organic compounds
N′-(2-Hydroxybenzylidene)-2-methoxybenzohydrazide monohydrate
aSchool of Chemistry and Environmental Science, Shaanxi University of Technology, Hanzhong 723000, People's Republic of China
*Correspondence e-mail: jiufulu@163.com
In the title compound, C15H14N2O3·H2O, the Schiff base molecule is approximately planar, with a dihedral angle between the two aromatic rings of 10.2 (3)°. The molecular structure is stabilized by O—H⋯N and N—H⋯O hydrogen bonds. In the the Schiff base and water molecules are linked together by intermolecular O—H⋯O hydrogen bonds, forming chains parallel to the a axis.
Related literature
For general background on et al. (2008); Alhadi et al. (2008); Ali et al. (2007); Zou et al. (2004); Shan et al. (2008); Bedia et al. (2006); Terzioglu & Gürsoy (2003). For related structures, see: Nie (2008); He (2008); Shi et al. (2007). For bond-length data, see: Allen et al. (1987).
derived from condensation of with benzohydrazides, see: FunExperimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2004); cell SAINT (Bruker, 2004); 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/S1600536808024483/ci2646sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808024483/ci2646Isup2.hkl
The title compound was prepared by the Schiff base condensation of salicylaldehyde (0.1 mol) and 2-methoxybenzohydrazide (0.1 mmol) in ethanol (50 ml). The excess ethanol was removed by distillation. The colourless solid obtained was filtered and washed with ethanol. Single crystals suitable for X-ray diffraction were grown by slow evaporation from an ethanol solution at room temperature.
The imino and water H atoms were located in a difference map and refined with N–H, O–H, and H···H distances restrained to 0.90 (1), 0.85 (1), and 1.37 (2) Å, respectively. The other H atoms were positioned geometrically [C–H = 0.93-0.96 Å and O–H = 0.82 Å] and refined using a riding model, with Uiso(H) = 1.2Ueq(C) and 1.5Ueq(C15 and O1). In the absence of significant
Friedel pairs were merged.Data collection: APEX2 (Bruker, 2004); cell
SAINT (Bruker, 2004); data reduction: SAINT (Bruker, 2004); 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).C15H14N2O3·H2O | F(000) = 608 |
Mr = 288.30 | Dx = 1.360 Mg m−3 |
Orthorhombic, P212121 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2ac 2ab | Cell parameters from 1886 reflections |
a = 4.761 (2) Å | θ = 2.5–24.3° |
b = 14.035 (3) Å | µ = 0.10 mm−1 |
c = 21.073 (4) Å | T = 298 K |
V = 1408.1 (7) Å3 | Block, colourless |
Z = 4 | 0.17 × 0.16 × 0.15 mm |
Bruker APEXII CCD area-detector diffractometer | 1808 independent reflections |
Radiation source: fine-focus sealed tube | 1345 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.047 |
ω scans | θmax = 27.0°, θmin = 1.7° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | h = −6→6 |
