organic compounds
(E)-N′-(5-Bromo-2-hydroxy-3-methoxybenzylidene)-2-hydroxybenzohydrazide monohydrate
aCollege of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, Shaanxi, People's Republic of China, and bCollege of Chemical Engineering, Northwest University, Xi'an 710069, Shaanxi, People's Republic of China
*Correspondence e-mail: shshzhao@xust.edu.cn
The organic molecule of the title hydrate, C15H13BrN2O4·H2O, is roughly planar, with a mean deviation of 0.0939 (2) Å. The dihedral angle between the two aromatic rings is 8.2 (3)°. Intramolecular O—H⋯N and O—H⋯O hydrogen bonds are observed. In the crystal, N—H⋯O(water) and O(water)—H⋯O hydrogen bonds lead to a three-dimensional network.
Related literature
For related structures, see: Lu (2008); Nie (2008). For bond-length data, see: Allen et al. (1987).
Experimental
Crystal data
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Data collection: SMART (Bruker, 2001); cell SAINT (Bruker, 2001); 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 and local programs.
Supporting information
https://doi.org/10.1107/S1600536812024816/fk2062sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536812024816/fk2062Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536812024816/fk2062Isup3.cml
2-Hydroxybenzohydrazide (152.2 mg, 1.0 mmol) was added to a solution of 5-bromo-2-hydroxy-3-methoxybenzaldehyde (231.5 mg, 1.0 mmol) in absolute ethanol (10 ml) and heated to reflux for 2 h. A pale yellow solid that precipitated from the reaction mixture was collected by filtration, dried on open air and then recrystallized from acetonitrile to give pale yellow crystals, yield 69.3%.
Hydroxy H atoms were located in a difference-Fourier synthesis and were refined as idealized rotating hydroxyl groups, with O—H = 0.82 Å and Uiso(H) = 1.5 Ueq(O). Water H atoms were located in a difference-Fourier synthesis and refined with constraint O—H = 0.82 Å, H···H distance 1.35 Å and Uiso(H) = 1.5 Ueq(O). Other H atoms were positioned geometrically and refined using a riding model with N—H = 0.86 Å, C—H = 0.93–0.96 Å and with Uiso(H) = 1.2 (1.5 for methyl groups) times Ueq(C/N).
Hydrazones attract the interest of researchers due to their various biological activities viz. anticancer, anti-HIV, anthelmintic, antimycobacterial, anti-inflammatory, antidiabetic, antimicrobial, trypanocidal as well antimalarial activities. Here we report the
of the novel hydrazone title compound (Fig. 1). Bond lengths are in the range of expected values (Allen et al., 1987) and are comparable to those observed from similar compounds (Lu, 2008; Nie, 2008). Intramolecular as well as intermolecular N—H···O and O—H···O hydrogen bonds are observed (Table 1), the intermolecular ones lead to a three-dimensional network of the hydrazone with water molecules (Fig. 2). The latter stems from non-dried acetonitrile.For related structures, see: Lu (2008); Nie (2008). For bond-length data, see: Allen et al. (1987).
