organic compounds
N-Ethyl-2-[1-(2-hydroxy-4-methylphenyl)ethylidene]hydrazinecarbothioamide
aDepartment of Chemistry, Keene State College, 229 Main Street, Keene, NH 03435-2001, USA
*Correspondence e-mail: jjasinski@keene.edu
The title compound, C12H17N3OS, crystallizes with two independent molecules (A and B) in the The dihedral angle between the mean planes of the benzene ring and the hydrazinecarbothioamide group are 6.9 (4) and 37.2 (5)° in molecules A and B, respectively. An intramolecular O—H⋯N hydrogen bond is observed in each molecule. This serves to maintain an approximately planar conformation for molecule A, but leaves a significant twist between these two groups in molecule B. In the crystal, a weak N—H⋯S interaction is observed, forming inversion dimers among the B molecules and resulting in an R22(8) motif. These dimers are further interconnected by weak N—H⋯O and C—H⋯O intermolecular interactions, forming chains along [011].
CCDC reference: 1005355
Related literature
For the biological activity of thiosemicarbazones, see: Chellan et al. (2010). For binding motifs of thiosemicarbazones, see: Lobana et al. (2009). For thiosemicarbazones as ligands in catalysis, see: Xie et al. (2010). For related structures, see: Anderson et al. (2012, 2013a,b).
Experimental
Crystal data
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Data collection: CrysAlis PRO (Agilent, 2012); cell CrysAlis PRO; data reduction: CrysAlis RED (Agilent, 2012); program(s) used to solve structure: SUPERFLIP (Palatinus & Chapuis, 2007; Palatinus & van der Lee, 2008; Palatinus et al., 2012).; program(s) used to refine structure: SHELXL2012 (Sheldrick, 2008); molecular graphics: OLEX2 (Dolomanov et al., 2009); software used to prepare material for publication: OLEX2.
Supporting information
CCDC reference: 1005355
10.1107/S1600536814012203/fj2676sup1.cif
contains datablock I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536814012203/fj2676Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536814012203/fj2676Isup3.cml
A 25 mL round bottom flask was charged with 0.1986 g (1.428 mmol) of 4'-methylacetophenone, 0.1702 g (1.428 mmol) of 4-ethyl-3-thiosemicarbazide and dissolved in 5 mL of a 1:1 ethanol: water solution and refluxed for 96 hours (Fig. 3). The reaction was allowed to cool to room temperature before dichloromethane (5 mL) and deionized water (5mL) were added, and the organic layer was separated. The aqueous layer was then extracted with an additional 5 mL of dichloromethane. The organic layers were then combined, washed with brine (2 X 5 mL), dried with magnesium sulfate, and the solvent removed in vacuo resulting in an off-white powder. The product was recrystallized from dichloromethane. m.p. 428–431 K.
All of the H atoms were placed in their calculated positions and then refined using the riding model with Atom—H lengths of 0.95Å (CH), 0.99Å (CH2), 0.98Å (CH3), 0.88Å (NH) or 0.84Å (OH). Isotropic displacement parameters for these atoms were set to 1.2 (CH, CH2, NH) or 1.5 (CH3, OH) times Ueq of the parent atom. Idealised Me refined as rotating group. Idealised tetrahedral OH refined as rotating group.
