organic compounds
(2E)-2-[2-(Cyclohexylcarbamothioyl)hydrazinylidene]propanoic acid
aFaculty of Resource Science and Technology, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia, and bDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
*Correspondence e-mail: edward.tiekink@gmail.com
In the title thiourea derivative, C10H17N3O2S, the carboxyl group and the least-squares plane through the cyclohexyl ring are twisted out of the plane through the central CN3S residue; the respective dihedral angles are 7.18 (8) and 62.29 (4)°. The conformation about the azomethine bond [1.275 (2) Å] is E. The NH groups are anti, with one forming an intramolecular N—H⋯N hydrogen bond. The main feature of the is the formation of linear supramolecular chains along [110] mediated by alternating pairs of O—H⋯O and pairs of N—H⋯S hydrogen bonds.
Related literature
For related thiourea structures, see: Normaya et al. (2011); Salam et al. (2011).
Experimental
Crystal data
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Refinement
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Data collection: CrysAlis PRO (Agilent, 2010); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
10.1107/S1600536811014449/hb5851sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811014449/hb5851Isup2.hkl
Cyclohexylisothiocyanate (0.706 g, 5 mmol) and hydrazine hydrate (0.250 g, 5 mmol), each dissolved in 10 ml e thanol were mixed with constant stirring. The stirring was continued for 30 min and the white product that formed, N(4)-cyclohexylthiosemicarbazide, was washed with ethanol and dried in vacuo. A solution of this (0.51 g, 3 mmol) in 10 ml me thanol was refluxed with a methanolic solution of pyruvic acid (0.261 g, 3 mmol) for 5 h after the addition of 1–2 drops of glacial acetic acid. On cooling the solution to room temperature, white precipitate separated, which were filtered and washed with methanol. The white precipitate was recrystallized from methanol to yield colourless prisms and dried in vacuo over silica gel. (M.pt. 465–467 K. Yield 0.621 g (80%). Anal. Found: C, 49.31; H, 7.01; N, 17.18%. C10H17N3O2S requires: C, 49.36; H, 7.04; N, 17.26%. FT—IR (KBr, cm-1) νmax: 3322 (m, OH), 3197 (s, NH), 2922, 2851 (s, cyclohexyl), 1692 (m, C═O), 1619 (w, C═N), 980 (m, N—N), 1249, 873 (w, C═S).
Carbon-bound H-atoms were placed in calculated positions (C–H = 0.98 to 1.00 Å) and were included in the
in the riding model approximation, with Uiso(H) set to 1.2–1.5Ueq(C). The O– and N-bound H-atoms were located in a difference Fourier map and were refined with distance restraints of O—H = 0.84±0.01 Å and N—H 0.88±0.01 Å, and with Uiso(H) = yUeq(N) for y = 1.5 (O) and 1.2 (N).Data collection: CrysAlis PRO (Agilent, 2010); cell
CrysAlis PRO (Agilent, 2010); data reduction: CrysAlis PRO (Agilent, 2010); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).C10H17N3O2S | F(000) = 520 |
