organic compounds
N′-(Diphenylmethylene)-2-hydroxybenzohydrazide
aDepartment of Materials and Chemical Engineering, Taishan University, 271021 Taian, Shandong, People's Republic of China, and bNo. 1 Middle School of Qufu, 273100, Shandong, People's Republic of China
*Correspondence e-mail: klsz79@163.com
In the title compound, C20H16N2O2, intramolecular N—H⋯O and intermolecular O—H⋯O hydrogen bonds are found. The intermolecular hydrogen bonds link the molecules into an infinite chain along the c axis. The dihedral angles between the aromatic rings are 16.9 (3), 80.8 (3) and 64.6 (3)°
Related literature
For the multiple-coordination environment of 2-hydroxybenzohydrazide and its derivatives, see: Chang (2008); Huo et al. (2004).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Siemens, 1996); cell SAINT (Siemens, 1996); 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/S1600536809006916/rk2128sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809006916/rk2128Isup2.hkl
Benzophenone and 2–hydroxybenzohydrazide were added to the solvent of ethanol and the mixture was stirred for 4 h at 323 K. After cooling down to the room temperature, the solution was filtered. The solvent was removed from the filtrate under vacuum and the solid residue was recrystallized from ether; colourless crystals suitable for X–ray diffraction study were obtained. Yield, 79%. m.p. 463 K. Analysis, calculated for C20H16N2O2: C 79.19, H 5.65, N 4.62; found: C 79.36, H 5.43, N 4.35%. The elemental analyses were performed with a Perkine Elemer PE2400II instrument.
The all H atoms were placed in idealized positions and constrained to ride on their parent atoms, with distances: N—H = 0.86 Å and O—H = 0.82 Å, C—H = 0.93 Å. The Uiso(H) values were set at 1.2Ueq(parent C, N) and 1.5Ueq(O).
Data collection: SMART (Siemens, 1996); cell
SAINT (Siemens, 1996); data reduction: SAINT (Siemens, 1996); 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).C20H16N2O2 | Dx = 1.263 Mg m−3 |
Mr = 316.35 | Mo Kα radiation, λ = 0.71073 Å |
Tetragonal, I41/a | Cell parameters from 3007 reflections |
Hall symbol: -I 4ad | θ = 2.4–20.0° |
a = 16.5157 (9) Å | µ = 0.08 mm−1 |
c = 24.401 (3) Å | T = 273 K |
V = 6655.8 (10) Å3 | Block, colourless |
Z = 16 | 0.31 × 0.25 × 0.19 mm |
F(000) = 2672 |
Bruker SMART CCD area-detector diffractometer | 2929 independent reflections |
Radiation source: Fine–focus sealed tube | 1610 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.096 |
ϕ and ω scans | θmax = 25.0°, θmin = 1.5° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −19→17 |