Data collection: CrysAlis PRO (Agilent, 2012); cell
CrysAlis PRO (Agilent, 2012); data reduction: CrysAlis RED (Agilent, 2012); program(s) used to solve structure: SUPERFLIP (Palatinus & Chapuis, 2007; Palatinus & van der Lee, 2008; Palatinus et al., 2012).; program(s) used to refine structure: SHELXL2012 (Sheldrick, 2008); molecular graphics: OLEX2 (Dolomanov et al., 2009); software used to prepare material for publication: OLEX2 (Dolomanov et al., 2009).Fig. 1. ORTEP drawing of (I), C12H17N3OS, showing the labeling scheme of molecules A and B with 30% probability displacement ellipsoids. | |
Fig. 2. Molecular packing for (I) viewed along the a axis. Dashed lines indicate weak N2B—H2B···S1B intermolecular interactions forming inversion dimers among the B molecules in an R22[8] motif format. These dimers are further interconnected by weak N1B—H1BA···O1A and C10A—HH10B···O1B intermolecular interactions forming polymeric chains along [011]. | |
Fig. 3. Reaction scheme. |
C12H17N3OS | Z = 4 |
Mr = 251.34 | F(000) = 536 |
Triclinic, P1 | Dx = 1.271 Mg m−3 |
a = 7.4253 (4) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 8.7713 (4) Å | Cell parameters from 4160 reflections |
c = 20.7093 (11) Å | θ = 3.6–32.3° |
α = 96.238 (4)° | µ = 0.24 mm−1 |
β = 94.400 (5)° | T = 173 K |
γ = 100.177 (4)° | Irregular, colourless |
V = 1313.35 (12) Å3 | 0.28 × 0.24 × 0.12 mm |
Agilent Eos Gemini diffractometer | 8692 independent reflections |
Radiation source: Enhance (Mo) X-ray Source | 5875 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.038 |
Detector resolution: 16.0416 pixels mm-1 | θmax = 32.9°, θmin = 3.1° |
ω scans | h = −11→11 |
Absorption correction: multi-scan (CrysAlis PRO and CrysAlis RED; Agilent, 2012) | k = −12→13 |
Tmin = 0.693, Tmax = 1.000 | l = −26→30 |
17011 measured reflections |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.070 | H-atom parameters constrained |
wR(F2) = 0.204 | w = 1/[σ2(Fo2) + (0.0861P)2 + 0.5803P] where P = (Fo2 + 2Fc2)/3 |
S = 1.09 | (Δ/σ)max = 0.002 |
8692 reflections | Δρmax = 0.66 e Å−3 |
315 parameters | Δρmin = −0.38 e Å−3 |
0 restraints |
C12H17N3OS | γ = 100.177 (4)° |
Mr = 251.34 | V = 1313.35 (12) Å3 |
Triclinic, P1 | Z = 4 |
a = 7.4253 (4) Å | Mo Kα radiation |
b = 8.7713 (4) Å | µ = 0.24 mm−1 |
c = 20.7093 (11) Å | T = 173 K |
α = 96.238 (4)° | 0.28 × 0.24 × 0.12 mm |
β = 94.400 (5)° |
Agilent Eos Gemini diffractometer | 8692 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO and CrysAlis RED; Agilent, 2012) | 5875 reflections with I > 2σ(I) |
