organic compounds
2-Nitro-N′-[1-(pyridin-2-yl)ethylidene]benzohydrazide
aInstitute of Marine Materials Science and Engineering, Shanghai Maritime University, Shanghai 201306, People's Republic of China
*Correspondence e-mail: yanan@shmtu.edu.cn
In the title compound, C14H12N4O3, the dihedral angle between the benzene ring and the pyridine ring is 60.9 (2)°. The major twist in the molecule occurs about the (NH)—(CO)—Car—Car (ar = aromatic) bond, the relevant torsion angle being 63.97 (12)°. In the crystal, inversion dimers linked by pairs of N—H⋯O hydrogen bonds generate R22(8) loops.
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2007); cell SAINT (Bruker, 2007); 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
https://doi.org/10.1107/S1600536811049257/hb6488sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536811049257/hb6488Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536811049257/hb6488Isup3.cml
Equimolar quantities (0.5 mmol each) of 2-acetylpyridine and 2-nitrobenzohydrazide were mixed in 30 ml me thanol. The mixture was stirred at reflux for 30 min and cooled to room temperature. Yellow block-shaped single crytals were formed by slow evaporation of the solvent in air.
H3 atom was located in a difference Fourier map and was refined with distance restraint, N—H = 0.90 (1) Å. The remaining H atoms were positioned geometrically and refined using a riding model, with C—H = 0.93–0.96 Å, and with Uiso(H) = 1.2Ueq(C) and 1.5Ueq(C7).
As a continuation of the work on the structures of hydrazone compounds the title compound, (I), is now described.
The molecular structure of the title compound is shown as Fig. 1. The dihedral angle between the benzene ring and the pyridine ring is 60.9 (2)°, indicating the molecule of the compound is much distorted. The bond distances comparable to the values observed in similar compounds (Tang, 2011; Mangalam et al., 2009).
In the
of the compound, adjacent two molecules are linked through two intermolecular N—H···O hydrogen bonds (Table 1) to form a dimer (Fig. 2).For related structures, see: Mangalam et al. (2009); Tang (2011).
Data collection: SMART (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); 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).C14H12N4O3 | F(000) = 592 |
Mr = 284.28 | Dx = 1.336 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 3300 reflections |
a = 10.8303 (8) Å | θ = 2.6–28.3° |
b = 8.9112 (7) Å | µ = 0.10 mm−1 |
c = 14.9437 (11) Å | T = 298 K |
β = 101.483 (1)° | Block, yellow |
V = 1413.36 (18) Å3 | 0.20 × 0.20 × 0.18 mm |
Z = 4 |
Bruker SMART 1K CCD diffractometer | 3048 independent reflections |
Radiation source: fine-focus sealed tube | 2358 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.015 |
ω scan | θmax = 27.0°, θmin = 2.1° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −13→9 |
Tmin = 0.981, Tmax = 0.983 | k = −11→11 |
7984 measured reflections | l = −18→19 |
