organic compounds
N′-(3,5-Dibromo-2-hydroxybenzylidene)-4-nitrobenzohydrazide methanol monosolvate
aHebei Key Laboratory of Bioinorganic Chemistry, College of Sciences, Agricultural University of Hebei, Baoding 071001, People's Republic of China
*Correspondence e-mail: majingjun71@yahoo.cn
The title compound, C14H9Br2N3O4·CH4O, was obtained as the product of the reaction of 3,5-dibromosalicylaldehyde with 4-nitrobenzohydrazide in methanol. The benzohydrazide molecule is nearly planar, with a maximum deviation of 0.126 (2) Å. The mean planes of the two benzene rings make a dihedral angle of 9.3 (3)°. Intramolecular O—H⋯N and O—H⋯Br interactions are observed in the benzohydrazide molecule. In the crystal, pairs of adjacent benzohydrazide molecules are linked by two methanol molecules through intermolecular O—H⋯O and N—H⋯O hydrogen bonds, forming a dimer.
Related literature
For the biological activity of benzohydrazide compounds, see: El-Sayed et al. (2011); Horiuchi et al. (2009). For coordination compounds involving benzohydrazides, see: El-Dissouky et al. (2010); Zhang et al. (2010). For standard bond lengths, see: Allen et al. (1987). For related structures, see: Suleiman Gwaram et al. (2010); Dai & Mao (2010); Ban (2010).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2001); cell SAINT (Bruker, 2001); 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/S1600536811031187/qm2019sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811031187/qm2019Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536811031187/qm2019Isup3.cml
To a methanol solution (20 ml) of 3,5-dibromosalicylaldehyde (0.1 mmol, 28.0 mg) and 4-nitrobenzohydrazide (0.1 mmol, 18.1 mg), a few drops of acetic acid were added. The mixture was refluxed for 1 h and then cooled to room temperature. The white crystalline solid was collected by filtration, washed with cold methanol and dried in air. Single crystals suitable for X-ray diffraction were obtained by slow evaporation of a methanol solution of the product in air.
H2 atoms bonded to N2 was located in a difference map and refined with distance restraint to 0.90 (1) Å. Other 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(O and C15).
Data collection: SMART (Bruker, 2001); cell
SAINT (Bruker, 2001); data reduction: SAINT (Bruker, 2001); 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).C14H9Br2N3O4·CH4O | F(000) = 936 |
Mr = 475.10 | Dx = 1.857 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
a = 7.576 (2) Å | Cell parameters from 1293 reflections |
b = 13.602 (2) Å | θ = 2.5–24.5° |
c = 17.230 (3) Å | µ = 4.80 mm−1 |
β = 106.816 (3)° | T = 298 K |
V = 1699.6 (6) Å3 | Block, yellow |
Z = 4 | 0.30 × 0.27 × 0.27 mm |
Bruker SMART 1K CCD area-detector diffractometer | 3685 independent reflections |
Radiation source: fine-focus sealed tube | 2011 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.075 |
ω scans | θmax = 27.0°, θmin = 2.5° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | h = −9→9 |
Tmin = 0.327, Tmax = 0.357 | k = −15→17 |
10168 measured reflections | l = −22→13 |
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)] = 0.049 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.103 | H-atom parameters constrained |
S = 1.00 | w = 1/[σ2(Fo2) + (0.P)2] where P = (Fo2 + 2Fc2)/3 |
