organic compounds
(E)-Methyl 3-(2-nitrobenzylidene)dithiocarbazate
aCollege of Chemical Engineering and Materials Science, Zhejiang University of Technology, People's Republic of China
*Correspondence e-mail: shanshang@mail.hz.zj.cn
The 9H9N3O2S2, contains two independent molecules, A and B, with similar bond dimensions. In both molecules, the nitro group is tilted with respect to the aromatic ring [dihedral angles 32.0 (1)° in molecule A and 34.0 (1)° in molecule B]. The dithiocarbazate unit is nearly coplanar with the aromatic ring in both molecules. For molecule B, pairs of molecules are linked by N—H⋯O and C—H⋯O hydrogen bonds about a centre of symmetry to form a dimer, whereas molecules A are not involved in hydrogen bonding in the crystal structure.
of the title compound, CRelated literature
For general background, see: Okabe et al. (1993); Hu et al. (2001). For related structures, see: Chen et al. (2007); Shan & Zhang, 2006; Zhang et al. 2005). For synthesis, see: Hu et al. (2001).
Experimental
Crystal data
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Refinement
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Data collection: PROCESS-AUTO (Rigaku, 1998); cell PROCESS-AUTO; data reduction: CrystalStructure (Rigaku/MSC, 2002); program(s) used to solve structure: SIR92 (Altomare et al., 1993); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
https://doi.org/10.1107/S160053680706059X/ng2380sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S160053680706059X/ng2380Isup2.hkl
Methyl dithiocarbazate was synthesized in the manner reported previously (Hu et al., 2001). Methyl dithiocarbazate (1.24 g, 10 mmol) and 2-nitrobenzaldehyde (1.51 g, 10 mmol) were dissolved in ethanol (10 ml) and refluxed for 4 h. Fine yellow crystals appeared on cooling. They were separated and washed with cold water three times. Single crystals of the title compound were obtained by recrystallization from an absolute ethanol solution.
Methyl H atoms were placed in calculated positions with C—H = 0.96 Å and torsion angle was refined to fit electron density, Uiso(H) = 1.5Ueq(C). Other H atoms were placed in calculated positions with C—H = 0.97 and N—H = 0.86 Å, and refined in the riding mode, with Uiso(H) = 1.2Ueq(C,N).
Hydrazone and its derivatives have attracted our much attention because of their application in biological field (Okabe et al., 1993). As part of our ongoing investigation on anti-cancer compounds (Hu et al., 2001), the title compound has been prepared and its structure is presented here.
The
of the title compound contains two crystallographic independent molecules, A (C1-containing molecule) and B (C11-containing molecule), with the similar structure (Fig. 1). In the two molecules, the nitro groups are tilted with respect to the connected benzene rings by dihedral angles of 31.96 (11) and 33.96 (11)°, respectively; while dithiocarbazate moieties are nearly co-planar with the benzene rings, dihedral angles being 3.00 (6) and 4.03 (6)°, respectively. The centro-symmetry related B molecules are linked by N—H···O hydrogen bonding to form the supramolecular dimer (Table 2). Whereas the A molecules are not involved in hydrogen bonding in the The N2?C7 and N12?C17 bond distances (Table 1) indicate the typical N?C double bonds. Around the N?C double bonds, both molecules A and B exhibit the E configuration, similar to those found in related compounds (Chen et al., 2007; Shan & Zhang, 2006; Zhang et al., 2005).For general background, see: Okabe et al. (1993); Hu et al. (2001). For related structures, see: Chen et al. (2007); Shan & Zhang, 2006; Zhang et al. 2005). For synthesis, see: Hu et al. (2001).
