organic compounds
N′-(2-Methoxybenzylidene)-2-nitrobenzohydrazide
aSchool of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha Hunan 410004, People's Republic of China
*Correspondence e-mail: gejiangxiaowc@163.com
The title compound, C15H13N3O4, was synthesized by the reaction of equimolar quantities of 2-methoxybenzaldehyde and 2-nitrobenzohydrazide in methanol. The dihedral angle between the two substituted benzene rings is 68.3 (2)°. In the inversion dimers linked by pairs of N—H⋯O hydrogen bonds occur.
Related literature
For the pharmacological properties of hydrazone compounds, see: Beraldo & Gambino (2004). For related structures, see: Galić et al. (2001); Richardson & Bernhardt (1999); Ali et al. (2004). For bond length data, see: Allen et al. (1987).
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: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536809005753/sj2574sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809005753/sj2574Isup2.hkl
The title compound was synthesized by the reaction of equimolar quantities (1.0 mmol each) of 2-methoxybenzaldehyde and 2-nitrobenzohydrazide in methanol (100 ml) for 3 h at room temperature. The solution was kept in air for a few days, forming colorless block-like crystals of the compound.
The N-bound H atom was located in a difference Fourier map and was refined with an N–H distance restraint of 0.90 (1) Å. C-bound H atoms were placed in calculated positions (C–H = 0.93–0.96 Å) and refined using a riding model with Uiso(H) = 1.2Ueq(C) and 1.5Ueq(C15). Crystals were small and weakly diffracting which explains the relatively low data fraction.
Data collection: SMART (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C15H13N3O4 | Z = 2 |
Mr = 299.28 | F(000) = 312 |
Triclinic, P1 | Dx = 1.338 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 7.491 (2) Å | Cell parameters from 1428 reflections |
b = 9.427 (3) Å | θ = 2.8–24.9° |
c = 10.977 (3) Å | µ = 0.10 mm−1 |
α = 91.748 (4)° | T = 298 K |
β = 106.218 (4)° | Block, colorless |
γ = 92.221 (4)° | 0.23 × 0.23 × 0.22 mm |
V = 743.1 (4) Å3 |
Bruker SMART 1000 CCD area-detector diffractometer | 3140 independent reflections |
Radiation source: fine-focus sealed tube | 2018 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.022 |
ω scans | θmax = 27.0°, θmin = 1.9° |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | h = −9→9 |
Tmin = 0.978, Tmax = 0.979 | k = −12→11 |
6232 measured reflections | l = −13→14 |
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)] = 0.048 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.132 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0615P)2 + 0.0142P] where P = (Fo2 + 2Fc2)/3 |
3140 reflections | (Δ/σ)max = 0.001 |
203 parameters | Δρmax = 0.14 e Å−3 |
1 restraint | Δρmin = −0.20 e Å−3 |
C15H13N3O4 | γ = 92.221 (4)° |
Mr = 299.28 | V = 743.1 (4) Å3 |
Triclinic, P1 | Z = 2 |
a = 7.491 (2) Å | Mo Kα radiation |
b = 9.427 (3) Å | µ = 0.10 mm−1 |
