organic compounds
(E)-N′-(2-Chlorobenzylidene)-2-methoxybenzohydrazide
aDepartment of Chemistry, Ankang University, Ankang Shanxi 725000, People's Republic of China
*Correspondence e-mail: guobiao_cao@126.com
The molecule of the title compound, C15H13ClN2O2, displays an E configuration about the C=N bond. The dihedral angle between the two benzene rings is 77.1 (2)°. In the molecules are linked through intermolecular N—H⋯O hydrogen bonds, forming chains running along the b axis.
Related literature
For examples of the crystal structures of hydrazone compounds, see: Mohd Lair et al. (2009); Fun et al. (2008); Li & Ban (2009); Zhu et al. (2009); Yang (2007); You et al. (2008). For the hydrazone compounds we have reported previously, see: Qu et al. (2008); Yang et al. (2008), Cao & Lu (2009a,b), Qu & Cao (2009), Cao & Wang (2009).
Experimental
Crystal data
|
Refinement
|
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
https://doi.org/10.1107/S1600536809039725/rz2366sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536809039725/rz2366Isup2.hkl
The title compound was prepared by refluxing 2-chlorobenzaldehyde (0.1 mmol, 14.0 mg) with 2-methoxybenzohydrazide (0.1 mmol, 16.6 mg) in methanol (20 ml). Colourless block-like crystals were formed by slow evaporation of the solution in air.
Atom H2 was located in a difference Fourier map and refined isotropically, with the N—H distance restrained to 0.90 (1) Å. The other H atoms were placed in idealized positions and constrained to ride on their parent atoms, with C—H distances of 0.93-0.96 Å, and with Uiso(H) set at 1.2Ueq(C) or 1.5Ueq(methyl C).
Study on the crystal structures of hydrazone derivatives is an interesting topic in structural chemistry. Recently, the crystal structures of a number of hydrazone compounds have been reported (Mohd Lair et al., 2009; Fun et al., 2008; Li & Ban, 2009; Zhu et al., 2009; Yang, 2007; You et al., 2008). As a continuation of our work in this area (Qu et al., 2008; Yang et al., 2008; Cao & Lu, 2009a,b; Qu & Cao, 2009; Cao & Wang, 2009), the title new hydrazone compound, derived from the reaction of 2-chlorobenzaldehyde with an equimolar quantity of 2-methoxybenzohydrazide, is reported.
The molecule of the title compound (Fig. 1) displays an E configuration about the C═N bond. The dihedral angle between the two benzene rings is 77.1 (2)°. In the molecules are linked through intermolecular N—H···O hydrogen bonds (Table 1) to form chains running along the b axis (Fig. 2).
For examples of the crystal structures of hydrazone compounds, see: Mohd Lair et al. (2009); Fun et al. (2008); Li & Ban (2009); Zhu et al. (2009); Yang (2007); You et al. (2008). For the hydrazone compounds we have reported previously, see: Qu et al. (2008); Yang et al. (2008), Cao & Lu (2009a,b), Qu & Cao (2009), Cao & Wang (2009).
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).C15H13ClN2O2 | F(000) = 1200 |
Mr = 288.72 | Dx = 1.408 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 4172 reflections |
a = 12.808 (2) Å | θ = 2.4–26.7° |
b = 9.719 (2) Å | µ = 0.28 mm−1 |
c = 21.882 (1) Å | T = 298 K |