3685 reflections | (Δ/σ)max = 0.001 |
227 parameters | Δρmax = 0.53 e Å−3 |
0 restraints | Δρmin = −0.52 e Å−3 |
C14H9Br2N3O4·CH4O | V = 1699.6 (6) Å3 |
Mr = 475.10 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 7.576 (2) Å | µ = 4.80 mm−1 |
b = 13.602 (2) Å | T = 298 K |
c = 17.230 (3) Å | 0.30 × 0.27 × 0.27 mm |
β = 106.816 (3)° |
Bruker SMART 1K CCD area-detector diffractometer | 3685 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | 2011 reflections with I > 2σ(I) |
Tmin = 0.327, Tmax = 0.357 | Rint = 0.075 |
10168 measured reflections |
R[F2 > 2σ(F2)] = 0.049 | 0 restraints |
wR(F2) = 0.103 | H-atom parameters constrained |
S = 1.00 | Δρmax = 0.53 e Å−3 |
3685 reflections | Δρmin = −0.52 e Å−3 |
227 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 | ||
Br1 | 0.83099 (8) | 1.22176 (4) | 0.84550 (4) | 0.0533 (2) | |
Br2 | 0.79926 (8) | 0.82702 (4) | 0.94026 (3) | 0.0492 (2) | |
O1 | 0.5709 (5) | 1.1483 (2) | 0.6907 (2) | 0.0470 (10) | |
H1 | 0.5200 | 1.1265 | 0.6454 | 0.056* | |
O2 | 0.2149 (5) | 1.1321 (3) | 0.4660 (2) | 0.0584 (11) | |
O3 | −0.3295 (6) | 0.8090 (4) | 0.1561 (3) | 0.0822 (16) | |
O4 | −0.3194 (7) | 0.9500 (4) | 0.1026 (3) | 0.0953 (17) | |
N1 | 0.3873 (5) | 1.0128 (3) | 0.5892 (2) | 0.0384 (11) | |
N2 | 0.2818 (5) | 0.9780 (3) | 0.5145 (2) | 0.0404 (11) | |
H2 | 0.3046 | 0.9146 | 0.5048 | 0.048* | |
N3 | −0.2750 (6) | 0.8932 (5) | 0.1592 (3) | 0.0576 (15) | |
C1 | 0.5601 (6) | 0.9761 (3) | 0.7247 (3) | 0.0320 (12) | |
C2 | 0.6184 (6) | 1.0736 (4) | 0.7435 (3) | 0.0321 (12) | |
C3 | 0.7351 (6) | 1.0935 (4) | 0.8209 (3) | 0.0355 (13) | |
C4 | 0.7889 (6) | 1.0222 (4) | 0.8791 (3) | 0.0383 (13) | |
H4 | 0.8662 | 1.0374 | 0.9303 | 0.046* | |
C5 | 0.7259 (6) | 0.9266 (4) | 0.8603 (3) | 0.0355 (12) | |
C6 | 0.6146 (6) | 0.9041 (3) | 0.7845 (3) | 0.0347 (12) | |
H6 | 0.5747 | 0.8397 | 0.7727 | 0.042* | |
C7 | 0.4506 (7) | 0.9483 (4) | 0.6443 (3) | 0.0388 (13) | |
H7 | 0.4256 | 0.8821 | 0.6323 | 0.047* | |
C8 | 0.1984 (7) | 1.0439 (4) | 0.4568 (3) | 0.0365 (13) | |
C9 | 0.0789 (6) | 0.9994 (4) | 0.3795 (3) | 0.0326 (12) | |
C10 | 0.0309 (7) | 1.0598 (4) | 0.3111 (3) | 0.0397 (13) | |
H10 | 0.0768 | 1.1235 | 0.3141 | 0.048* | |
C11 | −0.0849 (7) | 1.0247 (4) | 0.2391 (3) | 0.0429 (14) | |
H11 | −0.1175 | 1.0645 | 0.1932 | 0.052* | |
C12 | −0.1505 (7) | 0.9317 (4) | 0.2361 (3) | 0.0417 (14) | |
C13 | −0.1068 (7) | 0.8708 (4) | 0.3030 (3) | 0.0498 (15) | |
H13 | −0.1535 | 0.8072 | 0.2993 | 0.060* | |
C14 | 0.0068 (7) | 0.9054 (4) | 0.3751 (3) | 0.0419 (14) | |
H14 | 0.0352 | 0.8656 | 0.4209 | 0.050* | |
O5 | 0.4000 (5) | 0.7107 (3) | 0.9877 (2) | 0.0612 (11) | |
H5 | 0.5128 | 0.7097 | 0.9988 | 0.073* | |
C15 | 0.3336 (8) | 0.8036 (4) | 0.9540 (4) | 0.0627 (18) | |
H15A | 0.3740 | 0.8154 | 0.9069 | 0.094* | |
H15B | 0.3807 | 0.8542 | 0.9934 | 0.094* | |
H15C | 0.2013 | 0.8039 | 0.9389 | 0.094* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.0592 (4) | 0.0348 (4) | 0.0627 (4) | −0.0076 (3) | 0.0125 (3) | −0.0113 (3) |
Br2 | 0.0522 (4) | 0.0489 (4) | 0.0435 (4) | 0.0081 (3) | 0.0087 (3) | 0.0129 (3) |
O1 | 0.064 (2) | 0.031 (2) | 0.038 (2) | 0.0028 (18) | 0.0037 (19) | 0.0001 (17) |
O2 | 0.086 (3) | 0.027 (2) | 0.050 (3) | 0.004 (2) | −0.001 (2) | −0.0070 (19) |