Data collection: PROCESS-AUTO (Rigaku, 1998); cell
PROCESS-AUTO (Rigaku, 1998); data reduction: CrystalStructure (Rigaku/MSC, 2002); program(s) used to solve structure: SIR92 (Altomare et al., 1993); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).Fig. 1. The molecular structure of the title compound with 40% probability displacement ellipsoids (arbitrary spheres for H atoms). |
C9H9N3O2S2 | Z = 4 |
Mr = 255.31 | F(000) = 528 |
Triclinic, P1 | Dx = 1.484 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 7.5261 (12) Å | Cell parameters from 8768 reflections |
b = 10.7128 (16) Å | θ = 3.5–25.2° |
c = 14.5343 (17) Å | µ = 0.45 mm−1 |
α = 78.588 (6)° | T = 291 K |
β = 87.095 (5)° | Prism, yellow |
γ = 84.612 (6)° | 0.36 × 0.30 × 0.16 mm |
V = 1143.0 (3) Å3 |
Rigaku R-AXIS RAPID IP diffractometer | 5127 independent reflections |
Radiation source: fine-focus sealed tube | 3773 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.024 |
Detector resolution: 10.00 pixels mm-1 | θmax = 27.4°, θmin = 3.0° |
ω scans | h = −9→9 |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | k = −13→13 |
Tmin = 0.795, Tmax = 0.930 | l = −18→18 |
11206 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) = 0.116 | H-atom parameters constrained |
S = 1.10 | w = 1/[σ2(Fo2) + (0.0526P)2 + 0.2566P] where P = (Fo2 + 2Fc2)/3 |
5127 reflections | (Δ/σ)max = 0.002 |
291 parameters | Δρmax = 0.32 e Å−3 |
0 restraints | Δρmin = −0.31 e Å−3 |
C9H9N3O2S2 | γ = 84.612 (6)° |
Mr = 255.31 | V = 1143.0 (3) Å3 |
Triclinic, P1 | Z = 4 |
a = 7.5261 (12) Å | Mo Kα radiation |
b = 10.7128 (16) Å | µ = 0.45 mm−1 |
c = 14.5343 (17) Å | T = 291 K |
α = 78.588 (6)° | 0.36 × 0.30 × 0.16 mm |
β = 87.095 (5)° |
Rigaku R-AXIS RAPID IP diffractometer | 5127 independent reflections |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | 3773 reflections with I > 2σ(I) |
Tmin = 0.795, Tmax = 0.930 | Rint = 0.024 |
11206 measured reflections |
R[F2 > 2σ(F2)] = 0.041 | 0 restraints |
wR(F2) = 0.116 | H-atom parameters constrained |
S = 1.10 | Δρmax = 0.32 e Å−3 |
5127 reflections | Δρmin = −0.31 e Å−3 |
291 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 | −0.10244 (10) | 0.28477 (6) | 0.50066 (5) | 0.0686 (2) | |
S2 | −0.04064 (8) | 0.25046 (5) | 0.29873 (4) | 0.05480 (17) | |
S11 | 0.67348 (9) | 0.86939 (5) | 0.15976 (5) | 0.06155 (19) | |
S12 | 0.62739 (8) | 0.64462 (5) | 0.06773 (4) | 0.05198 (16) | |
N1 | 0.1634 (3) | 0.88846 (18) | 0.18824 (14) | 0.0555 (5) | |
N2 | 0.0369 (2) | 0.50343 (16) | 0.26593 (12) | 0.0470 (4) | |
N3 | −0.0124 (3) | 0.46023 (17) | 0.35805 (13) | 0.0545 (5) | |
H3N | −0.0185 | 0.5114 | 0.3970 | 0.065* | |
N11 | 0.3762 (3) | 0.30552 (17) | 0.50958 (12) | 0.0499 (4) | |