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)] = 0.043 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.126 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0611P)2 + 0.2704P] where P = (Fo2 + 2Fc2)/3 |
3048 reflections | (Δ/σ)max < 0.001 |
194 parameters | Δρmax = 0.23 e Å−3 |
1 restraint | Δρmin = −0.19 e Å−3 |
C14H12N4O3 | V = 1413.36 (18) Å3 |
Mr = 284.28 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 10.8303 (8) Å | µ = 0.10 mm−1 |
b = 8.9112 (7) Å | T = 298 K |
c = 14.9437 (11) Å | 0.20 × 0.20 × 0.18 mm |
β = 101.483 (1)° |
Bruker SMART 1K CCD diffractometer | 3048 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2358 reflections with I > 2σ(I) |
Tmin = 0.981, Tmax = 0.983 | Rint = 0.015 |
7984 measured reflections |
R[F2 > 2σ(F2)] = 0.043 | 1 restraint |
wR(F2) = 0.126 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | Δρmax = 0.23 e Å−3 |
3048 reflections | Δρmin = −0.19 e Å−3 |
194 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 | ||
N1 | 0.12218 (13) | 1.12660 (15) | 0.19162 (9) | 0.0549 (3) | |
N2 | 0.13344 (11) | 0.83590 (12) | 0.03440 (8) | 0.0444 (3) | |
N3 | 0.09007 (12) | 0.69373 (13) | 0.00993 (8) | 0.0476 (3) | |
N4 | 0.39424 (14) | 0.72128 (18) | 0.02669 (11) | 0.0702 (4) | |
O1 | 0.09268 (11) | 0.50167 (12) | −0.08683 (8) | 0.0591 (3) | |
O2 | 0.47052 (19) | 0.8063 (2) | 0.07159 (12) | 0.1265 (8) | |
O3 | 0.36144 (14) | 0.60537 (16) | 0.05665 (10) | 0.0845 (4) | |
C1 | 0.14756 (12) | 1.05765 (15) | 0.11797 (9) | 0.0416 (3) | |
C2 | 0.21742 (15) | 1.12613 (17) | 0.06083 (11) | 0.0535 (4) | |
H2 | 0.2356 | 1.0747 | 0.0109 | 0.064* | |
C3 | 0.25946 (17) | 1.27091 (18) | 0.07897 (13) | 0.0629 (4) | |
H3A | 0.3046 | 1.3194 | 0.0407 | 0.075* | |
C4 | 0.23368 (17) | 1.34274 (18) | 0.15460 (12) | 0.0631 (5) | |
H4 | 0.2610 | 1.4404 | 0.1686 | 0.076* | |
C5 | 0.16671 (18) | 1.26654 (19) | 0.20863 (12) | 0.0641 (5) | |
H5 | 0.1510 | 1.3147 | 0.2604 | 0.077* | |
C6 | 0.09516 (13) | 0.90373 (15) | 0.09935 (9) | 0.0416 (3) | |
C7 | 0.00521 (17) | 0.8435 (2) | 0.15426 (12) | 0.0616 (4) | |
H7A | −0.0685 | 0.8058 | 0.1140 | 0.092* | |
H7B | −0.0185 | 0.9222 | 0.1914 | 0.092* | |
H7C | 0.0448 | 0.7637 | 0.1928 | 0.092* | |
C8 | 0.13068 (14) | 0.62602 (15) | −0.05927 (10) | 0.0452 (3) | |
C9 | 0.21832 (14) | 0.71408 (15) | −0.10665 (10) | 0.0460 (3) | |
C10 | 0.33825 (15) | 0.76293 (16) | −0.06705 (11) | 0.0519 (4) | |
C11 | 0.41041 (18) | 0.8496 (2) | −0.11371 (14) | 0.0666 (5) | |
H11 | 0.4896 | 0.8832 | −0.0848 | 0.080* | |
C12 | 0.3637 (2) | 0.8853 (2) | −0.20298 (15) | 0.0751 (6) | |
H12 | 0.4120 | 0.9420 | −0.2354 | 0.090* | |
C13 | 0.2465 (2) | 0.8381 (2) | −0.24480 (14) | 0.0759 (6) | |
H13 | 0.2152 | 0.8628 | −0.3055 | 0.091* | |
C14 | 0.17386 (18) | 0.7532 (2) | −0.19668 (11) | 0.0611 (4) | |
H14 | 0.0939 | 0.7221 | −0.2257 | 0.073* | |
H3 | 0.0368 (15) | 0.640 (2) | 0.0371 (13) | 0.080* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0659 (8) | 0.0473 (7) | 0.0524 (7) | −0.0064 (6) | 0.0134 (6) | −0.0128 (6) |
N2 | 0.0521 (7) | 0.0348 (6) | 0.0491 (7) | −0.0093 (5) | 0.0172 (5) | −0.0071 (5) |