Tmin = 0.693, Tmax = 1.000 | Rint = 0.038 |
17011 measured reflections |
R[F2 > 2σ(F2)] = 0.070 | 0 restraints |
wR(F2) = 0.204 | H-atom parameters constrained |
S = 1.09 | Δρmax = 0.66 e Å−3 |
8692 reflections | Δρmin = −0.38 e Å−3 |
315 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes. |
x | y | z | Uiso*/Ueq | ||
S1A | 0.83372 (9) | 0.27257 (8) | 1.00813 (3) | 0.04037 (17) | |
O1A | 0.6515 (3) | 0.23324 (18) | 0.72182 (8) | 0.0367 (4) | |
H1A | 0.6753 | 0.2509 | 0.7625 | 0.055* | |
N1A | 0.6804 (4) | 0.1452 (2) | 0.89037 (10) | 0.0445 (5) | |
H1AA | 0.6540 | 0.1539 | 0.8489 | 0.053* | |
N2A | 0.8328 (3) | 0.3978 (2) | 0.89858 (9) | 0.0292 (4) | |
H2A | 0.8879 | 0.4857 | 0.9220 | 0.035* | |
N3A | 0.8001 (3) | 0.3907 (2) | 0.83175 (8) | 0.0264 (3) | |
C1A | 0.7795 (3) | 0.2685 (3) | 0.92817 (10) | 0.0308 (4) | |
C2A | 0.8520 (3) | 0.5138 (2) | 0.80405 (10) | 0.0262 (4) | |
C3A | 0.8189 (3) | 0.4995 (2) | 0.73234 (10) | 0.0244 (4) | |
C4A | 0.7229 (3) | 0.3614 (2) | 0.69440 (10) | 0.0253 (4) | |
C5A | 0.6966 (3) | 0.3517 (2) | 0.62696 (10) | 0.0288 (4) | |
H5A | 0.6272 | 0.2590 | 0.6027 | 0.035* | |
C6A | 0.7694 (3) | 0.4746 (3) | 0.59403 (10) | 0.0295 (4) | |
C7A | 0.8656 (3) | 0.6109 (3) | 0.63058 (11) | 0.0332 (5) | |
H7A | 0.9159 | 0.6967 | 0.6091 | 0.040* | |
C8A | 0.8889 (3) | 0.6230 (2) | 0.69794 (11) | 0.0307 (4) | |
H8A | 0.9542 | 0.7179 | 0.7218 | 0.037* | |
C9A | 0.7471 (4) | 0.4560 (3) | 0.52077 (11) | 0.0431 (6) | |
H9AA | 0.8343 | 0.3935 | 0.5038 | 0.065* | |
H9AB | 0.7712 | 0.5591 | 0.5056 | 0.065* | |
H9AC | 0.6213 | 0.4033 | 0.5050 | 0.065* | |
C10A | 0.9427 (5) | 0.6663 (3) | 0.84219 (12) | 0.0476 (7) | |
H10A | 0.8864 | 0.6808 | 0.8832 | 0.071* | |
H10B | 0.9271 | 0.7515 | 0.8166 | 0.071* | |
H10C | 1.0741 | 0.6666 | 0.8518 | 0.071* | |
C11A | 0.6132 (6) | −0.0035 (3) | 0.91371 (15) | 0.0679 (11) | |
H11A | 0.5281 | 0.0117 | 0.9474 | 0.081* | |
H11B | 0.7177 | −0.0439 | 0.9338 | 0.081* | |
C12A | 0.5152 (5) | −0.1188 (3) | 0.85797 (16) | 0.0609 (9) | |
H12A | 0.6030 | −0.1424 | 0.8271 | 0.091* | |
H12B | 0.4188 | −0.0745 | 0.8358 | 0.091* | |
H12C | 0.4596 | −0.2149 | 0.8745 | 0.091* | |
S1B | 0.27526 (9) | 0.11629 (8) | 0.50079 (3) | 0.03846 (17) | |
O1B | 0.0388 (3) | −0.00478 (19) | 0.22569 (9) | 0.0442 (5) | |
H1B | 0.0632 | −0.0032 | 0.2661 | 0.066* | |
N1B | 0.3440 (3) | 0.0524 (2) | 0.37797 (9) | 0.0328 (4) | |
H1BA | 0.3114 | 0.0004 | 0.3388 | 0.039* | |
N2B | 0.0643 (3) | −0.0663 (2) | 0.40373 (9) | 0.0322 (4) | |
