organic compounds
N′-Diphenylmethylene-2-hydroxybenzohydrazide
aDepartment of Chemistry, Taishan University, 271021 Taian, Shandong, People's Republic of China, and bDepartment of Materials Science and Chemical Engineering, Taishan University, 271021 Taian, Shandong, People's Republic of China
*Correspondence e-mail: jiningning16@163.com
The title compound, C20H16N2O2, was synthesized by the reaction of 2-hydroxybenzohydrazide with diphenylmethanone. The dihedral angle between the phenyl rings is 76.28 (11)°. The amino H atom is involved in an intramolecular N—H⋯O hydrogen bond. In the the hydroxy groups and carbonyl O atoms form intermolecular O—H⋯O hydrogen bonds, which link the molecules into chains running along the b axis.
Related literature
For general background to et al. (1993); Musie et al. (2001); Paul et al. (2002); Anderson et al. (1997). For a related structure, see Ji & Shi (2008).
in coordination chemistry, see: GarnovskiiExperimental
Crystal data
|
Refinement
|
Data collection: APEX2 (Bruker, 2005); cell SAINT (Bruker, 2005); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536809043530/cv2634sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536809043530/cv2634Isup2.hkl
The title compound was synthesized by the reaction of 2-hydroxy-benzoic acid hydrazide(1 mmol, 152.2 mg) with diphenyl-methanone (1 mmol, 182.2 mg) in ethanol (20 ml) under reflux conditions (348 K) for 5 h. The solvent was removed and the solid product recrystallized from tetrahydrofuran. After six days, colourless crystals suitable for X-ray diffraction study were obtained.
All H atoms were placed in idealized positions (C—H = 0.93— 0.97 Å, N—H = 0.86 Å, O—H = 0.82 Å) and refined as riding atoms, with Uiso(H) = 1.2 or 1.5Ueq of the parent atom.
In recent years, a number of Schiff-bases have been investigated in terms of their coordination chemistry (Garnovskii et al., 1993; Musie et al., 2001; Paul et al., 2002) and biological systems (Anderson et al., 1997). In order to search for new Schiff-bases with higher bioactivity, the title compound, (I), was synthesized and its
determined.In (I) (Fig. 1), the bond lengths and angles are in a good agreement with those observed in the related compound (Ji & Shi, 2008). Intramolecular O—H···N hydrogen bond (Table 1) influences the
In the the molecules are linked into infinite chains by O—H···O hydrogen bonds (Table 1, Fig. 2).For general background to
in coordination chemistry, see: Garnovskii et al. (1993); Musie et al. (2001); Paul et al. (2002); Anderson et al. (1997). For a related structure, see Ji & Shi (2008).Data collection: APEX2 (Bruker, 2005); cell
SAINT (Bruker, 2005); data reduction: SAINT (Bruker, 2005); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. The molecular structure of (I), with displacement ellipsoids drawn at the 50% probability level. | |
Fig. 2. A portion of the crystal packing showing the hydrogen-bonded (dashed lines) chain. |
C20H16N2O2 | F(000) = 664 |
Mr = 316.35 | Dx = 1.268 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 1519 reflections |
a = 15.4057 (18) Å | θ = 2.7–21.7° |
b = 12.5179 (15) Å | µ = 0.08 mm−1 |
c = 8.8445 (10) Å | T = 295 K |
β = 103.777 (2)° | Block, colourless |
V = 1656.6 (3) Å3 | 0.15 × 0.12 × 0.10 mm |
Z = 4 |
Bruker APEXII CCD area-detector diffractometer | 2934 independent reflections |
Radiation source: fine-focus sealed tube | 1910 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.034 |
φ and ω scans | θmax = 25.1°, θmin = 1.4° |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | h = −18→16 |
Tmin = 0.988, Tmax = 0.992 | k = −14→13 |
8538 measured reflections | l = −10→10 |
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)] = 0.044 | H-atom parameters constrained |
wR(F2) = 0.126 | w = 1/[σ2(Fo2) + (0.0607P)2 + 0.0637P] where P = (Fo2 + 2Fc2)/3 |
S = 1.05 | (Δ/σ)max < 0.001 |
2934 reflections | Δρmax = 0.15 e Å−3 |
219 parameters | Δρmin = −0.15 e Å−3 |
