organic compounds\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

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ISSN: 2056-9890

(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

(Received 10 October 2011; accepted 14 October 2011; online 22 October 2011)

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[Brückner, C., Rettig, S. J. & Dolphin, D. (2000). Inorg. Chem. 39, 6100-6106.]); Harrop et al.(2003[Harrop, T. C., Olmstead, M. M. & Mascharak, P. K. (2003). Chem. Commun. pp. 410-411.]); Zhang et al. (2008[Zhang, H.-Q., Li, J.-Z., Zhang, Y. & Zhang, D. (2008). Chin. J. Inorg. Chem. 24, 990-993.]). For related structures, see: Diao et al. (2007[Diao, Y.-P., Zhang, J.-K., Xie, S.-Q. & Kang, T.-G. (2007). Acta Cryst. E63, o4908.]); Jiang et al. (2008[Jiang, Q.-H., Xu, Y.-H., Jian, L.-Y. & Zhao, L.-M. (2008). Acta Cryst. E64, o338.]); Huang et al. (2008[Huang, S.-S., Diao, Y.-P. & Kang, T. G. (2008). Z. Kristallogr.-New Cryst. Struct. 223, 167-168.]); Deng et al. (2009[Deng, S., Han, L., Huang, S., Zhang, H., Diao, Y. & Liu, K. (2009). Acta Cryst. E65, o721.]).

[Scheme 1]

Experimental

Crystal data
  • C14H11ClN2O3·2H2O

  • Mr = 326.73

  • Monoclinic, P 21 /c

  • a = 8.023 (2) Å

  • b = 11.852 (4) Å

  • c = 16.318 (5) Å

  • β = 100.387 (4)°

  • V = 1526.1 (8) Å3

  • Z = 4

  • Mo Kα radiation

  • μ = 0.28 mm−1

  • T = 296 K

  • 0.44 × 0.12 × 0.07 mm

Data collection
  • Bruker APEXII CCD diffractometer

  • 12729 measured reflections

  • 3522 independent reflections

  • 2286 reflections with I > 2σ(I)

  • Rint = 0.040

Refinement
  • R[F2 > 2σ(F2)] = 0.051

  • wR(F2) = 0.140

  • S = 1.03

  • 3522 reflections

  • 199 parameters

  • H-atom parameters constrained

  • Δρmax = 0.32 e Å−3

  • Δρmin = −0.33 e Å−3

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A D—H H⋯A DA 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+{\script{1\over 2}}, z-{\script{1\over 2}}]; (ii) [-x+1, y+{\script{1\over 2}}, -z+{\script{1\over 2}}]; (iii) x+1, y, z; (iv) [-x+1, y-{\script{1\over 2}}, -z+{\script{1\over 2}}].

Data collection: APEX2 (Bruker, 2005[Bruker (2005). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: APEX2; data reduction: SAINT (Bruker, 2005[Bruker (2005). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); molecular graphics: SHELXTL (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); software used to prepare material for publication: SHELXL97.

Supporting information


Comment top

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.

Related literature top

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 top

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.

Refinement top

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 refinement in the riding model approximation, with Uiso(H)=) =1.2-1.5Ueq of the parent atom.

Computing details top

Data collection: SMART [or APEX2?] (Bruker, 2001); cell refinement: 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).

