organic compounds
4-Anilino-3-nitrobenzonitrile
aSchool of Pharmaceutical and Chemical Engineering, Taizhou University, Linhai 317000, People's Republic of China, and bAgronomy Department, Jiangsu Polytechnic College of Agriculture and Forestry, Jurong 212400 Jiangsu, People's Republic of China
*Correspondence e-mail: yutaitang@hotmail.com
In the title compound, C13H9N3O2, the aromatic rings are twisted with respect to each other, making a dihedral angle of 49.41 (9)°. The nitro group and the nitrile group are nearly in the plane of the benzonitrile ring, the largest deviation from the plane being 0.123 (1) Å. There is an intramolecular N—H⋯O hydrogen bond forming an S(6) ring. Weak intermolecular C—H⋯O hydrogen bonds link the molecules into a chain parallel to the c axis. Futhermore, slipped π–π interactions between symmetry-related phenyl rings [centroid–centroid distance 3.808 (1) Å, interplanar distance 3.544 (8) Å with an offset of 21.5°] stabilize the structure.
Related literature
For the synthesis of the title compound, see: Schelz & Inst (1978). For related structures, see: McWilliam et al. (2001); Li, Liu et al. (2009); Li, Wu et al. (2009). For discussion of hydrogen bonding, see: Etter et al. (1990); Bernstein et al. (1995).
Experimental
Crystal data
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Refinement
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Data collection: CAD-4 Software (Enraf–Nonius, 1989); cell CAD-4 Software; data reduction: XCAD4 (Harms & Wocadlo, 1995); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEPIII (Burnett & Johnson, 1996), ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536810043862/dn2613sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810043862/dn2613Isup2.hkl
4-chloro-3-nitrobenzonitrile (4.0 g, 0.022 mol)was heat in 10 ml fresh distilled aniline for 18 h at 403 K. After reaction completed (TLC control) was added 50 ml e thanol, at room temperature. The brown precipitate was sucked, washed with cold ethanol(2*15 ml), dried over sodium sulfateand gave 3.3 g(63%) (Schelz & Inst,1978). Pure compound (I) was obstained by crystallizing from ethanol. Crystals of (I) suitable for X-ray diffraction were obstained by slow evaporation of an ethanol solution.
H atoms were positioned geometrically, with C—H = 0.93 Å for aromatic H, and constrained to ride on their parent atoms, with Uiso(H) = 1.2Ueq(C).
The molecule of the title compound is non planar, the two phenyl rings make a dihedral angle of 49.41 (9)°. The nitro and nitrile groups are nearly in the plane of the C7–C12 phenyl ring with the largest deviation being 0.123 (1) Å at O2 (Fig. 1). Bond lengths and bond angles agree with related structures recently reported (Li, Liu et al., 2009; Li, Wu et al., 2009; McWilliam et al., 2001)
There is an intramolecular N-H···O hydrogen bond forming S(6) ring (Etter et al., 1990; Bernstein et al., 1995). A weak intermolecular C-H···O interactions link the molecule into a chain parallel to the c axis (Table 1, Fig. 2). Futhermore sliipest π-π interaction between symmetry related phenyl rings (symmetry code: (i) x,3/2-y,1/2+z) stabilize the structure (centroid to centroid 3.808 (1)Å, interplanar distance 3.544 (8)Å with an offset of 21.5° .
For the synthesis of the title compound, see: Schelz & Inst (1978). For related structures, see: McWilliam et al. (2001); Li, Liu et al. (2009); Li, Wu et al. (2009). For discussion of hydrogen bonding, see: Etter et al. (1990); Bernstein et al. (1995).