Mr = 243.33 | Dx = 1.336 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 3312 reflections |
a = 8.9204 (2) Å | θ = 2.3–29.1° |
b = 6.0350 (2) Å | µ = 0.26 mm−1 |
c = 22.4750 (6) Å | T = 100 K |
β = 90.051 (3)° | Prism, colourless |
V = 1209.93 (6) Å3 | 0.30 × 0.20 × 0.10 mm |
Z = 4 |
Agilent Supernova Dual diffractometer with an Atlas detector | 2723 independent reflections |
Radiation source: SuperNova (Mo) X-ray Source | 2251 reflections with I > 2σ(I) |
Mirror monochromator | Rint = 0.036 |
Detector resolution: 10.4041 pixels mm-1 | θmax = 27.5°, θmin = 2.5° |
ω scans | h = −11→11 |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2010) | k = −6→7 |
Tmin = 0.687, Tmax = 1.000 | l = −29→29 |
7394 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)] = 0.041 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.143 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.98 | w = 1/[σ2(Fo2) + (0.1P)2] where P = (Fo2 + 2Fc2)/3 |
2723 reflections | (Δ/σ)max = 0.001 |
158 parameters | Δρmax = 0.36 e Å−3 |
3 restraints | Δρmin = −0.32 e Å−3 |
C10H17N3O2S | V = 1209.93 (6) Å3 |
Mr = 243.33 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 8.9204 (2) Å | µ = 0.26 mm−1 |
b = 6.0350 (2) Å | T = 100 K |
c = 22.4750 (6) Å | 0.30 × 0.20 × 0.10 mm |
β = 90.051 (3)° |
Agilent Supernova Dual diffractometer with an Atlas detector | 2723 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2010) | 2251 reflections with I > 2σ(I) |
Tmin = 0.687, Tmax = 1.000 | Rint = 0.036 |
7394 measured reflections |
R[F2 > 2σ(F2)] = 0.041 | 3 restraints |
wR(F2) = 0.143 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.98 | Δρmax = 0.36 e Å−3 |
2723 reflections | Δρmin = −0.32 e Å−3 |
158 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 | 1.07001 (5) | 1.46426 (7) | 0.59008 (2) | 0.01940 (18) | |
O1 | 0.65476 (14) | 0.6300 (2) | 0.54143 (6) | 0.0209 (3) | |
O2 | 0.53180 (13) | 0.7099 (2) | 0.45694 (6) | 0.0196 (3) | |
N1 | 0.80028 (16) | 1.0010 (2) | 0.53480 (7) | 0.0156 (3) | |
N2 | 0.88614 (16) | 1.1878 (2) | 0.53543 (7) | 0.0170 (3) | |
N3 | 0.94326 (16) | 1.0938 (3) | 0.63114 (7) | 0.0169 (3) | |
C1 | 0.62814 (18) | 0.7522 (3) | 0.49413 (8) | 0.0164 (4) | |
C2 | 0.72145 (19) | 0.9564 (3) | 0.48899 (8) | 0.0162 (4) | |
C3 | 0.7098 (2) | 1.0904 (3) | 0.43363 (8) | 0.0211 (4) | |
H3A | 0.6904 | 1.2455 | 0.4440 | 0.032* | |
H3B | 0.6273 | 1.0339 | 0.4091 | 0.032* | |
H3C | 0.8039 | 1.0800 | 0.4113 | 0.032* | |
C4 | 0.96146 (18) | 1.2376 (3) | 0.58689 (8) | 0.0156 (4) | |
C5 | 1.00682 (18) | 1.1176 (3) | 0.69060 (7) | 0.0157 (4) | |
H5 | 1.1055 | 1.1951 | 0.6871 | 0.019* | |
C6 | 1.0336 (2) | 0.8900 (3) | 0.71759 (9) | 0.0210 (4) | |
H6A | 1.1037 | 0.8054 | 0.6921 | 0.025* | |
H6B | 0.9377 | 0.8076 | 0.7194 | 0.025* | |
C7 | 1.0991 (2) | 0.9113 (3) | 0.78024 (8) | 0.0221 (4) | |