O3 | 0.072 (3) | 0.088 (4) | 0.073 (3) | −0.020 (3) | 0.000 (3) | −0.039 (3) |
O4 | 0.111 (4) | 0.104 (4) | 0.042 (3) | 0.017 (3) | −0.023 (3) | −0.004 (3) |
N1 | 0.035 (2) | 0.043 (3) | 0.034 (3) | 0.001 (2) | 0.006 (2) | −0.008 (2) |
N2 | 0.051 (3) | 0.033 (3) | 0.033 (3) | 0.004 (2) | 0.006 (2) | −0.007 (2) |
N3 | 0.042 (3) | 0.086 (5) | 0.037 (3) | 0.010 (3) | −0.001 (3) | −0.022 (3) |
C1 | 0.032 (3) | 0.028 (3) | 0.034 (3) | −0.001 (2) | 0.007 (2) | −0.001 (2) |
C2 | 0.032 (3) | 0.034 (3) | 0.029 (3) | 0.008 (2) | 0.008 (2) | 0.005 (2) |
C3 | 0.033 (3) | 0.032 (3) | 0.042 (3) | −0.002 (2) | 0.013 (3) | −0.007 (2) |
C4 | 0.032 (3) | 0.044 (4) | 0.032 (3) | 0.003 (2) | −0.001 (2) | −0.010 (3) |
C5 | 0.035 (3) | 0.033 (3) | 0.037 (3) | 0.003 (2) | 0.008 (3) | 0.005 (2) |
C6 | 0.040 (3) | 0.026 (3) | 0.037 (3) | −0.001 (2) | 0.011 (3) | −0.002 (2) |
C7 | 0.045 (3) | 0.035 (3) | 0.035 (3) | −0.001 (3) | 0.010 (3) | −0.005 (3) |
C8 | 0.036 (3) | 0.039 (4) | 0.034 (3) | 0.002 (3) | 0.009 (3) | −0.003 (3) |
C9 | 0.035 (3) | 0.029 (3) | 0.035 (3) | 0.007 (2) | 0.013 (3) | 0.000 (2) |
C10 | 0.044 (3) | 0.035 (3) | 0.039 (3) | 0.008 (3) | 0.010 (3) | −0.002 (3) |
C11 | 0.045 (3) | 0.053 (4) | 0.031 (3) | 0.015 (3) | 0.011 (3) | 0.009 (3) |
C12 | 0.029 (3) | 0.057 (4) | 0.037 (3) | 0.000 (3) | 0.006 (3) | −0.012 (3) |
C13 | 0.058 (4) | 0.043 (4) | 0.043 (4) | −0.006 (3) | 0.006 (3) | −0.004 (3) |
C14 | 0.045 (3) | 0.037 (3) | 0.038 (3) | −0.004 (3) | 0.004 (3) | 0.003 (3) |
O5 | 0.050 (2) | 0.056 (3) | 0.070 (3) | −0.007 (2) | 0.004 (2) | 0.014 (2) |
C15 | 0.058 (4) | 0.048 (4) | 0.079 (5) | 0.002 (3) | 0.015 (4) | 0.007 (3) |
Br1—C3 | 1.890 (5) | C5—C6 | 1.368 (6) |
Br2—C5 | 1.898 (5) | C6—H6 | 0.9300 |
O1—C2 | 1.341 (5) | C7—H7 | 0.9300 |
O1—H1 | 0.8200 | C8—C9 | 1.505 (6) |
O2—C8 | 1.212 (5) | C9—C14 | 1.383 (6) |
O3—N3 | 1.214 (6) | C9—C10 | 1.396 (6) |
O4—N3 | 1.213 (6) | C10—C11 | 1.381 (7) |
N1—C7 | 1.280 (6) | C10—H10 | 0.9300 |
N1—N2 | 1.389 (5) | C11—C12 | 1.355 (7) |
N2—C8 | 1.352 (6) | C11—H11 | 0.9300 |
N2—H2 | 0.9035 | C12—C13 | 1.379 (7) |
N3—C12 | 1.483 (6) | C13—C14 | 1.374 (7) |
C1—C6 | 1.395 (6) | C13—H13 | 0.9300 |
C1—C2 | 1.406 (6) | C14—H14 | 0.9300 |
C1—C7 | 1.444 (6) | O5—C15 | 1.420 (6) |
C2—C3 | 1.398 (6) | O5—H5 | 0.8200 |
C3—C4 | 1.369 (6) | C15—H15A | 0.9600 |
C4—C5 | 1.390 (6) | C15—H15B | 0.9600 |
C4—H4 | 0.9300 | C15—H15C | 0.9600 |
C2—O1—H1 | 109.4 | O2—C8—N2 | 123.5 (5) |
C7—N1—N2 | 116.4 (4) | O2—C8—C9 | 121.8 (5) |
C8—N2—N1 | 118.5 (4) | N2—C8—C9 | 114.7 (5) |
C8—N2—H2 | 124.8 | C14—C9—C10 | 119.7 (5) |
N1—N2—H2 | 114.0 | C14—C9—C8 | 123.2 (5) |
O4—N3—O3 | 123.7 (5) | C10—C9—C8 | 117.0 (5) |
O4—N3—C12 | 116.8 (6) | C11—C10—C9 | 119.8 (5) |
O3—N3—C12 | 119.5 (6) | C11—C10—H10 | 120.1 |
C6—C1—C2 | 119.1 (4) | C9—C10—H10 | 120.1 |
C6—C1—C7 | 119.3 (5) | C12—C11—C10 | 119.2 (5) |
C2—C1—C7 | 121.5 (4) | C12—C11—H11 | 120.4 |
O1—C2—C3 | 118.2 (4) | C10—C11—H11 | 120.4 |
O1—C2—C1 | 123.6 (4) | C11—C12—C13 | 122.2 (5) |
C3—C2—C1 | 118.2 (4) | C11—C12—N3 | 119.6 (5) |
C4—C3—C2 | 122.2 (5) | C13—C12—N3 | 118.2 (5) |
C4—C3—Br1 | 118.4 (4) | C14—C13—C12 | 119.1 (5) |
C2—C3—Br1 | 119.3 (4) | C14—C13—H13 | 120.5 |
C3—C4—C5 | 118.9 (4) | C12—C13—H13 | 120.5 |
C3—C4—H4 | 120.6 | C13—C14—C9 | 120.0 (5) |