Data collection: CAD-4 Software (Enraf–Nonius, 1989); cell
CAD-4 Software (Enraf–Nonius, 1989); data reduction: XCAD4 (Harms & Wocadlo, 1995); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEPIII (Burnett & Johnson, 1996), ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).C13H9N3O2 | F(000) = 496 |
Mr = 239.23 | Dx = 1.381 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 25 reflections |
a = 14.066 (3) Å | θ = 9–13° |
b = 7.4290 (15) Å | µ = 0.10 mm−1 |
c = 11.652 (2) Å | T = 293 K |
β = 109.04 (3)° | Block, colourless |
V = 1151.0 (4) Å3 | 0.30 × 0.30 × 0.10 mm |
Z = 4 |
Enraf–Nonius CAD-4 diffractometer | 1546 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.030 |
Graphite monochromator | θmax = 25.3°, θmin = 1.5° |
ω/2θ scans | h = −16→15 |
Absorption correction: ψ scan (North et al., 1968) | k = −8→8 |
Tmin = 0.972, Tmax = 0.990 | l = 0→13 |
4199 measured reflections | 3 standard reflections every 200 reflections |
2082 independent reflections | intensity decay: 1% |
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)] = 0.040 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.107 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0511P)2 + 0.1451P] where P = (Fo2 + 2Fc2)/3 |
2082 reflections | (Δ/σ)max < 0.001 |
163 parameters | Δρmax = 0.19 e Å−3 |
0 restraints | Δρmin = −0.16 e Å−3 |
C13H9N3O2 | V = 1151.0 (4) Å3 |
Mr = 239.23 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 14.066 (3) Å | µ = 0.10 mm−1 |
b = 7.4290 (15) Å | T = 293 K |
c = 11.652 (2) Å | 0.30 × 0.30 × 0.10 mm |
β = 109.04 (3)° |
Enraf–Nonius CAD-4 diffractometer | 1546 reflections with I > 2σ(I) |
Absorption correction: ψ scan (North et al., 1968) | Rint = 0.030 |
Tmin = 0.972, Tmax = 0.990 | 3 standard reflections every 200 reflections |
4199 measured reflections | intensity decay: 1% |
2082 independent reflections |
R[F2 > 2σ(F2)] = 0.040 | 0 restraints |
wR(F2) = 0.107 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.19 e Å−3 |
2082 reflections | Δρmin = −0.16 e Å−3 |
163 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 | ||
O1 | 0.91767 (8) | 0.4271 (2) | 0.39718 (10) | 0.0665 (4) | |
O2 | 0.84253 (9) | 0.43363 (19) | 0.20463 (10) | 0.0659 (4) | |
N1 | 0.82164 (10) | 0.5168 (2) | 0.54802 (11) | 0.0545 (4) | |
H1 | 0.8774 | 0.4845 | 0.5388 | 0.065* | |
N2 | 0.84229 (10) | 0.45587 (19) | 0.30832 (11) | 0.0485 (4) | |
N3 | 0.43509 (11) | 0.6904 (2) | 0.03546 (14) | 0.0699 (5) | |
C1 | 0.74708 (13) | 0.4539 (2) | 0.70743 (15) | 0.0570 (5) | |
H1B | 0.6921 | 0.3979 | 0.6517 | 0.068* | |
C2 | 0.75504 (15) | 0.4625 (3) | 0.82822 (17) | 0.0669 (5) | |
H2A | 0.7042 | 0.4143 | 0.8535 | 0.080* | |
C3 | 0.83667 (16) | 0.5411 (3) | 0.91186 (16) | 0.0695 (6) | |
H3A | 0.8414 | 0.5451 | 0.9933 | 0.083* | |
C4 | 0.91129 (15) | 0.6136 (3) | 0.87473 (16) | 0.0656 (5) | |
H4A | 0.9671 | 0.6659 | 0.9314 | 0.079* | |
C5 | 0.90432 (12) | 0.6097 (3) | 0.75389 (14) | 0.0537 (4) | |
H5A | 0.9548 | 0.6605 | 0.7290 | 0.064* | |
C6 | 0.82202 (11) | 0.5299 (2) | 0.67003 (13) | 0.0463 (4) | |
C7 | 0.74482 (11) | 0.5487 (2) | 0.44502 (13) | 0.0438 (4) | |
C8 | 0.65218 (12) | 0.6207 (2) | 0.44808 (14) | 0.0489 (4) | |
H8A | 0.6447 | 0.6444 | 0.5230 | 0.059* | |
C9 | 0.57426 (12) | 0.6561 (2) | 0.34586 (14) | 0.0506 (4) | |
H9A | 0.5150 | 0.7039 | 0.3520 | 0.061* | |