Figures top
[Figure 1] Fig. 1. The molecular structure of (I) showing the atomic numbering and 30% probability displacement ellipsoids.
(E)-N'-(2-Chlorobenzylidene)-3,5-dihydroxybenzohydrazide dihydrate top
Crystal data top
C14H11ClN2O3·2H2OF(000) = 680
Mr = 326.73Dx = 1.422 Mg m3
Monoclinic, P21/cMo Kα radiation, λ = 0.71073 Å
Hall symbol: -P2ybcCell parameters from 4061 reflections
a = 8.023 (2) Åθ = 2.5–27.1°
b = 11.852 (4) ŵ = 0.28 mm1
c = 16.318 (5) ÅT = 296 K
β = 100.387 (4)°Stick, yellow
V = 1526.1 (8) Å30.44 × 0.12 × 0.07 mm
Z = 4
Data collection top
Bruker APEXII CCD
diffractometer
2286 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tubeRint = 0.040
Graphite monochromatorθmax = 27.6°, θmin = 2.1°
ϕ and ω scansh = 1010
12729 measured reflectionsk = 1515
3522 independent reflectionsl = 2021
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.051Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.140H-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 parametersΔρmax = 0.32 e Å3
0 restraintsΔρmin = 0.33 e Å3
Crystal data top
C14H11ClN2O3·2H2OV = 1526.1 (8) Å3
Mr = 326.73Z = 4
Monoclinic, P21/cMo Kα radiation
a = 8.023 (2) ŵ = 0.28 mm1
b = 11.852 (4) ÅT = 296 K
c = 16.318 (5) Å0.44 × 0.12 × 0.07 mm
β = 100.387 (4)°
Data collection top
Bruker APEXII CCD
diffractometer
2286 reflections with I > 2σ(I)
12729 measured reflectionsRint = 0.040
3522 independent reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0510 restraints
wR(F2) = 0.140H-atom parameters constrained
S = 1.03Δρmax = 0.32 e Å3
3522 reflectionsΔρmin = 0.33 e Å3
199 parameters
Special details top