Tmin = 0.983, Tmax = 0.985 | k = −17→17 |
11662 measured reflections | l = −26→26 |
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) = 0.130 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.06 | w = 1/[σ2(Fo2) + (0.0693P)2 + 0.0505P] where P = (Fo2 + 2Fc2)/3 |
1808 reflections | (Δ/σ)max = 0.001 |
201 parameters | Δρmax = 0.19 e Å−3 |
4 restraints | Δρmin = −0.24 e Å−3 |
C15H14N2O3·H2O | V = 1408.1 (7) Å3 |
Mr = 288.30 | Z = 4 |
Orthorhombic, P212121 | Mo Kα radiation |
a = 4.761 (2) Å | µ = 0.10 mm−1 |
b = 14.035 (3) Å | T = 298 K |
c = 21.073 (4) Å | 0.17 × 0.16 × 0.15 mm |
Bruker APEXII CCD area-detector diffractometer | 1808 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | 1345 reflections with I > 2σ(I) |
Tmin = 0.983, Tmax = 0.985 | Rint = 0.047 |
11662 measured reflections |
R[F2 > 2σ(F2)] = 0.049 | 4 restraints |
wR(F2) = 0.130 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.06 | Δρmax = 0.19 e Å−3 |
1808 reflections | Δρmin = −0.24 e Å−3 |
201 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 | ||
O1 | 1.0565 (6) | 0.25999 (15) | 0.11044 (10) | 0.0662 (7) | |
H1 | 0.9443 | 0.2516 | 0.1394 | 0.099* | |
O2 | 0.5284 (6) | 0.30810 (15) | 0.26095 (10) | 0.0632 (7) | |
O3 | 0.4681 (5) | 0.04698 (14) | 0.35246 (10) | 0.0600 (6) | |
O4 | 0.0300 (7) | 0.40911 (16) | 0.22254 (13) | 0.0761 (8) | |
N1 | 0.8661 (5) | 0.17231 (17) | 0.21429 (11) | 0.0447 (6) | |
N2 | 0.6938 (6) | 0.15858 (18) | 0.26624 (11) | 0.0475 (6) | |
C1 | 1.2024 (6) | 0.1040 (2) | 0.14441 (13) | 0.0430 (7) | |
C2 | 1.2117 (7) | 0.1808 (2) | 0.10233 (13) | 0.0454 (7) | |
C3 | 1.3847 (8) | 0.1756 (2) | 0.04953 (14) | 0.0596 (10) | |
H3 | 1.3908 | 0.2266 | 0.0214 | 0.072* | |
C4 | 1.5436 (8) | 0.0984 (2) | 0.03827 (15) | 0.0614 (9) | |
H4 | 1.6573 | 0.0968 | 0.0024 | 0.074* | |
C5 | 1.5411 (8) | 0.0215 (2) | 0.07896 (15) | 0.0617 (9) | |
H5 | 1.6533 | −0.0314 | 0.0711 | 0.074* | |
C6 | 1.3700 (8) | 0.0247 (2) | 0.13124 (15) | 0.0539 (8) | |
H6 | 1.3654 | −0.0272 | 0.1586 | 0.065* | |
C7 | 1.0217 (7) | 0.10236 (19) | 0.19971 (13) | 0.0450 (7) | |
H7 | 1.0197 | 0.0484 | 0.2253 | 0.054* | |
C8 | 0.5265 (7) | 0.2299 (2) | 0.28622 (13) | 0.0457 (7) | |
C9 | 0.3359 (7) | 0.2092 (2) | 0.34123 (13) | 0.0429 (7) | |
C10 | 0.3100 (7) | 0.1214 (2) | 0.37297 (13) | 0.0470 (7) | |
C11 | 0.1233 (7) | 0.1132 (3) | 0.42336 (14) | 0.0573 (9) | |
H11 | 0.1055 | 0.0553 | 0.4445 | 0.069* | |
C12 | −0.0358 (8) | 0.1904 (3) | 0.44229 (15) | 0.0637 (9) | |
H12 | −0.1616 | 0.1838 | 0.4758 | 0.076* | |
C13 | −0.0103 (8) | 0.2763 (2) | 0.41233 (14) | 0.0565 (8) | |
H13 | −0.1165 | 0.3283 | 0.4255 | 0.068* | |
C14 | 0.1751 (7) | 0.2848 (2) | 0.36233 (14) | 0.0509 (8) | |
H14 | 0.1925 | 0.3435 | 0.3422 | 0.061* | |
C15 | 0.4542 (10) | −0.0415 (2) | 0.38602 (17) | 0.0750 (12) | |