Data collection: SMART (Bruker, 2001); cell
SAINT (Bruker, 2001); data reduction: SAINT (Bruker, 2001); 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) and local programs.C15H13BrN2O4·H2O | F(000) = 776 |
Mr = 383.20 | Dx = 1.614 Mg m−3 |
Orthorhombic, P212121 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2ac 2ab | Cell parameters from 2451 reflections |
a = 6.3822 (13) Å | θ = 1.9–26.6° |
b = 14.142 (3) Å | µ = 2.63 mm−1 |
c = 17.470 (4) Å | T = 296 K |
V = 1576.8 (6) Å3 | Stick, colourless |
Z = 4 | 0.38 × 0.26 × 0.20 mm |
Bruker SMART 1K CCD area-detector diffractometer | 3658 independent reflections |
Radiation source: fine-focus sealed tube | 2060 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.066 |
thin–slice ω scans | θmax = 28.2°, θmin = 1.9° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | h = −8→5 |
Tmin = 0.444, Tmax = 0.590 | k = −18→18 |
9336 measured reflections | l = −21→19 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.045 | H-atom parameters constrained |
wR(F2) = 0.131 | w = 1/[σ2(Fo2) + (0.0557P)2] where P = (Fo2 + 2Fc2)/3 |
S = 0.90 | (Δ/σ)max = 0.001 |
3658 reflections | Δρmax = 0.33 e Å−3 |
217 parameters | Δρmin = −0.48 e Å−3 |
3 restraints | Absolute structure: Flack (1983), 1411 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.008 (15) |
C15H13BrN2O4·H2O | V = 1576.8 (6) Å3 |
Mr = 383.20 | Z = 4 |
Orthorhombic, P212121 | Mo Kα radiation |
a = 6.3822 (13) Å | µ = 2.63 mm−1 |
b = 14.142 (3) Å | T = 296 K |
c = 17.470 (4) Å | 0.38 × 0.26 × 0.20 mm |
Bruker SMART 1K CCD area-detector diffractometer | 3658 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | 2060 reflections with I > 2σ(I) |
Tmin = 0.444, Tmax = 0.590 | Rint = 0.066 |
9336 measured reflections |
R[F2 > 2σ(F2)] = 0.045 | H-atom parameters constrained |
wR(F2) = 0.131 | Δρmax = 0.33 e Å−3 |
S = 0.90 | Δρmin = −0.48 e Å−3 |
3658 reflections | Absolute structure: Flack (1983), 1411 Friedel pairs |
217 parameters | Absolute structure parameter: 0.008 (15) |
3 restraints |
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 | 0.17855 (11) | 1.17225 (4) | 0.99142 (4) | 0.0780 (3) | |
O1 | 0.2998 (5) | 0.8130 (2) | 0.9293 (2) | 0.0454 (9) | |
O3 | 1.1945 (6) | 0.8459 (2) | 0.7425 (2) | 0.0524 (10) | |
O2 | 0.6469 (5) | 0.8437 (2) | 0.8561 (2) | 0.0476 (9) | |
H2A | 0.7579 | 0.8596 | 0.8362 | 0.071* | |
C6 | 0.6271 (8) | 1.0123 (4) | 0.8788 (3) | 0.0370 (12) | |
C10 | 1.4183 (7) | 0.9660 (3) | 0.6933 (3) | 0.0343 (12) | |
C3 | 0.2568 (8) | 0.9790 (4) | 0.9594 (3) | 0.0392 (12) | |
H3A | 0.1357 | 0.9684 | 0.9878 | 0.047* | |
N1 | 0.9280 (6) | 0.9674 (3) | 0.8055 (2) | 0.0394 (11) | |
C11 | 1.4638 (8) | 1.0619 (4) | 0.6803 (3) | 0.0463 (14) | |
H11A | 1.3713 | 1.1075 | 0.6983 | 0.056* | |
C8 | 0.8180 (8) | 1.0329 (4) | 0.8369 (3) | 0.0431 (13) | |
H8A | 0.8621 | 1.0953 | 0.8327 | 0.052* | |
C15 | 1.5614 (8) | 0.9000 (4) | 0.6654 (3) | 0.0410 (13) | |