Tmin = 0.972, Tmax = 0.987 | k = −19→19 |
17393 measured reflections | l = −24→28 |
Refinement on F2 | Primary atom site location: Direct |
Least-squares matrix: Full | Secondary atom site location: Difmap |
R[F2 > 2σ(F2)] = 0.072 | Hydrogen site location: Geom |
wR(F2) = 0.255 | H-atom parameters constrained |
S = 1.01 | w = 1/[σ2(Fo2) + (0.158P)2 + 0.5238P] where P = (Fo2 + 2Fc2)/3 |
2929 reflections | (Δ/σ)max = 0.001 |
217 parameters | Δρmax = 0.53 e Å−3 |
7 restraints | Δρmin = −0.47 e Å−3 |
C20H16N2O2 | Z = 16 |
Mr = 316.35 | Mo Kα radiation |
Tetragonal, I41/a | µ = 0.08 mm−1 |
a = 16.5157 (9) Å | T = 273 K |
c = 24.401 (3) Å | 0.31 × 0.25 × 0.19 mm |
V = 6655.8 (10) Å3 |
Bruker SMART CCD area-detector diffractometer | 2929 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1610 reflections with I > 2σ(I) |
Tmin = 0.972, Tmax = 0.987 | Rint = 0.096 |
17393 measured reflections |
R[F2 > 2σ(F2)] = 0.072 | 7 restraints |
wR(F2) = 0.255 | H-atom parameters constrained |
S = 1.01 | Δρmax = 0.53 e Å−3 |
2929 reflections | Δρmin = −0.47 e Å−3 |
217 parameters |
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'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 | ||
N1 | 0.19770 (16) | 0.48883 (16) | 0.91131 (10) | 0.0673 (8) | |
N2 | 0.20636 (16) | 0.53442 (16) | 0.95782 (10) | 0.0660 (8) | |
H2B | 0.1828 | 0.5197 | 0.9876 | 0.079* | |
O1 | 0.28234 (15) | 0.62777 (14) | 0.91455 (9) | 0.0834 (8) | |
O2 | 0.18133 (14) | 0.55740 (15) | 1.06333 (8) | 0.0770 (7) | |
H2A | 0.1681 | 0.5493 | 1.0953 | 0.115* | |
C1 | 0.1847 (2) | 0.3933 (2) | 0.81748 (16) | 0.0892 (12) | |
H1 | 0.2122 | 0.4422 | 0.8148 | 0.107* | |
C2 | 0.1798 (3) | 0.3438 (3) | 0.77280 (18) | 0.1029 (13) | |
H2 | 0.2036 | 0.3596 | 0.7399 | 0.123* | |
C3 | 0.1404 (3) | 0.2713 (3) | 0.7760 (2) | 0.1021 (14) | |
H3 | 0.1382 | 0.2373 | 0.7456 | 0.123* | |
C4 | 0.1046 (3) | 0.2494 (3) | 0.8232 (2) | 0.1024 (14) | |
H4 | 0.0765 | 0.2007 | 0.8251 | 0.123* | |
C5 | 0.1094 (2) | 0.2984 (2) | 0.86910 (18) | 0.0894 (12) | |
H5 | 0.0855 | 0.2819 | 0.9018 | 0.107* | |
C6 | 0.1494 (2) | 0.3717 (2) | 0.86662 (14) | 0.0696 (9) | |
C7 | 0.15649 (19) | 0.4228 (2) | 0.91578 (13) | 0.0655 (9) | |
C8 | 0.1194 (2) | 0.3957 (2) | 0.96790 (14) | 0.0708 (9) | |
C9 | 0.0389 (3) | 0.4050 (3) | 0.9779 (2) | 0.1276 (19) | |
H9 | 0.0055 | 0.4280 | 0.9515 | 0.153* | |
C10 | 0.0067 (4) | 0.3801 (3) | 1.0278 (3) | 0.1355 (17) | |
H10 | −0.0488 | 0.3835 | 1.0341 | 0.163* | |
C11 | 0.0576 (4) | 0.3502 (4) | 1.0679 (2) | 0.150 (2) | |
H11 | 0.0368 | 0.3385 | 1.1024 | 0.180* | |