H7A | 1.1116 | 0.7618 | 0.7977 | 0.026* | |
H7B | 1.1994 | 0.9811 | 0.7779 | 0.026* | |
C8 | 0.9984 (2) | 1.0501 (3) | 0.82063 (9) | 0.0235 (4) | |
H8A | 0.9019 | 0.9725 | 0.8267 | 0.028* | |
H8B | 1.0471 | 1.0689 | 0.8599 | 0.028* | |
C9 | 0.9696 (2) | 1.2771 (3) | 0.79289 (9) | 0.0250 (4) | |
H9A | 0.8988 | 1.3610 | 0.8182 | 0.030* | |
H9B | 1.0648 | 1.3611 | 0.7912 | 0.030* | |
C10 | 0.9048 (2) | 1.2561 (3) | 0.73033 (8) | 0.0212 (4) | |
H10A | 0.8046 | 1.1858 | 0.7325 | 0.025* | |
H10B | 0.8924 | 1.4055 | 0.7128 | 0.025* | |
H1 | 0.602 (2) | 0.514 (3) | 0.5431 (12) | 0.040 (7)* | |
H2 | 0.892 (2) | 1.275 (3) | 0.5035 (6) | 0.026 (6)* | |
H3 | 0.888 (2) | 0.976 (2) | 0.6260 (11) | 0.029 (6)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0251 (3) | 0.0177 (3) | 0.0154 (3) | −0.00825 (16) | −0.0030 (2) | 0.00088 (18) |
O1 | 0.0233 (6) | 0.0208 (7) | 0.0185 (7) | −0.0089 (5) | −0.0048 (5) | 0.0055 (6) |
O2 | 0.0200 (6) | 0.0205 (7) | 0.0182 (7) | −0.0064 (5) | −0.0030 (5) | 0.0018 (5) |
N1 | 0.0148 (7) | 0.0144 (7) | 0.0178 (8) | −0.0030 (5) | 0.0009 (6) | −0.0010 (6) |
N2 | 0.0214 (7) | 0.0140 (7) | 0.0157 (8) | −0.0039 (6) | −0.0007 (6) | 0.0036 (6) |
N3 | 0.0196 (7) | 0.0172 (7) | 0.0140 (8) | −0.0068 (6) | −0.0047 (6) | 0.0006 (6) |
C1 | 0.0159 (8) | 0.0178 (9) | 0.0155 (9) | 0.0010 (7) | 0.0000 (7) | −0.0017 (7) |
C2 | 0.0153 (8) | 0.0168 (9) | 0.0166 (9) | −0.0015 (6) | 0.0005 (7) | 0.0006 (7) |
C3 | 0.0247 (9) | 0.0215 (9) | 0.0169 (9) | −0.0069 (7) | −0.0040 (7) | 0.0022 (8) |
C4 | 0.0154 (8) | 0.0160 (8) | 0.0155 (8) | −0.0002 (6) | 0.0004 (7) | −0.0008 (7) |
C5 | 0.0173 (8) | 0.0184 (9) | 0.0112 (8) | −0.0030 (7) | −0.0038 (6) | −0.0006 (7) |
C6 | 0.0255 (9) | 0.0168 (9) | 0.0208 (9) | 0.0006 (7) | 0.0006 (8) | −0.0003 (8) |
C7 | 0.0266 (9) | 0.0186 (9) | 0.0210 (10) | 0.0007 (7) | −0.0032 (8) | 0.0036 (8) |
C8 | 0.0301 (10) | 0.0263 (10) | 0.0141 (9) | −0.0050 (8) | −0.0001 (8) | −0.0016 (8) |
C9 | 0.0318 (10) | 0.0241 (10) | 0.0191 (9) | 0.0032 (8) | −0.0004 (8) | −0.0057 (8) |
C10 | 0.0255 (9) | 0.0197 (9) | 0.0185 (9) | 0.0037 (7) | −0.0007 (8) | −0.0011 (8) |
S1—C4 | 1.6774 (18) | C5—C10 | 1.525 (2) |
O1—C1 | 1.315 (2) | C5—H5 | 1.0000 |
O1—H1 | 0.845 (10) | C6—C7 | 1.530 (3) |
O2—C1 | 1.225 (2) | C6—H6A | 0.9900 |
N1—C2 | 1.275 (2) | C6—H6B | 0.9900 |
N1—N2 | 1.363 (2) | C7—C8 | 1.528 (3) |
N2—C4 | 1.370 (2) | C7—H7A | 0.9900 |
N2—H2 | 0.892 (9) | C7—H7B | 0.9900 |
N3—C4 | 1.330 (2) | C8—C9 | 1.527 (3) |
N3—C5 | 1.458 (2) | C8—H8A | 0.9900 |
N3—H3 | 0.870 (9) | C8—H8B | 0.9900 |
C1—C2 | 1.491 (2) | C9—C10 | 1.525 (3) |
C2—C3 | 1.488 (3) | C9—H9A | 0.9900 |
C3—H3A | 0.9800 | C9—H9B | 0.9900 |
C3—H3B | 0.9800 | C10—H10A | 0.9900 |
C3—H3C | 0.9800 | C10—H10B | 0.9900 |
C5—C6 | 1.520 (3) | ||
C1—O1—H1 | 113.7 (18) | C5—C6—H6A | 109.5 |
C2—N1—N2 | 119.52 (15) | C7—C6—H6A | 109.5 |
