organic compounds
(E)-N′-(4-Hydroxybenzylidene)-4-hydroxybenzohydrazide methanol solvate
aCollege of Science, Shenyang University, Shenyang 110044, People's Republic of China, and bSchool of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, People's Republic of China
*Correspondence e-mail: hongyan_ban@163.com
The title compound, C14H12N2O3·CH4O, consists of a Schiff base molecule and a methanol molecule of crystallization. The Schiff base molecule is nearly planar, the dihedral angle between the planes of the two benzene rings being 7.2 (2)°. The molecule exists in the trans configuration with respect to the methylidene unit. In the the Schiff base and methanol molecules are linked through O—H⋯O, N—H⋯O and O—H⋯N hydrogen bonds, forming a three-dimensional network.
Related literature
For the biological activity of et al. (2007); Raj et al. (2007); Jimenez-Pulido et al. (2008). For related crystal structures, see: Ban & Li (2008a,b); Li & Ban (2009a,b); Yehye et al. (2008); Fun, Patil, Jebas et al. (2008); Fun, Patil, Rao et al. (2008); Yang et al. (2008); Ejsmont et al. (2008).
see: ZhongExperimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 1998); cell SAINT (Bruker, 1998); 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/S1600536809020078/wn2329sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809020078/wn2329Isup2.hkl
The compound was prepared by refluxing 4-hydroxybenzaldehyde (1.0 mol) with 4-hydroxybenzohydrazide (1.0 mol) in methanol (100 ml). Excess methanol was removed from the mixture by distillation. The colorless solid product was filtered and washed three times with methanol. Colorless block crystals of the title compound were obtained from a methanol solution by slow evaporation in air.
H2A was located in a difference Fourier map and refined isotropically, with the N—H distance restrained to 0.90 (1)Å. Other H atoms were placed in calculated positions (C—H = 0.93 - 0.96 Å, O—H = 0.82 Å) and refined as riding with Uiso(H) = 1.2Ueq(C) and 1.5Ueq(O and methyl). A rotating group model was used for the methyl group of the methanol.
Data collection: SMART (Bruker, 1998); cell
SAINT (Bruker, 1998); data reduction: SAINT (Bruker, 1998); 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).C14H12N2O3·CH4O | F(000) = 608 |
Mr = 288.30 | Dx = 1.358 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2955 reflections |
a = 12.927 (1) Å | θ = 2.7–29.4° |
b = 9.277 (1) Å | µ = 0.10 mm−1 |
c = 11.946 (2) Å | T = 298 K |
β = 100.147 (1)° | Block, colorless |
V = 1410.2 (3) Å3 | 0.30 × 0.30 × 0.28 mm |
Z = 4 |
Bruker SMART CCD area-detector diffractometer | 3064 independent reflections |
Radiation source: fine-focus sealed tube | 2382 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.023 |
ω scans | θmax = 27.0°, θmin = 1.6° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −10→16 |
Tmin = 0.971, Tmax = 0.973 | k = −11→11 |
8435 measured reflections | l = −15→14 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.040 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.118 | w = 1/[σ2(Fo2) + (0.0556P)2 + 0.2974P] where P = (Fo2 + 2Fc2)/3 |
S = 1.06 | (Δ/σ)max < 0.001 |
3064 reflections | Δρmax = 0.22 e Å−3 |
