supplementary materials


HTML versionpdf versioncif file3d viewstructure factorssupplementary materialsCIF check reportsimilar papers Open access

om2256 scheme

Acta Cryst. (2008). E64, o1758    [ doi:10.1107/S1600536808025816 ]

4-Chloro-N'-(5-chloro-2-hydroxybenzylidene)benzohydrazide

D.-S. Yang

Abstract top

The molecule of the title compound, C14H10Cl2N2O2, displays a trans configuration with respect to the C=N double bond and has an intramolecular O-H...N hydrogen bond. The dihedral angle between the two benzene rings is 1.4 (2)°. In the crystal structure, molecules are linked through intermolecular N-H...O hydrogen bonds, forming chains running along the a direction.

Comment top

Schiff base compounds have been of great interest for a long time. These compounds play an important role in the development of coordination chemistry (Musie et al., 2001; Bernardo et al., 1996; Paul et al., 2002). Recently, we have reported a few Schiff base compounds (Yang, 2006a,b,c,d,e, 2007a,b,c; Yang & Guo, 2006). As a further investigation of this work, the crystal structure of the title compound is reported here.

The molecule of the title compound, displays a trans configuration with respect to the C═N double bond (Fig. 1). The dihedral angle between the two benzene rings is 1.4 (2)°. All the bond lengths are within normal ranges (Allen et al., 1987). The C7═N1 bond length of 1.270 (3) Å conforms to the value for a double bond. The bond length of 1.343 (3) Å between atoms C8 and N2 is intermediate between a N—N single bond and a N═N double bond, because of conjugation effects in the molecule. There is a strong intramolecular hydrogen bond between the hydroxyl hydrogen and N1.

In the crystal structure, molecules are linked through intermolecular N—H···O hydrogen bonds (Table 1), forming chains running along the a direction (Fig. 2).

Related literature top

For related structures, see Yang (2006a,b,c,d,e, 2007a,b,c); Yang & Guo (2006). For related literature, see: Allen et al. (1987); Bernardo et al. (1996); Musie et al. (2001); Paul et al. (2002).

Experimental top

5-Chlorosalicylaldehyde (0.1 mmol, 15.6 mg) and 4-chlorobenzohydrazide (0.1 mmol, 17.0 mg) were dissolved in MeOH (10 ml). The mixture was stirred at room temperature to give a clear colorless solution. Crystals of the title compound were formed by gradual evaporation of the solvent over a period of 13 days at room temperature.

Refinement top

Atom H2 was located in a difference Fourier map and refined isotropically, with N—H distance restrained to 0.90 (1) Å. Other H atoms were placed in idealized positions and constrained to ride on their parent atoms, with O—H distance of 0.82 Å, C—H distances of 0.93 Å, and with Uiso(H) = 1.2Ueq(C) and 1.5Ueq(O).

