organic compounds
(E)-1-(2-Nitrobenzylidene)-4-phenylthiosemicarbazide
aDrug Design and Bioinformatics Unit, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute, Tehran Iran13164, bDepartment of Life Science Engineering, Faculty of New Science and Technology, University of Tehran, Tehran, Iran, and cDepartment of Chemistry, Shahid Beheshti University, G. C., Evin, Tehran, 1983963113, Iran
*Correspondence e-mail: ssardari@hotmail.com
In the title molecule, C14H12N4O2S, the conformation about the imine bond is trans. The dihedral angle between the two rings is 88.22 (11)°. An intramolecular N—H⋯N contact occurs. The features N—H⋯S and C—H⋯O hydrogen bonds.
Related literature
For background to thiosemicarbazone derivatives, see: Shaabani et al. (2011); Sardari et al. (1999). For applications of imine bonds in synthesis, see: Plech et al. (2011); Tada et al. (2011); Sriram et al. (2007). For related structures, see: Jian & Li (2006a,b); Fang et al. (2007).
Experimental
Crystal data
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Refinement
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Data collection: X-AREA (Stoe & Cie, 2005); cell X-AREA; data reduction: X-AREA; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); 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/S1600536812026803/bt5899sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536812026803/bt5899Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536812026803/bt5899Isup3.cml
To a magnetically stirred solution of 4-phenylthiosemicarbazide (0.167 g, 1.0 mmol) in MeOH (30 ml) in round bottom flask was added a solution of 2-nitrobenzaldehyde (0.151 g, 1 mmol) at room temperature. The mixture was stirred for 48 h. After completion of the reaction, the Precipitate product was filtered and washed with MeOH (20 ml) and dried at room temperature. The final product is a yellow solid (yield 70%).
The hydrogen atom attached to nitrogen atoms and C—H of imine moiety were found in difference Fourier map and refined isotropically without restraint. Aromatic C—H protons were positioned geometrically and refined as riding atoms with C—H = 0.93 Å and Uiso(H) = 1.2 Ueq(C).
Thiosemicarbazone derivatives are of special importance because of their versatile biological and pharmacological activities. Thiosemicarbazides are potent intermediates for the synthesis of pharmaceutical and bioactive materials and thus, they are used extensively in the field of medicinal chemistry. The imine bond (–N=CH–) in this compounds are useful intermediates in organic synthesis, in particular for the preparation of heterocycles and non-natural β-aminoacids (Plech et al., 2011; Tada et al., 2011; Sriram et al., 2007).
In a continuation of our research on the development of synthetic methods in heterocyclic chemistry (Shaabani et al., 2011; Sardari et al., 1999) here we report the synthesis and structure of the title compound.
The
of the title compound is shown in Fig. 1. In the title molecule, the configuration is trans about the imine bond (C=N). Bond lengths and angles are in the normal ranges reported for similar structures (Jian and Li (2006a,b); Fang et al. (2007)). The dihedral angle between the two phenyl ring is 88.22 (11)°. The exhibits intermolecular N—H···S and C—H···O hydrogen bonds and also intramolecular N—H···O and C—H···N hydrogen bonds (Fig. 2 & Table 1).For background to thiosemicarbazone derivatives, see: Shaabani et al. (2011); Sardari et al. (1999). For applications of imine bonds in synthesis, see: Plech et al. (2011); Tada et al. (2011); Sriram et al. (2007). For related structures, see: Jian & Li (2006a,b); Fang et al. (2007).