C5—C4—H4 | 120.6 | C13—C14—H14 | 120.0 |
C6—C5—C4 | 120.5 (4) | C9—C14—H14 | 120.0 |
C6—C5—Br2 | 120.2 (4) | C15—O5—H5 | 109.4 |
C4—C5—Br2 | 119.3 (4) | O5—C15—H15A | 109.5 |
C5—C6—C1 | 121.1 (5) | O5—C15—H15B | 109.5 |
C5—C6—H6 | 119.4 | H15A—C15—H15B | 109.5 |
C1—C6—H6 | 119.4 | O5—C15—H15C | 109.5 |
N1—C7—C1 | 121.3 (5) | H15A—C15—H15C | 109.5 |
N1—C7—H7 | 119.4 | H15B—C15—H15C | 109.5 |
C1—C7—H7 | 119.4 |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···N1 | 0.82 | 1.94 | 2.642 (5) | 143 |
N2—H2···O5i | 0.90 | 1.91 | 2.800 (5) | 169 |
O5—H5···O2ii | 0.82 | 2.24 | 2.991 (6) | 153 |
O5—H5···Br2 | 0.82 | 3.09 | 3.708 (4) | 134 |
Symmetry codes: (i) x, −y+3/2, z−1/2; (ii) −x+1, y−1/2, −z+3/2. |
Experimental details
Crystal data | |
Chemical formula | C14H9Br2N3O4·CH4O |
Mr | 475.10 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 298 |
a, b, c (Å) | 7.576 (2), 13.602 (2), 17.230 (3) |
β (°) | 106.816 (3) |
V (Å3) | 1699.6 (6) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 4.80 |
Crystal size (mm) | 0.30 × 0.27 × 0.27 |
Data collection | |
Diffractometer | Bruker SMART 1K CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2004) |
Tmin, Tmax | 0.327, 0.357 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 10168, 3685, 2011 |
Rint | 0.075 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.049, 0.103, 1.00 |
No. of reflections | 3685 |
No. of parameters | 227 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.53, −0.52 |
Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 2001), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···N1 | 0.82 | 1.94 | 2.642 (5) | 142.6 |
N2—H2···O5i | 0.90 | 1.91 | 2.800 (5) | 169.1 |
O5—H5···O2ii | 0.82 | 2.24 | 2.991 (6) | 152.5 |
O5—H5···Br2 | 0.82 | 3.09 | 3.708 (4) | 134.3 |
Symmetry codes: (i) x, −y+3/2, z−1/2; (ii) −x+1, y−1/2, −z+3/2. |
Acknowledgements
This project was sponsored by the Natural Development Foundation of Hebei Province (B2011204051), the Development Foundation of the Department of Education of Hebei Province (2010137) and the Research Development Foundation of the Agricultural University of Hebei.
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.
Benzohydrazide compounds are well known for their biological activities (El-Sayed et al., 2011; Horiuchi et al., 2009). In addition, benzohydrazide compounds have also been used as versatile ligands in coordination chemistry (El-Dissouky et al., 2010). As a contribution to a structural study on hydrazone compounds, we present here the crystal structure of the title compound.
The compound contains a benzohydrazide molecule and a methanol molecule, as shown in Fig. 1. The bond distances and angles are within normal ranges (Allen et al., 1987) and are agree well with the corresponding bond distances and angles reported in closely related compounds (Suleiman Gwaram et al., 2010; Dai & Mao, 2010; Ban, 2010). The benzohydrazide molecule is nearly planar, with a maximum deviation of 0.126 (2) Å. The mean planes of the two benzene rings make a dihedral angle of 9.3 (3)°.
In the crystal structure of the title compound, the adjacent two benzohydrazide molecules are linked by two methanol molecules through intermolecular O—H···O and N—H···O hydrogen bonds, to form a dimer (Table 1, Fig. 2).