Computing details top

Data collection: SMART (Bruker, 2007); cell refinement: SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); 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 structure of the title compound showing the atom-numbering scheme. Displacement ellipsoids are drawn at the 30% probability level.
[Figure 2] Fig. 2. Molecular packing as viewed along the c axis. Hydrogen bonds are shown as dashed lines.
4-Chloro-N'-(5-chloro-2-hydroxybenzylidene)benzohydrazide top
Crystal data top
C14H10Cl2N2O2F000 = 632
Mr = 309.14Dx = 1.495 Mg m−3
Monoclinic, P21/nMo Kα radiation
λ = 0.71073 Å
Hall symbol: -P 2ynCell parameters from 2553 reflections
a = 5.921 (2) Åθ = 2.5–24.3º
b = 31.245 (3) ŵ = 0.47 mm−1
c = 7.428 (3) ÅT = 298 (2) K
β = 92.182 (6)ºBlock, colourless
V = 1373.2 (7) Å30.20 × 0.18 × 0.17 mm
Z = 4
Data collection top
Bruker SMART CCD
diffractometer		2239 independent reflections
Radiation source: fine-focus sealed tube1790 reflections with I > 2σ(I)
Monochromator: graphiteRint = 0.022
T = 298(2) Kθmax = 24.4º
ω scansθmin = 2.6º
Absorption correction: multi-scan
(SADABS; Sheldrick, 1996)		h = −6→6
Tmin = 0.911, Tmax = 0.924k = −36→35
6465 measured reflectionsl = −8→6
Refinement top
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.038H atoms treated by a mixture of
independent and constrained refinement
wR(F2) = 0.097  w = 1/[σ2(Fo2) + (0.0381P)2 + 0.5294P]
where P = (Fo2 + 2Fc2)/3
S = 1.03(Δ/σ)max < 0.001
2239 reflectionsΔρmax = 0.25 e Å−3
185 parametersΔρmin = −0.25 e Å−3
1 restraintExtinction correction: none
Primary atom site location: structure-invariant direct methods
Crystal data top
C14H10Cl2N2O2V = 1373.2 (7) Å3
Mr = 309.14Z = 4
Monoclinic, P21/nMo Kα
a = 5.921 (2) ŵ = 0.47 mm−1
b = 31.245 (3) ÅT = 298 (2) K
c = 7.428 (3) Å0.20 × 0.18 × 0.17 mm
β = 92.182 (6)º
Data collection top
Bruker SMART CCD
diffractometer		2239 independent reflections
Absorption correction: multi-scan
(SADABS; Sheldrick, 1996)		1790 reflections with I > 2σ(I)
Tmin = 0.911, Tmax = 0.924Rint = 0.022
6465 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0381 restraint
wR(F2) = 0.097H atoms treated by a mixture of
independent and constrained refinement
S = 1.03Δρmax = 0.25 e Å−3
2239 reflectionsΔρmin = −0.25 e Å−3
185 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
Cl10.76783 (16)0.49243 (2)0.80632 (14)0.1068 (3)
Cl21.33065 (12)0.06887 (2)0.76621 (10)0.0742 (2)
N10.6688 (3)0.29434 (6)0.6801 (2)0.0488 (4)
N20.8017 (3)0.25847 (6)0.7096 (2)0.0523 (5)
O10.2928 (3)0.33583 (5)0.5861 (2)0.0657 (5)
H10.37210.31460.60450.099*
O20.6020 (3)0.22073 (5)0.5012 (2)0.0640 (5)
C10.6271 (3)0.36918 (6)0.7166 (3)0.0445 (5)
C20.4080 (4)0.37128 (7)0.6396 (3)0.0504 (5)
C30.3035 (4)0.41076 (9)0.6172 (3)0.0665 (7)
H30.15760.41210.56660.080*
C40.4116 (5)0.44766 (9)0.6685 (4)0.0729 (7)
H40.34010.47400.65220.087*
C50.6271 (4)0.44569 (7)0.7444 (3)0.0630 (6)
C60.7329 (4)0.40713 (7)0.7690 (3)0.0528 (5)
H60.87790.40630.82170.063*
C70.7485 (4)0.32942 (7)0.7410 (3)0.0468 (5)
H70.88820.32950.80270.056*
C80.7583 (3)0.22285 (6)0.6132 (3)0.0449 (5)
C90.9091 (3)0.18574 (6)0.6525 (2)0.0424 (5)
C100.8262 (4)0.14516 (7)0.6112 (3)0.0481 (5)
H100.68230.14230.55780.058*
C110.9534 (4)0.10922 (7)0.6479 (3)0.0521 (5)
H110.89580.08210.62180.062*
C121.1670 (4)0.11401 (7)0.7236 (3)0.0489 (5)
C131.2546 (4)0.15368 (7)0.7646 (3)0.0509 (5)
H131.39930.15630.81660.061*
C141.1252 (3)0.18949 (7)0.7278 (3)0.0479 (5)
H141.18400.21650.75380.058*
H20.913 (3)0.2592 (8)0.795 (3)0.080*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Cl10.1184 (7)0.0481 (4)0.1535 (8)−0.0066 (4)−0.0009 (6)0.0049 (4)
Cl20.0782 (5)0.0561 (4)0.0877 (5)0.0189 (3)−0.0070 (4)−0.0040 (3)
N10.0507 (10)0.0480 (10)0.0466 (10)0.0072 (8)−0.0104 (8)−0.0010 (8)
N20.0576 (12)0.0464 (10)0.0512 (11)0.0081 (9)−0.0192 (9)−0.0064 (8)
O10.0508 (9)0.0777 (11)0.0674 (11)0.0052 (8)−0.0123 (8)−0.0069 (9)
O20.0722 (11)0.0528 (9)0.0641 (10)−0.0025 (8)−0.0340 (9)−0.0001 (7)
C10.0462 (12)0.0511 (12)0.0361 (11)0.0060 (10)0.0015 (9)0.0039 (9)
C20.0474 (13)0.0632 (14)0.0404 (12)0.0063 (11)0.0003 (10)0.0007 (10)
C30.0538 (14)0.0839 (18)0.0615 (15)0.0244 (14)−0.0019 (12)0.0091 (13)
C40.0797 (19)0.0607 (16)0.0786 (18)0.0257 (14)0.0077 (15)0.0111 (13)
C50.0711 (17)0.0483 (13)0.0699 (16)0.0049 (12)0.0069 (13)0.0087 (11)
C60.0535 (13)0.0513 (13)0.0536 (13)0.0026 (11)0.0015 (10)0.0051 (10)
C70.0451 (11)0.0509 (13)0.0439 (12)0.0045 (10)−0.0065 (9)0.0019 (9)
C80.0491 (12)0.0444 (11)0.0406 (11)−0.0043 (10)−0.0066 (10)0.0022 (9)
C90.0468 (12)0.0454 (11)0.0346 (10)−0.0013 (9)−0.0019 (9)−0.0023 (8)
C100.0471 (12)0.0512 (12)0.0455 (12)−0.0030 (10)−0.0042 (9)−0.0049 (10)
C110.0595 (14)0.0447 (12)0.0520 (13)−0.0051 (11)0.0036 (11)−0.0055 (10)
C120.0548 (13)0.0477 (12)0.0446 (12)0.0083 (10)0.0063 (10)−0.0021 (9)
C130.0450 (12)0.0576 (14)0.0499 (13)0.0044 (10)−0.0023 (10)−0.0070 (10)
C140.0485 (12)0.0460 (12)0.0491 (12)−0.0026 (10)−0.0014 (10)−0.0066 (9)
Geometric parameters (Å, °) top
Cl1—C51.735 (3)C4—H40.9300
Cl2—C121.734 (2)C5—C61.367 (3)
N1—C71.270 (3)C6—H60.9300
N1—N21.382 (2)C7—H70.9300
N2—C81.343 (3)C8—C91.486 (3)
N2—H20.898 (10)C9—C141.382 (3)
O1—C21.352 (3)C9—C101.390 (3)
O1—H10.8200C10—C111.374 (3)
O2—C81.222 (2)C10—H100.9300
C1—C61.390 (3)C11—C121.373 (3)
C1—C21.399 (3)C11—H110.9300
C1—C71.443 (3)C12—C131.373 (3)
C2—C31.387 (3)C13—C141.377 (3)
C3—C41.366 (4)C13—H130.9300
C3—H30.9300C14—H140.9300
C4—C51.376 (4)
C7—N1—N2116.23 (17)N1—C7—H7119.3
C8—N2—N1119.42 (17)C1—C7—H7119.3
C8—N2—H2121.1 (16)O2—C8—N2122.17 (19)
N1—N2—H2119.4 (16)O2—C8—C9121.69 (18)
C2—O1—H1109.5N2—C8—C9116.13 (17)
C6—C1—C2118.39 (19)C14—C9—C10118.74 (19)
C6—C1—C7118.83 (19)C14—C9—C8123.63 (18)
C2—C1—C7122.77 (19)C10—C9—C8117.63 (18)
O1—C2—C3118.4 (2)C11—C10—C9121.0 (2)
O1—C2—C1122.06 (19)C11—C10—H10119.5
C3—C2—C1119.5 (2)C9—C10—H10119.5
C4—C3—C2121.0 (2)C12—C11—C10118.8 (2)
C4—C3—H3119.5C12—C11—H11120.6
C2—C3—H3119.5C10—C11—H11120.6
C3—C4—C5119.6 (2)C11—C12—C13121.6 (2)
C3—C4—H4120.2C11—C12—Cl2119.07 (17)
C5—C4—H4120.2C13—C12—Cl2119.34 (18)
C6—C5—C4120.5 (2)C12—C13—C14119.1 (2)
C6—C5—Cl1119.6 (2)C12—C13—H13120.4
C4—C5—Cl1119.96 (19)C14—C13—H13120.4
C5—C6—C1121.0 (2)C13—C14—C9120.7 (2)
C5—C6—H6119.5C13—C14—H14119.6
C1—C6—H6119.5C9—C14—H14119.6
N1—C7—C1121.45 (19)
Hydrogen-bond geometry (Å, °) top
D—H···AD—HH···AD···AD—H···A
N2—H2···O2i0.898 (10)1.965 (13)2.826 (2)160 (2)
O1—H1···N10.821.932.647 (2)145
Symmetry codes: (i) x+1/2, −y+1/2, z+1/2.
Table 1
Hydrogen-bond geometry (Å, °) top
D—H···AD—HH···AD···AD—H···A
N2—H2···O2i0.898 (10)1.965 (13)2.826 (2)160 (2)
O1—H1···N10.821.932.647 (2)145
Symmetry codes: (i) x+1/2, −y+1/2, z+1/2.
Acknowledgements top