V = 2723.9 (7) Å3 | Block, colourless |
Z = 8 | 0.30 × 0.27 × 0.27 mm |
Bruker SMART CCD area-detector diffractometer | 2977 independent reflections |
Radiation source: fine-focus sealed tube | 2317 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.026 |
ω scans | θmax = 27.0°, θmin = 1.9° |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | h = −16→11 |
Tmin = 0.920, Tmax = 0.928 | k = −12→12 |
15666 measured reflections | l = −27→27 |
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)] = 0.038 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.103 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0414P)2 + 0.9256P] where P = (Fo2 + 2Fc2)/3 |
2977 reflections | (Δ/σ)max = 0.001 |
185 parameters | Δρmax = 0.24 e Å−3 |
1 restraint | Δρmin = −0.33 e Å−3 |
C15H13ClN2O2 | V = 2723.9 (7) Å3 |
Mr = 288.72 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 12.808 (2) Å | µ = 0.28 mm−1 |
b = 9.719 (2) Å | T = 298 K |
c = 21.882 (1) Å | 0.30 × 0.27 × 0.27 mm |
Bruker SMART CCD area-detector diffractometer | 2977 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | 2317 reflections with I > 2σ(I) |
Tmin = 0.920, Tmax = 0.928 | Rint = 0.026 |
15666 measured reflections |
R[F2 > 2σ(F2)] = 0.038 | 1 restraint |
wR(F2) = 0.103 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | Δρmax = 0.24 e Å−3 |
2977 reflections | Δρmin = −0.33 e Å−3 |
185 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 > 2sigma(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 | ||
Cl1 | 0.69237 (5) | 1.03716 (5) | 0.48396 (2) | 0.07052 (19) | |
N1 | 0.65156 (10) | 0.68177 (13) | 0.59858 (5) | 0.0376 (3) | |
N2 | 0.70523 (10) | 0.69184 (13) | 0.65323 (6) | 0.0368 (3) | |
O1 | 0.70476 (9) | 0.46137 (10) | 0.66748 (5) | 0.0429 (3) | |
O2 | 0.91235 (9) | 0.45442 (12) | 0.71914 (6) | 0.0519 (3) | |
C1 | 0.59496 (13) | 0.79503 (16) | 0.50823 (7) | 0.0397 (4) | |
C2 | 0.60523 (14) | 0.90535 (19) | 0.46817 (7) | 0.0473 (4) | |
C3 | 0.54802 (17) | 0.9123 (2) | 0.41464 (8) | 0.0630 (5) | |
H3 | 0.5550 | 0.9877 | 0.3888 | 0.076* | |
C4 | 0.48113 (17) | 0.8075 (3) | 0.39982 (8) | 0.0691 (6) | |
H4 | 0.4425 | 0.8124 | 0.3639 | 0.083* | |
C5 | 0.47062 (15) | 0.6950 (2) | 0.43767 (8) | 0.0616 (5) | |
H5 | 0.4259 | 0.6234 | 0.4271 | 0.074* | |
C6 | 0.52691 (14) | 0.68944 (19) | 0.49135 (8) | 0.0501 (4) | |
H6 | 0.5194 | 0.6136 | 0.5169 | 0.060* | |
C7 | 0.65157 (13) | 0.79086 (16) | 0.56644 (7) | 0.0399 (4) | |
H7 | 0.6876 | 0.8682 | 0.5799 | 0.048* | |
C8 | 0.72722 (11) | 0.57716 (15) | 0.68513 (6) | 0.0328 (3) | |
C9 | 0.77783 (12) | 0.60482 (15) | 0.74570 (7) | 0.0363 (3) | |
C10 | 0.86873 (13) | 0.53644 (16) | 0.76282 (7) | 0.0429 (4) | |
C11 | 0.90966 (17) | 0.5564 (2) | 0.82074 (9) | 0.0602 (5) | |
H11 | 0.9706 | 0.5113 | 0.8323 | 0.072* | |
C12 | 0.85998 (19) | 0.6431 (3) | 0.86112 (9) | 0.0716 (6) | |
H12 | 0.8868 | 0.6538 | 0.9003 | 0.086* | |
C13 | 0.77176 (17) | 0.7140 (2) | 0.84470 (8) | 0.0634 (5) | |
H13 | 0.7399 | 0.7742 | 0.8720 | 0.076* | |
C14 | 0.73121 (14) | 0.69436 (17) | 0.78697 (7) | 0.0453 (4) | |
H14 | 0.6714 | 0.7420 | 0.7754 | 0.054* | |
C15 | 1.01129 (16) | 0.3943 (3) | 0.73206 (11) | 0.0753 (7) | |