C2 | 0.3633 (7) | 0.9045 (4) | 0.9263 (3) | 0.0355 (11) | |
C9 | 1.2306 (8) | 0.9322 (4) | 0.7355 (3) | 0.0387 (12) | |
N2 | 1.1036 (6) | 0.9967 (3) | 0.7668 (2) | 0.0397 (11) | |
H2B | 1.1315 | 1.0560 | 0.7627 | 0.048* | |
C14 | 1.7394 (8) | 0.9297 (4) | 0.6256 (3) | 0.0521 (15) | |
H14A | 1.8342 | 0.8852 | 0.6071 | 0.063* | |
O4 | 1.5336 (6) | 0.8046 (2) | 0.6757 (2) | 0.0526 (10) | |
H4A | 1.4234 | 0.7953 | 0.6986 | 0.079* | |
C4 | 0.3336 (9) | 1.0699 (4) | 0.9496 (3) | 0.0431 (13) | |
C7 | 0.5520 (8) | 0.9207 (4) | 0.8869 (3) | 0.0377 (12) | |
C13 | 1.7743 (9) | 1.0233 (4) | 0.6138 (3) | 0.0546 (16) | |
H13A | 1.8916 | 1.0424 | 0.5863 | 0.066* | |
C5 | 0.5154 (9) | 1.0869 (4) | 0.9111 (3) | 0.0463 (14) | |
H5A | 0.5650 | 1.1484 | 0.9063 | 0.056* | |
C1 | 0.1150 (8) | 0.7915 (4) | 0.9715 (4) | 0.0597 (17) | |
H1B | 0.0880 | 0.7248 | 0.9688 | 0.090* | |
H1C | −0.0015 | 0.8254 | 0.9501 | 0.090* | |
H1D | 0.1338 | 0.8098 | 1.0240 | 0.090* | |
C12 | 1.6383 (9) | 1.0900 (4) | 0.6421 (3) | 0.0520 (15) | |
H12A | 1.6656 | 1.1540 | 0.6351 | 0.062* | |
O1W | 0.1142 (6) | 0.2032 (3) | 0.7660 (3) | 0.0683 (13) | |
H2W | 0.2215 | 0.2368 | 0.7723 | 0.102* | |
H1W | 0.0225 | 0.2390 | 0.7451 | 0.102* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.0908 (5) | 0.0470 (3) | 0.0962 (6) | 0.0036 (3) | 0.0521 (4) | −0.0121 (4) |
O1 | 0.040 (2) | 0.039 (2) | 0.057 (2) | −0.0034 (18) | 0.0170 (18) | 0.0032 (17) |
O3 | 0.041 (2) | 0.041 (2) | 0.075 (3) | −0.0072 (18) | 0.0064 (19) | 0.0060 (18) |
O2 | 0.038 (2) | 0.046 (2) | 0.059 (2) | 0.0063 (18) | 0.0169 (18) | 0.0016 (18) |
C6 | 0.030 (3) | 0.047 (3) | 0.034 (3) | −0.004 (2) | 0.002 (2) | 0.000 (2) |
C10 | 0.023 (3) | 0.041 (3) | 0.039 (3) | 0.000 (2) | 0.001 (2) | 0.002 (2) |
C3 | 0.035 (3) | 0.044 (3) | 0.039 (3) | −0.001 (2) | 0.009 (2) | 0.002 (2) |
N1 | 0.026 (2) | 0.050 (3) | 0.042 (3) | −0.005 (2) | 0.0054 (19) | 0.007 (2) |
C11 | 0.041 (3) | 0.045 (3) | 0.053 (4) | 0.004 (3) | 0.008 (3) | 0.004 (3) |
C8 | 0.035 (3) | 0.047 (3) | 0.047 (3) | −0.007 (3) | 0.003 (3) | 0.005 (2) |
C15 | 0.034 (3) | 0.043 (3) | 0.046 (3) | −0.001 (3) | −0.001 (2) | −0.006 (3) |
C2 | 0.031 (3) | 0.040 (3) | 0.036 (3) | 0.001 (2) | 0.003 (2) | 0.003 (2) |
C9 | 0.032 (3) | 0.045 (3) | 0.038 (3) | −0.001 (2) | −0.002 (2) | 0.003 (2) |
N2 | 0.031 (2) | 0.042 (3) | 0.046 (3) | −0.003 (2) | 0.010 (2) | 0.004 (2) |
C14 | 0.036 (3) | 0.074 (5) | 0.046 (3) | 0.008 (3) | 0.009 (3) | −0.003 (3) |
O4 | 0.049 (2) | 0.043 (2) | 0.065 (3) | 0.0035 (18) | 0.0088 (19) | −0.0034 (19) |
C4 | 0.045 (3) | 0.043 (3) | 0.041 (3) | −0.005 (3) | 0.008 (3) | −0.006 (2) |
C7 | 0.035 (3) | 0.044 (3) | 0.034 (3) | 0.004 (2) | 0.002 (2) | −0.001 (2) |
C13 | 0.043 (4) | 0.068 (4) | 0.053 (4) | −0.007 (3) | 0.013 (3) | 0.016 (3) |
C5 | 0.054 (4) | 0.034 (3) | 0.051 (4) | −0.006 (3) | 0.012 (3) | −0.005 (3) |
C1 | 0.044 (3) | 0.055 (4) | 0.080 (4) | −0.007 (3) | 0.018 (3) | 0.007 (3) |
C12 | 0.042 (3) | 0.057 (4) | 0.057 (4) | −0.002 (3) | 0.013 (3) | 0.013 (3) |