N3 | 0.0570 (7) | 0.0385 (6) | 0.0534 (7) | −0.0140 (5) | 0.0257 (6) | −0.0098 (5) |
N4 | 0.0666 (9) | 0.0687 (10) | 0.0739 (10) | −0.0229 (8) | 0.0109 (8) | 0.0082 (8) |
O1 | 0.0779 (8) | 0.0422 (6) | 0.0646 (7) | −0.0196 (5) | 0.0320 (6) | −0.0173 (5) |
O2 | 0.1304 (14) | 0.1325 (16) | 0.0997 (12) | −0.0800 (12) | −0.0180 (11) | 0.0141 (11) |
O3 | 0.0905 (10) | 0.0725 (9) | 0.0852 (9) | −0.0211 (7) | 0.0049 (7) | 0.0280 (7) |
C1 | 0.0429 (7) | 0.0365 (7) | 0.0433 (7) | −0.0008 (5) | 0.0038 (5) | −0.0034 (5) |
C2 | 0.0646 (9) | 0.0412 (8) | 0.0570 (9) | −0.0072 (7) | 0.0176 (7) | −0.0042 (7) |
C3 | 0.0719 (11) | 0.0439 (9) | 0.0733 (11) | −0.0115 (7) | 0.0154 (9) | 0.0046 (8) |
C4 | 0.0726 (11) | 0.0378 (8) | 0.0733 (11) | −0.0093 (7) | 0.0007 (9) | −0.0071 (8) |
C5 | 0.0777 (11) | 0.0503 (9) | 0.0618 (10) | −0.0057 (8) | 0.0077 (8) | −0.0203 (8) |
C6 | 0.0445 (7) | 0.0398 (7) | 0.0410 (7) | −0.0042 (5) | 0.0094 (5) | −0.0038 (5) |
C7 | 0.0698 (10) | 0.0616 (10) | 0.0604 (10) | −0.0224 (8) | 0.0298 (8) | −0.0164 (8) |
C8 | 0.0539 (8) | 0.0367 (7) | 0.0481 (8) | −0.0081 (6) | 0.0179 (6) | −0.0062 (6) |
C9 | 0.0601 (8) | 0.0325 (7) | 0.0516 (8) | −0.0031 (6) | 0.0258 (7) | −0.0049 (6) |
C10 | 0.0611 (9) | 0.0394 (8) | 0.0607 (9) | −0.0077 (6) | 0.0255 (7) | 0.0005 (7) |
C11 | 0.0694 (11) | 0.0533 (10) | 0.0869 (13) | −0.0105 (8) | 0.0394 (10) | 0.0058 (9) |
C12 | 0.0996 (15) | 0.0567 (11) | 0.0852 (13) | −0.0009 (10) | 0.0576 (12) | 0.0125 (9) |
C13 | 0.1131 (17) | 0.0669 (12) | 0.0576 (10) | 0.0116 (11) | 0.0404 (11) | 0.0133 (9) |
C14 | 0.0751 (11) | 0.0581 (10) | 0.0540 (10) | 0.0025 (8) | 0.0225 (8) | −0.0023 (7) |
N1—C1 | 1.3360 (18) | C4—H4 | 0.9300 |
N1—C5 | 1.343 (2) | C5—H5 | 0.9300 |
N2—C6 | 1.2805 (17) | C6—C7 | 1.493 (2) |
N2—N3 | 1.3752 (15) | C7—H7A | 0.9600 |
N3—C8 | 1.3446 (18) | C7—H7B | 0.9600 |
N3—H3 | 0.903 (9) | C7—H7C | 0.9600 |
N4—O3 | 1.2071 (19) | C8—C9 | 1.5118 (19) |
N4—O2 | 1.219 (2) | C9—C14 | 1.380 (2) |
N4—C10 | 1.459 (2) | C9—C10 | 1.386 (2) |
O1—C8 | 1.2245 (16) | C10—C11 | 1.382 (2) |
C1—C2 | 1.390 (2) | C11—C12 | 1.367 (3) |
C1—C6 | 1.4892 (19) | C11—H11 | 0.9300 |
C2—C3 | 1.377 (2) | C12—C13 | 1.365 (3) |
C2—H2 | 0.9300 | C12—H12 | 0.9300 |
C3—C4 | 1.375 (3) | C13—C14 | 1.391 (3) |
C3—H3A | 0.9300 | C13—H13 | 0.9300 |
C4—C5 | 1.368 (3) | C14—H14 | 0.9300 |
C1—N1—C5 | 117.26 (14) | C6—C7—H7B | 109.5 |
C6—N2—N3 | 119.44 (11) | H7A—C7—H7B | 109.5 |
C8—N3—N2 | 118.11 (11) | C6—C7—H7C | 109.5 |
C8—N3—H3 | 116.5 (13) | H7A—C7—H7C | 109.5 |
N2—N3—H3 | 125.4 (13) | H7B—C7—H7C | 109.5 |
O3—N4—O2 | 123.02 (17) | O1—C8—N3 | 121.68 (13) |
O3—N4—C10 | 118.49 (14) | O1—C8—C9 | 120.83 (12) |
O2—N4—C10 | 118.48 (15) | N3—C8—C9 | 117.34 (11) |
N1—C1—C2 | 122.05 (13) | C14—C9—C10 | 116.89 (14) |
N1—C1—C6 | 116.38 (12) | C14—C9—C8 | 117.24 (14) |
C2—C1—C6 | 121.56 (12) | C10—C9—C8 | 125.84 (14) |
C3—C2—C1 | 119.31 (15) | C11—C10—C9 | 122.42 (16) |
C3—C2—H2 | 120.3 | C11—C10—N4 | 117.24 (15) |
C1—C2—H2 | 120.3 | C9—C10—N4 | 120.33 (13) |
C4—C3—C2 | 119.00 (16) | C12—C11—C10 | 119.04 (18) |
