organic compounds
(E)-N′-(3,5-Dichloro-2-hydroxybenzylidene)-2-methoxybenzohydrazide
aZibo Vocational Institute, Zibo 255314, People's Republic of China
*Correspondence e-mail: lixiaoyan_zb@126.com
In the title compound, C15H12Cl2N2O3, the dihedral angle between the two substituted aromatic rings is 5.4 (4)°. Intramolecular O—H⋯N and N—H⋯O hydrogen bonds affect the planarity of the molcular conformation, with a mean deviation from the plane defined by the non-H atoms of 0.062 (2) Å. The molecule exists in a trans configuration with respect to the methylidene unit. In the crystal, molecules are linked by N—H⋯O interactions.
Related literature
For the crystal structures of hydrazone compounds, see: Li (2011); Hashemian et al. (2011); Lei (2011); Shalash et al. (2010).
Experimental
Crystal data
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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: SHELXL97.
Supporting information
10.1107/S160053681102366X/om2438sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S160053681102366X/om2438Isup2.hkl
Supporting information file. DOI: 10.1107/S160053681102366X/om2438Isup3.cml
A mixture of 2-methoxybenzhydrazide (0.166 g, 1 mmol) and 3,5-dichlorosalicylaldehyde (0.190 g, 1 mmol) in 30 ml of ethanol containing a few drops of acetic acid was refluxed for about 1 h. On cooling to room temperature, a solid precipitate was formed. The solid was filtered and then recrystallized from methanol. Colorless crystals suitable for X-ray diffraction were obtained by slow evaporation of the solution.
The and N-bound hydrogen atom was located from a difference Fourier map and refined isotropically. The rest of hydrogen atoms were positioned geometrically [C—H = 0.93 & 0.96 Å; O—H = 0.82 Å] and refined using a riding model [Uiso(H) = 1.2Ueq(C) and 1.5 Ueq(C15 and O1)]. A rotating-group model was applied for the methyl group.
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: SHELXL97 (Sheldrick, 2008).Fig. 1. The molecular structure with displacement parameters drawn at the 30% probability level. Hydrogen bonds are indicated by dashed lines. |
C15H12Cl2N2O3 | F(000) = 696 |
Mr = 339.17 | Dx = 1.508 Mg m−3 |
Monoclinic, Cc | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: C -2yc | Cell parameters from 816 reflections |
a = 10.845 (7) Å | θ = 2.4–24.3° |
b = 12.771 (8) Å | µ = 0.45 mm−1 |
c = 10.856 (7) Å | T = 298 K |
β = 96.683 (7)° | Block, colorless |
V = 1493.4 (16) Å3 | 0.18 × 0.18 × 0.17 mm |
Z = 4 |
Bruker SMART CCD area-detector diffractometer | 2978 independent reflections |
Radiation source: fine-focus sealed tube | 2011 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.050 |
ω scans | θmax = 27.5°, θmin = 2.5° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −14→13 |
Tmin = 0.924, Tmax = 0.928 | k = −16→12 |
4586 measured reflections | l = −13→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)] = 0.058 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.133 | w = 1/[σ2(Fo2) + (0.0425P)2] where P = (Fo2 + 2Fc2)/3 |