H2B | −0.0052 | −0.1076 | 0.4323 | 0.039* | |
N3B | 0.0112 (3) | −0.0985 (2) | 0.33722 (9) | 0.0297 (4) | |
C1B | 0.2276 (3) | 0.0313 (2) | 0.42314 (11) | 0.0302 (4) | |
C2B | −0.1110 (3) | −0.2211 (2) | 0.31448 (11) | 0.0275 (4) | |
C3B | −0.1631 (3) | −0.2420 (2) | 0.24375 (10) | 0.0269 (4) | |
C4B | −0.0889 (3) | −0.1338 (2) | 0.20249 (11) | 0.0304 (4) | |
C5B | −0.1424 (3) | −0.1555 (3) | 0.13613 (12) | 0.0335 (5) | |
H5B | −0.0930 | −0.0789 | 0.1099 | 0.040* | |
C6B | −0.2666 (3) | −0.2867 (3) | 0.10702 (12) | 0.0341 (5) | |
C7B | −0.3400 (3) | −0.3951 (3) | 0.14698 (13) | 0.0383 (5) | |
H7B | −0.4254 | −0.4858 | 0.1282 | 0.046* | |
C8B | −0.2904 (3) | −0.3726 (3) | 0.21335 (12) | 0.0350 (5) | |
H8B | −0.3441 | −0.4479 | 0.2394 | 0.042* | |
C9B | −0.3194 (4) | −0.3111 (3) | 0.03475 (12) | 0.0442 (6) | |
H9BA | −0.4496 | −0.3057 | 0.0261 | 0.066* | |
H9BB | −0.2987 | −0.4138 | 0.0166 | 0.066* | |
H9BC | −0.2443 | −0.2298 | 0.0143 | 0.066* | |
C10B | −0.1944 (3) | −0.3386 (3) | 0.35613 (12) | 0.0354 (5) | |
H10D | −0.3220 | −0.3281 | 0.3611 | 0.053* | |
H10E | −0.1241 | −0.3208 | 0.3992 | 0.053* | |
H10F | −0.1918 | −0.4440 | 0.3354 | 0.053* | |
C11B | 0.5237 (4) | 0.1568 (3) | 0.38931 (12) | 0.0419 (6) | |
H11C | 0.6026 | 0.1200 | 0.4227 | 0.050* | |
H11D | 0.5078 | 0.2634 | 0.4058 | 0.050* | |
C12B | 0.6130 (6) | 0.1606 (6) | 0.32810 (19) | 0.0867 (14) | |
H12D | 0.5308 | 0.1899 | 0.2942 | 0.130* | |
H12E | 0.6394 | 0.0572 | 0.3141 | 0.130* | |
H12F | 0.7281 | 0.2373 | 0.3354 | 0.130* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1A | 0.0474 (4) | 0.0438 (3) | 0.0272 (3) | −0.0004 (3) | 0.0005 (2) | 0.0092 (2) |
O1A | 0.0507 (10) | 0.0243 (7) | 0.0290 (8) | −0.0091 (7) | 0.0076 (7) | −0.0001 (6) |
N1A | 0.0690 (15) | 0.0318 (10) | 0.0271 (10) | −0.0068 (10) | 0.0037 (9) | 0.0063 (8) |
N2A | 0.0386 (10) | 0.0245 (8) | 0.0234 (8) | 0.0036 (7) | 0.0032 (7) | 0.0019 (6) |
N3A | 0.0328 (9) | 0.0235 (8) | 0.0227 (8) | 0.0047 (7) | 0.0042 (6) | 0.0019 (6) |
C1A | 0.0380 (11) | 0.0282 (10) | 0.0264 (10) | 0.0050 (9) | 0.0067 (8) | 0.0042 (8) |
C2A | 0.0319 (10) | 0.0189 (8) | 0.0275 (10) | 0.0053 (8) | −0.0001 (8) | 0.0018 (7) |
C3A | 0.0279 (9) | 0.0185 (8) | 0.0256 (9) | 0.0031 (7) | 0.0001 (7) | 0.0013 (7) |
C4A | 0.0266 (9) | 0.0202 (8) | 0.0280 (10) | 0.0015 (7) | 0.0041 (7) | 0.0018 (7) |
C5A | 0.0297 (10) | 0.0253 (9) | 0.0286 (10) | 0.0019 (8) | 0.0005 (8) | −0.0024 (7) |
C6A | 0.0342 (10) | 0.0287 (10) | 0.0254 (10) | 0.0069 (9) | −0.0004 (8) | 0.0025 (7) |