O1W | 0.046 (2) | 0.040 (2) | 0.119 (4) | 0.0026 (18) | 0.003 (2) | −0.005 (2) |
Br1—C4 | 1.899 (5) | C8—H8A | 0.9300 |
O1—C2 | 1.356 (6) | C15—O4 | 1.372 (6) |
O1—C1 | 1.424 (6) | C15—C14 | 1.396 (7) |
O3—C9 | 1.249 (6) | C2—C7 | 1.406 (7) |
O2—C7 | 1.357 (6) | C9—N2 | 1.337 (6) |
O2—H2A | 0.8200 | N2—H2B | 0.8600 |
C6—C7 | 1.389 (7) | C14—C13 | 1.358 (8) |
C6—C5 | 1.392 (7) | C14—H14A | 0.9300 |
C6—C8 | 1.451 (7) | O4—H4A | 0.8200 |
C10—C15 | 1.394 (7) | C4—C5 | 1.363 (7) |
C10—C11 | 1.405 (7) | C13—C12 | 1.374 (8) |
C10—C9 | 1.486 (7) | C13—H13A | 0.9300 |
C3—C2 | 1.381 (7) | C5—H5A | 0.9300 |
C3—C4 | 1.386 (7) | C1—H1B | 0.9600 |
C3—H3A | 0.9300 | C1—H1C | 0.9600 |
N1—C8 | 1.286 (6) | C1—H1D | 0.9600 |
N1—N2 | 1.373 (5) | C12—H12A | 0.9300 |
C11—C12 | 1.357 (7) | O1W—H2W | 0.8409 |
C11—H11A | 0.9300 | O1W—H1W | 0.8548 |
C2—O1—C1 | 118.1 (4) | C9—N2—H2B | 120.3 |
C7—O2—H2A | 109.5 | N1—N2—H2B | 120.3 |
C7—C6—C5 | 119.3 (5) | C13—C14—C15 | 120.1 (5) |
C7—C6—C8 | 121.9 (5) | C13—C14—H14A | 120.0 |
C5—C6—C8 | 118.8 (5) | C15—C14—H14A | 120.0 |
C15—C10—C11 | 117.0 (5) | C15—O4—H4A | 109.5 |
C15—C10—C9 | 119.1 (5) | C5—C4—C3 | 121.7 (5) |
C11—C10—C9 | 123.9 (5) | C5—C4—Br1 | 119.9 (4) |
C2—C3—C4 | 118.8 (5) | C3—C4—Br1 | 118.4 (4) |
C2—C3—H3A | 120.6 | O2—C7—C6 | 123.6 (5) |
C4—C3—H3A | 120.6 | O2—C7—C2 | 116.5 (5) |
C8—N1—N2 | 116.0 (4) | C6—C7—C2 | 119.8 (5) |
C12—C11—C10 | 122.1 (5) | C14—C13—C12 | 120.7 (5) |
C12—C11—H11A | 118.9 | C14—C13—H13A | 119.6 |
C10—C11—H11A | 118.9 | C12—C13—H13A | 119.6 |
N1—C8—C6 | 122.0 (5) | C4—C5—C6 | 120.2 (5) |
N1—C8—H8A | 119.0 | C4—C5—H5A | 119.9 |
C6—C8—H8A | 119.0 | C6—C5—H5A | 119.9 |
O4—C15—C10 | 121.8 (5) | O1—C1—H1B | 109.5 |
O4—C15—C14 | 117.7 (5) | O1—C1—H1C | 109.5 |
C10—C15—C14 | 120.4 (5) | H1B—C1—H1C | 109.5 |
O1—C2—C3 | 124.4 (4) | O1—C1—H1D | 109.5 |
O1—C2—C7 | 115.4 (4) | H1B—C1—H1D | 109.5 |
C3—C2—C7 | 120.2 (5) | H1C—C1—H1D | 109.5 |
O3—C9—N2 | 121.0 (5) | C11—C12—C13 | 119.6 (6) |
O3—C9—C10 | 120.8 (5) | C11—C12—H12A | 120.2 |
N2—C9—C10 | 118.2 (4) | C13—C12—H12A | 120.2 |
C9—N2—N1 | 119.3 (4) | H2W—O1W—H1W | 106.2 |
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2A···N1 | 0.82 | 1.95 | 2.657 (5) | 144 |
N2—H2B···O1Wi | 0.86 | 2.09 | 2.921 (5) | 164 |
O4—H4A···O3 | 0.82 | 1.80 | 2.527 (5) | 147 |
O1W—H2W···O4ii | 0.84 | 2.05 | 2.855 (6) | 161 |
O1W—H1W···O3iii | 0.85 | 2.06 | 2.823 (5) | 148 |
Symmetry codes: (i) x+1, y+1, z; (ii) −x+2, y−1/2, −z+3/2; (iii) −x+1, y−1/2, −z+3/2. |
Experimental details
Crystal data | |
Chemical formula | C15H13BrN2O4·H2O |
Mr | 383.20 |
Crystal system, space group | Orthorhombic, P212121 |
Temperature (K) | 296 |
a, b, c (Å) | 6.3822 (13), 14.142 (3), 17.470 (4) |
V (Å3) | 1576.8 (6) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 2.63 |
Crystal size (mm) | 0.38 × 0.26 × 0.20 |
Data collection | |
Diffractometer | Bruker SMART 1K CCD area-detector |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2004) |
