Experimental
Crystal data
C9H10N4O2S Mr = 238.27 Triclinic, ![[P \overline 1]](teximages/at2598fi1.gif) a = 7.4450 (15) Å b = 9.3180 (19) Å c = 9.4050 (19) Å α = 62.08 (3)° β = 76.41 (3)° γ = 69.02 (3)° V = 536.5 (3) Å3 Z = 2 Mo Kα radiation μ = 0.29 mm−1 T = 293 (2) K 0.20 × 0.15 × 0.10 mm
|
Data collection
Bruker SMART CCD area-detector diffractometer Absorption correction: none 2493 measured reflections 2307 independent reflections 1776 reflections with I > 2σ(I) Rint = 0.026
|
D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A | N3—H3A⋯S1i | 0.86 | 2.74 | 3.581 (2) | 166 | N4—H4A⋯O1ii | 0.86 | 2.35 | 3.101 (3) | 146 | N4—H4B⋯O2iii | 0.86 | 2.29 | 3.133 (3) | 166 | Symmetry codes: (i) -x, -y+2, -z+1; (ii) -x, -y, -z+2; (iii) x-1, y+1, z-1. | |
Data collection: SMART (Bruker, 1997
); cell refinement: SAINT (Bruker, 1997
); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008
); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008
); molecular graphics: SHELXTL (Sheldrick, 2008
); software used to prepare material for publication: SHELXTL.
Supporting information
A mixture of hydrochloric acid 0.6 mL (0.02 mol) and thiosemicarbazide 1.8 g (0.02 mol) was stirred with ethanol (50 mL) at 293 K for 2 h, then add 1-(4-nitrophenyl)ethanone 3.3 g (0.02 mol), then afford the title compound [4.17 g, yield: 87.6%]. Single crystals suitable for X-ray measurements were obtained by recrystallization from acetone and ethanol(1:1) at room temperature.
H atoms were fixed geometrically and allowed to ride on their attached atoms, with C—H and N—H distances of 0.93–0.96 and 0.86 Å, and with Uiso=1.2 or 1.5Ueq.
Data collection: SMART (Bruker, 1997); cell refinement: SAINT (Bruker, 1997); data reduction: SAINT (Bruker, 1997); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).
1-[1-(4-Nitrophenyl)ethylidene]thiosemicarbazide
top Crystal data top C9H10N4O2S | Z = 2 |
Mr = 238.27 | F(000) = 248 |
Triclinic, P1 | Dx = 1.475 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 7.4450 (15) Å | Cell parameters from 1776 reflections |
b = 9.3180 (19) Å | θ = 2.5–27.0° |
c = 9.4050 (19) Å | µ = 0.29 mm−1 |
α = 62.08 (3)° | T = 293 K |
β = 76.41 (3)° | Block, yellow |
γ = 69.02 (3)° | 0.20 × 0.15 × 0.10 mm |
V = 536.5 (3) Å3 | |
Data collection top Bruker SMART CCD area-detector diffractometer | 1776 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.026 |
Graphite monochromator | θmax = 27.0°, θmin = 2.5° |
ϕ and ω scans | h = 0→8 |
2493 measured reflections | k = −11→11 |
2307 independent reflections | l = −11→11 |
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)] = 0.046 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.140 | H-atom parameters constrained |