N12 | 0.5421 (2) | 0.52269 (15) | 0.24812 (12) | 0.0420 (4) | |
N13 | 0.5836 (3) | 0.64538 (16) | 0.24503 (12) | 0.0477 (4) | |
H13N | 0.5823 | 0.6745 | 0.2961 | 0.057* | |
O1 | 0.1188 (3) | 1.00252 (16) | 0.16247 (14) | 0.0801 (6) | |
O2 | 0.2133 (3) | 0.84171 (18) | 0.26726 (13) | 0.0751 (5) | |
O11 | 0.4082 (3) | 0.23524 (18) | 0.58419 (12) | 0.0875 (7) | |
O12 | 0.3194 (3) | 0.41716 (15) | 0.50380 (12) | 0.0646 (5) | |
C1 | 0.1201 (3) | 0.67717 (18) | 0.14835 (14) | 0.0404 (4) | |
C2 | 0.1581 (3) | 0.80514 (18) | 0.12003 (14) | 0.0427 (4) | |
C3 | 0.1920 (3) | 0.8603 (2) | 0.02687 (15) | 0.0496 (5) | |
H3 | 0.2125 | 0.9463 | 0.0103 | 0.060* | |
C4 | 0.1951 (3) | 0.7869 (2) | −0.04046 (16) | 0.0535 (5) | |
H4 | 0.2187 | 0.8226 | −0.1031 | 0.064* | |
C5 | 0.1629 (3) | 0.6593 (2) | −0.01493 (16) | 0.0532 (5) | |
H5 | 0.1668 | 0.6091 | −0.0605 | 0.064* | |
C6 | 0.1251 (3) | 0.6061 (2) | 0.07770 (16) | 0.0494 (5) | |
H6 | 0.1025 | 0.5205 | 0.0933 | 0.059* | |
C7 | 0.0663 (3) | 0.6209 (2) | 0.24519 (15) | 0.0480 (5) | |
H7 | 0.0539 | 0.6708 | 0.2911 | 0.058* | |
C8 | −0.0516 (3) | 0.3381 (2) | 0.38814 (16) | 0.0504 (5) | |
C9 | −0.0977 (4) | 0.0963 (2) | 0.3612 (2) | 0.0689 (7) | |
H9A | −0.0182 | 0.0664 | 0.4121 | 0.103* | |
H9B | −0.0869 | 0.0369 | 0.3193 | 0.103* | |
H9C | −0.2183 | 0.1032 | 0.3857 | 0.103* | |
C11 | 0.4580 (3) | 0.32678 (17) | 0.33941 (13) | 0.0382 (4) | |
C12 | 0.4033 (3) | 0.25252 (18) | 0.42419 (13) | 0.0390 (4) | |
C13 | 0.3699 (3) | 0.12543 (18) | 0.43353 (15) | 0.0453 (5) | |
H13 | 0.3341 | 0.0789 | 0.4914 | 0.054* | |
C14 | 0.3904 (3) | 0.06946 (19) | 0.35602 (16) | 0.0514 (5) | |
H14 | 0.3677 | −0.0155 | 0.3608 | 0.062* | |
C15 | 0.4450 (3) | 0.1400 (2) | 0.27100 (16) | 0.0511 (5) | |
H15 | 0.4585 | 0.1020 | 0.2185 | 0.061* | |
C16 | 0.4798 (3) | 0.2658 (2) | 0.26259 (15) | 0.0451 (5) | |
H16 | 0.5186 | 0.3109 | 0.2048 | 0.054* | |
C17 | 0.5029 (3) | 0.45918 (19) | 0.32906 (14) | 0.0454 (5) | |
H17 | 0.5028 | 0.4967 | 0.3816 | 0.054* | |
C18 | 0.6263 (3) | 0.72055 (18) | 0.16279 (14) | 0.0427 (5) | |
C19 | 0.6919 (4) | 0.7682 (3) | −0.02735 (17) | 0.0663 (7) | |
H19A | 0.5985 | 0.8366 | −0.0368 | 0.099* | |
H19B | 0.7119 | 0.7340 | −0.0836 | 0.099* | |
H19C | 0.7996 | 0.8002 | −0.0124 | 0.099* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0862 (5) | 0.0596 (4) | 0.0520 (3) | −0.0072 (3) | 0.0147 (3) | 0.0049 (3) |
S2 | 0.0588 (3) | 0.0460 (3) | 0.0564 (3) | −0.0097 (3) | 0.0041 (3) | −0.0011 (2) |
S11 | 0.0834 (4) | 0.0354 (3) | 0.0657 (4) | −0.0174 (3) | 0.0141 (3) | −0.0080 (3) |
S12 | 0.0637 (4) | 0.0490 (3) | 0.0444 (3) | −0.0098 (3) | −0.0008 (3) | −0.0096 (2) |
N1 | 0.0720 (13) | 0.0434 (10) | 0.0562 (12) | −0.0216 (9) | 0.0085 (10) | −0.0167 (9) |