197 parameters | Δρmin = −0.17 e Å−3 |
1 restraint | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0112 (19) |
C14H12N2O3·CH4O | V = 1410.2 (3) Å3 |
Mr = 288.30 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 12.927 (1) Å | µ = 0.10 mm−1 |
b = 9.277 (1) Å | T = 298 K |
c = 11.946 (2) Å | 0.30 × 0.30 × 0.28 mm |
β = 100.147 (1)° |
Bruker SMART CCD area-detector diffractometer | 3064 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2382 reflections with I > 2σ(I) |
Tmin = 0.971, Tmax = 0.973 | Rint = 0.023 |
8435 measured reflections |
R[F2 > 2σ(F2)] = 0.040 | 1 restraint |
wR(F2) = 0.118 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.06 | Δρmax = 0.22 e Å−3 |
3064 reflections | Δρmin = −0.17 e Å−3 |
197 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 | ||
N1 | 0.70137 (9) | 0.02841 (13) | 0.10898 (10) | 0.0378 (3) | |
N2 | 0.78657 (9) | 0.08908 (13) | 0.07052 (10) | 0.0383 (3) | |
O1 | 0.30453 (8) | −0.37263 (12) | 0.13979 (9) | 0.0485 (3) | |
H1 | 0.2840 | −0.3402 | 0.1959 | 0.073* | |
O2 | 0.80648 (8) | 0.24758 (12) | 0.21426 (9) | 0.0475 (3) | |
O3 | 1.21247 (9) | 0.40526 (14) | 0.01129 (11) | 0.0588 (4) | |
H3 | 1.2348 | 0.4747 | 0.0508 | 0.088* | |
O4 | 0.79337 (10) | 0.50038 (13) | 0.33324 (9) | 0.0565 (3) | |
H4 | 0.8007 | 0.4286 | 0.2953 | 0.085* | |
C1 | 0.56666 (10) | −0.15101 (15) | 0.07692 (11) | 0.0352 (3) | |
C2 | 0.52247 (11) | −0.11701 (16) | 0.17196 (12) | 0.0413 (4) | |
H2 | 0.5519 | −0.0441 | 0.2208 | 0.050* | |
C3 | 0.43564 (11) | −0.19027 (17) | 0.19437 (12) | 0.0410 (3) | |
H3A | 0.4071 | −0.1669 | 0.2582 | 0.049* | |
C4 | 0.39100 (10) | −0.29833 (15) | 0.12210 (11) | 0.0342 (3) | |
C5 | 0.43415 (12) | −0.33417 (17) | 0.02789 (13) | 0.0429 (4) | |
H5 | 0.4046 | −0.4072 | −0.0208 | 0.052* | |
C6 | 0.52155 (11) | −0.26075 (17) | 0.00652 (12) | 0.0432 (4) | |
H6 | 0.5507 | −0.2857 | −0.0566 | 0.052* | |
C7 | 0.65706 (11) | −0.07482 (16) | 0.04877 (12) | 0.0392 (3) | |
H7 | 0.6834 | −0.1026 | −0.0156 | 0.047* | |
C8 | 0.83705 (10) | 0.19889 (15) | 0.12912 (12) | 0.0347 (3) | |
C9 | 0.93302 (10) | 0.25557 (14) | 0.09212 (11) | 0.0341 (3) | |
C10 | 0.98624 (11) | 0.36828 (16) | 0.15352 (13) | 0.0420 (4) | |
H10 | 0.9590 | 0.4089 | 0.2133 | 0.050* | |
C11 | 1.07881 (12) | 0.42096 (17) | 0.12748 (13) | 0.0443 (4) | |
H11 | 1.1135 | 0.4966 | 0.1694 | 0.053* | |
C12 | 1.11995 (11) | 0.36095 (16) | 0.03881 (13) | 0.0403 (3) | |
C13 | 1.06694 (12) | 0.25061 (17) | −0.02465 (13) | 0.0451 (4) | |
H13 | 1.0938 | 0.2116 | −0.0853 | 0.054* | |
C14 | 0.97452 (11) | 0.19819 (16) | 0.00163 (12) | 0.0413 (4) | |
H14 | 0.9394 | 0.1238 | −0.0414 | 0.050* | |
C15 | 0.74278 (19) | 0.6095 (2) | 0.26152 (16) | 0.0737 (6) | |
H15A | 0.7498 | 0.6999 | 0.3012 | 0.111* | |
H15B | 0.6696 | 0.5862 | 0.2397 | 0.111* | |
H15C | 0.7745 | 0.6166 | 0.1948 | 0.111* | |
H2A | 0.8014 (16) | 0.059 (2) | 0.0042 (11) | 0.080* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0316 (6) | 0.0421 (7) | 0.0427 (6) | −0.0080 (5) | 0.0150 (5) | 0.0011 (5) |
N2 | 0.0346 (6) | 0.0438 (7) | 0.0406 (7) | −0.0115 (5) | 0.0174 (5) | −0.0034 (5) |
O1 | 0.0437 (6) | 0.0549 (7) | 0.0533 (7) | −0.0208 (5) | 0.0262 (5) | −0.0121 (5) |
