organic compounds
(E)-N′-(4-Bromobenzylidene)-3,4-dihydroxybenzohydrazide monohydrate
aLiaoning University of Traditional Chinese Medicine, Shenyang, 110032, People's Republic of China, and bDalian Medical University, Liaoning 116044, People's Republic of China
*Correspondence e-mail: dalianzhongmintao@163.com, syzhaody@163.com
In the title compound, C14H11BrN2O3·H2O, the dihedral angle between the two benzene rings of the Schiff base is 22.7 (2)° and an intramolecular O—H⋯O hydrogen bond is observed. In the crystal, molecules are linked into layers parallel to the ab plane by O—H⋯O and N—H⋯O hydrogen bonds.
Related literature
For the synthesis of Schiff base compounds from the reaction of et al. (2008); Suresh et al. (2007). For a related structure, see: Ma et al. (2008). For reference structural data, see: Allen et al. (1987).
with primary see: HerrickExperimental
Crystal data
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Refinement
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Data collection: SMART (Siemens, 1996); cell SAINT (Siemens, 1996); 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
10.1107/S1600536809036964/hb5092sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809036964/hb5092Isup2.hkl
4-Bromosalicylaldehyde (0.1 mmol, 15.6 mg) and 3,4-dihydroxybenzoic acid hydrazide (0.1 mmol, 16.8 mg) were dissolved in a 95% ethanol solution (10 ml). The mixture was stirred at room temperature to give a clear colorless solution. Light yellow blokcs of (I) were formed by gradual evaporation of the solvent over a period of nine days at room temperature.
All H atoms were placed in geometrically idealized positions (C—H = 0.93 Å, O—H = 0.82–0.85 Å and N—H = 0.86 Å) and refned as riding with Uiso(H) = 1.2Ueq(C,N) or 1.5Ueq(O).
Data collection: SMART (Siemens, 1996); cell
SAINT (Siemens, 1996); data reduction: SAINT (Siemens, 1996); 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).Fig. 1. The molecular structure of (I), with displacement ellipsoids drawn at the 30% probability level. The dashed lines indicate hydrogen bonds. | |
Fig. 2. The molecular packing of (I). Intermolecular hydrogen bonds are shown as dashed lines. H atoms not involved in the hydrogen bonds have been omitted for clarity. |
C14H11BrN2O3·H2O | F(000) = 712 |
Mr = 353.17 | Dx = 1.659 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2538 reflections |
a = 7.8119 (5) Å | θ = 2.7–24.2° |
b = 13.8504 (9) Å | µ = 2.92 mm−1 |
c = 13.0764 (9) Å | T = 295 K |
β = 91.708 (1)° | Block, light yellow |
V = 1414.21 (16) Å3 | 0.18 × 0.16 × 0.15 mm |
Z = 4 |
Siemens SMART CCD diffractometer | 2511 independent reflections |
Radiation source: fine-focus sealed tube | 1810 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.096 |