c = 10.977 (3) Å | T = 298 K |
α = 91.748 (4)° | 0.23 × 0.23 × 0.22 mm |
β = 106.218 (4)° |
Bruker SMART 1000 CCD area-detector diffractometer | 3140 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | 2018 reflections with I > 2σ(I) |
Tmin = 0.978, Tmax = 0.979 | Rint = 0.022 |
6232 measured reflections |
R[F2 > 2σ(F2)] = 0.048 | 1 restraint |
wR(F2) = 0.132 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | Δρmax = 0.14 e Å−3 |
3140 reflections | Δρmin = −0.20 e Å−3 |
203 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 | ||
O1 | 0.6095 (2) | 0.83513 (13) | 0.54829 (12) | 0.0763 (4) | |
O2 | 0.1921 (2) | 0.69215 (17) | 0.37644 (16) | 0.0874 (5) | |
O3 | 0.1059 (2) | 0.54863 (19) | 0.2124 (2) | 0.1155 (7) | |
O4 | 0.32257 (18) | 1.20069 (12) | 0.01171 (11) | 0.0635 (4) | |
N1 | 0.4749 (2) | 0.90208 (15) | 0.35161 (13) | 0.0609 (4) | |
N2 | 0.3966 (2) | 0.86740 (14) | 0.22397 (12) | 0.0526 (4) | |
N3 | 0.2239 (2) | 0.60480 (19) | 0.30207 (19) | 0.0714 (5) | |
C1 | 0.5624 (2) | 0.65719 (17) | 0.38490 (14) | 0.0479 (4) | |
C2 | 0.4158 (2) | 0.56387 (18) | 0.32220 (16) | 0.0504 (4) | |
C3 | 0.4423 (3) | 0.43069 (18) | 0.27844 (17) | 0.0620 (5) | |
H3 | 0.3408 | 0.3709 | 0.2360 | 0.074* | |
C4 | 0.6193 (3) | 0.3869 (2) | 0.29785 (19) | 0.0686 (5) | |
H4 | 0.6392 | 0.2967 | 0.2690 | 0.082* | |
C5 | 0.7670 (3) | 0.4760 (2) | 0.35974 (18) | 0.0663 (5) | |
H5 | 0.8875 | 0.4463 | 0.3725 | 0.080* | |
C6 | 0.7390 (2) | 0.6095 (2) | 0.40340 (16) | 0.0590 (5) | |
H6 | 0.8411 | 0.6684 | 0.4461 | 0.071* | |
C7 | 0.5456 (3) | 0.80422 (18) | 0.43443 (16) | 0.0559 (5) | |
C8 | 0.3456 (2) | 0.97399 (17) | 0.15700 (15) | 0.0496 (4) | |
H8 | 0.3691 | 1.0645 | 0.1958 | 0.060* | |
C9 | 0.2516 (2) | 0.95924 (17) | 0.02188 (15) | 0.0473 (4) | |
C10 | 0.2377 (2) | 1.07927 (19) | −0.05146 (15) | 0.0507 (4) | |
C11 | 0.1419 (3) | 1.0699 (2) | −0.17899 (17) | 0.0675 (5) | |
H11 | 0.1328 | 1.1499 | −0.2275 | 0.081* | |
C12 | 0.0606 (3) | 0.9428 (3) | −0.2335 (2) | 0.0777 (6) | |
H12 | −0.0041 | 0.9371 | −0.3193 | 0.093* | |
C13 | 0.0727 (3) | 0.8231 (2) | −0.1637 (2) | 0.0735 (6) | |
H13 | 0.0170 | 0.7370 | −0.2020 | 0.088* | |
C14 | 0.1680 (3) | 0.8317 (2) | −0.03657 (18) | 0.0618 (5) | |
H14 | 0.1763 | 0.7508 | 0.0107 | 0.074* | |
C15 | 0.3219 (4) | 1.3252 (2) | −0.0573 (2) | 0.0835 (7) | |
H15A | 0.3822 | 1.3086 | −0.1227 | 0.125* | |
H15B | 0.3874 | 1.4019 | −0.0009 | 0.125* | |
H15C | 0.1958 | 1.3497 | −0.0953 | 0.125* | |
H1 | 0.462 (3) | 0.9897 (13) | 0.3841 (18) | 0.080* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.1187 (12) | 0.0584 (8) | 0.0431 (8) | 0.0124 (8) | 0.0071 (7) | 0.0026 (6) |
O2 | 0.0841 (11) | 0.0920 (11) | 0.1047 (12) | 0.0271 (9) | 0.0521 (9) | 0.0251 (10) |
O3 | 0.0594 (10) | 0.1026 (13) | 0.1606 (18) | −0.0046 (9) | −0.0059 (11) | −0.0071 (12) |
O4 | 0.0816 (9) | 0.0535 (7) | 0.0498 (7) | −0.0058 (6) | 0.0095 (6) | 0.0122 (6) |
N1 | 0.0937 (12) | 0.0441 (8) | 0.0412 (8) | 0.0091 (8) | 0.0119 (8) | 0.0035 (6) |
