organic compounds
(E)-N′-(2-Chlorobenzylidene)-3,5-dihydroxybenzohydrazide dihydrate
aPharmacy College of Ningxia Medical University, Yinchuan, Ningxia Province 750004, People's Republic of China, bTraditional Chinese Medicine College of Ningxia Medical University, Ningxia Province, 750004, People's Republic of China, and cMinority Traditional Medical Center of Minzu University of China, Beijing 100081, People's Republic of China
*Correspondence e-mail: Nanyiailing10@126.com
In the Schiff base molecule of the title compound, C14H11ClN2O3·2H2O, the benzene rings form a dihedral angle of 20.6 (1)°. The water molecules of crystallization are involved in the formation of a three-dimensional hydrogen-bonding network via O—H⋯O and N—H⋯O hydrogen bonds.
Related literature
For general background to Schiff base compounds, see: Brückner et al. (2000); Harrop et al.(2003); Zhang et al. (2008). For related structures, see: Diao et al. (2007); Jiang et al. (2008); Huang et al. (2008); Deng et al. (2009).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: APEX2 (Bruker, 2005); cell APEX2; data reduction: SAINT (Bruker, 2005); 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: SHELXL97.
Supporting information
10.1107/S1600536811042681/cv5172sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811042681/cv5172Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536811042681/cv5172Isup3.cml
2-Chlorobenzaldehyde (0.1 mmol, 14.1 mg) and 3,5-dihydroxybenzhydrazide (0.1 mmol, 16.8 mg) were dissolved in a methanol solution (10 ml). The mixture was stirred at room temperature for 1 h and filtered. After keeping the filtrate in air for three days, yellow crystals were formed.
H atoms were placed in calculated positions (C—H 0.93 Å; N—H 0.86 Å; O—H 0.82 Å) and were included in the
in the riding model approximation, with Uiso(H)=) =1.2-1.5Ueq of the parent atom.Data collection: SMART [or APEX2?] (Bruker, 2001); cell
SAINT-Plus (Bruker, 2003); data reduction: SAINT-Plus (Bruker, 2003); 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: SHELXL97 (Sheldrick, 2008).Fig. 1. The molecular structure of (I) showing the atomic numbering and 30% probability displacement ellipsoids. |
C14H11ClN2O3·2H2O | F(000) = 680 |
Mr = 326.73 | Dx = 1.422 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P2ybc | Cell parameters from 4061 reflections |
a = 8.023 (2) Å | θ = 2.5–27.1° |
b = 11.852 (4) Å | µ = 0.28 mm−1 |
c = 16.318 (5) Å | T = 296 K |
β = 100.387 (4)° | Stick, yellow |
V = 1526.1 (8) Å3 | 0.44 × 0.12 × 0.07 mm |
Z = 4 |
Bruker APEXII CCD diffractometer | 2286 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.040 |