ϕ and ω scans | θmax = 25.0°, θmin = 2.1° |
Absorption correction: multi-scan SADABS (Sheldrick, 1996) | h = −9→9 |
Tmin = 0.621, Tmax = 0.668 | k = −12→16 |
7384 measured reflections | l = −12→15 |
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) = 0.116 | H-atom parameters constrained |
S = 1.02 | w = 1/[σ2(Fo2) + (0.053P)2 + 0.0453P] where P = (Fo2 + 2Fc2)/3 |
2511 reflections | (Δ/σ)max < 0.001 |
192 parameters | Δρmax = 0.76 e Å−3 |
0 restraints | Δρmin = −0.69 e Å−3 |
C14H11BrN2O3·H2O | V = 1414.21 (16) Å3 |
Mr = 353.17 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 7.8119 (5) Å | µ = 2.92 mm−1 |
b = 13.8504 (9) Å | T = 295 K |
c = 13.0764 (9) Å | 0.18 × 0.16 × 0.15 mm |
β = 91.708 (1)° |
Siemens SMART CCD diffractometer | 2511 independent reflections |
Absorption correction: multi-scan SADABS (Sheldrick, 1996) | 1810 reflections with I > 2σ(I) |
Tmin = 0.621, Tmax = 0.668 | Rint = 0.096 |
7384 measured reflections |
R[F2 > 2σ(F2)] = 0.044 | 0 restraints |
wR(F2) = 0.116 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.76 e Å−3 |
2511 reflections | Δρmin = −0.69 e Å−3 |
192 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 | 1.08523 (6) | 0.16874 (3) | 0.20512 (4) | 0.0710 (2) | |
O1 | 0.2102 (4) | 1.04968 (18) | −0.1288 (2) | 0.0561 (7) | |
H1 | 0.2496 | 1.0583 | −0.1855 | 0.084* | |
O2 | 0.4375 (4) | 0.94026 (17) | −0.23369 (19) | 0.0590 (8) | |
H2 | 0.4882 | 0.8962 | −0.2617 | 0.089* | |
O3 | 0.4997 (3) | 0.72271 (16) | 0.16417 (17) | 0.0439 (6) | |
O4 | 0.4061 (3) | 0.12989 (17) | 0.70360 (19) | 0.0500 (7) | |
H15 | 0.4361 | 0.1660 | 0.7536 | 0.075* | |
H16 | 0.4622 | 0.0787 | 0.7172 | 0.075* | |
N1 | 0.5896 (3) | 0.66104 (17) | 0.0155 (2) | 0.0349 (6) | |
H1A | 0.5932 | 0.6652 | −0.0500 | 0.042* | |
N2 | 0.6628 (3) | 0.58384 (19) | 0.0659 (2) | 0.0364 (7) | |
C1 | 0.4411 (4) | 0.8144 (2) | 0.0139 (2) | 0.0310 (7) | |
C2 | 0.4779 (4) | 0.8365 (2) | −0.0866 (3) | 0.0343 (8) | |
H2A | 0.5545 | 0.7982 | −0.1215 | 0.041* | |
C3 | 0.4030 (5) | 0.9141 (2) | −0.1350 (3) | 0.0379 (8) | |
C4 | 0.2885 (4) | 0.9734 (2) | −0.0836 (3) | 0.0375 (8) | |
C5 | 0.2535 (4) | 0.9517 (2) | 0.0159 (3) | 0.0435 (9) | |
H5 | 0.1770 | 0.9901 | 0.0508 | 0.052* | |
C6 | 0.3290 (4) | 0.8743 (2) | 0.0652 (3) | 0.0378 (8) | |
H6 | 0.3050 | 0.8619 | 0.1331 | 0.045* | |
C7 | 0.5118 (4) | 0.7306 (2) | 0.0699 (3) | 0.0335 (7) | |
C8 | 0.7358 (4) | 0.5211 (2) | 0.0103 (3) | 0.0357 (8) | |
H8 | 0.7339 | 0.5285 | −0.0604 | 0.043* | |
C9 | 0.8220 (4) | 0.4381 (2) | 0.0570 (3) | 0.0344 (8) | |
C10 | 0.8858 (4) | 0.3655 (2) | −0.0043 (3) | 0.0419 (9) | |
H10 | 0.8742 | 0.3708 | −0.0750 | 0.050* | |
C11 | 0.9666 (4) | 0.2852 (2) | 0.0382 (3) | 0.0456 (9) | |
H11 | 1.0085 | 0.2367 | −0.0034 | 0.055* | |