Data collection: X-AREA (Stoe & Cie, 2005); cell
X-AREA (Stoe & Cie, 2005); data reduction: X-AREA (Stoe & Cie, 2005); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).C14H12N4O2S | Z = 2 |
Mr = 300.35 | F(000) = 312 |
Triclinic, P1 | Dx = 1.395 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 7.4050 (7) Å | Cell parameters from 7967 reflections |
b = 8.4239 (8) Å | θ = 2.6–29.2° |
c = 12.2363 (10) Å | µ = 0.24 mm−1 |
α = 90.382 (7)° | T = 298 K |
β = 93.974 (7)° | Prism, yellow |
γ = 110.004 (8)° | 0.38 × 0.35 × 0.32 mm |
V = 715.14 (12) Å3 |
Stoe IPDS II diffractometer | 3832 independent reflections |
Radiation source: fine-focus sealed tube | 2715 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.043 |
Detector resolution: 0.15 mm pixels mm-1 | θmax = 29.2°, θmin = 2.6° |
rotation method scans | h = −10→10 |
Absorption correction: numerical (X-RED and X-SHAPE; Stoe & Cie (2005) | k = −11→10 |
Tmin = 0.910, Tmax = 0.930 | l = −15→16 |
7967 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) = 0.128 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0528P)2 + 0.223P] where P = (Fo2 + 2Fc2)/3 |
3832 reflections | (Δ/σ)max = 0.005 |
202 parameters | Δρmax = 0.26 e Å−3 |
0 restraints | Δρmin = −0.23 e Å−3 |
C14H12N4O2S | γ = 110.004 (8)° |
Mr = 300.35 | V = 715.14 (12) Å3 |
Triclinic, P1 | Z = 2 |
a = 7.4050 (7) Å | Mo Kα radiation |
b = 8.4239 (8) Å | µ = 0.24 mm−1 |
c = 12.2363 (10) Å | T = 298 K |
α = 90.382 (7)° | 0.38 × 0.35 × 0.32 mm |
β = 93.974 (7)° |
Stoe IPDS II diffractometer | 3832 independent reflections |
Absorption correction: numerical (X-RED and X-SHAPE; Stoe & Cie (2005) | 2715 reflections with I > 2σ(I) |
Tmin = 0.910, Tmax = 0.930 | Rint = 0.043 |
7967 measured reflections |
R[F2 > 2σ(F2)] = 0.053 | 0 restraints |
wR(F2) = 0.128 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | Δρmax = 0.26 e Å−3 |
3832 reflections | Δρmin = −0.23 e Å−3 |
202 parameters |
Experimental. shape of crystal determined optically |
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 | ||
C1 | 0.2544 (3) | 0.5115 (3) | 0.51143 (14) | 0.0381 (4) | |
C2 | 0.2249 (3) | 0.5628 (3) | 0.40645 (15) | 0.0509 (5) | |
H2 | 0.2076 | 0.4892 | 0.3465 | 0.061* | |
C3 | 0.2213 (4) | 0.7226 (3) | 0.39147 (18) | 0.0609 (6) | |
H3 | 0.2007 | 0.7575 | 0.3212 | 0.073* | |
C4 | 0.2482 (4) | 0.8319 (3) | 0.48040 (19) | 0.0597 (6) | |
H4 | 0.2457 | 0.9404 | 0.4700 | 0.072* | |
C5 | 0.2790 (3) | 0.7805 (3) | 0.58510 (17) | 0.0479 (5) | |
H5 | 0.2977 | 0.8559 | 0.6442 | 0.057* | |
C6 | 0.2826 (3) | 0.6186 (2) | 0.60429 (14) | 0.0366 (4) | |
C7 | 0.3227 (3) | 0.5732 (3) | 0.71685 (14) | 0.0406 (4) | |
H7 | 0.388 (3) | 0.492 (3) | 0.7285 (18) | 0.052 (6)* | |
C8 | 0.2886 (3) | 0.6664 (2) | 0.99057 (14) | 0.0372 (4) | |
C9 | 0.1339 (3) | 0.8556 (2) | 1.06241 (14) | 0.0375 (4) | |