H15A | 1.0616 | 0.4657 | 0.7393 | 0.113* | |
H15B | 1.0332 | 0.3395 | 0.6979 | 0.113* | |
H15C | 1.0058 | 0.3372 | 0.7677 | 0.113* | |
H2 | 0.7296 (17) | 0.7743 (14) | 0.6645 (9) | 0.080* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.1003 (4) | 0.0546 (3) | 0.0567 (3) | −0.0134 (3) | −0.0006 (3) | 0.0130 (2) |
N1 | 0.0449 (7) | 0.0357 (7) | 0.0323 (6) | 0.0034 (6) | −0.0073 (5) | −0.0016 (5) |
N2 | 0.0478 (7) | 0.0295 (6) | 0.0330 (6) | −0.0012 (5) | −0.0091 (5) | 0.0000 (5) |
O1 | 0.0548 (7) | 0.0287 (6) | 0.0451 (6) | 0.0017 (5) | −0.0090 (5) | −0.0018 (5) |
O2 | 0.0435 (7) | 0.0469 (7) | 0.0654 (8) | 0.0123 (5) | −0.0045 (6) | 0.0001 (6) |
C1 | 0.0478 (9) | 0.0403 (8) | 0.0311 (7) | 0.0094 (7) | −0.0030 (6) | −0.0032 (6) |
C2 | 0.0583 (10) | 0.0487 (10) | 0.0349 (8) | 0.0099 (8) | 0.0001 (7) | 0.0014 (7) |
C3 | 0.0777 (14) | 0.0747 (13) | 0.0367 (9) | 0.0216 (12) | −0.0060 (9) | 0.0072 (9) |
C4 | 0.0683 (13) | 0.1022 (17) | 0.0369 (9) | 0.0257 (13) | −0.0174 (9) | −0.0083 (10) |
C5 | 0.0551 (11) | 0.0802 (14) | 0.0496 (10) | 0.0067 (10) | −0.0126 (9) | −0.0189 (10) |
C6 | 0.0569 (11) | 0.0512 (10) | 0.0423 (9) | 0.0029 (8) | −0.0069 (8) | −0.0070 (8) |
C7 | 0.0499 (9) | 0.0343 (8) | 0.0354 (8) | 0.0011 (7) | −0.0064 (7) | −0.0013 (6) |
C8 | 0.0341 (8) | 0.0298 (7) | 0.0344 (7) | 0.0018 (6) | −0.0001 (6) | 0.0000 (6) |
C9 | 0.0416 (8) | 0.0313 (7) | 0.0360 (7) | −0.0032 (6) | −0.0028 (6) | 0.0051 (6) |
C10 | 0.0458 (9) | 0.0358 (8) | 0.0470 (9) | −0.0043 (7) | −0.0057 (7) | 0.0096 (7) |
C11 | 0.0641 (12) | 0.0619 (12) | 0.0547 (11) | −0.0081 (10) | −0.0251 (9) | 0.0154 (9) |
C12 | 0.0886 (16) | 0.0872 (16) | 0.0389 (10) | −0.0188 (13) | −0.0197 (10) | 0.0042 (10) |
C13 | 0.0757 (14) | 0.0748 (14) | 0.0397 (9) | −0.0136 (11) | 0.0018 (9) | −0.0127 (9) |
C14 | 0.0503 (10) | 0.0452 (9) | 0.0406 (8) | 0.0002 (8) | −0.0008 (7) | −0.0055 (7) |
C15 | 0.0493 (11) | 0.0764 (15) | 0.1003 (17) | 0.0188 (11) | 0.0003 (11) | 0.0219 (13) |
Cl1—C2 | 1.734 (2) | C5—H5 | 0.9300 |
N1—C7 | 1.2723 (19) | C6—H6 | 0.9300 |
N1—N2 | 1.3830 (17) | C7—H7 | 0.9300 |
N2—C8 | 1.3449 (18) | C8—C9 | 1.500 (2) |
N2—H2 | 0.895 (10) | C9—C14 | 1.389 (2) |
O1—C8 | 1.2241 (17) | C9—C10 | 1.392 (2) |
O2—C10 | 1.364 (2) | C10—C11 | 1.385 (2) |
O2—C15 | 1.424 (2) | C11—C12 | 1.377 (3) |
C1—C2 | 1.391 (2) | C11—H11 | 0.9300 |
C1—C6 | 1.396 (2) | C12—C13 | 1.371 (3) |
C1—C7 | 1.466 (2) | C12—H12 | 0.9300 |
C2—C3 | 1.383 (2) | C13—C14 | 1.379 (2) |
C3—C4 | 1.369 (3) | C13—H13 | 0.9300 |
C3—H3 | 0.9300 | C14—H14 | 0.9300 |
C4—C5 | 1.379 (3) | C15—H15A | 0.9600 |
C4—H4 | 0.9300 | C15—H15B | 0.9600 |
C5—C6 | 1.379 (2) | C15—H15C | 0.9600 |
C7—N1—N2 | 114.77 (13) | O1—C8—C9 | 123.04 (13) |
C8—N2—N1 | 119.62 (12) | N2—C8—C9 | 113.62 (12) |
C8—N2—H2 | 121.7 (14) | C14—C9—C10 | 118.93 (15) |
N1—N2—H2 | 118.4 (14) | C14—C9—C8 | 120.07 (14) |
C10—O2—C15 | 117.73 (16) | C10—C9—C8 | 120.91 (14) |
C2—C1—C6 | 117.31 (15) | O2—C10—C11 | 124.60 (16) |
C2—C1—C7 | 121.47 (15) | O2—C10—C9 | 115.66 (14) |
C6—C1—C7 | 121.21 (15) | C11—C10—C9 | 119.73 (17) |
C3—C2—C1 | 121.39 (18) | C12—C11—C10 | 119.87 (19) |