C12 | 0.9835 (4) | 0.2786 (2) | 0.1423 (3) | 0.0423 (9) | |
C13 | 0.9267 (5) | 0.3516 (3) | 0.2044 (3) | 0.0454 (9) | |
H13 | 0.9435 | 0.3474 | 0.2750 | 0.054* | |
C14 | 0.8455 (4) | 0.4301 (2) | 0.1623 (3) | 0.0412 (8) | |
H14 | 0.8056 | 0.4786 | 0.2045 | 0.049* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.0630 (3) | 0.0516 (3) | 0.0988 (5) | 0.02020 (19) | 0.0116 (3) | 0.0259 (2) |
O1 | 0.0711 (18) | 0.0459 (15) | 0.0516 (17) | 0.0227 (13) | 0.0093 (14) | 0.0098 (13) |
O2 | 0.114 (2) | 0.0323 (13) | 0.0316 (14) | 0.0185 (14) | 0.0206 (14) | 0.0067 (11) |
O3 | 0.0707 (16) | 0.0354 (13) | 0.0260 (14) | 0.0040 (11) | 0.0064 (12) | −0.0001 (10) |
O4 | 0.0816 (18) | 0.0311 (12) | 0.0372 (14) | 0.0045 (12) | −0.0024 (13) | 0.0006 (11) |
N1 | 0.0483 (16) | 0.0296 (14) | 0.0268 (15) | 0.0035 (12) | 0.0031 (12) | 0.0025 (12) |
N2 | 0.0420 (16) | 0.0286 (14) | 0.0386 (17) | 0.0000 (12) | 0.0029 (13) | 0.0034 (13) |
C1 | 0.0393 (17) | 0.0260 (15) | 0.0277 (18) | −0.0034 (13) | 0.0021 (14) | −0.0021 (14) |
C2 | 0.0491 (19) | 0.0243 (16) | 0.0302 (19) | 0.0000 (14) | 0.0104 (15) | −0.0018 (14) |
C3 | 0.058 (2) | 0.0268 (17) | 0.0290 (19) | −0.0029 (15) | 0.0086 (16) | 0.0006 (15) |
C4 | 0.0461 (19) | 0.0287 (17) | 0.038 (2) | 0.0047 (15) | 0.0014 (16) | −0.0007 (15) |
C5 | 0.050 (2) | 0.040 (2) | 0.042 (2) | 0.0093 (16) | 0.0136 (17) | −0.0038 (17) |
C6 | 0.048 (2) | 0.0382 (18) | 0.0273 (18) | 0.0036 (16) | 0.0103 (15) | 0.0009 (15) |
C7 | 0.0406 (18) | 0.0287 (17) | 0.031 (2) | −0.0053 (14) | 0.0025 (15) | −0.0014 (15) |
C8 | 0.0424 (18) | 0.0322 (18) | 0.0326 (19) | −0.0023 (15) | 0.0033 (15) | 0.0000 (15) |
C9 | 0.0321 (16) | 0.0298 (17) | 0.042 (2) | −0.0036 (13) | 0.0041 (15) | 0.0006 (15) |
C10 | 0.046 (2) | 0.0390 (19) | 0.041 (2) | −0.0008 (16) | 0.0039 (17) | −0.0066 (17) |
C11 | 0.0411 (19) | 0.0340 (19) | 0.062 (3) | 0.0026 (15) | 0.0049 (18) | −0.0069 (18) |
C12 | 0.0335 (18) | 0.0343 (19) | 0.059 (3) | 0.0005 (14) | 0.0078 (17) | 0.0066 (18) |
C13 | 0.047 (2) | 0.052 (2) | 0.037 (2) | 0.0060 (17) | 0.0031 (17) | 0.0067 (18) |
C14 | 0.046 (2) | 0.0391 (19) | 0.039 (2) | 0.0044 (16) | 0.0041 (16) | −0.0044 (16) |
Br1—C12 | 1.893 (3) | C3—C4 | 1.402 (5) |
O1—C4 | 1.348 (4) | C4—C5 | 1.372 (5) |
O1—H1 | 0.8200 | C5—C6 | 1.374 (5) |
O2—C3 | 1.374 (4) | C5—H5 | 0.9300 |
O2—H2 | 0.8200 | C6—H6 | 0.9300 |
O3—C7 | 1.244 (4) | C8—C9 | 1.458 (5) |
O4—H15 | 0.8499 | C8—H8 | 0.9300 |
O4—H16 | 0.8500 | C9—C10 | 1.387 (5) |
N1—C7 | 1.353 (4) | C9—C14 | 1.387 (5) |
N1—N2 | 1.372 (4) | C10—C11 | 1.387 (5) |
N1—H1A | 0.8600 | C10—H10 | 0.9300 |
N2—C8 | 1.277 (4) | C11—C12 | 1.367 (5) |
C1—C2 | 1.387 (5) | C11—H11 | 0.9300 |
C1—C6 | 1.393 (4) | C12—C13 | 1.378 (5) |
C1—C7 | 1.471 (4) | C13—C14 | 1.367 (5) |