H15A | 0.4918 | −0.0306 | 0.4302 | 0.112* | |
H15B | 0.5913 | −0.0847 | 0.3691 | 0.112* | |
H15C | 0.2700 | −0.0684 | 0.3813 | 0.112* | |
H2 | 0.695 (9) | 0.0996 (11) | 0.2825 (15) | 0.080* | |
H4A | −0.113 (5) | 0.371 (2) | 0.2284 (19) | 0.080* | |
H4B | 0.169 (5) | 0.373 (2) | 0.2359 (18) | 0.080* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0823 (19) | 0.0551 (13) | 0.0613 (14) | 0.0192 (14) | 0.0190 (13) | 0.0106 (10) |
O2 | 0.0598 (15) | 0.0610 (13) | 0.0688 (14) | 0.0056 (14) | 0.0168 (14) | 0.0188 (11) |
O3 | 0.0623 (15) | 0.0557 (12) | 0.0621 (13) | 0.0040 (12) | 0.0182 (13) | 0.0086 (10) |
O4 | 0.0771 (18) | 0.0626 (15) | 0.0885 (18) | 0.0020 (16) | 0.0056 (18) | 0.0012 (13) |
N1 | 0.0417 (14) | 0.0533 (15) | 0.0390 (13) | −0.0045 (13) | 0.0031 (12) | −0.0012 (11) |
N2 | 0.0474 (15) | 0.0540 (15) | 0.0412 (13) | −0.0037 (14) | 0.0074 (13) | 0.0013 (11) |
C1 | 0.0423 (17) | 0.0448 (15) | 0.0418 (15) | −0.0052 (14) | −0.0015 (14) | −0.0042 (13) |
C2 | 0.0482 (18) | 0.0461 (16) | 0.0417 (15) | −0.0004 (16) | 0.0002 (14) | −0.0049 (13) |
C3 | 0.069 (2) | 0.059 (2) | 0.0506 (19) | −0.002 (2) | 0.0155 (17) | 0.0066 (15) |
C4 | 0.060 (2) | 0.075 (2) | 0.0495 (18) | 0.000 (2) | 0.0131 (17) | −0.0117 (17) |
C5 | 0.063 (2) | 0.0592 (19) | 0.063 (2) | 0.0121 (19) | 0.0074 (19) | −0.0126 (17) |
C6 | 0.065 (2) | 0.0448 (16) | 0.0517 (17) | 0.0021 (17) | 0.0014 (17) | −0.0021 (14) |
C7 | 0.0477 (18) | 0.0438 (15) | 0.0434 (15) | −0.0057 (16) | 0.0056 (15) | 0.0007 (12) |
C8 | 0.0374 (17) | 0.0563 (17) | 0.0433 (15) | −0.0044 (17) | 0.0000 (15) | −0.0030 (14) |
C9 | 0.0359 (16) | 0.0546 (17) | 0.0381 (14) | −0.0061 (14) | −0.0052 (14) | −0.0049 (13) |
C10 | 0.0400 (17) | 0.0591 (18) | 0.0420 (15) | −0.0043 (16) | 0.0003 (14) | −0.0050 (14) |
C11 | 0.053 (2) | 0.070 (2) | 0.0495 (18) | −0.0070 (19) | 0.0073 (16) | 0.0069 (16) |
C12 | 0.054 (2) | 0.087 (2) | 0.0494 (18) | −0.005 (2) | 0.0116 (18) | −0.0080 (17) |
C13 | 0.048 (2) | 0.071 (2) | 0.0506 (17) | 0.0055 (19) | 0.0003 (18) | −0.0131 (16) |
C14 | 0.0474 (18) | 0.0572 (18) | 0.0482 (17) | −0.0020 (17) | −0.0032 (17) | −0.0058 (15) |
C15 | 0.085 (3) | 0.064 (2) | 0.075 (2) | 0.012 (2) | 0.012 (2) | 0.0219 (18) |
O1—C2 | 1.346 (4) | C5—C6 | 1.371 (4) |
O1—H1 | 0.8200 | C5—H5 | 0.93 |
O2—C8 | 1.220 (3) | C6—H6 | 0.93 |
O3—C10 | 1.358 (4) | C7—H7 | 0.93 |
O3—C15 | 1.430 (4) | C8—C9 | 1.501 (4) |
O4—H4A | 0.88 (3) | C9—C14 | 1.383 (4) |
O4—H4B | 0.88 (3) | C9—C10 | 1.407 (4) |
N1—C7 | 1.268 (3) | C10—C11 | 1.389 (4) |
N1—N2 | 1.381 (3) | C11—C12 | 1.380 (5) |
N2—C8 | 1.347 (4) | C11—H11 | 0.93 |
N2—H2 | 0.897 (10) | C12—C13 | 1.366 (5) |
C1—C6 | 1.397 (4) | C12—H12 | 0.93 |
C1—C2 | 1.397 (4) | C13—C14 | 1.380 (4) |
C1—C7 | 1.449 (4) | C13—H13 | 0.93 |
C2—C3 | 1.386 (4) | C14—H14 | 0.93 |
C3—C4 | 1.343 (5) | C15—H15A | 0.96 |