C7A | 0.0439 (12) | 0.0249 (9) | 0.0294 (11) | 0.0014 (9) | −0.0008 (9) | 0.0075 (8) |
C8A | 0.0395 (11) | 0.0195 (8) | 0.0307 (11) | 0.0017 (8) | −0.0022 (8) | 0.0030 (7) |
C9A | 0.0560 (16) | 0.0437 (13) | 0.0259 (11) | 0.0024 (12) | −0.0011 (10) | 0.0030 (9) |
C10A | 0.080 (2) | 0.0258 (11) | 0.0280 (12) | −0.0066 (12) | −0.0112 (12) | 0.0026 (8) |
C11A | 0.120 (3) | 0.0359 (14) | 0.0379 (15) | −0.0174 (17) | 0.0104 (17) | 0.0114 (11) |
C12A | 0.079 (2) | 0.0331 (13) | 0.062 (2) | −0.0119 (15) | 0.0111 (16) | 0.0024 (12) |
S1B | 0.0403 (3) | 0.0435 (3) | 0.0269 (3) | −0.0003 (3) | 0.0034 (2) | −0.0028 (2) |
O1B | 0.0627 (12) | 0.0257 (8) | 0.0350 (9) | −0.0126 (8) | −0.0058 (8) | 0.0044 (6) |
N1B | 0.0359 (9) | 0.0302 (9) | 0.0274 (9) | −0.0044 (8) | 0.0045 (7) | −0.0021 (7) |
N2B | 0.0342 (9) | 0.0326 (9) | 0.0271 (9) | −0.0002 (8) | 0.0056 (7) | 0.0000 (7) |
N3B | 0.0313 (9) | 0.0275 (8) | 0.0281 (9) | 0.0017 (7) | 0.0014 (7) | 0.0000 (7) |
C1B | 0.0345 (10) | 0.0262 (9) | 0.0280 (10) | 0.0023 (9) | 0.0004 (8) | 0.0019 (8) |
C2B | 0.0271 (9) | 0.0222 (9) | 0.0329 (11) | 0.0047 (8) | 0.0058 (8) | 0.0007 (7) |
C3B | 0.0263 (9) | 0.0211 (9) | 0.0325 (11) | 0.0043 (8) | 0.0027 (8) | 0.0000 (7) |
C4B | 0.0345 (11) | 0.0198 (9) | 0.0351 (11) | 0.0035 (8) | 0.0003 (8) | 0.0011 (8) |
C5B | 0.0361 (11) | 0.0277 (10) | 0.0364 (12) | 0.0070 (9) | 0.0002 (9) | 0.0039 (8) |
C6B | 0.0327 (11) | 0.0321 (11) | 0.0370 (12) | 0.0104 (9) | −0.0016 (9) | −0.0015 (9) |
C7B | 0.0328 (11) | 0.0312 (11) | 0.0442 (14) | −0.0034 (9) | −0.0032 (9) | −0.0046 (9) |
C8B | 0.0331 (11) | 0.0274 (10) | 0.0412 (13) | −0.0019 (9) | 0.0038 (9) | 0.0014 (9) |
C9B | 0.0433 (13) | 0.0496 (15) | 0.0361 (13) | 0.0088 (12) | −0.0071 (10) | −0.0032 (11) |
C10B | 0.0385 (12) | 0.0301 (11) | 0.0359 (12) | −0.0005 (9) | 0.0085 (9) | 0.0042 (9) |
C11B | 0.0397 (12) | 0.0426 (13) | 0.0351 (13) | −0.0111 (11) | 0.0015 (10) | 0.0010 (10) |
C12B | 0.067 (2) | 0.104 (3) | 0.067 (2) | −0.037 (2) | 0.0288 (18) | −0.016 (2) |
S1A—C1A | 1.669 (2) | S1B—C1B | 1.681 (2) |
O1A—H1A | 0.8400 | O1B—H1B | 0.8400 |
O1A—C4A | 1.357 (2) | O1B—C4B | 1.358 (3) |
N1A—H1AA | 0.8800 | N1B—H1BA | 0.8800 |
N1A—C1A | 1.330 (3) | N1B—C1B | 1.327 (3) |
N1A—C11A | 1.459 (3) | N1B—C11B | 1.465 (3) |
N2A—H2A | 0.8800 | N2B—H2B | 0.8800 |
N2A—N3A | 1.379 (2) | N2B—N3B | 1.387 (3) |
N2A—C1A | 1.359 (3) | N2B—C1B | 1.360 (3) |
N3A—C2A | 1.290 (3) | N3B—C2B | 1.297 (3) |
C2A—C3A | 1.474 (3) | C2B—C3B | 1.469 (3) |
C2A—C10A | 1.496 (3) | C2B—C10B | 1.497 (3) |
