organic compounds
of 4-cyclohexyl-1-(propan-2-ylidene)thiosemicarbazide
aSchool of Chemical Sciences and Food Technology, Faculty of Resource Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi Selangor, Malaysia, and bDepartment of Chemistry, Faculty of Resource Science and Technology, Universiti Malaysia Sarawak, 94300 Kota Samarahan Serawak, Malaysia
*Correspondence e-mail: dnorafizan@frst.unimas.my
In the title compound, C10H19N3S, the cyclohexyl group adopts a chair conformation and adopts a position approximately syn to the thione S atom. The CN2S thiourea moiety makes dihedral angle of 13.13 (10)° with the propan-2-ylideneamino group. An intramolecular N—H⋯N hydrogen bond is noted. In the crystal, inversion dimers linked by pairs of N—H⋯S hydrogen bonds generate R22(8) loops.
CCDC reference: 1023476
1. Related literature
For the applications and biological activity of thiosemicarbazide derivatives, see: Brokl et al. (1974), Jiang et al. (2006). For the crystal structures of related compounds, see: Affan et al. (2011); Miroslaw et al. (2011).
2. Experimental
2.1. Crystal data
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2.3. Refinement
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Data collection: SMART (Bruker, 2000); cell SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009).
Supporting information
CCDC reference: 1023476
10.1107/S160053681402025X/tk5341sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S160053681402025X/tk5341Isup2.hkl
Supporting information file. DOI: 10.1107/S160053681402025X/tk5341Isup3.cml
A mixture of 4-cyclohexylthiosemicarbazide (0.174 g, 1 mmol), KOH (0.112 g, 0.05 mmol) and diphenyltin(IV) chloride (0.344 g, 1 mmol) in methanol was heated under reflux for 4–5 h. The reaction mixture was allowed to cool to room temperature for 1 h. The white precipitate formed was filtered and washed with acetone. Crystals suitable for X-ray study were obtained by recrystallization from acetone (0.240 g, 42% yield). M.pt = 390–393 K. IR (KBr): vNH-cyclohexyl (3336), vS=C—NH (3221), vcyclohexyl (2929,2850), vC=N (1527), vC=S (1263,881), vN—N (1106) cm-1. All the chemicals were purchased from Sigma Aldrich (Germany).
Non-methine C-bound H atoms were positioned geometrically with C—H = 0.96–0.97 Å, and with Uiso(H)= 1.2–1.5Ueq(C). The N-bound H atoms were positioned geometrically with N—H = 0.86 Å, and with Uiso(H)= 1.2Ueq(N). The methine-bound H atom was located from a Fourier map and refined isotropically. A rotating model was applied in the
of the methyl hydrogen atoms.Data collection: SMART (Bruker, 2000); cell