C10 | 0.58206 (11) | 0.6214 (2) | 0.23110 (14) | 0.0461 (4) | |
C11 | 0.67092 (11) | 0.5533 (2) | 0.22313 (13) | 0.0455 (4) | |
H11A | 0.6771 | 0.5300 | 0.1474 | 0.055* | |
C12 | 0.75095 (11) | 0.5196 (2) | 0.32739 (13) | 0.0432 (4) | |
C13 | 0.49993 (12) | 0.6596 (2) | 0.12224 (15) | 0.0524 (4) |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0436 (7) | 0.1033 (11) | 0.0496 (7) | 0.0174 (7) | 0.0112 (5) | −0.0019 (6) |
O2 | 0.0553 (7) | 0.1003 (11) | 0.0471 (7) | 0.0071 (7) | 0.0237 (6) | −0.0053 (6) |
N1 | 0.0437 (7) | 0.0796 (11) | 0.0403 (7) | 0.0117 (7) | 0.0140 (6) | 0.0013 (7) |
N2 | 0.0431 (7) | 0.0617 (9) | 0.0421 (7) | 0.0019 (7) | 0.0157 (6) | −0.0028 (6) |
N3 | 0.0545 (9) | 0.0920 (13) | 0.0557 (9) | 0.0140 (9) | 0.0076 (8) | 0.0037 (9) |
C1 | 0.0556 (10) | 0.0621 (11) | 0.0535 (10) | −0.0002 (9) | 0.0182 (8) | 0.0053 (9) |
C2 | 0.0700 (12) | 0.0752 (13) | 0.0661 (12) | 0.0131 (11) | 0.0369 (10) | 0.0185 (10) |
C3 | 0.0884 (15) | 0.0803 (14) | 0.0438 (10) | 0.0311 (12) | 0.0268 (10) | 0.0111 (9) |
C4 | 0.0634 (11) | 0.0753 (13) | 0.0466 (10) | 0.0174 (10) | 0.0022 (9) | −0.0035 (9) |
C5 | 0.0428 (9) | 0.0686 (11) | 0.0476 (9) | 0.0092 (8) | 0.0120 (7) | 0.0026 (8) |
C6 | 0.0449 (8) | 0.0540 (10) | 0.0394 (8) | 0.0119 (8) | 0.0130 (7) | 0.0038 (7) |
C7 | 0.0430 (8) | 0.0468 (9) | 0.0418 (8) | −0.0007 (7) | 0.0140 (7) | −0.0001 (7) |
C8 | 0.0485 (9) | 0.0578 (10) | 0.0431 (9) | 0.0042 (8) | 0.0189 (7) | −0.0009 (8) |
C9 | 0.0431 (9) | 0.0561 (10) | 0.0543 (10) | 0.0058 (8) | 0.0181 (8) | 0.0022 (8) |
C10 | 0.0395 (8) | 0.0509 (10) | 0.0450 (9) | −0.0007 (7) | 0.0102 (7) | 0.0020 (7) |
C11 | 0.0461 (9) | 0.0509 (10) | 0.0394 (8) | −0.0027 (7) | 0.0140 (7) | −0.0013 (7) |
C12 | 0.0389 (8) | 0.0472 (9) | 0.0442 (8) | 0.0013 (7) | 0.0144 (7) | −0.0013 (7) |
C13 | 0.0449 (9) | 0.0615 (11) | 0.0502 (9) | 0.0041 (8) | 0.0148 (8) | 0.0021 (8) |
O1—N2 | 1.2352 (16) | C4—C5 | 1.379 (2) |
O2—N2 | 1.2206 (16) | C4—H4A | 0.9300 |
N1—C7 | 1.3483 (18) | C5—C6 | 1.382 (2) |
N1—C6 | 1.4232 (19) | C5—H5A | 0.9300 |
N1—H1 | 0.8600 | C7—C12 | 1.418 (2) |
N2—C12 | 1.4529 (19) | C7—C8 | 1.420 (2) |
N3—C13 | 1.142 (2) | C8—C9 | 1.356 (2) |
C1—C2 | 1.377 (2) | C8—H8A | 0.9300 |
C1—C6 | 1.385 (2) | C9—C10 | 1.401 (2) |
C1—H1B | 0.9300 | C9—H9A | 0.9300 |
C2—C3 | 1.371 (3) | C10—C11 | 1.379 (2) |
C2—H2A | 0.9300 | C10—C13 | 1.438 (2) |
C3—C4 | 1.369 (3) | C11—C12 | 1.383 (2) |
C3—H3A | 0.9300 | C11—H11A | 0.9300 |
C7—N1—C6 | 128.16 (14) | C5—C6—N1 | 117.71 (15) |
C7—N1—H1 | 115.9 | C1—C6—N1 | 122.08 (15) |
C6—N1—H1 | 115.9 | N1—C7—C12 | 123.37 (14) |
O2—N2—O1 | 121.83 (13) | N1—C7—C8 | 121.29 (14) |
O2—N2—C12 | 118.93 (13) | C12—C7—C8 | 115.30 (14) |
O1—N2—C12 | 119.24 (13) | C9—C8—C7 | 122.46 (15) |
C2—C1—C6 | 119.09 (17) | C9—C8—H8A | 118.8 |
C2—C1—H1B | 120.5 | C7—C8—H8A | 118.8 |
C6—C1—H1B | 120.5 | C8—C9—C10 | 120.70 (15) |
C3—C2—C1 | 121.11 (18) | C8—C9—H9A | 119.7 |
C3—C2—H2A | 119.4 | C10—C9—H9A | 119.7 |
C1—C2—H2A | 119.4 | C11—C10—C9 | 119.11 (14) |
C4—C3—C2 | 119.57 (17) | C11—C10—C13 | 119.86 (15) |
C4—C3—H3A | 120.2 | C9—C10—C13 | 121.01 (15) |
C2—C3—H3A | 120.2 | C10—C11—C12 | 120.19 (15) |
C3—C4—C5 | 120.51 (18) | C10—C11—H11A | 119.9 |
C3—C4—H4A | 119.7 | C12—C11—H11A | 119.9 |
C5—C4—H4A | 119.7 | C11—C12—C7 | 122.20 (14) |