C12 | 0.1362 (4) | 0.3380 (3) | 1.0581 (2) | 0.1236 (18) | |
H12 | 0.1693 | 0.3145 | 1.0845 | 0.148* | |
C13 | 0.1676 (3) | 0.3610 (3) | 1.00770 (17) | 0.0944 (13) | |
H13 | 0.2223 | 0.3528 | 1.0006 | 0.113* | |
C14 | 0.2516 (2) | 0.6023 (2) | 0.95709 (12) | 0.0625 (8) | |
C15 | 0.26762 (18) | 0.64251 (19) | 1.01038 (12) | 0.0585 (8) | |
C16 | 0.2366 (2) | 0.6184 (2) | 1.06129 (12) | 0.0648 (9) | |
C17 | 0.2630 (3) | 0.6562 (3) | 1.10856 (14) | 0.0864 (11) | |
H17 | 0.2436 | 0.6389 | 1.1423 | 0.104* | |
C18 | 0.3167 (3) | 0.7181 (3) | 1.10648 (16) | 0.0967 (13) | |
H18 | 0.3334 | 0.7430 | 1.1388 | 0.116* | |
C19 | 0.3466 (2) | 0.7445 (3) | 1.05717 (16) | 0.0904 (12) | |
H19 | 0.3830 | 0.7874 | 1.0557 | 0.108* | |
C20 | 0.3218 (2) | 0.7066 (2) | 1.01018 (14) | 0.0752 (10) | |
H20 | 0.3422 | 0.7246 | 0.9768 | 0.090* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0836 (19) | 0.0705 (17) | 0.0477 (15) | −0.0095 (15) | 0.0066 (13) | −0.0014 (12) |
N2 | 0.0788 (18) | 0.0773 (18) | 0.0418 (14) | −0.0052 (14) | 0.0106 (12) | 0.0011 (12) |
O1 | 0.1105 (19) | 0.0922 (17) | 0.0476 (13) | −0.0258 (14) | 0.0190 (12) | −0.0067 (12) |
O2 | 0.0928 (17) | 0.0963 (17) | 0.0417 (12) | −0.0020 (14) | 0.0095 (11) | 0.0066 (11) |
C1 | 0.107 (3) | 0.090 (3) | 0.070 (3) | −0.021 (2) | 0.003 (2) | −0.007 (2) |
C2 | 0.128 (4) | 0.108 (3) | 0.073 (3) | −0.017 (3) | 0.003 (2) | −0.024 (2) |
C3 | 0.112 (3) | 0.099 (3) | 0.096 (3) | −0.005 (3) | −0.015 (3) | −0.027 (3) |
C4 | 0.116 (3) | 0.080 (3) | 0.111 (4) | −0.016 (2) | −0.005 (3) | −0.015 (3) |
C5 | 0.097 (3) | 0.080 (3) | 0.092 (3) | −0.011 (2) | 0.003 (2) | −0.001 (2) |
C6 | 0.070 (2) | 0.069 (2) | 0.070 (2) | −0.0040 (17) | −0.0008 (17) | −0.0007 (17) |
C7 | 0.066 (2) | 0.070 (2) | 0.060 (2) | 0.0028 (17) | 0.0038 (15) | 0.0030 (16) |
C8 | 0.070 (2) | 0.067 (2) | 0.076 (2) | 0.0049 (17) | 0.0110 (17) | 0.0075 (17) |
C9 | 0.086 (3) | 0.126 (4) | 0.171 (4) | 0.035 (3) | 0.035 (3) | 0.065 (3) |
C10 | 0.1334 (19) | 0.1375 (19) | 0.1356 (19) | 0.0024 (10) | 0.0091 (10) | 0.0072 (10) |
C11 | 0.153 (5) | 0.165 (5) | 0.132 (5) | 0.029 (4) | 0.076 (4) | 0.063 (4) |
C12 | 0.145 (5) | 0.131 (4) | 0.095 (4) | 0.007 (3) | 0.021 (3) | 0.047 (3) |
C13 | 0.085 (3) | 0.114 (3) | 0.084 (3) | 0.004 (2) | 0.010 (2) | 0.030 (2) |
C14 | 0.0672 (19) | 0.072 (2) | 0.0485 (18) | 0.0027 (17) | 0.0073 (15) | −0.0005 (15) |
C15 | 0.0619 (18) | 0.0671 (19) | 0.0464 (17) | 0.0090 (16) | 0.0051 (13) | −0.0028 (14) |
C16 | 0.069 (2) | 0.078 (2) | 0.0472 (18) | 0.0135 (18) | 0.0011 (15) | 0.0014 (15) |