N2 | 0.0487 (10) | 0.0401 (9) | 0.0482 (10) | −0.0041 (8) | 0.0011 (8) | 0.0004 (7) |
N3 | 0.0682 (12) | 0.0446 (10) | 0.0471 (10) | −0.0055 (9) | 0.0062 (9) | −0.0023 (8) |
N11 | 0.0681 (12) | 0.0432 (10) | 0.0405 (9) | −0.0102 (9) | 0.0001 (9) | −0.0114 (8) |
N12 | 0.0511 (10) | 0.0315 (8) | 0.0441 (9) | −0.0073 (7) | −0.0019 (8) | −0.0068 (7) |
N13 | 0.0674 (12) | 0.0347 (8) | 0.0425 (9) | −0.0142 (8) | 0.0037 (8) | −0.0078 (7) |
O1 | 0.1226 (17) | 0.0372 (9) | 0.0830 (13) | −0.0105 (10) | 0.0093 (12) | −0.0194 (9) |
O2 | 0.1115 (16) | 0.0655 (11) | 0.0557 (11) | −0.0289 (11) | −0.0109 (10) | −0.0178 (9) |
O11 | 0.164 (2) | 0.0608 (11) | 0.0367 (9) | −0.0046 (12) | −0.0097 (11) | −0.0065 (8) |
O12 | 0.0928 (13) | 0.0452 (9) | 0.0593 (10) | −0.0055 (9) | 0.0089 (9) | −0.0219 (7) |
C1 | 0.0378 (10) | 0.0347 (9) | 0.0481 (11) | −0.0036 (8) | −0.0020 (8) | −0.0063 (8) |
C2 | 0.0452 (11) | 0.0369 (10) | 0.0475 (11) | −0.0076 (8) | 0.0004 (9) | −0.0105 (8) |
C3 | 0.0563 (13) | 0.0400 (11) | 0.0509 (12) | −0.0102 (9) | 0.0048 (10) | −0.0038 (9) |
C4 | 0.0555 (13) | 0.0572 (13) | 0.0467 (12) | −0.0055 (11) | 0.0023 (10) | −0.0085 (10) |
C5 | 0.0584 (13) | 0.0542 (13) | 0.0519 (13) | −0.0078 (11) | −0.0006 (11) | −0.0206 (10) |
C6 | 0.0528 (12) | 0.0370 (10) | 0.0610 (13) | −0.0088 (9) | −0.0024 (10) | −0.0139 (10) |
C7 | 0.0537 (12) | 0.0409 (11) | 0.0491 (12) | −0.0083 (9) | −0.0005 (10) | −0.0067 (9) |
C8 | 0.0464 (11) | 0.0455 (11) | 0.0530 (12) | −0.0008 (9) | 0.0043 (10) | 0.0027 (10) |
C9 | 0.0703 (16) | 0.0472 (13) | 0.0838 (19) | −0.0125 (12) | 0.0040 (14) | 0.0016 (12) |
C11 | 0.0435 (10) | 0.0327 (9) | 0.0396 (10) | −0.0055 (8) | −0.0058 (8) | −0.0079 (8) |
C12 | 0.0455 (11) | 0.0346 (9) | 0.0385 (10) | −0.0037 (8) | −0.0069 (8) | −0.0096 (8) |
C13 | 0.0546 (12) | 0.0329 (10) | 0.0476 (11) | −0.0077 (9) | −0.0073 (10) | −0.0026 (8) |
C14 | 0.0628 (14) | 0.0309 (10) | 0.0635 (14) | −0.0070 (9) | −0.0164 (11) | −0.0113 (9) |
C15 | 0.0617 (14) | 0.0444 (11) | 0.0527 (12) | 0.0000 (10) | −0.0101 (10) | −0.0230 (10) |
C16 | 0.0522 (12) | 0.0437 (11) | 0.0417 (10) | −0.0062 (9) | −0.0022 (9) | −0.0129 (9) |
C17 | 0.0615 (13) | 0.0379 (10) | 0.0398 (10) | −0.0119 (9) | −0.0023 (9) | −0.0110 (8) |
C18 | 0.0462 (11) | 0.0357 (10) | 0.0457 (11) | −0.0050 (8) | 0.0023 (9) | −0.0072 (8) |
C19 | 0.0759 (17) | 0.0732 (17) | 0.0450 (12) | −0.0097 (14) | 0.0031 (12) | 0.0006 (11) |
S1—C8 | 1.660 (2) | C3—H3 | 0.9300 |
S2—C8 | 1.742 (3) | C4—C5 | 1.385 (3) |
S2—C9 | 1.800 (2) | C4—H4 | 0.9300 |
S11—C18 | 1.657 (2) | C5—C6 | 1.381 (3) |
S12—C18 | 1.736 (2) | C5—H5 | 0.9300 |
S12—C19 | 1.797 (2) | C6—H6 | 0.9300 |
N1—O2 | 1.221 (3) | C7—H7 | 0.9300 |
N1—O1 | 1.225 (2) | C9—H9A | 0.9600 |
N1—C2 | 1.464 (3) | C9—H9B | 0.9600 |
