supplementary materials
N-(1,3-Thiazol-2-yl)benzamide
The title compound, C10H8N2OS, features a nonplanar molecule [dihedral angle between the two aromatic rings = 43.6 (1)°]. Two molecules are linked by N-H
N hydrogen bonds about a centre of inversion, giving rise to a hydrogen-bonded dimer.
2-Aminothiazole (1 g, 10 mmol) and benzoyl cyanide (1.31 g, 10 mmol) were
stirred together without any solvent for 3 h at 323 K. The oily product was
purified by recrystalization from ethanol (yield 1.97 g, 90%); m.p. 383 K.
Carbon-bound H-atoms were placed in calculated positions (C–H 0.95 Å) and
were included in the refinement in the riding model approximation, with
U(H) set to 1.2U(C).
The amino H-atom was located in a difference Fouier map, and was
freely refined.
Data collection: APEX2 (Bruker, 2008); cell refinement: SAINT (Bruker, 2008); data reduction: SAINT (Bruker, 2008); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001); software used to prepare material for publication: publCIF (Westrip, 2009).
N-(1,3-Thiazol-2-yl)benzamide
top
Crystal data top
| C10H8N2OS | F(000) = 424 |
| Mr = 204.24 | Dx = 1.467 Mg m−3 |
| Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
| Hall symbol: -P 2ybc | Cell parameters from 3661 reflections |
| a = 12.0142 (2) Å | θ = 2.7–28.3° |
| b = 5.0581 (1) Å | µ = 0.31 mm−1 |
| c = 15.4090 (3) Å | T = 123 K |
| β = 99.093 (1)° | Prism, colorless |
| V = 924.62 (3) Å3 | 0.35 × 0.20 × 0.15 mm |
| Z = 4 | |
Data collection top
Bruker SMART APEX diffractometer | 2104 independent reflections |
| Radiation source: fine-focus sealed tube | 1900 reflections with I > 2σ(I) |
| graphite | Rint = 0.016 |
| ω scans | θmax = 27.5°, θmin = 1.7° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −15→15 |
| Tmin = 0.898, Tmax = 0.955 | k = −6→6 |
| 6130 measured reflections | l = −18→20 |
Refinement top
| 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)] = 0.029 | Hydrogen site location: inferred from neighbouring sites |
| wR(F2) = 0.087 | H atoms treated by a mixture of independent and constrained refinement |
| S = 1.07 | w = 1/[σ2(Fo2) + (0.0497P)2 + 0.3231P] where P = (Fo2 + 2Fc2)/3 |
| 2104 reflections | (Δ/σ)max = 0.001 |
| 131 parameters | Δρmax = 0.37 e Å−3 |
| 0 restraints | Δρmin = −0.21 e Å−3 |
Crystal data top
| C10H8N2OS | V = 924.62 (3) Å3 |
| Mr = 204.24 | Z = 4 |
| Monoclinic, P21/c | Mo Kα radiation |
| a = 12.0142 (2) Å | µ = 0.31 mm−1 |
| b = 5.0581 (1) Å | T = 123 K |
| c = 15.4090 (3) Å | 0.35 × 0.20 × 0.15 mm |
| β = 99.093 (1)° | |
Data collection top
Bruker SMART APEX diffractometer | 2104 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1900 reflections with I > 2σ(I) |
| Tmin = 0.898, Tmax = 0.955 | Rint = 0.016 |
| 6130 measured reflections | θmax = 27.5° |
Refinement top
| R[F2 > 2σ(F2)] = 0.029 | H atoms treated by a mixture of independent and constrained refinement |
| wR(F2) = 0.087 | Δρmax = 0.37 e Å−3 |