C4—C3—H3A | 120.5 | C12—C11—H11 | 120.5 |
C2—C3—H3A | 120.5 | C10—C11—H11 | 120.5 |
C5—C4—C3 | 118.18 (15) | C13—C12—C11 | 120.35 (17) |
C5—C4—H4 | 120.9 | C13—C12—H12 | 119.8 |
C3—C4—H4 | 120.9 | C11—C12—H12 | 119.8 |
N1—C5—C4 | 124.17 (16) | C12—C13—C14 | 120.08 (18) |
N1—C5—H5 | 117.9 | C12—C13—H13 | 120.0 |
C4—C5—H5 | 117.9 | C14—C13—H13 | 120.0 |
N2—C6—C1 | 114.05 (12) | C9—C14—C13 | 121.19 (18) |
N2—C6—C7 | 126.30 (12) | C9—C14—H14 | 119.4 |
C1—C6—C7 | 119.65 (12) | C13—C14—H14 | 119.4 |
C6—C7—H7A | 109.5 |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3···O1i | 0.90 (1) | 2.13 (1) | 3.0290 (15) | 173 (2) |
Symmetry code: (i) −x, −y+1, −z. |
Experimental details
Crystal data | |
Chemical formula | C14H12N4O3 |
Mr | 284.28 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 298 |
a, b, c (Å) | 10.8303 (8), 8.9112 (7), 14.9437 (11) |
β (°) | 101.483 (1) |
V (Å3) | 1413.36 (18) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.20 × 0.20 × 0.18 |
Data collection | |
Diffractometer | Bruker SMART 1K CCD |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.981, 0.983 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7984, 3048, 2358 |
Rint | 0.015 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.043, 0.126, 1.05 |
No. of reflections | 3048 |
No. of parameters | 194 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.23, −0.19 |
Computer programs: SMART (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3···O1i | 0.903 (9) | 2.131 (10) | 3.0290 (15) | 173.1 (19) |
Symmetry code: (i) −x, −y+1, −z. |
Acknowledgements
The authors thank the National Natural Science Foundation of China (21141007), the Shanghai Natural Science Foundation (11ZR1414800), the `Chen Guang' project supported by the Shanghai Municipal Education Commission and the Shanghai Education Development Foundation (09 C G52), the Project of the Shanghai Municipal Education Commission (09YZ245, 10YZ111) and Shanghai Maritime University (20110017, 20110013) for financial support.
References
Bruker (2007). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Mangalam, N. A., Sivakumar, S., Sheeja, S. R., Kurup, M. R. P. & Tiekink, E. R. T. (2009). Inorg. Chim. Acta, 362, 4191–4197. Web of Science CSD CrossRef CAS Google Scholar
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Tang, C.-B. (2011). Acta Cryst. E67, o271. Web of Science CSD CrossRef 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.
As a continuation of the work on the structures of hydrazone compounds the title compound, (I), is now described.
The molecular structure of the title compound is shown as Fig. 1. The dihedral angle between the benzene ring and the pyridine ring is 60.9 (2)°, indicating the molecule of the compound is much distorted. The bond distances comparable to the values observed in similar compounds (Tang, 2011; Mangalam et al., 2009).
In the crystal structure of the compound, adjacent two molecules are linked through two intermolecular N—H···O hydrogen bonds (Table 1) to form a dimer (Fig. 2).