O2 | 0.0476 (6) | 0.0488 (6) | 0.0528 (6) | −0.0110 (5) | 0.0271 (5) | −0.0127 (5) |
O3 | 0.0459 (6) | 0.0687 (8) | 0.0696 (8) | −0.0257 (6) | 0.0318 (6) | −0.0206 (6) |
O4 | 0.0673 (8) | 0.0592 (7) | 0.0440 (6) | 0.0072 (6) | 0.0124 (5) | −0.0073 (5) |
C1 | 0.0315 (7) | 0.0377 (7) | 0.0382 (7) | −0.0047 (6) | 0.0111 (6) | 0.0015 (6) |
C2 | 0.0394 (8) | 0.0447 (8) | 0.0421 (8) | −0.0109 (6) | 0.0135 (6) | −0.0096 (6) |
C3 | 0.0390 (8) | 0.0501 (9) | 0.0379 (7) | −0.0068 (6) | 0.0178 (6) | −0.0062 (6) |
C4 | 0.0297 (7) | 0.0365 (7) | 0.0387 (7) | −0.0042 (5) | 0.0123 (6) | 0.0025 (6) |
C5 | 0.0427 (8) | 0.0450 (8) | 0.0445 (8) | −0.0149 (7) | 0.0170 (6) | −0.0126 (7) |
C6 | 0.0441 (8) | 0.0498 (9) | 0.0405 (8) | −0.0097 (7) | 0.0213 (7) | −0.0085 (7) |
C7 | 0.0364 (7) | 0.0452 (8) | 0.0392 (7) | −0.0076 (6) | 0.0154 (6) | −0.0015 (6) |
C8 | 0.0319 (7) | 0.0348 (7) | 0.0395 (7) | −0.0012 (6) | 0.0122 (6) | 0.0009 (6) |
C9 | 0.0306 (7) | 0.0351 (7) | 0.0382 (7) | −0.0029 (5) | 0.0106 (6) | 0.0015 (6) |
C10 | 0.0396 (8) | 0.0460 (8) | 0.0440 (8) | −0.0073 (6) | 0.0174 (6) | −0.0085 (6) |
C11 | 0.0404 (8) | 0.0463 (8) | 0.0487 (9) | −0.0146 (7) | 0.0144 (7) | −0.0118 (7) |
C12 | 0.0339 (7) | 0.0438 (8) | 0.0462 (8) | −0.0084 (6) | 0.0148 (6) | 0.0001 (6) |
C13 | 0.0423 (8) | 0.0507 (9) | 0.0475 (8) | −0.0093 (7) | 0.0217 (7) | −0.0115 (7) |
C14 | 0.0390 (8) | 0.0413 (8) | 0.0462 (8) | −0.0117 (6) | 0.0146 (6) | −0.0097 (6) |
C15 | 0.1079 (17) | 0.0625 (12) | 0.0508 (11) | −0.0016 (11) | 0.0144 (11) | 0.0044 (9) |
N1—C7 | 1.2718 (18) | C5—C6 | 1.3810 (19) |
N1—N2 | 1.3853 (15) | C5—H5 | 0.9300 |
N2—C8 | 1.3390 (18) | C6—H6 | 0.9300 |
N2—H2A | 0.892 (9) | C7—H7 | 0.9300 |
O1—C4 | 1.3611 (16) | C8—C9 | 1.4846 (18) |
O1—H1 | 0.8200 | C9—C10 | 1.3881 (19) |
O2—C8 | 1.2395 (16) | C9—C14 | 1.3943 (19) |
O3—C12 | 1.3587 (16) | C10—C11 | 1.3780 (19) |
O3—H3 | 0.8200 | C10—H10 | 0.9300 |
O4—C15 | 1.410 (2) | C11—C12 | 1.383 (2) |
O4—H4 | 0.8200 | C11—H11 | 0.9300 |
C1—C6 | 1.382 (2) | C12—C13 | 1.382 (2) |
C1—C2 | 1.3939 (19) | C13—C14 | 1.376 (2) |
C1—C7 | 1.4549 (18) | C13—H13 | 0.9300 |
C2—C3 | 1.3782 (19) | C14—H14 | 0.9300 |
C2—H2 | 0.9300 | C15—H15A | 0.9600 |
C3—C4 | 1.381 (2) | C15—H15B | 0.9600 |
C3—H3A | 0.9300 | C15—H15C | 0.9600 |
C4—C5 | 1.3817 (19) | ||
C7—N1—N2 | 115.06 (11) | O2—C8—N2 | 120.65 (12) |
C8—N2—N1 | 118.58 (11) | O2—C8—C9 | 121.28 (13) |
C8—N2—H2A | 122.8 (14) | N2—C8—C9 | 118.01 (11) |
N1—N2—H2A | 118.4 (14) | C10—C9—C14 | 118.34 (12) |
C4—O1—H1 | 109.5 | C10—C9—C8 | 118.16 (12) |
C12—O3—H3 | 109.5 | C14—C9—C8 | 123.46 (12) |
C15—O4—H4 | 109.5 | C11—C10—C9 | 121.15 (13) |
C6—C1—C2 | 118.21 (12) | C11—C10—H10 | 119.4 |
C6—C1—C7 | 119.15 (12) | C9—C10—H10 | 119.4 |
C2—C1—C7 | 122.64 (13) | C10—C11—C12 | 119.76 (14) |
C3—C2—C1 | 120.74 (13) | C10—C11—H11 | 120.1 |
C3—C2—H2 | 119.6 | C12—C11—H11 | 120.1 |
C1—C2—H2 | 119.6 | O3—C12—C13 | 117.65 (13) |
C2—C3—C4 | 120.09 (12) | O3—C12—C11 | 122.48 (13) |
C2—C3—H3A | 120.0 | C13—C12—C11 | 119.87 (13) |
C4—C3—H3A | 120.0 | C14—C13—C12 | 120.20 (13) |
O1—C4—C3 | 122.32 (12) | C14—C13—H13 | 119.9 |
O1—C4—C5 | 117.71 (13) | C12—C13—H13 | 119.9 |