C3A—C4A | 1.412 (3) | C3B—C4B | 1.414 (3) |
C3A—C8A | 1.406 (3) | C3B—C8B | 1.404 (3) |
C4A—C5A | 1.386 (3) | C4B—C5B | 1.384 (3) |
C5A—H5A | 0.9500 | C5B—H5B | 0.9500 |
C5A—C6A | 1.389 (3) | C5B—C6B | 1.388 (3) |
C6A—C7A | 1.390 (3) | C6B—C7B | 1.394 (3) |
C6A—C9A | 1.501 (3) | C6B—C9B | 1.500 (3) |
C7A—H7A | 0.9500 | C7B—H7B | 0.9500 |
C7A—C8A | 1.383 (3) | C7B—C8B | 1.379 (3) |
C8A—H8A | 0.9500 | C8B—H8B | 0.9500 |
C9A—H9AA | 0.9800 | C9B—H9BA | 0.9800 |
C9A—H9AB | 0.9800 | C9B—H9BB | 0.9800 |
C9A—H9AC | 0.9800 | C9B—H9BC | 0.9800 |
C10A—H10A | 0.9800 | C10B—H10D | 0.9800 |
C10A—H10B | 0.9800 | C10B—H10E | 0.9800 |
C10A—H10C | 0.9800 | C10B—H10F | 0.9800 |
C11A—H11A | 0.9900 | C11B—H11C | 0.9900 |
C11A—H11B | 0.9900 | C11B—H11D | 0.9900 |
C11A—C12A | 1.497 (4) | C11B—C12B | 1.476 (4) |
C12A—H12A | 0.9800 | C12B—H12D | 0.9800 |
C12A—H12B | 0.9800 | C12B—H12E | 0.9800 |
C12A—H12C | 0.9800 | C12B—H12F | 0.9800 |
C4A—O1A—H1A | 109.5 | C4B—O1B—H1B | 109.5 |
C1A—N1A—H1AA | 118.1 | C1B—N1B—H1BA | 118.0 |
C1A—N1A—C11A | 123.7 (2) | C1B—N1B—C11B | 124.01 (19) |
C11A—N1A—H1AA | 118.1 | C11B—N1B—H1BA | 118.0 |
N3A—N2A—H2A | 120.1 | N3B—N2B—H2B | 121.2 |
C1A—N2A—H2A | 120.1 | C1B—N2B—H2B | 121.2 |
C1A—N2A—N3A | 119.78 (17) | C1B—N2B—N3B | 117.55 (18) |
C2A—N3A—N2A | 119.35 (17) | C2B—N3B—N2B | 120.16 (18) |
N1A—C1A—S1A | 123.78 (17) | N1B—C1B—S1B | 123.27 (17) |
N1A—C1A—N2A | 116.28 (19) | N1B—C1B—N2B | 116.29 (19) |
N2A—C1A—S1A | 119.91 (16) | N2B—C1B—S1B | 120.44 (17) |
N3A—C2A—C3A | 117.47 (17) | N3B—C2B—C3B | 116.11 (18) |
N3A—C2A—C10A | 122.20 (19) | N3B—C2B—C10B | 123.4 (2) |
C3A—C2A—C10A | 120.34 (18) | C3B—C2B—C10B | 120.51 (18) |
C4A—C3A—C2A | 122.63 (17) | C4B—C3B—C2B | 122.56 (18) |
C8A—C3A—C2A | 120.90 (17) | C8B—C3B—C2B | 121.23 (19) |
C8A—C3A—C4A | 116.43 (18) | C8B—C3B—C4B | 116.2 (2) |
O1A—C4A—C3A | 122.03 (18) | O1B—C4B—C3B | 121.90 (19) |
O1A—C4A—C5A | 116.98 (17) | O1B—C4B—C5B | 116.80 (19) |
C5A—C4A—C3A | 121.00 (18) | C5B—C4B—C3B | 121.29 (19) |
C4A—C5A—H5A | 119.3 | C4B—C5B—H5B | 119.3 |
C4A—C5A—C6A | 121.46 (19) | C4B—C5B—C6B | 121.4 (2) |
C6A—C5A—H5A | 119.3 | C6B—C5B—H5B | 119.3 |
C5A—C6A—C7A | 118.27 (19) | C5B—C6B—C7B | 118.0 (2) |
C5A—C6A—C9A | 119.8 (2) | C5B—C6B—C9B | 120.9 (2) |
C7A—C6A—C9A | 121.9 (2) | C7B—C6B—C9B | 121.1 (2) |
C6A—C7A—H7A | 119.7 | C6B—C7B—H7B | 119.5 |
C8A—C7A—C6A | 120.64 (19) | C8B—C7B—C6B | 120.9 (2) |
C8A—C7A—H7A | 119.7 | C8B—C7B—H7B | 119.5 |
C3A—C8A—H8A | 118.9 | C3B—C8B—H8B | 118.9 |