Graphite monochromator | θmax = 27.6°, θmin = 2.1° |
ϕ and ω scans | h = −10→10 |
12729 measured reflections | k = −15→15 |
3522 independent reflections | l = −20→21 |
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)] = 0.051 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.140 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.044P)2 + 1.2P] where P = (Fo2 + 2Fc2)/3 |
3522 reflections | (Δ/σ)max < 0.001 |
199 parameters | Δρmax = 0.32 e Å−3 |
0 restraints | Δρmin = −0.33 e Å−3 |
C14H11ClN2O3·2H2O | V = 1526.1 (8) Å3 |
Mr = 326.73 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 8.023 (2) Å | µ = 0.28 mm−1 |
b = 11.852 (4) Å | T = 296 K |
c = 16.318 (5) Å | 0.44 × 0.12 × 0.07 mm |
β = 100.387 (4)° |
Bruker APEXII CCD diffractometer | 2286 reflections with I > 2σ(I) |
12729 measured reflections | Rint = 0.040 |
3522 independent reflections |
R[F2 > 2σ(F2)] = 0.051 | 0 restraints |
wR(F2) = 0.140 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.32 e Å−3 |
3522 reflections | Δρmin = −0.33 e Å−3 |
199 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 | ||
Cl1 | 0.07549 (13) | 0.73732 (7) | 0.46696 (6) | 0.0836 (3) | |
O1 | 0.4482 (3) | 0.20583 (16) | 0.45642 (10) | 0.0555 (5) | |
O2 | 0.7564 (2) | 0.07180 (15) | 0.22642 (10) | 0.0508 (5) | |
H2B | 0.7932 | 0.0426 | 0.2716 | 0.076* | |
O3 | 0.3480 (3) | 0.33745 (18) | 0.10033 (10) | 0.0615 (6) | |
H3A | 0.3864 | 0.3177 | 0.0593 | 0.092* | |
N1 | 0.3161 (2) | 0.41028 (17) | 0.48357 (10) | 0.0374 (4) | |
N2 | 0.3589 (2) | 0.37857 (17) | 0.40850 (10) | 0.0368 (4) | |
H2A | 0.3450 | 0.4252 | 0.3674 | 0.044* | |
C1 | 0.1081 (3) | 0.6554 (2) | 0.55602 (17) | 0.0472 (6) | |
C2 | 0.0554 (4) | 0.6968 (3) | 0.6271 (2) | 0.0621 (8) | |
H2 | 0.0022 | 0.7666 | 0.6257 | 0.074* | |
C3 | 0.0818 (4) | 0.6351 (3) | 0.6986 (2) | 0.0678 (9) | |
H3 | 0.0483 | 0.6635 | 0.7462 | 0.081* | |
C4 | 0.1571 (4) | 0.5318 (3) | 0.70062 (18) | 0.0687 (9) | |
H4 | 0.1738 | 0.4897 | 0.7495 | 0.082* | |
C5 | 0.2090 (4) | 0.4891 (3) | 0.63044 (16) | 0.0550 (7) | |
H5 | 0.2596 | 0.4184 | 0.6326 | 0.066* | |
C6 | 0.1866 (3) | 0.5505 (2) | 0.55659 (14) | 0.0382 (5) | |
C7 | 0.2396 (3) | 0.5047 (2) | 0.48164 (14) | 0.0371 (5) | |
H7 | 0.2171 | 0.5453 | 0.4321 | 0.044* | |
C8 | 0.4220 (3) | 0.2757 (2) | 0.39941 (12) | 0.0353 (5) | |
C9 | 0.4635 (3) | 0.25014 (19) | 0.31552 (12) | 0.0326 (5) | |
C10 | 0.5859 (3) | 0.16929 (19) | 0.31167 (12) | 0.0347 (5) | |
H10 | 0.6357 | 0.1302 | 0.3592 | 0.042* | |
C11 | 0.6334 (3) | 0.14750 (19) | 0.23525 (13) | 0.0351 (5) | |
C12 | 0.5573 (3) | 0.2046 (2) | 0.16457 (12) | 0.0387 (5) | |