N2—C7 | 1.272 (3) | C9—H9C | 0.9600 |
N2—N3 | 1.372 (2) | C11—C12 | 1.394 (3) |
N3—C8 | 1.350 (3) | C11—C16 | 1.396 (3) |
N3—H3N | 0.8600 | C11—C17 | 1.466 (3) |
N11—O11 | 1.212 (2) | C12—C13 | 1.387 (3) |
N11—O12 | 1.220 (2) | C13—C14 | 1.373 (3) |
N11—C12 | 1.461 (3) | C13—H13 | 0.9300 |
N12—C17 | 1.273 (3) | C14—C15 | 1.380 (3) |
N12—N13 | 1.371 (2) | C14—H14 | 0.9300 |
N13—C18 | 1.345 (2) | C15—C16 | 1.378 (3) |
N13—H13N | 0.8600 | C15—H15 | 0.9300 |
C1—C6 | 1.391 (3) | C16—H16 | 0.9300 |
C1—C2 | 1.403 (3) | C17—H17 | 0.9300 |
C1—C7 | 1.470 (3) | C19—H19A | 0.9600 |
C2—C3 | 1.387 (3) | C19—H19B | 0.9600 |
C3—C4 | 1.369 (3) | C19—H19C | 0.9600 |
C8—S2—C9 | 101.93 (12) | N3—C8—S2 | 113.24 (16) |
C18—S12—C19 | 101.57 (11) | S1—C8—S2 | 126.39 (13) |
O2—N1—O1 | 123.3 (2) | S2—C9—H9A | 109.5 |
O2—N1—C2 | 118.83 (19) | S2—C9—H9B | 109.5 |
O1—N1—C2 | 117.9 (2) | H9A—C9—H9B | 109.5 |
C7—N2—N3 | 115.10 (19) | S2—C9—H9C | 109.5 |
C8—N3—N2 | 120.7 (2) | H9A—C9—H9C | 109.5 |
C8—N3—H3N | 119.7 | H9B—C9—H9C | 109.5 |
N2—N3—H3N | 119.7 | C12—C11—C16 | 116.26 (17) |
O11—N11—O12 | 122.41 (19) | C12—C11—C17 | 123.88 (18) |
O11—N11—C12 | 118.20 (18) | C16—C11—C17 | 119.74 (18) |
O12—N11—C12 | 119.38 (17) | C13—C12—C11 | 123.03 (19) |
C17—N12—N13 | 115.97 (17) | C13—C12—N11 | 115.63 (18) |
C18—N13—N12 | 120.58 (17) | C11—C12—N11 | 121.34 (17) |
C18—N13—H13N | 119.7 | C14—C13—C12 | 118.95 (19) |
N12—N13—H13N | 119.7 | C14—C13—H13 | 120.5 |
C6—C1—C2 | 116.07 (19) | C12—C13—H13 | 120.5 |
C6—C1—C7 | 120.58 (18) | C13—C14—C15 | 119.60 (19) |
C2—C1—C7 | 123.24 (19) | C13—C14—H14 | 120.2 |
C3—C2—C1 | 122.61 (19) | C15—C14—H14 | 120.2 |
C3—C2—N1 | 116.12 (17) | C16—C15—C14 | 121.1 (2) |
C1—C2—N1 | 121.27 (18) | C16—C15—H15 | 119.5 |
C4—C3—C2 | 119.33 (19) | C14—C15—H15 | 119.5 |
C4—C3—H3 | 120.3 | C15—C16—C11 | 121.1 (2) |
C2—C3—H3 | 120.3 | C15—C16—H16 | 119.5 |
C3—C4—C5 | 119.7 (2) | C11—C16—H16 | 119.5 |
C3—C4—H4 | 120.1 | N12—C17—C11 | 119.89 (18) |
C5—C4—H4 | 120.1 | N12—C17—H17 | 120.1 |
C6—C5—C4 | 120.4 (2) | C11—C17—H17 | 120.1 |
C6—C5—H5 | 119.8 | N13—C18—S11 | 120.14 (16) |
C4—C5—H5 | 119.8 | N13—C18—S12 | 113.32 (14) |
C5—C6—C1 | 121.75 (19) | S11—C18—S12 | 126.54 (12) |
C5—C6—H6 | 119.1 | S12—C19—H19A | 109.5 |
C1—C6—H6 | 119.1 | S12—C19—H19B | 109.5 |
N2—C7—C1 | 119.6 (2) | H19A—C19—H19B | 109.5 |
N2—C7—H7 | 120.2 | S12—C19—H19C | 109.5 |
C1—C7—H7 | 120.2 | H19A—C19—H19C | 109.5 |
N3—C8—S1 | 120.37 (19) | H19B—C19—H19C | 109.5 |
D—H···A | D—H | H···A | D···A | D—H···A |
N13—H13N···O11i | 0.86 | 2.16 | 3.014 (3) | 174 |
C17—H17···O12i | 0.93 | 2.55 | 3.373 (3) | 148 |
Symmetry code: (i) −x+1, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C9H9N3O2S2 |