S = 1.02 | (Δ/σ)max < 0.001 |
2978 reflections | Δρmax = 0.28 e Å−3 |
204 parameters | Δρmin = −0.28 e Å−3 |
4 restraints | Absolute structure: Flack (1983), 1272 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.10 (10) |
C15H12Cl2N2O3 | V = 1493.4 (16) Å3 |
Mr = 339.17 | Z = 4 |
Monoclinic, Cc | Mo Kα radiation |
a = 10.845 (7) Å | µ = 0.45 mm−1 |
b = 12.771 (8) Å | T = 298 K |
c = 10.856 (7) Å | 0.18 × 0.18 × 0.17 mm |
β = 96.683 (7)° |
Bruker SMART CCD area-detector diffractometer | 2978 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2011 reflections with I > 2σ(I) |
Tmin = 0.924, Tmax = 0.928 | Rint = 0.050 |
4586 measured reflections |
R[F2 > 2σ(F2)] = 0.058 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.133 | Δρmax = 0.28 e Å−3 |
S = 1.02 | Δρmin = −0.28 e Å−3 |
2978 reflections | Absolute structure: Flack (1983), 1272 Friedel pairs |
204 parameters | Absolute structure parameter: 0.10 (10) |
4 restraints |
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 | ||
Cl1 | 0.40120 (15) | 0.77322 (10) | 0.22803 (13) | 0.0652 (4) | |
Cl2 | 0.47525 (14) | 0.96477 (10) | 0.67126 (14) | 0.0658 (4) | |
N1 | 0.6075 (4) | 0.4977 (3) | 0.5532 (3) | 0.0389 (9) | |
N2 | 0.6498 (4) | 0.4042 (3) | 0.6052 (3) | 0.0436 (10) | |
O1 | 0.5144 (3) | 0.5940 (2) | 0.3592 (3) | 0.0461 (8) | |
H1 | 0.5450 | 0.5443 | 0.3998 | 0.069* | |
O2 | 0.6238 (4) | 0.3303 (2) | 0.4167 (3) | 0.0581 (10) | |
O3 | 0.7634 (3) | 0.2894 (3) | 0.7842 (3) | 0.0535 (10) | |
C1 | 0.5091 (4) | 0.6771 (3) | 0.4333 (4) | 0.0353 (10) | |
C2 | 0.4584 (4) | 0.7706 (4) | 0.3839 (4) | 0.0436 (12) | |
C3 | 0.4487 (4) | 0.8590 (4) | 0.4551 (5) | 0.0464 (12) | |
H3 | 0.4142 | 0.9202 | 0.4198 | 0.056* | |
C4 | 0.4913 (5) | 0.8547 (4) | 0.5798 (4) | 0.0450 (12) | |
C5 | 0.5424 (4) | 0.7637 (4) | 0.6342 (4) | 0.0418 (12) | |
H5 | 0.5708 | 0.7621 | 0.7184 | 0.050* | |
C6 | 0.5504 (4) | 0.6748 (3) | 0.5611 (4) | 0.0360 (10) | |
C7 | 0.6003 (4) | 0.5782 (4) | 0.6203 (4) | 0.0421 (11) | |
H7 | 0.6261 | 0.5760 | 0.7050 | 0.051* | |
C8 | 0.6559 (4) | 0.3220 (3) | 0.5280 (4) | 0.0376 (11) | |
C9 | 0.7044 (4) | 0.2206 (3) | 0.5831 (4) | 0.0374 (11) | |
C10 | 0.6993 (5) | 0.1355 (4) | 0.5042 (5) | 0.0476 (12) | |
H10 | 0.6651 | 0.1447 | 0.4223 | 0.057* | |
C11 | 0.7425 (5) | 0.0378 (4) | 0.5408 (5) | 0.0595 (15) | |
H11 | 0.7356 | −0.0183 | 0.4859 | 0.071* | |
C12 | 0.7965 (5) | 0.0254 (4) | 0.6618 (6) | 0.0646 (16) | |
H12 | 0.8266 | −0.0400 | 0.6882 | 0.077* | |
C13 | 0.8063 (5) | 0.1080 (4) | 0.7436 (5) | 0.0548 (14) | |
H13 | 0.8445 | 0.0990 | 0.8242 | 0.066* | |
C14 | 0.7587 (4) | 0.2053 (4) | 0.7049 (4) | 0.0427 (12) | |
C15 | 0.8242 (5) | 0.2795 (5) | 0.9067 (5) | 0.0705 (18) | |
H15A | 0.7862 | 0.2242 | 0.9488 | 0.106* | |
H15B | 0.8173 | 0.3441 | 0.9505 | 0.106* | |
H15C | 0.9103 | 0.2634 | 0.9035 | 0.106* | |