C17 | 0.110 (3) | 0.104 (3) | 0.0447 (19) | 0.004 (3) | 0.0011 (19) | −0.0018 (18) |
C18 | 0.115 (3) | 0.112 (3) | 0.063 (3) | 0.003 (3) | −0.008 (2) | −0.021 (2) |
C19 | 0.098 (3) | 0.097 (3) | 0.076 (3) | −0.011 (2) | −0.001 (2) | −0.017 (2) |
C20 | 0.080 (2) | 0.088 (2) | 0.058 (2) | 0.005 (2) | 0.0109 (17) | −0.0070 (18) |
N1—C7 | 1.289 (4) | C8—C13 | 1.380 (5) |
N1—N2 | 1.370 (3) | C9—C10 | 1.390 (7) |
N2—C14 | 1.347 (4) | C9—H9 | 0.9300 |
N2—H2B | 0.8600 | C10—C11 | 1.382 (8) |
O1—C14 | 1.230 (4) | C10—H10 | 0.9300 |
O2—C16 | 1.361 (4) | C11—C12 | 1.336 (7) |
O2—H2A | 0.8200 | C11—H11 | 0.9300 |
C1—C2 | 1.365 (5) | C12—C13 | 1.387 (6) |
C1—C6 | 1.380 (5) | C12—H12 | 0.9300 |
C1—H1 | 0.9300 | C13—H13 | 0.9300 |
C2—C3 | 1.365 (6) | C14—C15 | 1.484 (4) |
C2—H2 | 0.9300 | C15—C20 | 1.387 (5) |
C3—C4 | 1.345 (6) | C15—C16 | 1.401 (4) |
C3—H3 | 0.9300 | C16—C17 | 1.382 (5) |
C4—C5 | 1.384 (6) | C17—C18 | 1.354 (6) |
C4—H4 | 0.9300 | C17—H17 | 0.9300 |
C5—C6 | 1.381 (5) | C18—C19 | 1.372 (5) |
C5—H5 | 0.9300 | C18—H18 | 0.9300 |
C6—C7 | 1.472 (4) | C19—C20 | 1.369 (5) |
C7—C8 | 1.481 (4) | C19—H19 | 0.9300 |
C8—C9 | 1.360 (5) | C20—H20 | 0.9300 |
C7—N1—N2 | 116.7 (3) | C11—C10—H10 | 120.3 |
C14—N2—N1 | 120.3 (2) | C9—C10—H10 | 120.3 |
C14—N2—H2B | 119.9 | C12—C11—C10 | 121.2 (5) |
N1—N2—H2B | 119.9 | C12—C11—H11 | 119.4 |
C16—O2—H2A | 109.5 | C10—C11—H11 | 119.4 |
C2—C1—C6 | 121.0 (4) | C11—C12—C13 | 118.8 (5) |
C2—C1—H1 | 119.5 | C11—C12—H12 | 120.6 |
C6—C1—H1 | 119.5 | C13—C12—H12 | 120.6 |
C1—C2—C3 | 120.5 (4) | C8—C13—C12 | 121.4 (4) |
C1—C2—H2 | 119.7 | C8—C13—H13 | 119.3 |
C3—C2—H2 | 119.7 | C12—C13—H13 | 119.3 |
C4—C3—C2 | 119.6 (4) | O1—C14—N2 | 121.7 (3) |
C4—C3—H3 | 120.2 | O1—C14—C15 | 120.9 (3) |
C2—C3—H3 | 120.2 | N2—C14—C15 | 117.4 (3) |
C3—C4—C5 | 120.7 (4) | C20—C15—C16 | 117.1 (3) |
C3—C4—H4 | 119.6 | C20—C15—C14 | 117.0 (3) |
C5—C4—H4 | 119.6 | C16—C15—C14 | 125.8 (3) |
C6—C5—C4 | 120.3 (4) | O2—C16—C17 | 121.1 (3) |
C6—C5—H5 | 119.9 | O2—C16—C15 | 119.2 (3) |
C4—C5—H5 | 119.9 | C17—C16—C15 | 119.7 (3) |
C1—C6—C5 | 117.8 (3) | C18—C17—C16 | 121.1 (4) |
C1—C6—C7 | 121.8 (3) | C18—C17—H17 | 119.5 |
C5—C6—C7 | 120.4 (3) | C16—C17—H17 | 119.5 |
N1—C7—C6 | 117.3 (3) | C17—C18—C19 | 120.6 (4) |
N1—C7—C8 | 123.2 (3) | C17—C18—H18 | 119.7 |
C6—C7—C8 | 119.5 (3) | C19—C18—H18 | 119.7 |
C9—C8—C13 | 118.9 (4) | C20—C19—C18 | 118.8 (4) |
C9—C8—C7 | 121.6 (4) | C20—C19—H19 | 120.6 |
C13—C8—C7 | 119.4 (3) | C18—C19—H19 | 120.6 |
C8—C9—C10 | 119.9 (5) | C19—C20—C15 | 122.6 (3) |
C8—C9—H9 | 120.0 | C19—C20—H20 | 118.7 |