C2—C3 | 1.369 (5) | C13—H13 | 0.9300 |
C2—H2A | 0.9300 | C14—H14 | 0.9300 |
C4—O1—H1 | 109.5 | O3—C7—N1 | 120.5 (3) |
C3—O2—H2 | 109.5 | O3—C7—C1 | 121.6 (3) |
H15—O4—H16 | 101.6 | N1—C7—C1 | 117.9 (3) |
C7—N1—N2 | 119.3 (3) | N2—C8—C9 | 120.4 (3) |
C7—N1—H1A | 120.3 | N2—C8—H8 | 119.8 |
N2—N1—H1A | 120.3 | C9—C8—H8 | 119.8 |
C8—N2—N1 | 116.3 (3) | C10—C9—C14 | 118.4 (3) |
C2—C1—C6 | 118.4 (3) | C10—C9—C8 | 119.9 (3) |
C2—C1—C7 | 124.1 (3) | C14—C9—C8 | 121.6 (3) |
C6—C1—C7 | 117.5 (3) | C11—C10—C9 | 121.1 (3) |
C3—C2—C1 | 120.9 (3) | C11—C10—H10 | 119.4 |
C3—C2—H2A | 119.5 | C9—C10—H10 | 119.4 |
C1—C2—H2A | 119.5 | C12—C11—C10 | 118.8 (3) |
C2—C3—O2 | 123.3 (3) | C12—C11—H11 | 120.6 |
C2—C3—C4 | 120.6 (3) | C10—C11—H11 | 120.6 |
O2—C3—C4 | 116.1 (3) | C11—C12—C13 | 121.0 (3) |
O1—C4—C5 | 119.2 (3) | C11—C12—Br1 | 120.8 (3) |
O1—C4—C3 | 122.5 (3) | C13—C12—Br1 | 118.2 (3) |
C5—C4—C3 | 118.3 (3) | C14—C13—C12 | 119.9 (3) |
C4—C5—C6 | 121.4 (3) | C14—C13—H13 | 120.0 |
C4—C5—H5 | 119.3 | C12—C13—H13 | 120.0 |
C6—C5—H5 | 119.3 | C13—C14—C9 | 120.7 (3) |
C5—C6—C1 | 120.4 (3) | C13—C14—H14 | 119.7 |
C5—C6—H6 | 119.8 | C9—C14—H14 | 119.7 |
C1—C6—H6 | 119.8 | ||
C7—N1—N2—C8 | −179.3 (3) | C6—C1—C7—O3 | −13.4 (5) |
C6—C1—C2—C3 | −1.4 (5) | C2—C1—C7—N1 | −13.4 (5) |
C7—C1—C2—C3 | 177.9 (3) | C6—C1—C7—N1 | 165.9 (3) |
C1—C2—C3—O2 | 178.7 (3) | N1—N2—C8—C9 | 178.0 (3) |
C1—C2—C3—C4 | 0.6 (5) | N2—C8—C9—C10 | 173.5 (3) |
C2—C3—C4—O1 | −179.1 (3) | N2—C8—C9—C14 | −7.8 (5) |
O2—C3—C4—O1 | 2.7 (5) | C14—C9—C10—C11 | 2.0 (5) |
C2—C3—C4—C5 | −0.2 (5) | C8—C9—C10—C11 | −179.3 (3) |
O2—C3—C4—C5 | −178.4 (3) | C9—C10—C11—C12 | −0.3 (5) |
O1—C4—C5—C6 | 179.5 (3) | C10—C11—C12—C13 | −2.1 (5) |
C3—C4—C5—C6 | 0.5 (5) | C10—C11—C12—Br1 | 177.7 (2) |
C4—C5—C6—C1 | −1.4 (5) | C11—C12—C13—C14 | 2.8 (5) |
C2—C1—C6—C5 | 1.8 (5) | Br1—C12—C13—C14 | −177.0 (3) |
C7—C1—C6—C5 | −177.5 (3) | C12—C13—C14—C9 | −1.1 (5) |
N2—N1—C7—O3 | −3.3 (5) | C10—C9—C14—C13 | −1.3 (5) |
N2—N1—C7—C1 | 177.5 (2) | C8—C9—C14—C13 | −180.0 (3) |
C2—C1—C7—O3 | 167.3 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O2 | 0.82 | 2.30 | 2.734 (3) | 114 |
O4—H16···O2i | 0.85 | 2.03 | 2.760 (3) | 143 |
O4—H15···O3ii | 0.85 | 1.94 | 2.761 (3) | 163 |
O2—H2···O3iii | 0.82 | 1.91 | 2.675 (3) | 154 |
O1—H1···O4iv | 0.82 | 2.16 | 2.929 (4) | 155 |
N1—H1A···O4v | 0.86 | 2.07 | 2.898 (4) | 162 |
Symmetry codes: (i) x, y−1, z+1; (ii) −x+1, −y+1, −z+1; (iii) x, −y+3/2, z−1/2; (iv) x, y+1, z−1; (v) −x+1, y+1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C14H11BrN2O3·H2O |
Mr | 353.17 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 295 |
a, b, c (Å) | 7.8119 (5), 13.8504 (9), 13.0764 (9) |
β (°) | 91.708 (1) |
V (Å3) | 1414.21 (16) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 2.92 |