N2 | 0.0670 (9) | 0.0485 (8) | 0.0426 (8) | 0.0070 (7) | 0.0149 (7) | 0.0036 (6) |
N3 | 0.0590 (11) | 0.0633 (11) | 0.0941 (14) | 0.0018 (9) | 0.0236 (10) | 0.0200 (10) |
C1 | 0.0598 (11) | 0.0455 (9) | 0.0382 (9) | 0.0046 (8) | 0.0122 (7) | 0.0101 (7) |
C2 | 0.0515 (10) | 0.0488 (10) | 0.0536 (10) | 0.0057 (8) | 0.0180 (8) | 0.0126 (8) |
C3 | 0.0713 (13) | 0.0459 (10) | 0.0673 (12) | −0.0034 (9) | 0.0175 (10) | 0.0045 (9) |
C4 | 0.0838 (15) | 0.0526 (11) | 0.0747 (13) | 0.0144 (10) | 0.0292 (11) | 0.0060 (10) |
C5 | 0.0629 (12) | 0.0700 (13) | 0.0697 (13) | 0.0201 (10) | 0.0213 (10) | 0.0160 (10) |
C6 | 0.0552 (11) | 0.0629 (12) | 0.0541 (11) | 0.0023 (9) | 0.0067 (8) | 0.0105 (9) |
C7 | 0.0734 (12) | 0.0496 (10) | 0.0427 (10) | 0.0033 (9) | 0.0127 (8) | 0.0069 (8) |
C8 | 0.0599 (10) | 0.0437 (9) | 0.0454 (10) | 0.0036 (8) | 0.0148 (8) | 0.0032 (8) |
C9 | 0.0486 (9) | 0.0490 (10) | 0.0459 (9) | 0.0047 (7) | 0.0153 (7) | 0.0012 (8) |
C10 | 0.0483 (10) | 0.0598 (11) | 0.0436 (9) | 0.0040 (8) | 0.0118 (7) | 0.0036 (8) |
C11 | 0.0670 (12) | 0.0854 (15) | 0.0466 (11) | 0.0043 (11) | 0.0096 (9) | 0.0082 (10) |
C12 | 0.0665 (13) | 0.1108 (18) | 0.0486 (11) | 0.0036 (12) | 0.0059 (9) | −0.0106 (12) |
C13 | 0.0657 (13) | 0.0799 (15) | 0.0706 (14) | −0.0082 (11) | 0.0166 (10) | −0.0269 (12) |
C14 | 0.0641 (12) | 0.0577 (11) | 0.0635 (12) | 0.0007 (9) | 0.0191 (9) | −0.0070 (9) |
C15 | 0.1165 (18) | 0.0631 (13) | 0.0682 (14) | −0.0017 (12) | 0.0200 (12) | 0.0229 (11) |
O1—C7 | 1.2283 (19) | C5—C6 | 1.377 (3) |
O2—N3 | 1.218 (2) | C5—H5 | 0.9300 |
O3—N3 | 1.215 (2) | C6—H6 | 0.9300 |
O4—C10 | 1.358 (2) | C8—C9 | 1.453 (2) |
O4—C15 | 1.416 (2) | C8—H8 | 0.9300 |
N1—C7 | 1.333 (2) | C9—C14 | 1.385 (2) |
N1—N2 | 1.3828 (19) | C9—C10 | 1.399 (2) |
N1—H1 | 0.910 (9) | C10—C11 | 1.382 (2) |
N2—C8 | 1.270 (2) | C11—C12 | 1.364 (3) |
N3—C2 | 1.461 (2) | C11—H11 | 0.9300 |
C1—C6 | 1.376 (2) | C12—C13 | 1.375 (3) |
C1—C2 | 1.386 (2) | C12—H12 | 0.9300 |
C1—C7 | 1.496 (2) | C13—C14 | 1.377 (3) |
C2—C3 | 1.372 (2) | C13—H13 | 0.9300 |
C3—C4 | 1.365 (3) | C14—H14 | 0.9300 |
C3—H3 | 0.9300 | C15—H15A | 0.9600 |
C4—C5 | 1.366 (3) | C15—H15B | 0.9600 |
C4—H4 | 0.9300 | C15—H15C | 0.9600 |
C10—O4—C15 | 118.70 (14) | N1—C7—C1 | 118.62 (15) |
C7—N1—N2 | 121.79 (14) | N2—C8—C9 | 122.23 (15) |
C7—N1—H1 | 117.1 (13) | N2—C8—H8 | 118.9 |
N2—N1—H1 | 120.3 (13) | C9—C8—H8 | 118.9 |
C8—N2—N1 | 113.81 (14) | C14—C9—C10 | 118.43 (16) |
O3—N3—O2 | 124.2 (2) | C14—C9—C8 | 122.47 (16) |
O3—N3—C2 | 117.72 (19) | C10—C9—C8 | 119.04 (15) |
O2—N3—C2 | 118.09 (18) | O4—C10—C11 | 124.23 (17) |
C6—C1—C2 | 116.74 (16) | O4—C10—C9 | 115.40 (14) |
C6—C1—C7 | 117.41 (16) | C11—C10—C9 | 120.37 (17) |
C2—C1—C7 | 125.85 (16) | C12—C11—C10 | 119.7 (2) |
C3—C2—C1 | 122.53 (17) | C12—C11—H11 | 120.2 |
C3—C2—N3 | 117.31 (17) | C10—C11—H11 | 120.2 |
C1—C2—N3 | 120.16 (16) | C11—C12—C13 | 121.14 (19) |
C4—C3—C2 | 119.23 (18) | C11—C12—H12 | 119.4 |