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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Cl10.07549 (13)0.73732 (7)0.46696 (6)0.0836 (3)
O10.4482 (3)0.20583 (16)0.45642 (10)0.0555 (5)
O20.7564 (2)0.07180 (15)0.22642 (10)0.0508 (5)
H2B0.79320.04260.27160.076*
O30.3480 (3)0.33745 (18)0.10033 (10)0.0615 (6)
H3A0.38640.31770.05930.092*
N10.3161 (2)0.41028 (17)0.48357 (10)0.0374 (4)
N20.3589 (2)0.37857 (17)0.40850 (10)0.0368 (4)
H2A0.34500.42520.36740.044*
C10.1081 (3)0.6554 (2)0.55602 (17)0.0472 (6)
C20.0554 (4)0.6968 (3)0.6271 (2)0.0621 (8)
H20.00220.76660.62570.074*
C30.0818 (4)0.6351 (3)0.6986 (2)0.0678 (9)
H30.04830.66350.74620.081*
C40.1571 (4)0.5318 (3)0.70062 (18)0.0687 (9)
H40.17380.48970.74950.082*
C50.2090 (4)0.4891 (3)0.63044 (16)0.0550 (7)
H50.25960.41840.63260.066*
C60.1866 (3)0.5505 (2)0.55659 (14)0.0382 (5)
C70.2396 (3)0.5047 (2)0.48164 (14)0.0371 (5)
H70.21710.54530.43210.044*
C80.4220 (3)0.2757 (2)0.39941 (12)0.0353 (5)
C90.4635 (3)0.25014 (19)0.31552 (12)0.0326 (5)
C100.5859 (3)0.16929 (19)0.31167 (12)0.0347 (5)
H100.63570.13020.35920.042*
C110.6334 (3)0.14750 (19)0.23525 (13)0.0351 (5)
C120.5573 (3)0.2046 (2)0.16457 (12)0.0387 (5)
H120.59160.19100.11400.046*
C130.4305 (3)0.2818 (2)0.16880 (12)0.0387 (5)
C140.3828 (3)0.3059 (2)0.24457 (13)0.0393 (5)
H140.29810.35850.24770.047*
O40.2697 (4)0.0135 (3)0.4316 (2)0.1159 (11)
H4A0.31770.06880.45950.174*
H4B0.32660.04730.43390.174*
O50.9176 (3)0.00817 (18)0.37266 (13)0.0690 (6)
H5A1.01820.00700.40010.104*
H5B0.85540.04650.39930.104*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Cl10.1051 (7)0.0521 (5)0.0969 (7)0.0157 (5)0.0274 (6)0.0134 (4)
O10.0881 (14)0.0572 (11)0.0272 (8)0.0154 (10)0.0261 (9)0.0084 (8)
O20.0624 (12)0.0562 (11)0.0360 (9)0.0213 (9)0.0146 (8)0.0016 (8)
O30.0820 (14)0.0817 (14)0.0224 (8)0.0345 (12)0.0139 (8)0.0076 (8)
N10.0404 (11)0.0505 (12)0.0244 (8)0.0010 (9)0.0141 (8)0.0046 (8)
N20.0438 (11)0.0479 (11)0.0217 (8)0.0006 (9)0.0140 (8)0.0011 (8)
C10.0379 (14)0.0438 (14)0.0619 (16)0.0085 (11)0.0146 (12)0.0153 (12)
C20.0455 (16)0.0534 (17)0.093 (2)0.0089 (13)0.0284 (16)0.0352 (17)
C30.0585 (19)0.087 (2)0.067 (2)0.0154 (17)0.0349 (16)0.0362 (18)
C40.071 (2)0.097 (3)0.0449 (15)0.0004 (19)0.0279 (14)0.0074 (16)
C50.0568 (17)0.0714 (19)0.0414 (14)0.0092 (14)0.0212 (12)0.0046 (13)
C60.0311 (12)0.0477 (13)0.0384 (12)0.0053 (10)0.0131 (9)0.0095 (10)
C70.0366 (12)0.0455 (13)0.0311 (11)0.0054 (11)0.0114 (9)0.0022 (9)
C80.0394 (12)0.0451 (13)0.0240 (10)0.0002 (10)0.0129 (9)0.0016 (9)
C90.0368 (12)0.0419 (12)0.0209 (9)0.0035 (10)0.0103 (8)0.0017 (8)
C100.0403 (13)0.0412 (12)0.0235 (9)0.0004 (10)0.0081 (9)0.0006 (9)
C110.0406 (13)0.0376 (12)0.0290 (10)0.0009 (10)0.0112 (9)0.0055 (9)
C120.0497 (14)0.0474 (13)0.0220 (9)0.0015 (11)0.0146 (9)0.0062 (9)
C130.0464 (13)0.0481 (13)0.0222 (10)0.0042 (11)0.0076 (9)0.0001 (9)
C140.0464 (14)0.0480 (13)0.0257 (10)0.0100 (11)0.0124 (9)0.0005 (9)
O40.099 (2)0.098 (2)0.138 (3)0.0265 (18)0.0111 (19)0.0009 (19)
O50.0685 (14)0.0749 (14)0.0616 (12)0.0020 (11)0.0063 (10)0.0216 (11)
Geometric parameters (Å, º) top
Cl1—C11.728 (3)C5—C61.391 (4)
O1—C81.235 (3)C5—H50.9300
O2—C111.361 (3)C6—C71.469 (3)
O2—H2B0.8200C7—H70.9300
O3—C131.362 (3)C8—C91.497 (3)
O3—H3A0.8200C9—C101.382 (3)
N1—C71.274 (3)C9—C141.388 (3)
N1—N21.383 (2)C10—C111.392 (3)
N2—C81.338 (3)C10—H100.9300
N2—H2A0.8600C11—C121.381 (3)
C1—C61.392 (4)C12—C131.379 (3)
C1—C21.393 (4)C12—H120.9300
C2—C31.361 (5)C13—C141.388 (3)
C2—H20.9300C14—H140.9300
C3—C41.363 (5)O4—H4A0.8500
C3—H30.9300O4—H4B0.8500
C4—C51.383 (4)O5—H5A0.8500
C4—H40.9300O5—H5B0.8500
C11—O2—H2B109.5N1—C7—H7119.5
C13—O3—H3A109.5C6—C7—H7119.5
C7—N1—N2114.36 (19)O1—C8—N2122.96 (18)
C8—N2—N1120.34 (18)O1—C8—C9121.1 (2)
C8—N2—H2A119.8N2—C8—C9115.90 (19)
N1—N2—H2A119.8C10—C9—C14121.39 (18)
C6—C1—C2120.9 (3)C10—C9—C8117.35 (19)
C6—C1—Cl1120.46 (19)C14—C9—C8121.3 (2)
C2—C1—Cl1118.6 (2)C9—C10—C11118.7 (2)
C3—C2—C1120.1 (3)C9—C10—H10120.6
C3—C2—H2120.0C11—C10—H10120.6
C1—C2—H2120.0O2—C11—C12117.05 (18)
C2—C3—C4120.2 (3)O2—C11—C10122.6 (2)
C2—C3—H3119.9C12—C11—C10120.4 (2)
C4—C3—H3119.9C13—C12—C11120.16 (18)
C3—C4—C5120.4 (3)C13—C12—H12119.9
C3—C4—H4119.8C11—C12—H12119.9
C5—C4—H4119.8O3—C13—C12122.25 (18)
C4—C5—C6121.0 (3)O3—C13—C14117.4 (2)
C4—C5—H5119.5C12—C13—C14120.3 (2)
C6—C5—H5119.5C9—C14—C13118.9 (2)
C5—C6—C1117.4 (2)C9—C14—H14120.6
C5—C6—C7121.1 (2)C13—C14—H14120.6
C1—C6—C7121.5 (2)H4A—O4—H4B116.3
N1—C7—C6120.9 (2)H5A—O5—H5B109.2
C7—N1—N2—C8172.3 (2)O1—C8—C9—C1024.0 (3)
C6—C1—C2—C30.6 (4)N2—C8—C9—C10154.7 (2)
Cl1—C1—C2—C3178.9 (2)O1—C8—C9—C14156.3 (2)
C1—C2—C3—C41.1 (5)N2—C8—C9—C1425.0 (3)
C2—C3—C4—C50.6 (5)C14—C9—C10—C112.8 (3)
C3—C4—C5—C60.4 (5)C8—C9—C10—C11176.9 (2)
C4—C5—C6—C10.9 (4)C9—C10—C11—O2178.0 (2)
C4—C5—C6—C7179.2 (3)C9—C10—C11—C121.0 (3)
C2—C1—C6—C50.4 (4)O2—C11—C12—C13179.4 (2)
Cl1—C1—C6—C5179.9 (2)C10—C11—C12—C131.6 (4)
C2—C1—C6—C7178.7 (2)C11—C12—C13—O3177.8 (2)
Cl1—C1—C6—C71.7 (3)C11—C12—C13—C142.4 (4)
N2—N1—C7—C6179.62 (19)C10—C9—C14—C132.0 (4)
C5—C6—C7—N13.9 (4)C8—C9—C14—C13177.7 (2)
C1—C6—C7—N1177.8 (2)O3—C13—C14—C9179.6 (2)
N1—N2—C8—O11.5 (4)C12—C13—C14—C90.6 (4)
N1—N2—C8—C9179.82 (19)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O2—H2B···O50.821.872.674 (3)168
O3—H3A···O1i0.821.852.665 (2)169
N2—H2A···O2ii0.862.363.196 (3)164
O4—H4B···O10.852.122.960 (4)171
O5—H5A···O4iii0.851.992.816 (4)163
O5—H5B···O3iv0.852.142.902 (3)150
Symmetry codes: (i) x, y+1/2, z1/2; (ii) x+1, y+1/2, z+1/2; (iii) x+1, y, z; (iv) x+1, y1/2, z+1/2.

