5 | 0.3 (4) |
C3—C4—C5—N1 | 0.2 (4) | C2—C1—N1—Cd1 | −177.9 (2) |
C3—C4—C5—C6 | −178.9 (3) | C4—C5—N1—C1 | −0.7 (4) |
N1—C5—C6—N2 | −5.7 (3) | C6—C5—N1—C1 | 178.4 (2) |
C4—C5—C6—N2 | 173.4 (2) | C4—C5—N1—Cd1 | 177.54 (19) |
N1—C5—C6—C7 | 174.3 (2) | C6—C5—N1—Cd1 | −3.3 (3) |
C4—C5—C6—C7 | −6.6 (4) | C7—C6—N2—N3 | −0.6 (4) |
N2—C6—C7—C8 | 86.1 (3) | C5—C6—N2—N3 | 179.3 (2) |
C5—C6—C7—C8 | −93.9 (3) | C7—C6—N2—Cd1 | −167.91 (17) |
N2—C6—C7—C12 | −93.0 (3) | C5—C6—N2—Cd1 | 12.1 (3) |
C5—C6—C7—C12 | 87.0 (3) | C6—N2—N3—C13 | 175.0 (2) |
C12—C7—C8—C9 | −0.7 (5) | Cd1—N2—N3—C13 | −17.5 (3) |
C6—C7—C8—C9 | −179.8 (3) | N4—C13—N3—N2 | −178.5 (2) |
C7—C8—C9—C10 | −0.8 (5) | S1—C13—N3—N2 | 0.8 (3) |
C8—C9—C10—C11 | 1.8 (6) | N4—C13—S1—Cd1 | −167.7 (2) |
C9—C10—C11—C12 | −1.4 (6) | N3—C13—S1—Cd1 | 13.1 (2) |
C10—C11—C12—C7 | −0.1 (6) |
D—H···A | D—H | H···A | D···A | D—H···A |
N4—H4A···O1S | 0.85 (1) | 2.14 (2) | 2.890 (3) | 148 (2) |
N4—H4B···Cl2i | 0.84 (1) | 2.43 (1) | 3.253 (2) | 167 (3) |
N3—H3′···O1S | 0.88 (1) | 2.15 (2) | 2.924 (3) | 147 (3) |
O1S—H1′···Cl1ii | 0.85 (1) | 2.40 (2) | 3.201 (3) | 158 (4) |
C2—H2···Cl1iii | 0.93 | 2.80 | 3.680 (3) | 159 |
Symmetry codes: (i) x+1, y, z; (ii) x+1/2, −y+1/2, z+1/2; (iii) −x+1, −y, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
N4—H4A···O1S | 0.845 (9) | 2.139 (15) | 2.890 (3) | 148 (2) |
N4—H4B···Cl2i | 0.841 (10) | 2.427 (12) | 3.253 (2) | 167 (3) |
N3—H3'···O1S | 0.876 (10) | 2.15 (2) | 2.924 (3) | 147 (3) |
O1S—H1'···Cl1ii | 0.846 (10) | 2.40 (2) | 3.201 (3) | 158 (4) |
C2—H2···Cl1iii | 0.9300 | 2.80 | 3.680 (3) | 159 |
Symmetry codes: (i) x+1, y, z; (ii) x+1/2, −y+1/2, z+1/2; (iii) −x+1, −y, −z+1. |
Acknowledgements
AAA is grateful to the Council for Scientific and Industrial Research, New Delhi, India for the award of a Senior Research Fellowship. MRPK thanks the University Grants Commission, New Delhi, for a UGC–BSR one-time grant to faculty. We thank the Sophisticated Analytical Instruments Facility, Cochin University of S & T, Kochi-22, India, for the diffraction measurements and FT–IR studies.
References
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The importance of hydrazinecarbothioamide is increasing in various fields due to its wide range of medicinal applications (Joseph et al., 2004) and structural diversity due to their variable coordinative abilities (Sreekanth et al., 2004) arising from thioamido-thioiminol tautomerism. Moreover it also found to serve as a corrosion inhibitor on mild steel in HCl (Kumar et al., 2011). Recently a new heterocyclic hydrazinecarbothioamide has been developed as colorimetric and turn on fluorescent sensors for fluoride anion (Kumar et al., 2013).
The title complex [C13H12CdCl2N4S]·(CH4O) adopts an E configuration with respect to C6═N2 bond and the tridentate ligand has its coordinating entities disposed in a cis fashion to each other (Fig. 1). The Cd atom in the complex is N,N',S chelated by the thioamido form of the hydrazinecarbothioamide ligand. The C6═N2 [1.278 (3) Å] and C13=S1 [1.690 (2) Å] bond distances, very close to the formal C═N and C═S bond lengths respectively confirm the azomethine bond formation and the coordination via thioamido form. The coordination geometry around Cd(II) ion is almost square pyramidal (Addison et al., 1984) with a slight distortion (τ = 0.36 (8)). The S1 atom of the hydrazinecarbothioamide moiety, the imino N2 atom, pyridine N1 atom and the Cl1 atom comprise the basal plane while the apical position is occupied by the Cl2 atom (Kunnath et al., 2012). However, the deviation from the ideal square pyramidal geometry is observed by the displacement of Cd atom from the basal plane and the trans angle of the basal atoms (Table 1).
There are four classical O–H···Cl, N–H···O and N–H···Cl and one non-classical C–H···Cl intermolecular hydrogen bonding interactions (Table 1, Fig. 2). Three of the classical interactions connect two neighbouring complexes through a solvate molecule with D···A distances of 3.201 (3), 2.924 (3) and 2.890 (3) Å. The other two classical and non-classical interactions directly connect two more neighbouring molecules directly to the main molecule with D···A distances of 3.253 (2) and 3.680 (3) Å respectively. These hydrogen bonding interactions build a double layer (Fig. 3) supramolecular chain along c axis. In addition to this, there are two very weak π···π interactions present with Cg···Cg distances of greater than 4 Å. Fig. 4 shows the packing diagram of the title compound along a axis.