C3—H3 | 0.93 | C15—H15B | 0.96 |
C4—C5 | 1.378 (4) | C15—H15C | 0.96 |
C4—H4 | 0.93 | ||
C2—O1—H1 | 109.5 | O2—C8—N2 | 121.9 (3) |
C10—O3—C15 | 119.0 (3) | O2—C8—C9 | 121.1 (3) |
H4A—O4—H4B | 101.2 (19) | N2—C8—C9 | 117.0 (3) |
C7—N1—N2 | 115.5 (2) | C14—C9—C10 | 118.1 (3) |
C8—N2—N1 | 119.7 (2) | C14—C9—C8 | 115.7 (3) |
C8—N2—H2 | 125 (3) | C10—C9—C8 | 126.2 (3) |
N1—N2—H2 | 115 (3) | O3—C10—C11 | 122.3 (3) |
C6—C1—C2 | 118.1 (3) | O3—C10—C9 | 118.2 (3) |
C6—C1—C7 | 119.1 (3) | C11—C10—C9 | 119.5 (3) |
C2—C1—C7 | 122.8 (3) | C12—C11—C10 | 120.5 (3) |
O1—C2—C3 | 118.1 (3) | C12—C11—H11 | 119.8 |
O1—C2—C1 | 122.7 (3) | C10—C11—H11 | 119.8 |
C3—C2—C1 | 119.2 (3) | C13—C12—C11 | 120.7 (3) |
C4—C3—C2 | 121.3 (3) | C13—C12—H12 | 119.7 |
C4—C3—H3 | 119.4 | C11—C12—H12 | 119.7 |
C2—C3—H3 | 119.4 | C12—C13—C14 | 119.1 (3) |
C3—C4—C5 | 121.1 (3) | C12—C13—H13 | 120.4 |
C3—C4—H4 | 119.4 | C14—C13—H13 | 120.4 |
C5—C4—H4 | 119.4 | C13—C14—C9 | 122.2 (3) |
C6—C5—C4 | 118.7 (3) | C13—C14—H14 | 118.9 |
C6—C5—H5 | 120.7 | C9—C14—H14 | 118.9 |
C4—C5—H5 | 120.7 | O3—C15—H15A | 109.5 |
C5—C6—C1 | 121.7 (3) | O3—C15—H15B | 109.5 |
C5—C6—H6 | 119.2 | H15A—C15—H15B | 109.5 |
C1—C6—H6 | 119.2 | O3—C15—H15C | 109.5 |
N1—C7—C1 | 122.0 (3) | H15A—C15—H15C | 109.5 |
N1—C7—H7 | 119.0 | H15B—C15—H15C | 109.5 |
C1—C7—H7 | 119.0 |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···N1 | 0.82 | 1.97 | 2.669 (3) | 143 |
N2—H2···O3 | 0.90 (1) | 1.97 (3) | 2.629 (3) | 129 (3) |
O4—H4B···O2 | 0.88 (3) | 2.01 (3) | 2.880 (4) | 171 (3) |
O4—H4A···O2i | 0.88 (3) | 2.04 (2) | 2.893 (4) | 165 (4) |
Symmetry code: (i) x−1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C15H14N2O3·H2O |
Mr | 288.30 |
Crystal system, space group | Orthorhombic, P212121 |
Temperature (K) | 298 |
a, b, c (Å) | 4.761 (2), 14.035 (3), 21.073 (4) |
V (Å3) | 1408.1 (7) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.17 × 0.16 × 0.15 |
Data collection | |
Diffractometer | Bruker APEXII CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2004) |
Tmin, Tmax | 0.983, 0.985 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 11662, 1808, 1345 |
Rint | 0.047 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.049, 0.130, 1.06 |
No. of reflections | 1808 |
No. of parameters | 201 |
No. of restraints | 4 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.19, −0.24 |
Computer programs: APEX2 (Bruker, 2004), SAINT (Bruker, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···N1 | 0.82 | 1.97 | 2.669 (3) | 143 |
N2—H2···O3 | 0.90 (1) | 1.97 (3) | 2.629 (3) | 129 (3) |
O4—H4B···O2 | 0.88 (3) | 2.01 (3) | 2.880 (4) | 171 (3) |
O4—H4A···O2i | 0.88 (3) | 2.04 (2) | 2.893 (4) | 165 (4) |
Symmetry code: (i) x−1, y, z. |
Acknowledgements
The authors acknowledge Shaanxi University of Technology for the research fund.