SAINT (Bruker, 2000); data reduction: SAINT (Bruker, 2000); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).C10H19N3S | F(000) = 928 |
Mr = 213.34 | Dx = 1.159 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 7621 reflections |
a = 13.6668 (10) Å | θ = 2.9–28.3° |
b = 8.3356 (5) Å | µ = 0.24 mm−1 |
c = 21.4683 (16) Å | T = 301 K |
V = 2445.7 (3) Å3 | Block, yellow |
Z = 8 | 0.50 × 0.19 × 0.19 mm |
Bruker SMART APEX CCD area-detector diffractometer | 3028 independent reflections |
Radiation source: fine-focus sealed tube | 2051 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.061 |
Detector resolution: 83.66 pixels mm-1 | θmax = 28.3°, θmin = 2.9° |
ω scan | h = −18→16 |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | k = −11→10 |
Tmin = 0.892, Tmax = 0.957 | l = −28→27 |
31768 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)] = 0.053 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.135 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0583P)2 + 0.9515P] where P = (Fo2 + 2Fc2)/3 |
3028 reflections | (Δ/σ)max = 0.001 |
133 parameters | Δρmax = 0.25 e Å−3 |
0 restraints | Δρmin = −0.30 e Å−3 |
C10H19N3S | V = 2445.7 (3) Å3 |
Mr = 213.34 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 13.6668 (10) Å | µ = 0.24 mm−1 |
b = 8.3356 (5) Å | T = 301 K |
c = 21.4683 (16) Å | 0.50 × 0.19 × 0.19 mm |
Bruker SMART APEX CCD area-detector diffractometer | 3028 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | 2051 reflections with I > 2σ(I) |
Tmin = 0.892, Tmax = 0.957 | Rint = 0.061 |
31768 measured reflections |
R[F2 > 2σ(F2)] = 0.053 | 0 restraints |
wR(F2) = 0.135 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.04 | Δρmax = 0.25 e Å−3 |
3028 reflections | Δρmin = −0.30 e Å−3 |
133 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. |
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 | 0.59037 (4) | 0.01795 (7) | 0.41721 (3) | 0.0582 (2) | |
N1 | 0.51795 (12) | 0.26158 (19) | 0.35150 (7) | 0.0477 (4) | |
H1D | 0.4748 | 0.3363 | 0.3483 | 0.057* | |
N2 | 0.46292 (11) | 0.23807 (19) | 0.45107 (7) | 0.0447 (4) | |
H2C | 0.4630 | 0.1942 | 0.4873 | 0.054* | |
N3 | 0.40374 (11) | 0.36924 (19) | 0.43836 (7) | 0.0462 (4) | |
C1 | 0.67225 (14) | 0.3396 (2) | 0.30141 (9) | 0.0489 (5) | |
H1A | 0.7093 | 0.3119 | 0.3384 | 0.059* | |
H1B | 0.6530 | 0.4513 | 0.3048 | 0.059* | |
C2 | 0.73660 (16) | 0.3179 (3) | 0.24406 (11) | 0.0580 (6) | |
H2A | 0.7914 | 0.3916 | 0.2463 | 0.070* | |
H2B | 0.7625 | 0.2096 | 0.2436 | 0.070* | |
C3 | 0.68044 (18) | 0.3477 (3) | 0.18483 (10) | 0.0623 (6) | |
H3A | 0.7223 | 0.3261 | 0.1493 | 0.075* | |
H3B | 0.6609 | 0.4595 | 0.1830 | 0.075* | |
C4 | 0.59057 (17) | 0.2423 (3) | 0.18135 (10) | 0.0589 (6) | |
H4A | 0.6104 | 0.1308 | 0.1786 | 0.071* | |