H2 | 0.667 (5) | 0.404 (5) | 0.6884 (9) | 0.085* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0949 (10) | 0.0518 (8) | 0.0441 (7) | 0.0028 (8) | −0.0130 (6) | 0.0124 (6) |
Cl2 | 0.0854 (10) | 0.0383 (6) | 0.0762 (10) | −0.0036 (7) | 0.0194 (7) | −0.0199 (7) |
N1 | 0.053 (2) | 0.033 (2) | 0.0301 (19) | 0.0056 (18) | −0.0001 (17) | 0.0040 (16) |
N2 | 0.059 (3) | 0.035 (2) | 0.034 (2) | 0.0087 (19) | −0.005 (2) | 0.0070 (18) |
O1 | 0.074 (2) | 0.0319 (18) | 0.0310 (17) | 0.0013 (16) | −0.0010 (16) | −0.0017 (14) |
O2 | 0.086 (3) | 0.048 (2) | 0.0353 (19) | 0.0129 (19) | −0.0132 (18) | 0.0007 (17) |
O3 | 0.066 (2) | 0.054 (2) | 0.038 (2) | 0.0143 (18) | −0.0076 (17) | 0.0048 (17) |
C1 | 0.041 (3) | 0.033 (2) | 0.032 (2) | −0.0051 (19) | 0.005 (2) | 0.0042 (19) |
C2 | 0.055 (3) | 0.038 (3) | 0.037 (3) | −0.006 (2) | 0.001 (2) | 0.001 (2) |
C3 | 0.052 (3) | 0.030 (3) | 0.057 (3) | −0.003 (2) | 0.005 (2) | 0.004 (2) |
C4 | 0.054 (3) | 0.032 (3) | 0.051 (3) | −0.008 (2) | 0.014 (3) | −0.007 (2) |
C5 | 0.049 (3) | 0.039 (3) | 0.037 (3) | −0.002 (2) | 0.003 (2) | −0.004 (2) |
C6 | 0.042 (3) | 0.032 (2) | 0.034 (3) | 0.000 (2) | 0.006 (2) | 0.0013 (19) |
C7 | 0.051 (3) | 0.043 (3) | 0.032 (2) | −0.003 (2) | 0.002 (2) | 0.001 (2) |
C8 | 0.040 (3) | 0.035 (2) | 0.037 (3) | 0.002 (2) | 0.000 (2) | 0.003 (2) |
C9 | 0.041 (3) | 0.030 (3) | 0.041 (3) | 0.0035 (19) | 0.007 (2) | 0.0096 (19) |
C10 | 0.053 (3) | 0.040 (3) | 0.051 (3) | −0.003 (2) | 0.011 (2) | −0.001 (2) |
C11 | 0.072 (4) | 0.035 (3) | 0.072 (4) | 0.001 (2) | 0.011 (3) | −0.003 (3) |
C12 | 0.063 (4) | 0.038 (3) | 0.094 (5) | 0.017 (3) | 0.015 (3) | 0.022 (3) |
C13 | 0.056 (3) | 0.055 (3) | 0.054 (3) | 0.010 (3) | 0.008 (3) | 0.024 (3) |
C14 | 0.043 (3) | 0.042 (3) | 0.043 (3) | 0.007 (2) | 0.007 (2) | 0.011 (2) |
C15 | 0.070 (4) | 0.096 (5) | 0.042 (3) | 0.020 (3) | −0.010 (3) | 0.007 (3) |
Cl1—C2 | 1.734 (5) | C5—H5 | 0.9300 |
Cl2—C4 | 1.741 (5) | C6—C7 | 1.465 (6) |
N1—C7 | 1.268 (5) | C7—H7 | 0.9300 |
N1—N2 | 1.377 (5) | C8—C9 | 1.496 (6) |
N2—C8 | 1.350 (5) | C9—C10 | 1.381 (6) |
N2—H2 | 0.900 (7) | C9—C14 | 1.397 (6) |
O1—C1 | 1.337 (5) | C10—C11 | 1.375 (7) |
O1—H1 | 0.8200 | C10—H10 | 0.9300 |
O2—C8 | 1.223 (5) | C11—C12 | 1.383 (8) |
O3—C14 | 1.373 (6) | C11—H11 | 0.9300 |
O3—C15 | 1.420 (6) | C12—C13 | 1.376 (8) |
C1—C2 | 1.396 (6) | C12—H12 | 0.9300 |
C1—C6 | 1.407 (5) | C13—C14 | 1.392 (6) |
C2—C3 | 1.379 (7) | C13—H13 | 0.9300 |
C3—C4 | 1.380 (6) | C15—H15A | 0.9600 |
C3—H3 | 0.9300 | C15—H15B | 0.9600 |
C4—C5 | 1.390 (6) | C15—H15C | 0.9600 |
C5—C6 | 1.394 (6) | ||
C7—N1—N2 | 120.5 (4) | O2—C8—N2 | 121.2 (4) |
C8—N2—N1 | 117.2 (3) | O2—C8—C9 | 121.1 (4) |
C8—N2—H2 | 127 (4) | N2—C8—C9 | 117.7 (4) |
N1—N2—H2 | 116 (4) | C10—C9—C14 | 117.3 (4) |
C1—O1—H1 | 109.5 | C10—C9—C8 | 116.5 (4) |
C14—O3—C15 | 119.8 (4) | C14—C9—C8 | 126.1 (4) |
O1—C1—C2 | 119.4 (4) | C11—C10—C9 | 123.1 (5) |