S = 1.08 | w = 1/[σ2(Fo2) + (0.0802P)2 + 0.1605P] where P = (Fo2 + 2Fc2)/3 |
2307 reflections | (Δ/σ)max < 0.001 |
145 parameters | Δρmax = 0.39 e Å−3 |
0 restraints | Δρmin = −0.38 e Å−3 |
Crystal data top C9H10N4O2S | γ = 69.02 (3)° |
Mr = 238.27 | V = 536.5 (3) Å3 |
Triclinic, P1 | Z = 2 |
a = 7.4450 (15) Å | Mo Kα radiation |
b = 9.3180 (19) Å | µ = 0.29 mm−1 |
c = 9.4050 (19) Å | T = 293 K |
α = 62.08 (3)° | 0.20 × 0.15 × 0.10 mm |
β = 76.41 (3)° | |
Data collection top Bruker SMART CCD area-detector diffractometer | 1776 reflections with I > 2σ(I) |
2493 measured reflections | Rint = 0.026 |
2307 independent reflections | |
Refinement top R[F2 > 2σ(F2)] = 0.046 | 0 restraints |
wR(F2) = 0.140 | H-atom parameters constrained |
S = 1.08 | Δρmax = 0.39 e Å−3 |
2307 reflections | Δρmin = −0.38 e Å−3 |
145 parameters | |
Special details top 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. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top | x | y | z | Uiso*/Ueq | |
S1 | −0.18728 (10) | 0.97254 (7) | 0.38617 (7) | 0.0483 (2) | |
O1 | 0.2761 (3) | −0.3046 (2) | 1.2287 (3) | 0.0697 (6) | |
O2 | 0.4183 (3) | −0.2729 (2) | 1.3830 (2) | 0.0680 (6) | |
N1 | 0.3337 (3) | −0.2167 (2) | 1.2626 (2) | 0.0472 (5) | |
N2 | 0.0574 (3) | 0.5445 (2) | 0.7336 (2) | 0.0373 (4) | |
N3 | 0.0128 (3) | 0.7117 (2) | 0.6222 (2) | 0.0394 (4) | |
H3A | 0.0744 | 0.7778 | 0.6144 | 0.047* | |
N4 | −0.2206 (3) | 0.6599 (2) | 0.5464 (2) | 0.0521 (5) | |
H4A | −0.1876 | 0.5573 | 0.6190 | 0.063* | |
H4B | −0.3121 | 0.6918 | 0.4873 | 0.063* | |
C1 | 0.1766 (3) | 0.1958 (3) | 0.9090 (3) | 0.0392 (5) | |
H1A | 0.1182 | 0.2381 | 0.8145 | 0.047* | |
C2 | 0.2135 (3) | 0.0244 (3) | 1.0120 (3) | 0.0410 (5) | |
H2B | 0.1813 | −0.0485 | 0.9871 | 0.049* | |
C3 | 0.2990 (3) | −0.0353 (2) | 1.1521 (3) | 0.0364 (5) | |
C4 | 0.3527 (3) | 0.0684 (3) | 1.1924 (3) | 0.0415 (5) | |
H4C | 0.4109 | 0.0249 | 1.2873 | 0.050* | |
C5 | 0.3167 (3) | 0.2400 (3) | 1.0864 (3) | 0.0397 (5) | |
H5A | 0.3537 | 0.3112 | 1.1100 | 0.048* | |
C6 | 0.2260 (3) | 0.3065 (2) | 0.9453 (2) | 0.0337 (4) | |
C7 | 0.1848 (3) | 0.4909 (2) | 0.8317 (3) | 0.0371 (5) | |
C8 | 0.2907 (4) | 0.5977 (3) | 0.8389 (4) | 0.0631 (8) | |
H8A | 0.2478 | 0.7120 | 0.7589 | 0.095* | |
H8B | 0.4268 | 0.5521 | 0.8185 | 0.095* | |
H8C | 0.2649 | 0.5972 | 0.9441 | 0.095* | |
C9 | −0.1299 (3) | 0.7696 (3) | 0.5255 (3) | 0.0384 (5) | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
S1 | 0.0686 (4) | 0.0278 (3) | 0.0474 (4) | −0.0157 (3) | −0.0254 (3) | −0.0044 (2) |
O1 | 0.0890 (15) | 0.0312 (9) | 0.0844 (14) | −0.0239 (9) | −0.0267 (11) | −0.0073 (9) |
O2 | 0.0795 (14) | 0.0444 (10) | 0.0588 (11) | −0.0168 (9) | −0.0295 (10) | 0.0051 (9) |