| S = 1.07 | Δρmin = −0.21 e Å−3 |
| 2104 reflections | Absolute structure: ? |
| 131 parameters | Flack parameter: ? |
| 0 restraints | Rogers parameter: ? |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top| | x | y | z | Uiso*/Ueq | |
| S1 | 0.31389 (3) | 0.14766 (7) | 0.64434 (2) | 0.02139 (12) | |
| O1 | 0.17527 (8) | 0.5276 (2) | 0.56442 (6) | 0.0229 (2) | |
| N1 | 0.49298 (9) | 0.2290 (2) | 0.57510 (7) | 0.0196 (2) | |
| N2 | 0.34258 (9) | 0.4997 (2) | 0.51416 (7) | 0.0186 (2) | |
| H2 | 0.3903 (16) | 0.574 (4) | 0.4833 (13) | 0.039 (5)* | |
| C1 | 0.43025 (12) | −0.0499 (3) | 0.67627 (9) | 0.0229 (3) | |
| H1 | 0.4338 | −0.1892 | 0.7180 | 0.028* | |
| C2 | 0.51534 (11) | 0.0214 (3) | 0.63371 (8) | 0.0210 (3) | |
| H2A | 0.5863 | −0.0656 | 0.6434 | 0.025* | |
| C3 | 0.38904 (11) | 0.3090 (2) | 0.57304 (8) | 0.0173 (3) | |
| C4 | 0.23427 (11) | 0.5903 (3) | 0.50994 (8) | 0.0179 (3) | |
| C5 | 0.19345 (10) | 0.7638 (3) | 0.43320 (8) | 0.0178 (3) | |
| C6 | 0.11908 (11) | 0.9675 (3) | 0.44382 (9) | 0.0207 (3) | |
| H6 | 0.0981 | 0.9989 | 0.4998 | 0.025* | |
| C7 | 0.07532 (11) | 1.1252 (3) | 0.37287 (9) | 0.0239 (3) | |
| H7 | 0.0251 | 1.2655 | 0.3804 | 0.029* | |
| C8 | 0.10522 (11) | 1.0769 (3) | 0.29083 (9) | 0.0235 (3) | |
| H8 | 0.0754 | 1.1848 | 0.2422 | 0.028* | |
| C9 | 0.17835 (11) | 0.8722 (3) | 0.27946 (9) | 0.0221 (3) | |
| H9 | 0.1978 | 0.8389 | 0.2231 | 0.026* | |
| C10 | 0.22320 (11) | 0.7157 (3) | 0.35072 (8) | 0.0199 (3) | |
| H10 | 0.2739 | 0.5765 | 0.3432 | 0.024* | |
Atomic displacement parameters (Å2) top| | U11 | U22 | U33 | U12 | U13 | U23 |
| S1 | 0.02421 (19) | 0.02313 (19) | 0.01715 (19) | −0.00215 (12) | 0.00419 (13) | 0.00464 (12) |
| O1 | 0.0245 (5) | 0.0273 (5) | 0.0181 (5) | 0.0007 (4) | 0.0071 (4) | 0.0020 (4) |
| N1 | 0.0231 (5) | 0.0187 (5) | 0.0170 (5) | 0.0014 (4) | 0.0027 (4) | 0.0016 (4) |
| N2 | 0.0201 (5) | 0.0202 (5) | 0.0160 (5) | 0.0008 (4) | 0.0049 (4) | 0.0042 (4) |
| C1 | 0.0300 (7) | 0.0190 (6) | 0.0181 (6) | −0.0018 (5) | −0.0012 (5) | 0.0027 (5) |
| C2 | 0.0260 (6) | 0.0174 (6) | 0.0182 (6) | 0.0013 (5) | −0.0010 (5) | 0.0002 (5) |
| C3 | 0.0223 (6) | 0.0170 (6) | 0.0125 (6) | −0.0019 (5) | 0.0027 (5) | −0.0008 (4) |
| C4 | 0.0210 (6) | 0.0184 (6) | 0.0143 (6) | −0.0004 (5) | 0.0028 (5) | −0.0018 (5) |
| C5 | 0.0180 (6) | 0.0189 (6) | 0.0161 (6) | −0.0021 (5) | 0.0015 (5) | 0.0008 (5) |
| C6 | 0.0181 (6) | 0.0242 (6) | 0.0201 (6) | −0.0001 (5) | 0.0038 (5) | −0.0028 (5) |
| C7 | 0.0206 (6) | 0.0209 (6) | 0.0291 (7) | 0.0022 (5) | 0.0007 (5) | −0.0006 (5) |
| C8 | 0.0213 (6) | 0.0241 (6) | 0.0231 (7) | −0.0013 (5) | −0.0022 (5) | 0.0061 (5) |
| C9 | 0.0221 (6) | 0.0277 (7) | 0.0163 (6) | −0.0026 (5) | 0.0028 (5) | 0.0017 (5) |
| C10 | 0.0200 (6) | 0.0217 (6) | 0.0180 (6) | 0.0015 (5) | 0.0032 (5) | 0.0001 (5) |
Geometric parameters (Å, °) top
| S1—C1 | 1.7255 (14) | C5—C6 | 1.3903 (18) |
