organic compounds
3-Chloro-N′-(3,5-dibromo-2-hydroxybenzylidene)benzohydrazide methanol monosolvate
aSchool of Chemical Engineering, Changchun University of Technology, Changchun 130012, People's Republic of China
*Correspondence e-mail: cooperationwell@126.com
The title Schiff base compound, C14H9Br2ClN2O2·CH3OH, features an intramolecular O—H⋯N hydrogen bond, which contributes to the planarity of the molecule: the dihedral angle between the two benzene rings is 4.6 (2)°. In the crystal, pairs of adjacent molecules are linked through intermolecular N—H⋯O and O—H⋯O hydrogen bonds, forming dimers. The methanol solvent molecule is linked by intermolecular O—H⋯O hydrogen bonds.
Related literature
For Schiff base compounds derived from the reaction of et al. (2007); Dinda et al. (2002); Podyachev et al. (2007). For reference bond lengths, see: Allen et al. (1987).
with benzohydrazides, see: PouralimardanExperimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2005); cell SAINT (Bruker, 2005); 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/S1600536811000742/hg2785sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811000742/hg2785Isup2.hkl
3,5-dibromo-2-hydroxybenzaldehyde (0.280 g, 1 mmol) and 3-chlorobenzohydrazide (0.171 g, 1 mmol) were dissolved in 30 ml absolute methanol. The mixture was stirred at reflux for 10 min, and cooled to room temperature. The clear colorless solution was left to slow evaporation in air for three days, yielding colorless block-shaped crystals, which were collected by filtration and washed with methanol.
The amino H atom was located from a difference Fourier map and refined isotropically, with the N—H distance restrained to 0.90 (1) Å. The other H atoms were positioned geometrically and refined using the riding-model approximation, with C—H = 0.93 or 0.96 Å, and O—H = 0.82 Å, and Uiso(H) = 1.2Ueq(C) or Uiso(H) = 1.5Ueq(C15 and O).
Data collection: APEX2 (Bruker, 2005); cell
SAINT (Bruker, 2005); data reduction: SAINT (Bruker, 2005); 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).C14H9Br2ClN2O2·CH4O | Z = 2 |
Mr = 464.54 | F(000) = 456 |
Triclinic, P1 | Dx = 1.825 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 8.8560 (18) Å | Cell parameters from 2168 reflections |
b = 9.3810 (19) Å | θ = 2.5–25.9° |
c = 11.205 (2) Å | µ = 4.97 mm−1 |
α = 95.634 (3)° | T = 298 K |
β = 110.952 (3)° | Block, colorless |
γ = 99.392 (3)° | 0.18 × 0.17 × 0.17 mm |
V = 845.2 (3) Å3 |
Bruker APEXII CCD area-detector diffractometer | 3504 independent reflections |
Radiation source: fine-focus sealed tube | 2423 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.036 |
ω scans | θmax = 27.0°, θmin = 2.0° |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | h = −11→11 |
Tmin = 0.468, Tmax = 0.486 | k = −11→11 |
7213 measured reflections | l = −14→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)] = 0.044 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.117 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | w = 1/[σ2(Fo2) + (0.050P)2 + 0.0441P] where P = (Fo2 + 2Fc2)/3 |