References
Alhadi, A. A., Ali, H. M., Puvaneswary, S., Robinson, W. T. & Ng, S. W. (2008). Acta Cryst. E64, o1584. Web of Science CSD CrossRef IUCr Journals Google Scholar
Ali, H. M., Zuraini, K., Wan Jefrey, B. & Ng, S. W. (2007). Acta Cryst. E63, o1729–o1730. Web of Science CSD CrossRef IUCr Journals Google Scholar
Allen, F. H., Kennard, O., Watson, D. G., Brammer, L., Orpen, A. G. & Taylor, R. (1987). J. Chem. Soc. Perkin Trans. 2, pp. S1–S19. CrossRef Web of Science Google Scholar
Bedia, K.-K., Elcin, O., Seda, U., Fatma, K., Nathaly, S., Sevim, R. & Dimoglo, A. (2006). Eur. J. Med. Chem. 41, 1253–1261. Web of Science CrossRef PubMed CAS Google Scholar
Bruker (2004). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Fun, H.-K., Patil, P. S., Jebas, S. R., Sujith, K. V. & Kalluraya, B. (2008). Acta Cryst. E64, o1594–o1595. Web of Science CSD CrossRef IUCr Journals Google Scholar
He, L. (2008). Acta Cryst. E64, o82. 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
Shan, S., Tian, Y.-L., Wang, S.-H., Wang, W.-L. & Xu, Y.-L. (2008). Acta Cryst. E64, o1363. Web of Science CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2004). 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
Shi, X.-F., Liu, C.-Y., Liu, B. & Yuan, C.-C. (2007). Acta Cryst. E63, o1295–o1296. Web of Science CSD CrossRef IUCr Journals Google Scholar
Terzioglu, N. & Gürsoy, A. (2003). Eur. J. Med. Chem. 38, 781–786. Web of Science CrossRef PubMed CAS Google Scholar
Zou, W., Yu, H. & Meng, J. (2004). Acta Cryst. E60, o671–o673. Web of Science CSD CrossRef IUCr Journals Google Scholar
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.
Schiff bases derived from the condensation of aldehydes with benzohydrazides have been widely investigated, either for their structures (Fun et al., 2008; Alhadi et al., 2008; Ali et al., 2007; Zou et al., 2004; Shan et al., 2008) or for their biological properties (Bedia et al., 2006; Terzioglu & Gürsoy, 2003). This study extends the structural study on such compounds. We report here the crystal structure of the title new Schiff base compound.
The asymmetric unit of the title compound consists of a Schiff base molecule and a water molecule of crystallization (Fig. 1). The bond lengths are within normal values (Allen et al., 1987), and are comparable to the values observed in similar compounds (Nie, 2008; He, 2008; Shi et al., 2007). The dihedral angle between the two aromatic rings in the Schiff base molecule is 10.2 (3)°, indicating that the molecule is approximately coplanar. The molecular structure is stabilized by O—H···N and N—H···O hydrogen bonds.
In the crystal structure (Fig. 2), the Schiff base and water molecules are linked into chains running parallel to the a axis by intermolecular O—H···O hydrogen bonds (Table 1).