C10 | 0.2729 (3) | 0.9819 (3) | 1.12422 (16) | 0.0469 (5) | |
H10 | 0.4023 | 1.0094 | 1.1118 | 0.056* | |
C11 | 0.2178 (4) | 1.0678 (3) | 1.20523 (17) | 0.0530 (5) | |
H11 | 0.3108 | 1.1530 | 1.2475 | 0.064* | |
C12 | 0.0278 (4) | 1.0282 (3) | 1.22337 (17) | 0.0517 (5) | |
H12 | −0.0080 | 1.0859 | 1.2782 | 0.062* | |
C13 | −0.1108 (3) | 0.9032 (3) | 1.16084 (18) | 0.0514 (5) | |
H13 | −0.2402 | 0.8768 | 1.1732 | 0.062* | |
C14 | −0.0578 (3) | 0.8164 (3) | 1.07917 (16) | 0.0441 (5) | |
H14 | −0.1512 | 0.7325 | 1.0362 | 0.053* | |
O1 | 0.2599 (4) | 0.2612 (3) | 0.43801 (14) | 0.0824 (6) | |
O2 | 0.2395 (4) | 0.2728 (2) | 0.60884 (14) | 0.0829 (6) | |
N1 | 0.2507 (3) | 0.3363 (2) | 0.52080 (13) | 0.0453 (4) | |
N2 | 0.2793 (2) | 0.6465 (2) | 0.79714 (12) | 0.0395 (4) | |
N3 | 0.3341 (3) | 0.6036 (2) | 0.89882 (12) | 0.0433 (4) | |
H3B | 0.411 (3) | 0.546 (3) | 0.9056 (18) | 0.042 (6)* | |
N4 | 0.1877 (3) | 0.7690 (2) | 0.97626 (13) | 0.0469 (4) | |
H4B | 0.150 (3) | 0.782 (3) | 0.916 (2) | 0.053 (7)* | |
S1 | 0.35639 (10) | 0.60896 (8) | 1.11356 (4) | 0.05372 (19) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0429 (10) | 0.0444 (11) | 0.0292 (8) | 0.0173 (9) | 0.0053 (7) | −0.0006 (7) |
C2 | 0.0620 (14) | 0.0657 (15) | 0.0267 (8) | 0.0237 (12) | 0.0059 (8) | 0.0002 (9) |
C3 | 0.0796 (17) | 0.0730 (17) | 0.0355 (10) | 0.0323 (14) | 0.0075 (10) | 0.0168 (10) |
C4 | 0.0784 (17) | 0.0517 (13) | 0.0568 (13) | 0.0310 (13) | 0.0111 (12) | 0.0180 (11) |
C5 | 0.0622 (14) | 0.0456 (12) | 0.0411 (10) | 0.0246 (11) | 0.0072 (9) | 0.0003 (9) |
C6 | 0.0413 (10) | 0.0440 (10) | 0.0278 (8) | 0.0185 (9) | 0.0049 (7) | −0.0004 (7) |
C7 | 0.0536 (12) | 0.0448 (11) | 0.0295 (8) | 0.0255 (10) | −0.0008 (8) | −0.0045 (7) |
C8 | 0.0494 (11) | 0.0370 (10) | 0.0281 (8) | 0.0190 (9) | 0.0010 (7) | −0.0027 (7) |
C9 | 0.0547 (12) | 0.0367 (10) | 0.0281 (8) | 0.0247 (9) | 0.0037 (7) | 0.0017 (7) |
C10 | 0.0467 (12) | 0.0527 (13) | 0.0433 (10) | 0.0194 (10) | 0.0061 (9) | −0.0046 (9) |
C11 | 0.0640 (15) | 0.0501 (13) | 0.0444 (11) | 0.0199 (11) | 0.0005 (10) | −0.0139 (9) |
C12 | 0.0698 (15) | 0.0571 (13) | 0.0395 (10) | 0.0352 (12) | 0.0114 (10) | −0.0032 (9) |
C13 | 0.0521 (13) | 0.0590 (14) | 0.0493 (11) | 0.0248 (11) | 0.0152 (10) | 0.0095 (10) |
C14 | 0.0541 (12) | 0.0363 (10) | 0.0407 (10) | 0.0147 (9) | 0.0008 (9) | 0.0021 (8) |
O1 | 0.1373 (19) | 0.0725 (12) | 0.0507 (10) | 0.0532 (13) | 0.0082 (10) | −0.0205 (9) |
O2 | 0.155 (2) | 0.0529 (11) | 0.0455 (9) | 0.0410 (12) | 0.0083 (11) | 0.0041 (8) |
N1 | 0.0516 (10) | 0.0481 (10) | 0.0377 (8) | 0.0193 (8) | 0.0037 (7) | −0.0076 (7) |
N2 | 0.0534 (10) | 0.0419 (9) | 0.0275 (7) | 0.0222 (8) | 0.0021 (6) | −0.0007 (6) |
N3 | 0.0664 (12) | 0.0493 (10) | 0.0259 (7) | 0.0359 (10) | −0.0009 (7) | −0.0034 (6) |
N4 | 0.0751 (13) | 0.0546 (11) | 0.0257 (7) | 0.0425 (10) | −0.0017 (7) | −0.0034 (7) |