C3—C4—C5 | 119.97 (12) | C13—C14—C9 | 120.66 (13) |
C6—C5—C4 | 119.52 (13) | C13—C14—H14 | 119.7 |
C6—C5—H5 | 120.2 | C9—C14—H14 | 119.7 |
C4—C5—H5 | 120.2 | O4—C15—H15A | 109.5 |
C5—C6—C1 | 121.46 (13) | O4—C15—H15B | 109.5 |
C5—C6—H6 | 119.3 | H15A—C15—H15B | 109.5 |
C1—C6—H6 | 119.3 | O4—C15—H15C | 109.5 |
N1—C7—C1 | 122.36 (13) | H15A—C15—H15C | 109.5 |
N1—C7—H7 | 118.8 | H15B—C15—H15C | 109.5 |
C1—C7—H7 | 118.8 |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O2i | 0.82 | 1.90 | 2.6877 (14) | 160 |
O1—H1···N1i | 0.82 | 2.61 | 3.1521 (16) | 125 |
O3—H3···O1ii | 0.82 | 1.90 | 2.7156 (15) | 172 |
O4—H4···O2 | 0.82 | 1.95 | 2.7629 (15) | 173 |
N2—H2A···O4iii | 0.89 (1) | 2.10 (1) | 2.9695 (16) | 165 (2) |
Symmetry codes: (i) −x+1, y−1/2, −z+1/2; (ii) x+1, y+1, z; (iii) x, −y+1/2, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | C14H12N2O3·CH4O |
Mr | 288.30 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 298 |
a, b, c (Å) | 12.927 (1), 9.277 (1), 11.946 (2) |
β (°) | 100.147 (1) |
V (Å3) | 1410.2 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.30 × 0.30 × 0.28 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.971, 0.973 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8435, 3064, 2382 |
Rint | 0.023 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.040, 0.118, 1.06 |
No. of reflections | 3064 |
No. of parameters | 197 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.22, −0.17 |
Computer programs: SMART (Bruker, 1998), SAINT (Bruker, 1998), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O2i | 0.82 | 1.90 | 2.6877 (14) | 159.5 |
O1—H1···N1i | 0.82 | 2.61 | 3.1521 (16) | 125.2 |
O3—H3···O1ii | 0.82 | 1.90 | 2.7156 (15) | 172.4 |
O4—H4···O2 | 0.82 | 1.95 | 2.7629 (15) | 173.4 |
N2—H2A···O4iii | 0.892 (9) | 2.100 (11) | 2.9695 (16) | 164.6 (19) |
Symmetry codes: (i) −x+1, y−1/2, −z+1/2; (ii) x+1, y+1, z; (iii) x, −y+1/2, z−1/2. |
Acknowledgements
Financial support of this work was provided by the Research Foundation of Liaoning Province (grant No. 2008470).
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.
Schiff bases derived from the condensation of aldehydes with hydrazides have been shown to possess excellent biological activities (Zhong et al., 2007; Raj et al., 2007; Jimenez-Pulido et al., 2008). Due to the easy synthesis of such compounds, many Schiff bases have been synthesized and structurally characterized (Yehye et al., 2008; Fun, Patil, Jebas et al. (2008); Fun, Patil, Rao et al. (2008); Yang et al., 2008; Ejsmont et al., 2008). Recently, we have reported a few such compounds (Ban & Li, 2008a,b; Li & Ban, 2009a,b). In this paper, we report the crystal structure of the new title compound.
In the structure of the title compound (Fig. 1) the Schiff base molecule is nearly planar, the dihedral angle between the two benzene rings being 7.2 (2)°. The molecule exists in a trans configuration with respect to the methylidene unit. The torsion angle C7—N1—N2—C8 is 0.3 (2)°.
In the crystal structure, the Schiff base molecules and the methanol molecules are linked through intermolecular O—H···O, N—H···O and O—H···N hydrogen bonds (Table 1), forming a three dimensional network (Fig. 2).