Experimental details

Crystal data
Chemical formulaC14H11ClN2O3·2H2O
Mr326.73
Crystal system, space groupMonoclinic, P21/c
Temperature (K)296
a, b, c (Å)8.023 (2), 11.852 (4), 16.318 (5)
β (°) 100.387 (4)
V3)1526.1 (8)
Z4
Radiation typeMo Kα
µ (mm1)0.28
Crystal size (mm)0.44 × 0.12 × 0.07
Data collection
DiffractometerBruker APEXII CCD
diffractometer
Absorption correction
No. of measured, independent and
observed [I > 2σ(I)] reflections
12729, 3522, 2286
Rint0.040
(sin θ/λ)max1)0.653
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.051, 0.140, 1.03
No. of reflections3522
No. of parameters199
H-atom treatmentH-atom parameters constrained
Δρmax, Δρmin (e Å3)0.32, 0.33

Computer programs: SMART [or APEX2?] (Bruker, 2001), SAINT-Plus (Bruker, 2003), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).

Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O2—H2B···O50.821.872.674 (3)168.2
O3—H3A···O1i0.821.852.665 (2)169.3
N2—H2A···O2ii0.862.363.196 (3)163.5
O4—H4B···O10.852.122.960 (4)170.5
O5—H5A···O4iii0.851.992.816 (4)163.2
O5—H5B···O3iv0.852.142.902 (3)149.8
Symmetry codes: (i) x, y+1/2, z1/2; (ii) x+1, y+1/2, z+1/2; (iii) x+1, y, z; (iv) x+1, y1/2, 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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Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
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