C10—C9—H9 | 120.0 | C15—C20—H20 | 118.7 |
C11—C10—C9 | 119.5 (5) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2B···O2 | 0.86 | 1.95 | 2.635 (3) | 136 |
O2—H2A···O1i | 0.82 | 1.87 | 2.688 (3) | 172 |
Symmetry code: (i) −y+3/4, x+1/4, z+1/4. |
Experimental details
Crystal data | |
Chemical formula | C20H16N2O2 |
Mr | 316.35 |
Crystal system, space group | Tetragonal, I41/a |
Temperature (K) | 273 |
a, c (Å) | 16.5157 (9), 24.401 (3) |
V (Å3) | 6655.8 (10) |
Z | 16 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.31 × 0.25 × 0.19 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.972, 0.987 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 17393, 2929, 1610 |
Rint | 0.096 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.072, 0.255, 1.01 |
No. of reflections | 2929 |
No. of parameters | 217 |
No. of restraints | 7 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.53, −0.47 |
Computer programs: SMART (Siemens, 1996), SAINT (Siemens, 1996), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2B···O2 | 0.86 | 1.95 | 2.635 (3) | 135.8 |
O2—H2A···O1i | 0.82 | 1.87 | 2.688 (3) | 171.6 |
Symmetry code: (i) −y+3/4, x+1/4, z+1/4. |
Acknowledgements
The authors thank the Postgraduate Foundation of Taishan University (No. Y07–2–15) for financial support.
References
Chang, J.-G. (2008). Acta Cryst. E64, o198. Web of Science CSD CrossRef IUCr Journals Google Scholar
Huo, L.-H., Gao, S., Zhao, H., Zhao, J.-G., Zain, S. M. & Ng, S. W. (2004). Acta Cryst. E60, o1538–o1540. Web of Science CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Siemens (1996). SMART and SAINT. Siemens Analytical X-ray Instruments Inc., Madison, Wisconsin, USA. Google Scholar
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.
The chemistry of 2-hydroxybenzohydrazide and its derivatives are studied because of their multiply coordination environment (Chang, 2008; Huo et al., 2004). They represent a class of highly useful compounds in which the presence of O and N atom renders various hydrogen bonding motifs leading to the formation of versatile architecture in the crystal lattice. As the continue of the aspect, we study the reaction of benzophenone and 2–hydroxybenzohydrazide in the state of refluxing in ethanol.
Herein we report the molecular (Fig. 1) and crystal structures of the title compound, C20H16N2O2, which was characterized by elemental analyses too. In the structure an intramolecular N2—H2B···O2 (Fig. 1) and an intermolecular O2—H2A···O1i (Fig. 2) H–bonds were found. Symmetry code: (i) 3/4-y, 1/4+x, 1/4+z).