N1—N2—C4 | 117.71 (14) | C5—C6—H6B | 109.5 |
N1—N2—H2 | 121.1 (14) | C7—C6—H6B | 109.5 |
C4—N2—H2 | 121.2 (14) | H6A—C6—H6B | 108.1 |
C4—N3—C5 | 124.97 (14) | C8—C7—C6 | 111.63 (15) |
C4—N3—H3 | 120.2 (16) | C8—C7—H7A | 109.3 |
C5—N3—H3 | 114.8 (16) | C6—C7—H7A | 109.3 |
O2—C1—O1 | 124.08 (15) | C8—C7—H7B | 109.3 |
O2—C1—C2 | 120.71 (15) | C6—C7—H7B | 109.3 |
O1—C1—C2 | 115.18 (15) | H7A—C7—H7B | 108.0 |
N1—C2—C3 | 126.77 (15) | C9—C8—C7 | 110.38 (16) |
N1—C2—C1 | 114.80 (15) | C9—C8—H8A | 109.6 |
C3—C2—C1 | 118.38 (15) | C7—C8—H8A | 109.6 |
C2—C3—H3A | 109.5 | C9—C8—H8B | 109.6 |
C2—C3—H3B | 109.5 | C7—C8—H8B | 109.6 |
H3A—C3—H3B | 109.5 | H8A—C8—H8B | 108.1 |
C2—C3—H3C | 109.5 | C10—C9—C8 | 111.43 (15) |
H3A—C3—H3C | 109.5 | C10—C9—H9A | 109.3 |
H3B—C3—H3C | 109.5 | C8—C9—H9A | 109.3 |
N3—C4—N2 | 115.34 (15) | C10—C9—H9B | 109.3 |
N3—C4—S1 | 124.83 (14) | C8—C9—H9B | 109.3 |
N2—C4—S1 | 119.82 (13) | H9A—C9—H9B | 108.0 |
N3—C5—C6 | 109.71 (14) | C5—C10—C9 | 111.06 (14) |
N3—C5—C10 | 111.03 (14) | C5—C10—H10A | 109.4 |
C6—C5—C10 | 110.79 (15) | C9—C10—H10A | 109.4 |
N3—C5—H5 | 108.4 | C5—C10—H10B | 109.4 |
C6—C5—H5 | 108.4 | C9—C10—H10B | 109.4 |
C10—C5—H5 | 108.4 | H10A—C10—H10B | 108.0 |
C5—C6—C7 | 110.56 (15) | ||
C2—N1—N2—C4 | 175.80 (15) | C4—N3—C5—C6 | −151.10 (16) |
N2—N1—C2—C3 | −0.7 (3) | C4—N3—C5—C10 | 86.1 (2) |
N2—N1—C2—C1 | −178.00 (14) | N3—C5—C6—C7 | −179.54 (14) |
O2—C1—C2—N1 | 169.21 (15) | C10—C5—C6—C7 | −56.59 (19) |
O1—C1—C2—N1 | −8.9 (2) | C5—C6—C7—C8 | 56.5 (2) |
O2—C1—C2—C3 | −8.4 (2) | C6—C7—C8—C9 | −55.6 (2) |
O1—C1—C2—C3 | 173.52 (15) | C7—C8—C9—C10 | 55.2 (2) |
C5—N3—C4—N2 | −177.12 (15) | N3—C5—C10—C9 | 178.84 (14) |
C5—N3—C4—S1 | 4.2 (2) | C6—C5—C10—C9 | 56.7 (2) |
N1—N2—C4—N3 | 0.7 (2) | C8—C9—C10—C5 | −56.1 (2) |
N1—N2—C4—S1 | 179.49 (12) |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3···N1 | 0.87 (1) | 2.20 (2) | 2.574 (2) | 106 (2) |
O1—H1···O2i | 0.85 (1) | 1.80 (1) | 2.6416 (17) | 172 (3) |
N2—H2···S1ii | 0.89 (1) | 2.65 (1) | 3.5384 (15) | 176 (2) |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) −x+2, −y+3, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C10H17N3O2S |
Mr | 243.33 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 100 |
a, b, c (Å) | 8.9204 (2), 6.0350 (2), 22.4750 (6) |
β (°) | 90.051 (3) |
V (Å3) | 1209.93 (6) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.26 |
Crystal size (mm) | 0.30 × 0.20 × 0.10 |
Data collection | |
Diffractometer | Agilent Supernova Dual diffractometer with an Atlas detector |
Absorption correction | Multi-scan (CrysAlis PRO; Agilent, 2010) |
Tmin, Tmax | 0.687, 1.000 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7394, 2723, 2251 |
Rint | 0.036 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.041, 0.143, 0.98 |
No. of reflections | 2723 |
No. of parameters | 158 |