N1 | 0.0442 (11) | 0.0309 (9) | 0.0534 (12) | −0.0102 (8) | −0.0077 (9) | −0.0062 (8) |
N2 | 0.0450 (10) | 0.0227 (8) | 0.0400 (9) | −0.0076 (7) | −0.0105 (8) | −0.0084 (7) |
N3 | 0.0478 (10) | 0.0242 (8) | 0.0446 (10) | −0.0109 (7) | −0.0151 (8) | −0.0078 (7) |
N4 | 0.0678 (14) | 0.0332 (10) | 0.0558 (12) | −0.0205 (9) | −0.0276 (10) | −0.0047 (9) |
C1 | 0.0448 (12) | 0.0296 (10) | 0.0433 (11) | −0.0090 (8) | −0.0139 (9) | −0.0120 (9) |
C2 | 0.0468 (12) | 0.0285 (10) | 0.0513 (13) | −0.0119 (9) | −0.0106 (10) | −0.0158 (9) |
C3 | 0.0352 (11) | 0.0254 (9) | 0.0404 (11) | −0.0070 (8) | −0.0027 (8) | −0.0088 (8) |
C4 | 0.0462 (12) | 0.0361 (11) | 0.0392 (11) | −0.0105 (9) | −0.0112 (9) | −0.0109 (9) |
C5 | 0.0481 (12) | 0.0296 (10) | 0.0444 (12) | −0.0100 (9) | −0.0119 (9) | −0.0152 (9) |
C6 | 0.0347 (10) | 0.0242 (9) | 0.0400 (11) | −0.0063 (8) | −0.0064 (8) | −0.0119 (8) |
C7 | 0.0404 (11) | 0.0249 (9) | 0.0442 (11) | −0.0068 (8) | −0.0093 (9) | −0.0124 (9) |
C8 | 0.0745 (18) | 0.0316 (11) | 0.0821 (19) | −0.0198 (12) | −0.0407 (15) | −0.0044 (12) |
C9 | 0.0481 (12) | 0.0284 (10) | 0.0379 (11) | −0.0111 (9) | −0.0093 (9) | −0.0108 (8) |
Geometric parameters (Å, º) top S1—C9 | 1.685 (2) | C1—H1A | 0.9300 |
O1—N1 | 1.231 (3) | C2—C3 | 1.381 (3) |
O2—N1 | 1.224 (3) | C2—H2B | 0.9300 |
N1—C3 | 1.473 (3) | C3—C4 | 1.389 (3) |
N2—C7 | 1.281 (3) | C4—C5 | 1.395 (3) |
N2—N3 | 1.379 (2) | C4—H4C | 0.9300 |
N3—C9 | 1.353 (3) | C5—C6 | 1.397 (3) |
N3—H3A | 0.8600 | C5—H5A | 0.9300 |
N4—C9 | 1.336 (3) | C6—C7 | 1.498 (3) |
N4—H4A | 0.8600 | C7—C8 | 1.506 (3) |
N4—H4B | 0.8600 | C8—H8A | 0.9600 |
C1—C2 | 1.388 (3) | C8—H8B | 0.9600 |
C1—C6 | 1.406 (3) | C8—H8C | 0.9600 |
| | | |
O2—N1—O1 | 123.1 (2) | C3—C4—H4C | 121.0 |
O2—N1—C3 | 118.7 (2) | C5—C4—H4C | 121.0 |
O1—N1—C3 | 118.15 (19) | C4—C5—C6 | 121.2 (2) |
C7—N2—N3 | 119.08 (18) | C4—C5—H5A | 119.4 |
C9—N3—N2 | 118.64 (17) | C6—C5—H5A | 119.4 |
C9—N3—H3A | 120.7 | C5—C6—C1 | 118.60 (18) |
N2—N3—H3A | 120.7 | C5—C6—C7 | 121.53 (18) |
C9—N4—H4A | 120.0 | C1—C6—C7 | 119.86 (18) |
C9—N4—H4B | 120.0 | N2—C7—C6 | 114.93 (18) |
H4A—N4—H4B | 120.0 | N2—C7—C8 | 125.16 (19) |
C2—C1—C6 | 121.03 (19) | C6—C7—C8 | 119.91 (18) |
C2—C1—H1A | 119.5 | C7—C8—H8A | 109.5 |
C6—C1—H1A | 119.5 | C7—C8—H8B | 109.5 |
C3—C2—C1 | 118.5 (2) | H8A—C8—H8B | 109.5 |
C3—C2—H2B | 120.8 | C7—C8—H8C | 109.5 |
C1—C2—H2B | 120.8 | H8A—C8—H8C | 109.5 |
C2—C3—C4 | 122.67 (19) | H8B—C8—H8C | 109.5 |
C2—C3—N1 | 118.13 (19) | N4—C9—N3 | 117.19 (18) |
C4—C3—N1 | 119.20 (19) | N4—C9—S1 | 122.63 (17) |
C3—C4—C5 | 118.0 (2) | N3—C9—S1 | 120.19 (16) |
Hydrogen-bond geometry (Å, º) top D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···S1i | 0.86 | 2.74 | 3.581 (2) | 166 |