H12 | 0.5916 | 0.1910 | 0.1140 | 0.046* | |
C13 | 0.4305 (3) | 0.2818 (2) | 0.16880 (12) | 0.0387 (5) | |
C14 | 0.3828 (3) | 0.3059 (2) | 0.24457 (13) | 0.0393 (5) | |
H14 | 0.2981 | 0.3585 | 0.2477 | 0.047* | |
O4 | 0.2697 (4) | −0.0135 (3) | 0.4316 (2) | 0.1159 (11) | |
H4A | 0.3177 | −0.0688 | 0.4595 | 0.174* | |
H4B | 0.3266 | 0.0473 | 0.4339 | 0.174* | |
O5 | 0.9176 (3) | −0.00817 (18) | 0.37266 (13) | 0.0690 (6) | |
H5A | 1.0182 | −0.0070 | 0.4001 | 0.104* | |
H5B | 0.8554 | −0.0465 | 0.3993 | 0.104* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.1051 (7) | 0.0521 (5) | 0.0969 (7) | 0.0157 (5) | 0.0274 (6) | 0.0134 (4) |
O1 | 0.0881 (14) | 0.0572 (11) | 0.0272 (8) | 0.0154 (10) | 0.0261 (9) | 0.0084 (8) |
O2 | 0.0624 (12) | 0.0562 (11) | 0.0360 (9) | 0.0213 (9) | 0.0146 (8) | −0.0016 (8) |
O3 | 0.0820 (14) | 0.0817 (14) | 0.0224 (8) | 0.0345 (12) | 0.0139 (8) | 0.0076 (8) |
N1 | 0.0404 (11) | 0.0505 (12) | 0.0244 (8) | 0.0010 (9) | 0.0141 (8) | −0.0046 (8) |
N2 | 0.0438 (11) | 0.0479 (11) | 0.0217 (8) | 0.0006 (9) | 0.0140 (8) | −0.0011 (8) |
C1 | 0.0379 (14) | 0.0438 (14) | 0.0619 (16) | −0.0085 (11) | 0.0146 (12) | −0.0153 (12) |
C2 | 0.0455 (16) | 0.0534 (17) | 0.093 (2) | −0.0089 (13) | 0.0284 (16) | −0.0352 (17) |
C3 | 0.0585 (19) | 0.087 (2) | 0.067 (2) | −0.0154 (17) | 0.0349 (16) | −0.0362 (18) |
C4 | 0.071 (2) | 0.097 (3) | 0.0449 (15) | 0.0004 (19) | 0.0279 (14) | −0.0074 (16) |
C5 | 0.0568 (17) | 0.0714 (19) | 0.0414 (14) | 0.0092 (14) | 0.0212 (12) | −0.0046 (13) |
C6 | 0.0311 (12) | 0.0477 (13) | 0.0384 (12) | −0.0053 (10) | 0.0131 (9) | −0.0095 (10) |
C7 | 0.0366 (12) | 0.0455 (13) | 0.0311 (11) | −0.0054 (11) | 0.0114 (9) | −0.0022 (9) |
C8 | 0.0394 (12) | 0.0451 (13) | 0.0240 (10) | 0.0002 (10) | 0.0129 (9) | −0.0016 (9) |
C9 | 0.0368 (12) | 0.0419 (12) | 0.0209 (9) | −0.0035 (10) | 0.0103 (8) | −0.0017 (8) |
C10 | 0.0403 (13) | 0.0412 (12) | 0.0235 (9) | 0.0004 (10) | 0.0081 (9) | 0.0006 (9) |
C11 | 0.0406 (13) | 0.0376 (12) | 0.0290 (10) | −0.0009 (10) | 0.0112 (9) | −0.0055 (9) |
C12 | 0.0497 (14) | 0.0474 (13) | 0.0220 (9) | 0.0015 (11) | 0.0146 (9) | −0.0062 (9) |
C13 | 0.0464 (13) | 0.0481 (13) | 0.0222 (10) | 0.0042 (11) | 0.0076 (9) | 0.0001 (9) |
C14 | 0.0464 (14) | 0.0480 (13) | 0.0257 (10) | 0.0100 (11) | 0.0124 (9) | −0.0005 (9) |
O4 | 0.099 (2) | 0.098 (2) | 0.138 (3) | −0.0265 (18) | −0.0111 (19) | 0.0009 (19) |
O5 | 0.0685 (14) | 0.0749 (14) | 0.0616 (12) | 0.0020 (11) | 0.0063 (10) | 0.0216 (11) |
Cl1—C1 | 1.728 (3) | C5—C6 | 1.391 (4) |
O1—C8 | 1.235 (3) | C5—H5 | 0.9300 |
O2—C11 | 1.361 (3) | C6—C7 | 1.469 (3) |