The author acknowledges Key Laboratory Construction Support from the Education Office of Shanxi Province (Project No. 05JS43).

references
References top

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.

Bernardo, K., Leppard, S., Robert, A., Commenges, G., Dahan, F. & Meunier, B. (1996). Inorg. Chem. 35, 387–396.

Bruker (2007). SAINT and SMART. Bruker AXS Inc., Madison, Wisconsin, USA.

Musie, G. T., Wei, M., Subramaniam, B. & Busch, D. H. (2001). Inorg. Chem. 40, 3336–3341.

Paul, S., Barik, A. K., Peng, S. M. & Kar, S. K. (2002). Inorg. Chem. 41, 5803–5809.

Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.

Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122.

Yang, D.-S. (2006a). Acta Cryst. E62, o1395–o1396.

Yang, D.-S. (2006b). Acta Cryst. E62, o1591–o1592.

Yang, D.-S. (2006c). Acta Cryst. E62, o2365–o2366.

Yang, D.-S. (2006d). Acta Cryst. E62, o3755–o3756.

Yang, D.-S. (2006e). Acta Cryst. E62, o3792–o3793.

Yang, D.-S. (2007a). J. Chem. Crystallogr. 37, 343–348.

Yang, D.-S. (2007b). Acta Cryst. E63, o3738.

Yang, D.-S. (2007c). Acta Cryst. E63, o3739.

Yang, D.-S. & Guo, J.-B. (2006). Acta Cryst. E62, o4414–o4415.