3504 reflections | (Δ/σ)max < 0.001 |
214 parameters | Δρmax = 0.61 e Å−3 |
1 restraint | Δρmin = −0.71 e Å−3 |
C14H9Br2ClN2O2·CH4O | γ = 99.392 (3)° |
Mr = 464.54 | V = 845.2 (3) Å3 |
Triclinic, P1 | Z = 2 |
a = 8.8560 (18) Å | Mo Kα radiation |
b = 9.3810 (19) Å | µ = 4.97 mm−1 |
c = 11.205 (2) Å | T = 298 K |
α = 95.634 (3)° | 0.18 × 0.17 × 0.17 mm |
β = 110.952 (3)° |
Bruker APEXII CCD area-detector diffractometer | 3504 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | 2423 reflections with I > 2σ(I) |
Tmin = 0.468, Tmax = 0.486 | Rint = 0.036 |
7213 measured reflections |
R[F2 > 2σ(F2)] = 0.044 | 1 restraint |
wR(F2) = 0.117 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | Δρmax = 0.61 e Å−3 |
3504 reflections | Δρmin = −0.71 e Å−3 |
214 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 | 0.29523 (6) | 0.00200 (5) | 1.38779 (5) | 0.0684 (2) | |
Br2 | −0.39950 (6) | −0.16848 (6) | 1.18451 (5) | 0.0754 (2) | |
Cl1 | −0.12376 (13) | 0.68386 (11) | 0.50390 (9) | 0.0538 (3) | |
N1 | 0.0467 (4) | 0.2942 (3) | 0.9916 (3) | 0.0375 (7) | |
N2 | 0.0405 (4) | 0.3784 (3) | 0.8978 (3) | 0.0386 (7) | |
O1 | 0.2266 (3) | 0.1922 (3) | 1.1849 (3) | 0.0496 (7) | |
H1 | 0.2078 | 0.2450 | 1.1295 | 0.074* | |
O2 | 0.3090 (3) | 0.4803 (3) | 1.0115 (3) | 0.0533 (7) | |
O3 | 0.2945 (3) | 0.6052 (3) | 0.2405 (3) | 0.0578 (8) | |
H3 | 0.3060 | 0.5530 | 0.1826 | 0.087* | |
C1 | −0.0709 (5) | 0.1171 (4) | 1.0859 (3) | 0.0338 (8) | |
C2 | 0.0834 (4) | 0.1111 (4) | 1.1785 (3) | 0.0346 (8) | |
C3 | 0.0872 (4) | 0.0173 (4) | 1.2683 (3) | 0.0388 (8) | |
C4 | −0.0538 (5) | −0.0650 (4) | 1.2702 (3) | 0.0439 (9) | |
H4 | −0.0484 | −0.1259 | 1.3316 | 0.053* | |
C5 | −0.2040 (5) | −0.0563 (4) | 1.1797 (4) | 0.0420 (9) | |
C6 | −0.2136 (5) | 0.0304 (4) | 1.0871 (3) | 0.0392 (8) | |
H6 | −0.3162 | 0.0315 | 1.0246 | 0.047* | |
C7 | −0.0839 (4) | 0.2091 (4) | 0.9867 (3) | 0.0356 (8) | |
H7 | −0.1856 | 0.2058 | 0.9212 | 0.043* | |
C8 | 0.1846 (4) | 0.4709 (4) | 0.9153 (3) | 0.0349 (8) | |
C9 | 0.1854 (4) | 0.5574 (4) | 0.8114 (3) | 0.0341 (8) | |
C10 | 0.0427 (4) | 0.5745 (3) | 0.7138 (3) | 0.0349 (8) | |
H10 | −0.0608 | 0.5274 | 0.7088 | 0.042* | |
C11 | 0.0560 (5) | 0.6615 (4) | 0.6248 (3) | 0.0388 (8) | |
C12 | 0.2061 (5) | 0.7299 (4) | 0.6284 (4) | 0.0503 (10) | |
H12 | 0.2126 | 0.7875 | 0.5667 | 0.060* | |
C13 | 0.3475 (5) | 0.7129 (5) | 0.7242 (4) | 0.0560 (11) | |
H13 | 0.4504 | 0.7598 | 0.7279 | 0.067* | |
C14 | 0.3379 (5) | 0.6269 (4) | 0.8146 (4) | 0.0459 (9) | |
H14 | 0.4345 | 0.6151 | 0.8785 | 0.055* | |
C15 | 0.4103 (6) | 0.5924 (6) | 0.3610 (4) | 0.0718 (14) | |
H15A | 0.5198 | 0.6338 | 0.3671 | 0.108* | |
H15B | 0.4020 | 0.4907 | 0.3691 | 0.108* | |
H15C | 0.3882 | 0.6438 | 0.4293 | 0.108* | |
H2 | −0.060 (3) | 0.383 (5) | 0.842 (4) | 0.086* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.0442 (3) | 0.0852 (4) | 0.0707 (3) | 0.0200 (2) | 0.0048 (2) | 0.0458 (3) |
Br2 | 0.0454 (3) | 0.0852 (4) | 0.0891 (4) | −0.0070 (2) | 0.0186 (3) | 0.0470 (3) |