C3—C2—Cl1 | 118.28 (15) | C12—C11—H11 | 120.1 |
C1—C2—Cl1 | 120.32 (13) | C10—C11—H11 | 120.1 |
C4—C3—C2 | 119.72 (19) | C13—C12—C11 | 121.35 (17) |
C4—C3—H3 | 120.1 | C13—C12—H12 | 119.3 |
C2—C3—H3 | 120.1 | C11—C12—H12 | 119.3 |
C3—C4—C5 | 120.57 (17) | C12—C13—C14 | 118.72 (19) |
C3—C4—H4 | 119.7 | C12—C13—H13 | 120.6 |
C5—C4—H4 | 119.7 | C14—C13—H13 | 120.6 |
C4—C5—C6 | 119.45 (19) | C13—C14—C9 | 121.37 (17) |
C4—C5—H5 | 120.3 | C13—C14—H14 | 119.3 |
C6—C5—H5 | 120.3 | C9—C14—H14 | 119.3 |
C5—C6—C1 | 121.52 (18) | O2—C15—H15A | 109.5 |
C5—C6—H6 | 119.2 | O2—C15—H15B | 109.5 |
C1—C6—H6 | 119.2 | H15A—C15—H15B | 109.5 |
N1—C7—C1 | 120.21 (14) | O2—C15—H15C | 109.5 |
N1—C7—H7 | 119.9 | H15A—C15—H15C | 109.5 |
C1—C7—H7 | 119.9 | H15B—C15—H15C | 109.5 |
O1—C8—N2 | 123.30 (13) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O1i | 0.90 (1) | 2.01 (1) | 2.8791 (16) | 165 (2) |
Symmetry code: (i) −x+3/2, y+1/2, z. |
Experimental details
Crystal data | |
Chemical formula | C15H13ClN2O2 |
Mr | 288.72 |
Crystal system, space group | Orthorhombic, Pbca |
Temperature (K) | 298 |
a, b, c (Å) | 12.808 (2), 9.719 (2), 21.882 (1) |
V (Å3) | 2723.9 (7) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.28 |
Crystal size (mm) | 0.30 × 0.27 × 0.27 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector |
Absorption correction | Multi-scan (SADABS; Bruker, 2001) |
Tmin, Tmax | 0.920, 0.928 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 15666, 2977, 2317 |
Rint | 0.026 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.038, 0.103, 1.05 |
No. of reflections | 2977 |
No. of parameters | 185 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.24, −0.33 |
Computer programs: SMART (Bruker, 2007), SAINT (Bruker, 2007), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O1i | 0.895 (10) | 2.005 (11) | 2.8791 (16) | 165 (2) |
Symmetry code: (i) −x+3/2, y+1/2, z. |
Acknowledgements
The Vital Foundation of Ankang University (project No. 2008AKXY012) and the Special Scientific Research Foundation of the Education Office of Shanxi Province (Project No. 02JK202) are gratefully acknowledged.
References
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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.
Study on the crystal structures of hydrazone derivatives is an interesting topic in structural chemistry. Recently, the crystal structures of a number of hydrazone compounds have been reported (Mohd Lair et al., 2009; Fun et al., 2008; Li & Ban, 2009; Zhu et al., 2009; Yang, 2007; You et al., 2008). As a continuation of our work in this area (Qu et al., 2008; Yang et al., 2008; Cao & Lu, 2009a,b; Qu & Cao, 2009; Cao & Wang, 2009), the title new hydrazone compound, derived from the reaction of 2-chlorobenzaldehyde with an equimolar quantity of 2-methoxybenzohydrazide, is reported.
The molecule of the title compound (Fig. 1) displays an E configuration about the C═N bond. The dihedral angle between the two benzene rings is 77.1 (2)°. In the crystal structure, molecules are linked through intermolecular N—H···O hydrogen bonds (Table 1) to form chains running along the b axis (Fig. 2).