C7A—C8A—C3A | 122.15 (19) | C7B—C8B—C3B | 122.2 (2) |
C7A—C8A—H8A | 118.9 | C7B—C8B—H8B | 118.9 |
C6A—C9A—H9AA | 109.5 | C6B—C9B—H9BA | 109.5 |
C6A—C9A—H9AB | 109.5 | C6B—C9B—H9BB | 109.5 |
C6A—C9A—H9AC | 109.5 | C6B—C9B—H9BC | 109.5 |
H9AA—C9A—H9AB | 109.5 | H9BA—C9B—H9BB | 109.5 |
H9AA—C9A—H9AC | 109.5 | H9BA—C9B—H9BC | 109.5 |
H9AB—C9A—H9AC | 109.5 | H9BB—C9B—H9BC | 109.5 |
C2A—C10A—H10A | 109.5 | C2B—C10B—H10D | 109.5 |
C2A—C10A—H10B | 109.5 | C2B—C10B—H10E | 109.5 |
C2A—C10A—H10C | 109.5 | C2B—C10B—H10F | 109.5 |
H10A—C10A—H10B | 109.5 | H10D—C10B—H10E | 109.5 |
H10A—C10A—H10C | 109.5 | H10D—C10B—H10F | 109.5 |
H10B—C10A—H10C | 109.5 | H10E—C10B—H10F | 109.5 |
N1A—C11A—H11A | 109.7 | N1B—C11B—H11C | 109.6 |
N1A—C11A—H11B | 109.7 | N1B—C11B—H11D | 109.6 |
N1A—C11A—C12A | 109.8 (2) | N1B—C11B—C12B | 110.2 (2) |
H11A—C11A—H11B | 108.2 | H11C—C11B—H11D | 108.1 |
C12A—C11A—H11A | 109.7 | C12B—C11B—H11C | 109.6 |
C12A—C11A—H11B | 109.7 | C12B—C11B—H11D | 109.6 |
C11A—C12A—H12A | 109.5 | C11B—C12B—H12D | 109.5 |
C11A—C12A—H12B | 109.5 | C11B—C12B—H12E | 109.5 |
C11A—C12A—H12C | 109.5 | C11B—C12B—H12F | 109.5 |
H12A—C12A—H12B | 109.5 | H12D—C12B—H12E | 109.5 |
H12A—C12A—H12C | 109.5 | H12D—C12B—H12F | 109.5 |
H12B—C12A—H12C | 109.5 | H12E—C12B—H12F | 109.5 |
O1A—C4A—C5A—C6A | −177.9 (2) | O1B—C4B—C5B—C6B | 177.4 (2) |
N2A—N3A—C2A—C3A | 178.30 (17) | N2B—N3B—C2B—C3B | 177.79 (18) |
N2A—N3A—C2A—C10A | −1.6 (3) | N2B—N3B—C2B—C10B | −3.3 (3) |
N3A—N2A—C1A—S1A | 175.07 (16) | N3B—N2B—C1B—S1B | 162.66 (16) |
N3A—N2A—C1A—N1A | −6.7 (3) | N3B—N2B—C1B—N1B | −18.2 (3) |
N3A—C2A—C3A—C4A | 4.4 (3) | N3B—C2B—C3B—C4B | −1.4 (3) |
N3A—C2A—C3A—C8A | −173.1 (2) | N3B—C2B—C3B—C8B | 178.3 (2) |
C1A—N1A—C11A—C12A | −177.2 (3) | C1B—N1B—C11B—C12B | −176.4 (3) |
C1A—N2A—N3A—C2A | −179.6 (2) | C1B—N2B—N3B—C2B | 160.1 (2) |
C2A—C3A—C4A—O1A | 1.3 (3) | C2B—C3B—C4B—O1B | 1.3 (3) |
C2A—C3A—C4A—C5A | −179.14 (19) | C2B—C3B—C4B—C5B | −179.1 (2) |
C2A—C3A—C8A—C7A | 177.6 (2) | C2B—C3B—C8B—C7B | −179.4 (2) |
C3A—C4A—C5A—C6A | 2.6 (3) | C3B—C4B—C5B—C6B | −2.1 (3) |
C4A—C3A—C8A—C7A | 0.0 (3) | C4B—C3B—C8B—C7B | 0.3 (3) |
C4A—C5A—C6A—C7A | −2.0 (3) | C4B—C5B—C6B—C7B | 1.5 (3) |
C4A—C5A—C6A—C9A | 176.5 (2) | C4B—C5B—C6B—C9B | −178.2 (2) |
C5A—C6A—C7A—C8A | 0.4 (4) | C5B—C6B—C7B—C8B | −0.1 (4) |
C6A—C7A—C8A—C3A | 0.6 (4) | C6B—C7B—C8B—C3B | −0.8 (4) |
C8A—C3A—C4A—O1A | 178.9 (2) | C8B—C3B—C4B—O1B | −178.4 (2) |
C8A—C3A—C4A—C5A | −1.5 (3) | C8B—C3B—C4B—C5B | 1.1 (3) |
C9A—C6A—C7A—C8A | −178.0 (2) | C9B—C6B—C7B—C8B | 179.7 (2) |