C4—C3—H3 | 120.4 | C13—C12—H12 | 119.4 |
C2—C3—H3 | 120.4 | C12—C13—C14 | 119.44 (19) |
C3—C4—C5 | 119.76 (18) | C12—C13—H13 | 120.3 |
C3—C4—H4 | 120.1 | C14—C13—H13 | 120.3 |
C5—C4—H4 | 120.1 | C13—C14—C9 | 120.9 (2) |
C4—C5—C6 | 120.57 (19) | C13—C14—H14 | 119.5 |
C4—C5—H5 | 119.7 | C9—C14—H14 | 119.5 |
C6—C5—H5 | 119.7 | O4—C15—H15A | 109.5 |
C1—C6—C5 | 121.16 (18) | O4—C15—H15B | 109.5 |
C1—C6—H6 | 119.4 | H15A—C15—H15B | 109.5 |
C5—C6—H6 | 119.4 | O4—C15—H15C | 109.5 |
O1—C7—N1 | 121.37 (16) | H15A—C15—H15C | 109.5 |
O1—C7—C1 | 119.77 (15) | H15B—C15—H15C | 109.5 |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1i | 0.91 (1) | 1.94 (1) | 2.844 (2) | 170 (2) |
Symmetry code: (i) −x+1, −y+2, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C15H13N3O4 |
Mr | 299.28 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 298 |
a, b, c (Å) | 7.491 (2), 9.427 (3), 10.977 (3) |
α, β, γ (°) | 91.748 (4), 106.218 (4), 92.221 (4) |
V (Å3) | 743.1 (4) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.23 × 0.23 × 0.22 |
Data collection | |
Diffractometer | Bruker SMART 1000 CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2001) |
Tmin, Tmax | 0.978, 0.979 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6232, 3140, 2018 |
Rint | 0.022 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.048, 0.132, 1.03 |
No. of reflections | 3140 |
No. of parameters | 203 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.14, −0.20 |
Computer programs: SMART (Bruker, 2007), SAINT (Bruker, 2007), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1i | 0.910 (9) | 1.943 (10) | 2.844 (2) | 170.3 (18) |
Symmetry code: (i) −x+1, −y+2, −z+1. |
Acknowledgements
This work was supported by Changsha University of Science and Technology (project No. 1004091).
References
Ali, H., Khamis, N. A. & Yamin, B. M. (2004). Acta Cryst. E60, o1873–o1874. CSD CrossRef IUCr Journals Google Scholar
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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 compounds have received considerable attention due to their pharmacological properties (Beraldo & Gambino, 2004). In the last few years, the crystal structures and properties of a series of hydrazone compounds have been reported (Galić et al., 2001; Richardson & Bernhardt, 1999; Ali et al., 2004). As a continuation of work on these compounds, we report here the structure of the title compound, (I) Fig. 1.
In (I), the dihedral angle between the C1—C6 and C9—C14 benzene rings is 111.7 (2)° while that between the O2—N3—O3 nitro plane and the plane of the C1—C6 benzene ring is 26.7 (2)°. Bond lengths in the compound are found to have normal values (Allen et al., 1987). The methoxy group is coplanar with the C9—C14 benzene ring, with a C15—O4—C10—C11 torsion angle of -3.2 (2)°.
In the crystal packing, adjacent molecules are linked through intermolecular N1–H1···O1 hydrogen bonds (Table 1), forming dimers (Fig. 2).