Cl1 | 0.0495 (6) | 0.0638 (6) | 0.0440 (6) | 0.0160 (5) | 0.0074 (5) | 0.0251 (5) |
N1 | 0.0416 (18) | 0.0382 (16) | 0.0383 (17) | 0.0134 (14) | 0.0164 (15) | 0.0195 (13) |
N2 | 0.0362 (18) | 0.0394 (16) | 0.0402 (18) | 0.0099 (14) | 0.0104 (15) | 0.0198 (14) |
O1 | 0.0347 (15) | 0.0582 (17) | 0.0538 (17) | 0.0050 (13) | 0.0113 (13) | 0.0294 (13) |
O2 | 0.0344 (15) | 0.078 (2) | 0.0455 (16) | 0.0117 (14) | 0.0079 (13) | 0.0314 (14) |
O3 | 0.0395 (16) | 0.079 (2) | 0.0466 (17) | 0.0142 (15) | 0.0039 (14) | 0.0187 (15) |
C1 | 0.042 (2) | 0.0317 (18) | 0.0286 (18) | 0.0103 (15) | 0.0115 (16) | 0.0120 (14) |
C2 | 0.0297 (19) | 0.0355 (19) | 0.039 (2) | 0.0093 (15) | 0.0112 (17) | 0.0104 (15) |
C3 | 0.036 (2) | 0.041 (2) | 0.0352 (19) | 0.0115 (17) | 0.0050 (17) | 0.0148 (16) |
C4 | 0.046 (2) | 0.041 (2) | 0.046 (2) | 0.0125 (18) | 0.015 (2) | 0.0217 (18) |
C5 | 0.037 (2) | 0.041 (2) | 0.046 (2) | 0.0011 (17) | 0.0141 (19) | 0.0136 (17) |
C6 | 0.033 (2) | 0.042 (2) | 0.040 (2) | 0.0082 (17) | 0.0081 (17) | 0.0134 (16) |
C7 | 0.033 (2) | 0.0370 (19) | 0.0334 (19) | 0.0102 (16) | 0.0061 (16) | 0.0127 (15) |
C8 | 0.0312 (19) | 0.0416 (19) | 0.036 (2) | 0.0130 (16) | 0.0136 (17) | 0.0146 (15) |
C9 | 0.036 (2) | 0.0349 (19) | 0.0340 (19) | 0.0109 (16) | 0.0136 (17) | 0.0081 (15) |
C10 | 0.032 (2) | 0.039 (2) | 0.0345 (19) | 0.0081 (16) | 0.0123 (17) | 0.0110 (16) |
C11 | 0.043 (2) | 0.038 (2) | 0.036 (2) | 0.0135 (17) | 0.0119 (18) | 0.0121 (16) |
C12 | 0.054 (3) | 0.054 (2) | 0.056 (2) | 0.018 (2) | 0.028 (2) | 0.029 (2) |
C13 | 0.037 (2) | 0.068 (3) | 0.070 (3) | 0.008 (2) | 0.026 (2) | 0.031 (2) |
C14 | 0.031 (2) | 0.057 (2) | 0.052 (2) | 0.0115 (18) | 0.0152 (19) | 0.0227 (19) |
C15 | 0.045 (3) | 0.104 (4) | 0.055 (3) | 0.007 (3) | 0.005 (2) | 0.031 (3) |
Br1—C3 | 1.889 (3) | C4—H4 | 0.9300 |
Br2—C5 | 1.895 (4) | C5—C6 | 1.368 (5) |
Cl1—C11 | 1.743 (4) | C6—H6 | 0.9300 |
N1—C7 | 1.274 (4) | C7—H7 | 0.9300 |
N1—N2 | 1.367 (4) | C8—C9 | 1.484 (4) |
N2—C8 | 1.359 (5) | C9—C14 | 1.387 (5) |
N2—H2 | 0.90 (4) | C9—C10 | 1.389 (4) |
O1—C2 | 1.342 (4) | C10—C11 | 1.374 (4) |
O1—H1 | 0.8200 | C10—H10 | 0.9300 |
O2—C8 | 1.218 (4) | C11—C12 | 1.363 (6) |
O3—C15 | 1.404 (5) | C12—C13 | 1.373 (6) |
O3—H3 | 0.8200 | C12—H12 | 0.9300 |
C1—C6 | 1.392 (5) | C13—C14 | 1.373 (5) |
C1—C2 | 1.403 (5) | C13—H13 | 0.9300 |
C1—C7 | 1.457 (4) | C14—H14 | 0.9300 |
C2—C3 | 1.396 (5) | C15—H15A | 0.9600 |
C3—C4 | 1.366 (5) | C15—H15B | 0.9600 |
C4—C5 | 1.375 (5) | C15—H15C | 0.9600 |
C7—N1—N2 | 120.4 (3) | O2—C8—N2 | 121.2 (3) |
C8—N2—N1 | 115.9 (3) | O2—C8—C9 | 121.3 (3) |
C8—N2—H2 | 125 (3) | N2—C8—C9 | 117.4 (3) |
N1—N2—H2 | 118 (3) | C14—C9—C10 | 118.8 (3) |
C2—O1—H1 | 109.5 | C14—C9—C8 | 117.5 (3) |
C15—O3—H3 | 109.5 | C10—C9—C8 | 123.7 (3) |
C6—C1—C2 | 119.2 (3) | C11—C10—C9 | 119.4 (3) |
C6—C1—C7 | 119.5 (3) | C11—C10—H10 | 120.3 |
C2—C1—C7 | 121.3 (3) | C9—C10—H10 | 120.3 |
O1—C2—C3 | 118.8 (3) | C12—C11—C10 | 121.7 (3) |
O1—C2—C1 | 123.0 (3) | C12—C11—Cl1 | 119.3 (3) |
C3—C2—C1 | 118.3 (3) | C10—C11—Cl1 | 119.0 (3) |
C4—C3—C2 | 122.0 (3) | C11—C12—C13 | 119.2 (3) |