H4B | 0.5538 | 0.2682 | 0.1440 | 0.071* | |
C5 | 0.52547 (14) | 0.2654 (3) | 0.23839 (9) | 0.0488 (5) | |
H5A | 0.5001 | 0.3741 | 0.2387 | 0.059* | |
H5B | 0.4704 | 0.1923 | 0.2361 | 0.059* | |
C6 | 0.58140 (13) | 0.2352 (2) | 0.29786 (8) | 0.0393 (4) | |
H1C | 0.6010 (13) | 0.123 (2) | 0.2991 (8) | 0.041 (5)* | |
C7 | 0.52063 (13) | 0.1809 (2) | 0.40478 (8) | 0.0387 (4) | |
C8 | 0.36147 (14) | 0.4386 (2) | 0.48408 (9) | 0.0426 (4) | |
C9 | 0.29760 (19) | 0.5788 (3) | 0.46846 (11) | 0.0714 (7) | |
H9A | 0.2964 | 0.5937 | 0.4241 | 0.107* | |
H9B | 0.3231 | 0.6736 | 0.4880 | 0.107* | |
H9C | 0.2324 | 0.5591 | 0.4832 | 0.107* | |
C10 | 0.36946 (17) | 0.3939 (3) | 0.55073 (9) | 0.0549 (5) | |
H10A | 0.4361 | 0.3671 | 0.5602 | 0.082* | |
H10B | 0.3283 | 0.3030 | 0.5590 | 0.082* | |
H10C | 0.3491 | 0.4825 | 0.5761 | 0.082* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0625 (4) | 0.0585 (3) | 0.0536 (3) | 0.0258 (3) | 0.0105 (3) | 0.0124 (2) |
N1 | 0.0531 (9) | 0.0453 (9) | 0.0446 (9) | 0.0189 (7) | 0.0155 (8) | 0.0074 (7) |
N2 | 0.0499 (9) | 0.0451 (9) | 0.0391 (9) | 0.0104 (7) | 0.0105 (7) | 0.0057 (7) |
N3 | 0.0469 (9) | 0.0448 (9) | 0.0468 (9) | 0.0105 (7) | 0.0142 (7) | 0.0068 (7) |
C1 | 0.0468 (11) | 0.0532 (11) | 0.0467 (11) | 0.0001 (9) | −0.0012 (9) | −0.0088 (9) |
C2 | 0.0457 (11) | 0.0557 (12) | 0.0725 (15) | −0.0087 (10) | 0.0167 (11) | −0.0103 (11) |
C3 | 0.0777 (15) | 0.0583 (13) | 0.0509 (13) | −0.0037 (11) | 0.0270 (12) | −0.0024 (10) |
C4 | 0.0682 (14) | 0.0682 (14) | 0.0403 (11) | 0.0013 (11) | −0.0001 (10) | −0.0082 (10) |
C5 | 0.0443 (11) | 0.0535 (11) | 0.0486 (12) | 0.0024 (9) | 0.0008 (9) | −0.0040 (9) |
C6 | 0.0428 (10) | 0.0348 (9) | 0.0403 (10) | 0.0084 (8) | 0.0083 (8) | −0.0016 (7) |
C7 | 0.0358 (9) | 0.0391 (9) | 0.0410 (10) | 0.0015 (7) | 0.0050 (8) | −0.0017 (8) |
C8 | 0.0429 (10) | 0.0390 (9) | 0.0460 (11) | 0.0000 (8) | 0.0128 (8) | 0.0011 (8) |
C9 | 0.0828 (16) | 0.0633 (14) | 0.0682 (15) | 0.0310 (13) | 0.0326 (13) | 0.0157 (12) |
C10 | 0.0661 (13) | 0.0528 (11) | 0.0458 (12) | 0.0046 (11) | 0.0055 (10) | −0.0092 (9) |
S1—C7 | 1.6803 (18) | C3—H3B | 0.9700 |
N1—C7 | 1.328 (2) | C4—C5 | 1.526 (3) |
N1—C6 | 1.458 (2) | C4—H4A | 0.9700 |
N1—H1D | 0.8600 | C4—H4B | 0.9700 |
N2—C7 | 1.355 (2) | C5—C6 | 1.509 (3) |
N2—N3 | 1.387 (2) | C5—H5A | 0.9700 |
N2—H2C | 0.8600 | C5—H5B | 0.9700 |
N3—C8 | 1.277 (2) | C6—H1C | 0.973 (19) |
C1—C6 | 1.518 (3) | C8—C10 | 1.483 (3) |
C1—C2 | 1.524 (3) | C8—C9 | 1.497 (3) |
C1—H1A | 0.9700 | C9—H9A | 0.9600 |
C1—H1B | 0.9700 | C9—H9B | 0.9600 |
C2—C3 | 1.506 (3) | C9—H9C | 0.9600 |
C2—H2A | 0.9700 | C10—H10A | 0.9600 |
C2—H2B | 0.9700 | C10—H10B | 0.9600 |