O2—H2B | 0.8200 | C7—H7 | 0.9300 |
O3—C13 | 1.362 (3) | C8—C9 | 1.497 (3) |
O3—H3A | 0.8200 | C9—C10 | 1.382 (3) |
N1—C7 | 1.274 (3) | C9—C14 | 1.388 (3) |
N1—N2 | 1.383 (2) | C10—C11 | 1.392 (3) |
N2—C8 | 1.338 (3) | C10—H10 | 0.9300 |
N2—H2A | 0.8600 | C11—C12 | 1.381 (3) |
C1—C6 | 1.392 (4) | C12—C13 | 1.379 (3) |
C1—C2 | 1.393 (4) | C12—H12 | 0.9300 |
C2—C3 | 1.361 (5) | C13—C14 | 1.388 (3) |
C2—H2 | 0.9300 | C14—H14 | 0.9300 |
C3—C4 | 1.363 (5) | O4—H4A | 0.8500 |
C3—H3 | 0.9300 | O4—H4B | 0.8500 |
C4—C5 | 1.383 (4) | O5—H5A | 0.8500 |
C4—H4 | 0.9300 | O5—H5B | 0.8500 |
C11—O2—H2B | 109.5 | N1—C7—H7 | 119.5 |
C13—O3—H3A | 109.5 | C6—C7—H7 | 119.5 |
C7—N1—N2 | 114.36 (19) | O1—C8—N2 | 122.96 (18) |
C8—N2—N1 | 120.34 (18) | O1—C8—C9 | 121.1 (2) |
C8—N2—H2A | 119.8 | N2—C8—C9 | 115.90 (19) |
N1—N2—H2A | 119.8 | C10—C9—C14 | 121.39 (18) |
C6—C1—C2 | 120.9 (3) | C10—C9—C8 | 117.35 (19) |
C6—C1—Cl1 | 120.46 (19) | C14—C9—C8 | 121.3 (2) |
C2—C1—Cl1 | 118.6 (2) | C9—C10—C11 | 118.7 (2) |
C3—C2—C1 | 120.1 (3) | C9—C10—H10 | 120.6 |
C3—C2—H2 | 120.0 | C11—C10—H10 | 120.6 |
C1—C2—H2 | 120.0 | O2—C11—C12 | 117.05 (18) |
C2—C3—C4 | 120.2 (3) | O2—C11—C10 | 122.6 (2) |
C2—C3—H3 | 119.9 | C12—C11—C10 | 120.4 (2) |
C4—C3—H3 | 119.9 | C13—C12—C11 | 120.16 (18) |
C3—C4—C5 | 120.4 (3) | C13—C12—H12 | 119.9 |
C3—C4—H4 | 119.8 | C11—C12—H12 | 119.9 |
C5—C4—H4 | 119.8 | O3—C13—C12 | 122.25 (18) |
C4—C5—C6 | 121.0 (3) | O3—C13—C14 | 117.4 (2) |
C4—C5—H5 | 119.5 | C12—C13—C14 | 120.3 (2) |
C6—C5—H5 | 119.5 | C9—C14—C13 | 118.9 (2) |
C5—C6—C1 | 117.4 (2) | C9—C14—H14 | 120.6 |
C5—C6—C7 | 121.1 (2) | C13—C14—H14 | 120.6 |
C1—C6—C7 | 121.5 (2) | H4A—O4—H4B | 116.3 |
N1—C7—C6 | 120.9 (2) | H5A—O5—H5B | 109.2 |
C7—N1—N2—C8 | −172.3 (2) | O1—C8—C9—C10 | −24.0 (3) |
C6—C1—C2—C3 | 0.6 (4) | N2—C8—C9—C10 | 154.7 (2) |
Cl1—C1—C2—C3 | −178.9 (2) | O1—C8—C9—C14 | 156.3 (2) |
C1—C2—C3—C4 | −1.1 (5) | N2—C8—C9—C14 | −25.0 (3) |
C2—C3—C4—C5 | 0.6 (5) | C14—C9—C10—C11 | 2.8 (3) |
C3—C4—C5—C6 | 0.4 (5) | C8—C9—C10—C11 | −176.9 (2) |
C4—C5—C6—C1 | −0.9 (4) | C9—C10—C11—O2 | 178.0 (2) |
C4—C5—C6—C7 | −179.2 (3) | C9—C10—C11—C12 | −1.0 (3) |
C2—C1—C6—C5 | 0.4 (4) | O2—C11—C12—C13 | 179.4 (2) |
Cl1—C1—C6—C5 | 179.9 (2) | C10—C11—C12—C13 | −1.6 (4) |
C2—C1—C6—C7 | 178.7 (2) | C11—C12—C13—O3 | −177.8 (2) |
Cl1—C1—C6—C7 | −1.7 (3) | C11—C12—C13—C14 | 2.4 (4) |
N2—N1—C7—C6 | −179.62 (19) | C10—C9—C14—C13 | −2.0 (4) |
C5—C6—C7—N1 | −3.9 (4) | C8—C9—C14—C13 | 177.7 (2) |
C1—C6—C7—N1 | 177.8 (2) | O3—C13—C14—C9 | 179.6 (2) |
N1—N2—C8—O1 | −1.5 (4) | C12—C13—C14—C9 | −0.6 (4) |
N1—N2—C8—C9 | 179.82 (19) |