Mr | 255.31 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 291 |
a, b, c (Å) | 7.5261 (12), 10.7128 (16), 14.5343 (17) |
α, β, γ (°) | 78.588 (6), 87.095 (5), 84.612 (6) |
V (Å3) | 1143.0 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.45 |
Crystal size (mm) | 0.36 × 0.30 × 0.16 |
Data collection | |
Diffractometer | Rigaku R-AXIS RAPID IP |
Absorption correction | Multi-scan (ABSCOR; Higashi, 1995) |
Tmin, Tmax | 0.795, 0.930 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 11206, 5127, 3773 |
Rint | 0.024 |
(sin θ/λ)max (Å−1) | 0.648 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.041, 0.116, 1.10 |
No. of reflections | 5127 |
No. of parameters | 291 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.32, −0.31 |
Computer programs: PROCESS-AUTO (Rigaku, 1998), CrystalStructure (Rigaku/MSC, 2002), SIR92 (Altomare et al., 1993), SHELXL97 (Sheldrick, 1997), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999).
N2—C7 | 1.272 (3) | N12—C17 | 1.273 (3) |
N2—N3 | 1.372 (2) | N12—N13 | 1.371 (2) |
N3—C8 | 1.350 (3) | N13—C18 | 1.345 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
N13—H13N···O11i | 0.86 | 2.16 | 3.014 (3) | 174 |
C17—H17···O12i | 0.93 | 2.55 | 3.373 (3) | 148 |
Symmetry code: (i) −x+1, −y+1, −z+1. |
Acknowledgements
This project was supported by the Natural Science Foundation of Zhejiang Province of China (grant No. M203027).
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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.
Hydrazone and its derivatives have attracted our much attention because of their application in biological field (Okabe et al., 1993). As part of our ongoing investigation on anti-cancer compounds (Hu et al., 2001), the title compound has been prepared and its structure is presented here.
The asymmetric unit of the title compound contains two crystallographic independent molecules, A (C1-containing molecule) and B (C11-containing molecule), with the similar structure (Fig. 1). In the two molecules, the nitro groups are tilted with respect to the connected benzene rings by dihedral angles of 31.96 (11) and 33.96 (11)°, respectively; while dithiocarbazate moieties are nearly co-planar with the benzene rings, dihedral angles being 3.00 (6) and 4.03 (6)°, respectively. The centro-symmetry related B molecules are linked by N—H···O hydrogen bonding to form the supramolecular dimer (Table 2). Whereas the A molecules are not involved in hydrogen bonding in the crystal structure. The N2?C7 and N12?C17 bond distances (Table 1) indicate the typical N?C double bonds. Around the N?C double bonds, both molecules A and B exhibit the E configuration, similar to those found in related compounds (Chen et al., 2007; Shan & Zhang, 2006; Zhang et al., 2005).