No. of restraints | 3 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.36, −0.32 |
Computer programs: CrysAlis PRO (Agilent, 2010), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006), publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3···N1 | 0.873 (14) | 2.20 (2) | 2.574 (2) | 105.6 (17) |
O1—H1···O2i | 0.845 (10) | 1.802 (10) | 2.6416 (17) | 172 (3) |
N2—H2···S1ii | 0.892 (9) | 2.648 (10) | 3.5384 (15) | 176.2 (18) |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) −x+2, −y+3, −z+1. |
Footnotes
‡Additional correspondence author, e-mail: maaffan@yahoo.com.
Acknowledgements
This work was supported financially by the Ministry of Science, Technology and Innovation (MOSTI) under a research grant (No. 06-01-09-SF0046). The authors thank Universiti Malaysia Sarawak (UNIMAS) for the facilities to carry out the research work. The authors also thank the University of Malaya for support of the crystallographic facility.
References
Agilent (2010). CrysAlis PRO. Agilent Technologies, Yarnton, Oxfordshire, England. Google Scholar
Brandenburg, K. (2006). DIAMOND. Crystal Impact GbR, Bonn, Germany. Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Normaya, E., Farina, Y., Halim, S. N. A. & Tiekink, E. R. T. (2011). Acta Cryst. E67, o943–o944. Web of Science CSD CrossRef IUCr Journals Google Scholar
Salam, M. A., Affan, M. A., Ahmad, F. B., Ng, S. W. & Tiekink, E. R. T. (2011). Acta Cryst. E67, o955. Web of Science CSD CrossRef IUCr Journals Google Scholar
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In continuation of structural investigations into conformation and hydrogen bonding in thiourea derivatives (Normaya et al. 2011; Salam et al., 2011), the title compound, (I), was investigated.
The central CN3S chromophore in (I), Fig. 1, is planar (r.m.s. = 0.0039 Å). The carboxylate residue is slightly twisted out this plane (dihedral angle = 7.18 (8) °), and, by contrast, the least-squares plane through the cyclohexyl group (which has the conformation of a chair) is twisted significantly out of the central plane (dihedral angle = 62.29 (4) °). The H atoms of the NH groups are anti, and the conformation about the azomethine bond [1.275 (2) Å] is E. The N3—H forms an intramolecular hydrogen bond with the imino-N3 atom, Table 1. Finally, the thione and carboxylic acid groups lie to opposite sides of the molecule. This arrangements enables the formation of linear supramolecular chains via hydrogen bonds along [110] in the crystal packing, Fig. 2 and Table 1. The carboxylic acid residues self-associate via a centrosymmetric eight-membered {···HOC═O}2 synthon. Similarly, the thiourea entity with the NH atom not involved in the intramolecular N—H···N interaction, self-associates via a centrosymmetric eight-membered {···HNC═ S}2 synthon. Chains lie in the ab plane with the cyclohexyl rings inter-digitating along the c axis, Fig. 3.