| S1—C3 | 1.7327 (13) | C5—C10 | 1.3949 (18) |
| O1—C4 | 1.2231 (16) | C6—C7 | 1.3877 (19) |
| N1—C3 | 1.3084 (17) | C6—H6 | 0.9500 |
| N1—C2 | 1.3834 (16) | C7—C8 | 1.389 (2) |
| N2—C4 | 1.3714 (17) | C7—H7 | 0.9500 |
| N2—C3 | 1.3801 (16) | C8—C9 | 1.387 (2) |
| N2—H2 | 0.88 (2) | C8—H8 | 0.9500 |
| C1—C2 | 1.348 (2) | C9—C10 | 1.3913 (18) |
| C1—H1 | 0.9500 | C9—H9 | 0.9500 |
| C2—H2A | 0.9500 | C10—H10 | 0.9500 |
| C4—C5 | 1.4919 (17) | | |
| | | |
| C1—S1—C3 | 88.49 (6) | C6—C5—C4 | 118.65 (11) |
| C3—N1—C2 | 109.69 (11) | C10—C5—C4 | 121.33 (12) |
| C4—N2—C3 | 123.16 (11) | C7—C6—C5 | 120.24 (12) |
| C4—N2—H2 | 121.6 (13) | C7—C6—H6 | 119.9 |
| C3—N2—H2 | 114.8 (13) | C5—C6—H6 | 119.9 |
| C2—C1—S1 | 110.43 (10) | C6—C7—C8 | 119.71 (13) |
| C2—C1—H1 | 124.8 | C6—C7—H7 | 120.1 |
| S1—C1—H1 | 124.8 | C8—C7—H7 | 120.1 |
| C1—C2—N1 | 115.88 (12) | C7—C8—C9 | 120.40 (12) |
| C1—C2—H2A | 122.1 | C7—C8—H8 | 119.8 |
| N1—C2—H2A | 122.1 | C9—C8—H8 | 119.8 |
| N1—C3—N2 | 121.17 (11) | C8—C9—C10 | 119.95 (13) |
| N1—C3—S1 | 115.46 (10) | C8—C9—H9 | 120.0 |
| N2—C3—S1 | 123.29 (10) | C10—C9—H9 | 120.0 |
| O1—C4—N2 | 121.95 (12) | C5—C10—C9 | 119.78 (12) |
| O1—C4—C5 | 122.90 (12) | C5—C10—H10 | 120.1 |
| N2—C4—C5 | 115.14 (11) | C9—C10—H10 | 120.1 |
| C6—C5—C10 | 119.91 (12) | | |
| | | |
| C3—S1—C1—C2 | 1.28 (10) | N2—C4—C5—C6 | −146.32 (12) |
| S1—C1—C2—N1 | −0.31 (15) | O1—C4—C5—C10 | −141.00 (14) |
| C3—N1—C2—C1 | −1.25 (16) | N2—C4—C5—C10 | 37.46 (17) |
| C2—N1—C3—N2 | −174.45 (11) | C10—C5—C6—C7 | −0.75 (19) |
| C2—N1—C3—S1 | 2.29 (14) | C4—C5—C6—C7 | −177.03 (11) |
| C4—N2—C3—N1 | −179.70 (12) | C5—C6—C7—C8 | 0.7 (2) |
| C4—N2—C3—S1 | 3.83 (17) | C6—C7—C8—C9 | 0.1 (2) |
| C1—S1—C3—N1 | −2.12 (10) | C7—C8—C9—C10 | −0.7 (2) |
| C1—S1—C3—N2 | 174.53 (11) | C6—C5—C10—C9 | 0.09 (19) |
| C3—N2—C4—O1 | 7.78 (19) | C4—C5—C10—C9 | 176.27 (12) |
| C3—N2—C4—C5 | −170.70 (11) | C8—C9—C10—C5 | 0.6 (2) |
| O1—C4—C5—C6 | 35.22 (18) | | |
Hydrogen-bond geometry (Å, °) top
| D—H···A | D—H | H···A | D···A | D—H···A |
| N2—H2···N1i | 0.88 (2) | 2.04 (2) | 2.922 (2) | 173 (2) |
| Symmetry codes: (i) −x+1, −y+1, −z+1. |
Table 1
Hydrogen-bond geometry (Å, °) top
| D—H···A | D—H | H···A | D···A | D—H···A |
| N2—H2···N1i | 0.88 (2) | 2.04 (2) | 2.922 (2) | 173 (2) |
| Symmetry codes: (i) −x+1, −y+1, −z+1. |
The authors thank the Research Council of Tehran University and the University
of Malaya for supporting this study.
Barbour, L. J. (2001). J. Supramol. Chem. 1, 189–191.
Bruker (2008). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Kumar, V., Parmar, V. S. & Malhotra, S. M. (2007). Tetrahedron Lett. 48, 809–812.
Prasad, A. K., Kumar, V., Malhotra, S., Ravikumar, V. T., Sanghvib, Y. S. & Parmar, V. S. (2005). Bioorg. Org. Med. Chem. 13, 4467–4472.
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122.
Westrip, S. P. (2009). publCIF. In preparation.