S1 | 0.0844 (4) | 0.0706 (4) | 0.0259 (2) | 0.0526 (3) | 0.0011 (2) | 0.0008 (2) |
C1—C2 | 1.385 (3) | C9—C14 | 1.374 (3) |
C1—C6 | 1.405 (2) | C9—C10 | 1.377 (3) |
C1—N1 | 1.472 (3) | C9—N4 | 1.432 (2) |
C2—C3 | 1.369 (3) | C10—C11 | 1.386 (3) |
C2—H2 | 0.9300 | C10—H10 | 0.9300 |
C3—C4 | 1.379 (3) | C11—C12 | 1.365 (3) |
C3—H3 | 0.9300 | C11—H11 | 0.9300 |
C4—C5 | 1.384 (3) | C12—C13 | 1.374 (3) |
C4—H4 | 0.9300 | C12—H12 | 0.9300 |
C5—C6 | 1.394 (3) | C13—C14 | 1.389 (3) |
C5—H5 | 0.9300 | C13—H13 | 0.9300 |
C6—C7 | 1.470 (2) | C14—H14 | 0.9300 |
C7—N2 | 1.273 (2) | O1—N1 | 1.209 (2) |
C7—H7 | 0.97 (2) | O2—N1 | 1.202 (2) |
C8—N4 | 1.327 (2) | N2—N3 | 1.371 (2) |
C8—N3 | 1.349 (2) | N3—H3B | 0.87 (2) |
C8—S1 | 1.6799 (18) | N4—H4B | 0.79 (3) |
C2—C1—C6 | 122.28 (19) | C10—C9—N4 | 120.05 (19) |
C2—C1—N1 | 116.16 (17) | C9—C10—C11 | 119.3 (2) |
C6—C1—N1 | 121.55 (16) | C9—C10—H10 | 120.4 |
C3—C2—C1 | 119.5 (2) | C11—C10—H10 | 120.4 |
C3—C2—H2 | 120.2 | C12—C11—C10 | 120.4 (2) |
C1—C2—H2 | 120.2 | C12—C11—H11 | 119.8 |
C2—C3—C4 | 120.11 (19) | C10—C11—H11 | 119.8 |
C2—C3—H3 | 119.9 | C11—C12—C13 | 120.19 (19) |
C4—C3—H3 | 119.9 | C11—C12—H12 | 119.9 |
C3—C4—C5 | 120.2 (2) | C13—C12—H12 | 119.9 |
C3—C4—H4 | 119.9 | C12—C13—C14 | 120.0 (2) |
C5—C4—H4 | 119.9 | C12—C13—H13 | 120.0 |
C4—C5—C6 | 121.7 (2) | C14—C13—H13 | 120.0 |
C4—C5—H5 | 119.1 | C9—C14—C13 | 119.4 (2) |
C6—C5—H5 | 119.1 | C9—C14—H14 | 120.3 |
C5—C6—C1 | 116.22 (17) | C13—C14—H14 | 120.3 |
C5—C6—C7 | 119.24 (17) | O2—N1—O1 | 122.1 (2) |
C1—C6—C7 | 124.48 (17) | O2—N1—C1 | 119.95 (16) |
N2—C7—C6 | 119.59 (17) | O1—N1—C1 | 117.90 (18) |
N2—C7—H7 | 121.3 (13) | C7—N2—N3 | 115.10 (15) |
C6—C7—H7 | 119.1 (13) | C8—N3—N2 | 120.88 (16) |
N4—C8—N3 | 116.38 (16) | C8—N3—H3B | 118.3 (14) |
N4—C8—S1 | 124.22 (13) | N2—N3—H3B | 120.3 (14) |
N3—C8—S1 | 119.39 (14) | C8—N4—C9 | 125.10 (16) |
C14—C9—C10 | 120.63 (17) | C8—N4—H4B | 118.8 (17) |
C14—C9—N4 | 119.25 (19) | C9—N4—H4B | 116.1 (17) |
C6—C1—C2—C3 | −0.5 (3) | C11—C12—C13—C14 | 0.2 (3) |
N1—C1—C2—C3 | 178.3 (2) | C10—C9—C14—C13 | −1.3 (3) |
C1—C2—C3—C4 | 0.4 (4) | N4—C9—C14—C13 | −178.36 (18) |
C2—C3—C4—C5 | 0.0 (4) | C12—C13—C14—C9 | 0.6 (3) |
C3—C4—C5—C6 | −0.4 (4) | C2—C1—N1—O2 | −166.3 (2) |
C4—C5—C6—C1 | 0.4 (3) | C6—C1—N1—O2 | 12.5 (3) |
C4—C5—C6—C7 | 177.9 (2) | C2—C1—N1—O1 | 14.0 (3) |
C2—C1—C6—C5 | 0.1 (3) | C6—C1—N1—O1 | −167.2 (2) |
N1—C1—C6—C5 | −178.62 (18) | C6—C7—N2—N3 | −175.80 (18) |
C2—C1—C6—C7 | −177.3 (2) | N4—C8—N3—N2 | 0.6 (3) |
N1—C1—C6—C7 | 4.0 (3) | S1—C8—N3—N2 | 179.32 (15) |
C5—C6—C7—N2 | 27.7 (3) | C7—N2—N3—C8 | −176.8 (2) |
C1—C6—C7—N2 | −155.0 (2) | N3—C8—N4—C9 | −176.5 (2) |
C14—C9—C10—C11 | 1.1 (3) | S1—C8—N4—C9 | 4.9 (3) |
N4—C9—C10—C11 | 178.15 (19) | C14—C9—N4—C8 | −115.2 (2) |
C9—C10—C11—C12 | −0.2 (3) | C10—C9—N4—C8 | 67.7 (3) |