C4—C3—Br1 | 119.6 (3) | C11—C12—H12 | 120.4 |
C2—C3—Br1 | 118.4 (3) | C13—C12—H12 | 120.4 |
C3—C4—C5 | 118.8 (3) | C12—C13—C14 | 120.4 (4) |
C3—C4—H4 | 120.6 | C12—C13—H13 | 119.8 |
C5—C4—H4 | 120.6 | C14—C13—H13 | 119.8 |
C6—C5—C4 | 121.2 (3) | C13—C14—C9 | 120.5 (4) |
C6—C5—Br2 | 120.2 (3) | C13—C14—H14 | 119.7 |
C4—C5—Br2 | 118.6 (3) | C9—C14—H14 | 119.7 |
C5—C6—C1 | 120.4 (4) | O3—C15—H15A | 109.5 |
C5—C6—H6 | 119.8 | O3—C15—H15B | 109.5 |
C1—C6—H6 | 119.8 | H15A—C15—H15B | 109.5 |
N1—C7—C1 | 118.7 (3) | O3—C15—H15C | 109.5 |
N1—C7—H7 | 120.6 | H15A—C15—H15C | 109.5 |
C1—C7—H7 | 120.6 | H15B—C15—H15C | 109.5 |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O3i | 0.90 (4) | 1.98 (2) | 2.852 (4) | 165 (5) |
O3—H3···O2ii | 0.82 | 1.98 | 2.769 (4) | 161 |
O1—H1···N1 | 0.82 | 1.85 | 2.566 (4) | 146 |
Symmetry codes: (i) −x, −y+1, −z+1; (ii) x, y, z−1. |
Experimental details
Crystal data | |
Chemical formula | C14H9Br2ClN2O2·CH4O |
Mr | 464.54 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 298 |
a, b, c (Å) | 8.8560 (18), 9.3810 (19), 11.205 (2) |
α, β, γ (°) | 95.634 (3), 110.952 (3), 99.392 (3) |
V (Å3) | 845.2 (3) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 4.97 |
Crystal size (mm) | 0.18 × 0.17 × 0.17 |
Data collection | |
Diffractometer | Bruker APEXII CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2005) |
Tmin, Tmax | 0.468, 0.486 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7213, 3504, 2423 |
Rint | 0.036 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.044, 0.117, 1.03 |
No. of reflections | 3504 |
No. of parameters | 214 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.61, −0.71 |
Computer programs: APEX2 (Bruker, 2005), SAINT (Bruker, 2005), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O3i | 0.90 (4) | 1.976 (17) | 2.852 (4) | 165 (5) |
O3—H3···O2ii | 0.82 | 1.98 | 2.769 (4) | 161 |
O1—H1···N1 | 0.82 | 1.85 | 2.566 (4) | 146 |
Symmetry codes: (i) −x, −y+1, −z+1; (ii) x, y, z−1. |
References
Allen, F. H., Kennard, O., Watson, D. G., Brammer, L., Orpen, A. G. & Taylor, R. (1987). J. Chem. Soc. Perkin Trans. 2, pp. S1–19. CrossRef Web of Science Google Scholar
Bruker (2005). APEX2, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
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In the last few years, a number of Schiff bases derived from the reaction of aldehydes with benzohydrazides were prepared and structurally characterized (Pouralimardan et al., 2007; Dinda et al., 2002). As a continuation of the work, in the present paper, the structure of the title Schiff base compound, (Fig. 1) is reported.
In the title compound, there is an O—H···N hydrogen bond, which contributes to the planarity of the molecule. The dihedral angle between the two benzene rings is 4.6 (2)°. All the bond lengths are within normal values (Allen et al., 1987). The adjacent two molecules are linked through intermolecular N—H···O and O—H···O hydrogen bonds (Table 1) to form a dimer (Fig. 2). The methanol solvate is linked by intermolecular O—H···O hydrogen bonds.