C10A—C2A—C3A—C4A | −175.7 (2) | C10B—C2B—C3B—C4B | 179.7 (2) |
C10A—C2A—C3A—C8A | 6.8 (3) | C10B—C2B—C3B—C8B | −0.6 (3) |
C11A—N1A—C1A—S1A | −2.5 (4) | C11B—N1B—C1B—S1B | −2.9 (3) |
C11A—N1A—C1A—N2A | 179.4 (3) | C11B—N1B—C1B—N2B | 178.0 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1A—H1A···N3A | 0.84 | 1.85 | 2.589 (2) | 146 |
C10A—H10B···O1Bi | 0.98 | 2.45 | 3.406 (3) | 164 |
O1B—H1B···N3B | 0.84 | 1.81 | 2.545 (2) | 146 |
N1B—H1BA···O1Aii | 0.88 | 2.36 | 3.076 (2) | 139 |
N2B—H2B···S1Biii | 0.88 | 2.52 | 3.320 (2) | 152 |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) −x+1, −y, −z+1; (iii) −x, −y, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1A—H1A···N3A | 0.84 | 1.85 | 2.589 (2) | 146 |
C10A—H10B···O1Bi | 0.98 | 2.45 | 3.406 (3) | 164 |
O1B—H1B···N3B | 0.84 | 1.81 | 2.545 (2) | 146 |
N1B—H1BA···O1Aii | 0.88 | 2.36 | 3.076 (2) | 139 |
N2B—H2B···S1Biii | 0.88 | 2.52 | 3.320 (2) | 152 |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) −x+1, −y, −z+1; (iii) −x, −y, −z+1. |
Acknowledgements
JPJ acknowledges the NSF–MRI program (grant No. CHE-1039027) for funds to purchase the X-ray diffractometer.
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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 are a versatile class of ligands that have been studied for their biological activity (Chellan et al., 2010), interesting binding motifs (Lobana et al., 2009), and their use as ligands in catalysis (Xie et al., 2010). We have previously reported the structure of three similar novel thiosemicarbazones (Anderson et al., 2012; Anderson et al., 2013a; Anderson et al., 2013b). Here, we report the synthesis and crystal structure of a new novel thiosemicarbazone ligand, (I), C12H17N3OS.
The title compound, (I), crystallizes with two independent molecules (A & B) in the asymmetric unit (Fig. 1). The dihedral angles between the mean planes of the benzene ring and the hydrazinecarbothioamide group is 6.9 (4)° (N3A/N2A/C1A/S1A/N1A) and 37.2 (5)° (N3B/N2B/C1B/S1B/N1B). An intramolecular O—H···N hydrogen bond is observed serving to maintain an approximately planar conformation in A. However in B there is a significant twist between these two groups. In the crystal, a weak N2B—H2B···S1B intermolecular interaction is observed forming inversion dimers among the B molecules in an R22[8] motif format (Fig. 2). These dimers are further interconnected by weak N1B—H1BA···O1A and C10A—HH10B···O1B intermolecular interactions (Table 1) forming polymeric chains along [011].