Crystal size (mm) | 0.18 × 0.16 × 0.15 |
Data collection | |
Diffractometer | Siemens SMART CCD diffractometer |
Absorption correction | Multi-scan SADABS (Sheldrick, 1996) |
Tmin, Tmax | 0.621, 0.668 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7384, 2511, 1810 |
Rint | 0.096 |
(sin θ/λ)max (Å−1) | 0.596 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.044, 0.116, 1.02 |
No. of reflections | 2511 |
No. of parameters | 192 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.76, −0.69 |
Computer programs: SMART (Siemens, 1996), SAINT (Siemens, 1996), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O2 | 0.82 | 2.30 | 2.734 (3) | 114 |
O4—H16···O2i | 0.85 | 2.03 | 2.760 (3) | 143 |
O4—H15···O3ii | 0.85 | 1.94 | 2.761 (3) | 163 |
O2—H2···O3iii | 0.82 | 1.91 | 2.675 (3) | 154 |
O1—H1···O4iv | 0.82 | 2.16 | 2.929 (4) | 155 |
N1—H1A···O4v | 0.86 | 2.07 | 2.898 (4) | 162 |
Symmetry codes: (i) x, y−1, z+1; (ii) −x+1, −y+1, −z+1; (iii) x, −y+3/2, z−1/2; (iv) x, y+1, z−1; (v) −x+1, y+1/2, −z+1/2. |
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
Herrick, R. S., Ziegler, C. J., Precopio, M., Crandall, K., Shaw, J. & Jarret, R. M. (2008). J. Organomet. Chem. 693, 619–624. Web of Science CSD CrossRef CAS Google Scholar
Ma, H.-B., Huang, S.-S. & Diao, Y.-P. (2008). Acta Cryst. E64, o210. Web of Science CSD CrossRef IUCr Journals 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
Siemens (1996). SMART and SAINT. Siemens Analytical X-ray Instruments Inc., Madison, Wisconsin, USA. Google Scholar
Suresh, P., Srimurugan, S. & Pati, H. N. (2007). Chem. Lett. 36, 1332–1333. Web of Science CrossRef CAS Google Scholar
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Schiff base compounds can be easily synthesized from the reaction of aldehydes with primary amines (Herrick et al., 2008; Suresh et al., 2007). In this paper, the crystal structure of a new Schiff base compound derived from the condensation reaction of 3,4-dihydroxybenzohydrazide with 4-bromobenzaldehyde is reported.
The Schiff base molecule of the title compound, (I), displays a trans configuration with respect to the C=N and C—N bonds (Fig. 1). All the bond lengths are within normal ranges (Allen et al., 1987), and are comparable to those in the related compound 3,4-Dihydroxy-N'-(2-hydroxybenzylidene)benzohydrazide- methanol-water (2/1/3) (Ma et al., 2008). The dihedral angle between the two benzene rings in (I) is 22.7 (2)°. An intramolecular O—H···O hydrogen bond is observed. In the crystal structure the water molecule links three symmetry related molecules through O—H···O and O—H···N hydrogen bonds (Table 1). Together with two further intermolecular O—H···O hydrogen bonds, layers parallel to the ab plane are formed (Fig. 2).