Tmin, Tmax | 0.444, 0.590 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9336, 3658, 2060 |
Rint | 0.066 |
(sin θ/λ)max (Å−1) | 0.665 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.045, 0.131, 0.90 |
No. of reflections | 3658 |
No. of parameters | 217 |
No. of restraints | 3 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.33, −0.48 |
Absolute structure | Flack (1983), 1411 Friedel pairs |
Absolute structure parameter | 0.008 (15) |
Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 2001), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008) and local programs.
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2A···N1 | 0.82 | 1.95 | 2.657 (5) | 144.4 |
N2—H2B···O1Wi | 0.86 | 2.09 | 2.921 (5) | 163.7 |
O4—H4A···O3 | 0.82 | 1.80 | 2.527 (5) | 147.2 |
O1W—H2W···O4ii | 0.84 | 2.05 | 2.855 (6) | 160.9 |
O1W—H1W···O3iii | 0.85 | 2.06 | 2.823 (5) | 148.1 |
Symmetry codes: (i) x+1, y+1, z; (ii) −x+2, y−1/2, −z+3/2; (iii) −x+1, y−1/2, −z+3/2. |
Acknowledgements
The project was supported by the National Natural Science Foundation of China (program Nos. 21103135, 21073139), the Natural Science Basic Research Plan in Shaanxi Province of China (program No. 2011JQ2011), the Cultivation Foundation of Xi'an University of Science and Technology (program No. 2010023), the Scientific Research Program Funded by Shaanxi Provincial Education Department (program No.12 J K0622) and the Open Foundation of the Ministry of Education Key Laboratory of Synthetic and Natural Functional Molecular Chemistry at Northwest University (grant No. 2010025).
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. CSD CrossRef Web of Science Google Scholar
Bruker (2001). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Flack, H. D. (1983). Acta Cryst. A39, 876–881. CrossRef CAS Web of Science IUCr Journals Google Scholar
Lu, J.-F. (2008). Acta Cryst. E64, o2048. Web of Science CSD CrossRef IUCr Journals Google Scholar
Nie, Y. (2008). Acta Cryst. E64, o471. Web of Science CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2004). SADABS. University of Göttingen, Germany. Google Scholar
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Hydrazones attract the interest of researchers due to their various biological activities viz. anticancer, anti-HIV, anthelmintic, antimycobacterial, anti-inflammatory, antidiabetic, antimicrobial, trypanocidal as well antimalarial activities. Here we report the crystal structure of the novel hydrazone title compound (Fig. 1). Bond lengths are in the range of expected values (Allen et al., 1987) and are comparable to those observed from similar compounds (Lu, 2008; Nie, 2008). Intramolecular as well as intermolecular N—H···O and O—H···O hydrogen bonds are observed (Table 1), the intermolecular ones lead to a three-dimensional network of the hydrazone with water molecules (Fig. 2). The latter stems from non-dried acetonitrile.