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2B···O5 | 0.82 | 1.87 | 2.674 (3) | 168 |
O3—H3A···O1i | 0.82 | 1.85 | 2.665 (2) | 169 |
N2—H2A···O2ii | 0.86 | 2.36 | 3.196 (3) | 164 |
O4—H4B···O1 | 0.85 | 2.12 | 2.960 (4) | 171 |
O5—H5A···O4iii | 0.85 | 1.99 | 2.816 (4) | 163 |
O5—H5B···O3iv | 0.85 | 2.14 | 2.902 (3) | 150 |
Symmetry codes: (i) x, −y+1/2, z−1/2; (ii) −x+1, y+1/2, −z+1/2; (iii) x+1, y, z; (iv) −x+1, y−1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C14H11ClN2O3·2H2O |
Mr | 326.73 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 296 |
a, b, c (Å) | 8.023 (2), 11.852 (4), 16.318 (5) |
β (°) | 100.387 (4) |
V (Å3) | 1526.1 (8) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.28 |
Crystal size (mm) | 0.44 × 0.12 × 0.07 |
Data collection | |
Diffractometer | Bruker APEXII CCD diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 12729, 3522, 2286 |
Rint | 0.040 |
(sin θ/λ)max (Å−1) | 0.653 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.051, 0.140, 1.03 |
No. of reflections | 3522 |
No. of parameters | 199 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.32, −0.33 |
Computer programs: SMART [or APEX2?] (Bruker, 2001), SAINT-Plus (Bruker, 2003), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2B···O5 | 0.82 | 1.87 | 2.674 (3) | 168.2 |
O3—H3A···O1i | 0.82 | 1.85 | 2.665 (2) | 169.3 |
N2—H2A···O2ii | 0.86 | 2.36 | 3.196 (3) | 163.5 |
O4—H4B···O1 | 0.85 | 2.12 | 2.960 (4) | 170.5 |
O5—H5A···O4iii | 0.85 | 1.99 | 2.816 (4) | 163.2 |
O5—H5B···O3iv | 0.85 | 2.14 | 2.902 (3) | 149.8 |
Symmetry codes: (i) x, −y+1/2, z−1/2; (ii) −x+1, y+1/2, −z+1/2; (iii) x+1, y, z; (iv) −x+1, y−1/2, −z+1/2. |
Acknowledgements
This project was supported by the National Natural Science Foundation of China (grant No. 81102893) and 2011 Ningxia Science and Technology Key Projects (grant No. 2011-25) and 2009 Ningxia Science and Technology Key Projects (grant No. 232).
References
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Schiff base compounds are known to exhibit antibacterial and antitumor properties (Brückner et al., 2000; Harrop et al., 2003; Zhang et al., 2008). In order to expand this filed, we report here the structure of the title compound (I).
In (I) (Fig. 1), all bond lengths and angles are normal and comparable with those found in the related compounds (Diao et al., 2007; Deng et al., 2009; Huang et al., 2008, Jiang et al., 2008). In the Shiff base molecule, two benzene rings form a dihedral angle of 20.6 (1)°.
In the crystal structure, intermolecular O—H···O and N—H···O hydrogen bonds (Table 1) consolidate the crystal packing.