C4—C5—C6 | 119.68 (18) | C11—C12—N2 | 115.57 (13) |
C4—C5—H5A | 120.2 | C7—C12—N2 | 122.22 (13) |
C6—C5—H5A | 120.2 | N3—C13—C10 | 179.6 (2) |
C5—C6—C1 | 120.02 (15) | ||
C6—C1—C2—C3 | −1.5 (3) | C8—C9—C10—C11 | −1.1 (3) |
C1—C2—C3—C4 | 0.5 (3) | C8—C9—C10—C13 | −179.63 (16) |
C2—C3—C4—C5 | 0.7 (3) | C9—C10—C11—C12 | 0.1 (2) |
C3—C4—C5—C6 | −0.8 (3) | C13—C10—C11—C12 | 178.70 (15) |
C4—C5—C6—C1 | −0.1 (3) | C10—C11—C12—C7 | 1.5 (2) |
C4—C5—C6—N1 | −175.33 (16) | C10—C11—C12—N2 | −177.32 (14) |
C2—C1—C6—C5 | 1.3 (3) | N1—C7—C12—C11 | 179.94 (15) |
C2—C1—C6—N1 | 176.26 (16) | C8—C7—C12—C11 | −2.1 (2) |
C7—N1—C6—C5 | −137.13 (18) | N1—C7—C12—N2 | −1.3 (2) |
C7—N1—C6—C1 | 47.8 (3) | C8—C7—C12—N2 | 176.63 (15) |
C6—N1—C7—C12 | −175.60 (16) | O2—N2—C12—C11 | −1.2 (2) |
C6—N1—C7—C8 | 6.6 (3) | O1—N2—C12—C11 | 178.27 (15) |
N1—C7—C8—C9 | 179.15 (16) | O2—N2—C12—C7 | 180.00 (15) |
C12—C7—C8—C9 | 1.2 (2) | O1—N2—C12—C7 | −0.6 (2) |
C7—C8—C9—C10 | 0.4 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1 | 0.86 | 1.96 | 2.6280 (18) | 134 |
C3—H3A···O2i | 0.93 | 2.59 | 3.478 (2) | 159 |
Symmetry code: (i) x, y, z+1. |
Experimental details
Crystal data | |
Chemical formula | C13H9N3O2 |
Mr | 239.23 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 14.066 (3), 7.4290 (15), 11.652 (2) |
β (°) | 109.04 (3) |
V (Å3) | 1151.0 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.30 × 0.30 × 0.10 |
Data collection | |
Diffractometer | Enraf–Nonius CAD-4 |
Absorption correction | ψ scan (North et al., 1968) |
Tmin, Tmax | 0.972, 0.990 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 4199, 2082, 1546 |
Rint | 0.030 |
(sin θ/λ)max (Å−1) | 0.601 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.040, 0.107, 1.04 |
No. of reflections | 2082 |
No. of parameters | 163 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.19, −0.16 |
Computer programs: CAD-4 Software (Enraf–Nonius, 1989), XCAD4 (Harms & Wocadlo, 1995), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEPIII (Burnett & Johnson, 1996), ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1 | 0.86 | 1.96 | 2.6280 (18) | 133.8 |
C3—H3A···O2i | 0.93 | 2.59 | 3.478 (2) | 159.2 |
Symmetry code: (i) x, y, z+1. |
Acknowledgements
The authors thank Dr Shan Liu from Nanjing University of Technology for useful discussion and the Center of Testing and Analysis, Nanjing University, for support.
References
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The molecule of the title compound is non planar, the two phenyl rings make a dihedral angle of 49.41 (9)°. The nitro and nitrile groups are nearly in the plane of the C7–C12 phenyl ring with the largest deviation being 0.123 (1) Å at O2 (Fig. 1). Bond lengths and bond angles agree with related structures recently reported (Li, Liu et al., 2009; Li, Wu et al., 2009; McWilliam et al., 2001)
There is an intramolecular N-H···O hydrogen bond forming S(6) ring (Etter et al., 1990; Bernstein et al., 1995). A weak intermolecular C-H···O interactions link the molecule into a chain parallel to the c axis (Table 1, Fig. 2). Futhermore sliipest π-π interaction between symmetry related phenyl rings (symmetry code: (i) x,3/2-y,1/2+z) stabilize the structure (centroid to centroid 3.808 (1)Å, interplanar distance 3.544 (8)Å with an offset of 21.5° .