N4—H4A···O1ii | 0.86 | 2.35 | 3.101 (3) | 146 |
N4—H4B···O2iii | 0.86 | 2.29 | 3.133 (3) | 166 |
Symmetry codes: (i) −x, −y+2, −z+1; (ii) −x, −y, −z+2; (iii) x−1, y+1, z−1. |
Experimental details
Crystal data |
Chemical formula | C9H10N4O2S |
Mr | 238.27 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 7.4450 (15), 9.3180 (19), 9.4050 (19) |
α, β, γ (°) | 62.08 (3), 76.41 (3), 69.02 (3) |
V (Å3) | 536.5 (3) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.29 |
Crystal size (mm) | 0.20 × 0.15 × 0.10 |
|
Data collection |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 2493, 2307, 1776 |
Rint | 0.026 |
(sin θ/λ)max (Å−1) | 0.638 |
|
Refinement |
R[F2 > 2σ(F2)], wR(F2), S | 0.046, 0.140, 1.08 |
No. of reflections | 2307 |
No. of parameters | 145 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.39, −0.38 |
Hydrogen-bond geometry (Å, º) top D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···S1i | 0.86 | 2.74 | 3.581 (2) | 166.4 |
N4—H4A···O1ii | 0.86 | 2.35 | 3.101 (3) | 145.5 |
N4—H4B···O2iii | 0.86 | 2.29 | 3.133 (3) | 166.2 |
Symmetry codes: (i) −x, −y+2, −z+1; (ii) −x, −y, −z+2; (iii) x−1, y+1, z−1. |
References
Bruker (1997). SADABS, SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Jian, F.-F., Zhuang, R.-R., Wang, K.-F., Zhao, P.-S. & Xiao, H.-L. (2006). Acta Cryst. E62, o3198–o3199. Web of Science CSD CrossRef IUCr Journals Google Scholar
Qin, Y.-Q., Ren, X.-Y., Liang, T.-L. & Jian, F.-F. (2006). Acta Cryst. E62, o5215–o5216. Web of Science CSD CrossRef IUCr Journals Google Scholar
Rozwadowski, Z., Majewski, E., Dziembowska, T. & Hansen, P. E. (1999). J. Chem. Soc. Perkin Trans. 2, pp. 2809–2817. CrossRef Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
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.
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ISSN: 2056-9890
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Schiff bases have been used extensively as ligands in the field of coordination chemistry (Jian et al., 2006). Schiff bases show biochemical and pharmacological applications. The growing interest in Schiff bases lately is also due to their ability to form intramolecular hydrogen bonds by electron coupling between acid-base centers (Rozwadowski et al.,1999). The title compound (I), was synthesized and we report here its crystal structure
In the crystal structure of (I) (Fig. 1). The C6–C9/N2/N3/S1 plane makes a dihedral angle of 19.78 (127)° with the benzene ring (C1—C6). The C═N bond length [1.281 (3) Å] and C═S bond length [1.685 (2) Å] are in agreement with those observed before (Jian et al., 2006; Qin et al., 2006). There are intermolecular N–H···S and N–H···O hydrogen-bond interactions to stabilize the crystal structure (Table 1).