C10—C11—C12—C13 | −0.4 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3B···S1i | 0.87 (2) | 2.51 (2) | 3.3664 (18) | 168.8 (19) |
N4—H4B···N2 | 0.79 (3) | 2.29 (2) | 2.642 (2) | 108 (2) |
C7—H7···O2 | 0.97 (2) | 2.26 (2) | 2.703 (3) | 106.5 (16) |
C11—H11···O1ii | 0.93 | 2.60 | 3.214 (3) | 125 |
Symmetry codes: (i) −x+1, −y+1, −z+2; (ii) x, y+1, z+1. |
Experimental details
Crystal data | |
Chemical formula | C14H12N4O2S |
Mr | 300.35 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 298 |
a, b, c (Å) | 7.4050 (7), 8.4239 (8), 12.2363 (10) |
α, β, γ (°) | 90.382 (7), 93.974 (7), 110.004 (8) |
V (Å3) | 715.14 (12) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.24 |
Crystal size (mm) | 0.38 × 0.35 × 0.32 |
Data collection | |
Diffractometer | Stoe IPDS II |
Absorption correction | Numerical (X-RED and X-SHAPE; Stoe & Cie (2005) |
Tmin, Tmax | 0.910, 0.930 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7967, 3832, 2715 |
Rint | 0.043 |
(sin θ/λ)max (Å−1) | 0.686 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.053, 0.128, 1.03 |
No. of reflections | 3832 |
No. of parameters | 202 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.26, −0.23 |
Computer programs: X-AREA (Stoe & Cie, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3B···S1i | 0.87 (2) | 2.51 (2) | 3.3664 (18) | 168.8 (19) |
N4—H4B···N2 | 0.79 (3) | 2.29 (2) | 2.642 (2) | 108 (2) |
C11—H11···O1ii | 0.93 | 2.60 | 3.214 (3) | 124.5 |
Symmetry codes: (i) −x+1, −y+1, −z+2; (ii) x, y+1, z+1. |
Acknowledgements
We gratefully acknowledge the Pasteur Institute for grant No. 456.
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Thiosemicarbazone derivatives are of special importance because of their versatile biological and pharmacological activities. Thiosemicarbazides are potent intermediates for the synthesis of pharmaceutical and bioactive materials and thus, they are used extensively in the field of medicinal chemistry. The imine bond (–N=CH–) in this compounds are useful intermediates in organic synthesis, in particular for the preparation of heterocycles and non-natural β-aminoacids (Plech et al., 2011; Tada et al., 2011; Sriram et al., 2007).
In a continuation of our research on the development of synthetic methods in heterocyclic chemistry (Shaabani et al., 2011; Sardari et al., 1999) here we report the synthesis and structure of the title compound.
The asymmetric unit of the title compound is shown in Fig. 1. In the title molecule, the configuration is trans about the imine bond (C=N). Bond lengths and angles are in the normal ranges reported for similar structures (Jian and Li (2006a,b); Fang et al. (2007)). The dihedral angle between the two phenyl ring is 88.22 (11)°. The crystal structure exhibits intermolecular N—H···S and C—H···O hydrogen bonds and also intramolecular N—H···O and C—H···N hydrogen bonds (Fig. 2 & Table 1).