C3—C4 | 1.512 (3) | C10—H10C | 0.9600 |
C3—H3A | 0.9700 | ||
C7—N1—C6 | 125.98 (15) | C6—C5—C4 | 111.24 (16) |
C7—N1—H1D | 117.0 | C6—C5—H5A | 109.4 |
C6—N1—H1D | 117.0 | C4—C5—H5A | 109.4 |
C7—N2—N3 | 118.20 (15) | C6—C5—H5B | 109.4 |
C7—N2—H2C | 120.9 | C4—C5—H5B | 109.4 |
N3—N2—H2C | 120.9 | H5A—C5—H5B | 108.0 |
C8—N3—N2 | 118.00 (16) | N1—C6—C5 | 109.97 (14) |
C6—C1—C2 | 111.30 (16) | N1—C6—C1 | 111.11 (15) |
C6—C1—H1A | 109.4 | C5—C6—C1 | 111.16 (16) |
C2—C1—H1A | 109.4 | N1—C6—H1C | 106.7 (11) |
C6—C1—H1B | 109.4 | C5—C6—H1C | 108.9 (11) |
C2—C1—H1B | 109.4 | C1—C6—H1C | 108.9 (11) |
H1A—C1—H1B | 108.0 | N1—C7—N2 | 115.93 (16) |
C3—C2—C1 | 111.62 (18) | N1—C7—S1 | 124.19 (14) |
C3—C2—H2A | 109.3 | N2—C7—S1 | 119.87 (14) |
C1—C2—H2A | 109.3 | N3—C8—C10 | 126.46 (18) |
C3—C2—H2B | 109.3 | N3—C8—C9 | 116.44 (18) |
C1—C2—H2B | 109.3 | C10—C8—C9 | 117.10 (17) |
H2A—C2—H2B | 108.0 | C8—C9—H9A | 109.5 |
C2—C3—C4 | 111.10 (18) | C8—C9—H9B | 109.5 |
C2—C3—H3A | 109.4 | H9A—C9—H9B | 109.5 |
C4—C3—H3A | 109.4 | C8—C9—H9C | 109.5 |
C2—C3—H3B | 109.4 | H9A—C9—H9C | 109.5 |
C4—C3—H3B | 109.4 | H9B—C9—H9C | 109.5 |
H3A—C3—H3B | 108.0 | C8—C10—H10A | 109.5 |
C3—C4—C5 | 111.13 (17) | C8—C10—H10B | 109.5 |
C3—C4—H4A | 109.4 | H10A—C10—H10B | 109.5 |
C5—C4—H4A | 109.4 | C8—C10—H10C | 109.5 |
C3—C4—H4B | 109.4 | H10A—C10—H10C | 109.5 |
C5—C4—H4B | 109.4 | H10B—C10—H10C | 109.5 |
H4A—C4—H4B | 108.0 | ||
C7—N2—N3—C8 | −169.08 (17) | C2—C1—C6—N1 | −177.51 (16) |
C6—C1—C2—C3 | 54.9 (2) | C2—C1—C6—C5 | −54.7 (2) |
C1—C2—C3—C4 | −55.4 (2) | C6—N1—C7—N2 | 172.31 (17) |
C2—C3—C4—C5 | 55.8 (2) | C6—N1—C7—S1 | −7.2 (3) |
C3—C4—C5—C6 | −55.9 (2) | N3—N2—C7—N1 | 2.8 (2) |
C7—N1—C6—C5 | 145.50 (19) | N3—N2—C7—S1 | −177.70 (13) |
C7—N1—C6—C1 | −91.0 (2) | N2—N3—C8—C10 | 0.4 (3) |
C4—C5—C6—N1 | 178.77 (16) | N2—N3—C8—C9 | −179.53 (18) |
C4—C5—C6—C1 | 55.3 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1D···N3 | 0.86 | 2.18 | 2.592 (2) | 109 |
C6—H1C···S1 | 0.97 (3) | 2.69 (2) | 3.142 (2) | 108.9 (12) |
C10—H10A···N2 | 0.96 | 2.40 | 2.811 (3) | 106 |
N2—H2C···S1i | 0.86 | 2.80 | 3.6170 (18) | 158 |
Symmetry code: (i) −x+1, −y, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1D···N3 | 0.86 | 2.18 | 2.592 (2) | 109 |
N2—H2C···S1i | 0.86 | 2.80 | 3.6170 (18) | 158 |
Symmetry code: (i) −x+1, −y, −z+1. |
Acknowledgements
The authors thank the Ministry of Science, Technology and Innovation (MOSTI), for a research grant [RAGS/ST01(1)/1040/2013 (07)] and to The Centre of Instrumentation (CRIM), Universiti Kebangsaan Malaysia, for use of the X-ray crystallographic facility.
References
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