O1—C1—C6 | 123.0 (4) | C11—C10—H10 | 118.4 |
C2—C1—C6 | 117.6 (4) | C9—C10—H10 | 118.4 |
C3—C2—C1 | 122.5 (4) | C10—C11—C12 | 118.1 (5) |
C3—C2—Cl1 | 119.3 (4) | C10—C11—H11 | 121.0 |
C1—C2—Cl1 | 118.2 (4) | C12—C11—H11 | 121.0 |
C2—C3—C4 | 118.6 (4) | C13—C12—C11 | 121.2 (5) |
C2—C3—H3 | 120.7 | C13—C12—H12 | 119.4 |
C4—C3—H3 | 120.7 | C11—C12—H12 | 119.4 |
C3—C4—C5 | 121.4 (4) | C12—C13—C14 | 119.4 (5) |
C3—C4—Cl2 | 118.9 (4) | C12—C13—H13 | 120.3 |
C5—C4—Cl2 | 119.6 (4) | C14—C13—H13 | 120.3 |
C4—C5—C6 | 119.2 (4) | O3—C14—C13 | 121.5 (4) |
C4—C5—H5 | 120.4 | O3—C14—C9 | 117.7 (4) |
C6—C5—H5 | 120.4 | C13—C14—C9 | 120.8 (5) |
C5—C6—C1 | 120.7 (4) | O3—C15—H15A | 109.5 |
C5—C6—C7 | 118.7 (4) | O3—C15—H15B | 109.5 |
C1—C6—C7 | 120.6 (4) | H15A—C15—H15B | 109.5 |
N1—C7—C6 | 118.3 (4) | O3—C15—H15C | 109.5 |
N1—C7—H7 | 120.8 | H15A—C15—H15C | 109.5 |
C6—C7—H7 | 120.8 | H15B—C15—H15C | 109.5 |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···N1 | 0.82 | 1.82 | 2.543 (4) | 146 |
N2—H2···O3 | 0.90 (1) | 2.02 (5) | 2.624 (4) | 123 (5) |
N2—H2···O1i | 0.90 (1) | 2.63 (4) | 3.271 (5) | 129 (5) |
Symmetry code: (i) x, −y+1, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C15H12Cl2N2O3 |
Mr | 339.17 |
Crystal system, space group | Monoclinic, Cc |
Temperature (K) | 298 |
a, b, c (Å) | 10.845 (7), 12.771 (8), 10.856 (7) |
β (°) | 96.683 (7) |
V (Å3) | 1493.4 (16) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.45 |
Crystal size (mm) | 0.18 × 0.18 × 0.17 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.924, 0.928 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 4586, 2978, 2011 |
Rint | 0.050 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.058, 0.133, 1.02 |
No. of reflections | 2978 |
No. of parameters | 204 |
No. of restraints | 4 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.28, −0.28 |
Absolute structure | Flack (1983), 1272 Friedel pairs |
Absolute structure parameter | 0.10 (10) |
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···N1 | 0.82 | 1.82 | 2.543 (4) | 146 |
N2—H2···O3 | 0.900 (7) | 2.02 (5) | 2.624 (4) | 123 (5) |
N2—H2···O1i | 0.900 (7) | 2.63 (4) | 3.271 (5) | 129 (5) |
Symmetry code: (i) x, −y+1, z+1/2. |
Acknowledgements
The author acknowledges the Zibo Vocational Institute for supporting the work.
References
Bruker (1998). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
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In the last few years, hydrazones have been attracted much attention for their crystal structures (Li, 2011; Hashemian et al., 2011; Lei, 2011; Shalash et al., 2010).
In the crystal structure of the title hydrazone molecule, as shown in Fig. 1, the dihedral angle between the two substituted aromatic rings is 5.4 (4)°. The intramolecular O—H···N and N—H···O hydrogen bonds (Table 1) affect the planarity of the conformation of the molecule. The molecule exists in a trans configuration with respect to the methylidene unit.