0 restraints | Extinction correction: SHELXTL (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0070 (15) |
C20H16N2O2 | V = 1656.6 (3) Å3 |
Mr = 316.35 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 15.4057 (18) Å | µ = 0.08 mm−1 |
b = 12.5179 (15) Å | T = 295 K |
c = 8.8445 (10) Å | 0.15 × 0.12 × 0.10 mm |
β = 103.777 (2)° |
Bruker APEXII CCD area-detector diffractometer | 2934 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | 1910 reflections with I > 2σ(I) |
Tmin = 0.988, Tmax = 0.992 | Rint = 0.034 |
8538 measured reflections |
R[F2 > 2σ(F2)] = 0.044 | 0 restraints |
wR(F2) = 0.126 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.15 e Å−3 |
2934 reflections | Δρmin = −0.15 e Å−3 |
219 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 | ||
O1 | 0.00834 (9) | 0.02500 (10) | 0.30160 (15) | 0.0574 (4) | |
H1 | −0.0088 | −0.0359 | 0.3125 | 0.086* | |
O2 | 0.06286 (9) | 0.32928 (10) | 0.16995 (15) | 0.0555 (4) | |
N1 | 0.12496 (10) | 0.18665 (12) | 0.30963 (18) | 0.0502 (4) | |
H1A | 0.1222 | 0.1197 | 0.3297 | 0.060* | |
N2 | 0.19612 (10) | 0.24715 (12) | 0.38673 (19) | 0.0528 (4) | |
C8 | 0.26326 (12) | 0.19876 (15) | 0.4739 (2) | 0.0482 (5) | |
C2 | −0.01536 (12) | 0.16611 (13) | 0.1159 (2) | 0.0422 (4) | |
C7 | 0.05922 (12) | 0.23391 (14) | 0.2017 (2) | 0.0434 (5) | |
C9 | 0.27034 (12) | 0.08062 (15) | 0.4971 (2) | 0.0484 (5) | |
C6 | −0.10938 (12) | 0.00942 (15) | 0.0696 (2) | 0.0502 (5) | |
H6 | −0.1254 | −0.0570 | 0.1016 | 0.060* | |
C1 | −0.03865 (12) | 0.06532 (14) | 0.1631 (2) | 0.0431 (5) | |
C15 | 0.34002 (12) | 0.26687 (16) | 0.5508 (2) | 0.0520 (5) | |
C3 | −0.06406 (13) | 0.20669 (15) | −0.0252 (2) | 0.0521 (5) | |
H3 | −0.0496 | 0.2738 | −0.0570 | 0.063* | |
C16 | 0.34477 (13) | 0.37350 (16) | 0.5095 (2) | 0.0586 (6) | |
H16 | 0.2984 | 0.4033 | 0.4343 | 0.070* | |
C5 | −0.15573 (13) | 0.05148 (16) | −0.0693 (2) | 0.0577 (5) | |
H5 | −0.2029 | 0.0133 | −0.1309 | 0.069* | |
C17 | 0.41724 (15) | 0.43560 (19) | 0.5786 (3) | 0.0684 (6) | |
H17 | 0.4193 | 0.5068 | 0.5499 | 0.082* | |
C20 | 0.41002 (13) | 0.22566 (19) | 0.6647 (3) | 0.0659 (6) | |
H20 | 0.4081 | 0.1548 | 0.6951 | 0.079* | |
C4 | −0.13280 (14) | 0.15061 (16) | −0.1188 (2) | 0.0601 (6) | |
H4 | −0.1636 | 0.1785 | −0.2139 | 0.072* | |
C10 | 0.32717 (14) | 0.02240 (18) | 0.4281 (2) | 0.0635 (6) | |
H10 | 0.3609 | 0.0570 | 0.3685 | 0.076* | |
C14 | 0.22226 (14) | 0.02769 (16) | 0.5863 (3) | 0.0620 (6) | |
H14 | 0.1841 | 0.0658 | 0.6336 | 0.074* | |
C12 | 0.28481 (17) | −0.13853 (18) | 0.5365 (3) | 0.0733 (7) | |
H12 | 0.2891 | −0.2123 | 0.5489 | 0.088* | |
C13 | 0.23000 (16) | −0.08149 (18) | 0.6065 (3) | 0.0746 (7) | |
H13 | 0.1977 | −0.1163 | 0.6682 | 0.089* | |
C18 | 0.48636 (16) | 0.3929 (2) | 0.6896 (3) | 0.0767 (7) | |
H18 | 0.5356 | 0.4347 | 0.7348 | 0.092* | |
C11 | 0.33363 (16) | −0.08721 (19) | 0.4479 (3) | 0.0739 (7) | |
H11 | 0.3713 | −0.1262 | 0.4008 | 0.089* | |
C19 | 0.48253 (15) | 0.2882 (2) | 0.7335 (3) | 0.0791 (7) | |
H19 | 0.5288 | 0.2593 | 0.8098 | 0.095* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0607 (9) | 0.0447 (8) | 0.0559 (9) | −0.0078 (7) | −0.0078 (7) | 0.0078 (7) |
O2 | 0.0594 (9) | 0.0384 (7) | 0.0623 (9) | −0.0028 (6) | 0.0021 (7) | 0.0022 (6) |
N1 | 0.0429 (9) | 0.0383 (8) | 0.0611 (10) | −0.0037 (7) | −0.0043 (8) | 0.0002 (8) |
N2 | 0.0446 (9) | 0.0491 (9) | 0.0586 (10) | −0.0067 (8) | 0.0000 (8) | −0.0011 (8) |
C8 | 0.0404 (11) | 0.0523 (11) | 0.0488 (11) | −0.0012 (9) | 0.0042 (9) | 0.0004 (9) |
C2 | 0.0399 (10) | 0.0395 (10) | 0.0448 (11) | 0.0032 (8) | 0.0056 (8) | −0.0019 (8) |
C7 | 0.0413 (10) | 0.0396 (11) | 0.0472 (11) | 0.0028 (9) | 0.0059 (9) | −0.0006 (9) |
C9 | 0.0382 (10) | 0.0516 (11) | 0.0494 (12) | 0.0018 (9) | −0.0011 (9) | −0.0013 (9) |
C6 | 0.0461 (11) | 0.0439 (11) | 0.0562 (12) | −0.0032 (9) | 0.0038 (10) | −0.0039 (9) |
C1 | 0.0422 (10) | 0.0405 (10) | 0.0433 (11) | 0.0032 (8) | 0.0034 (9) | −0.0025 (8) |
C15 | 0.0426 (11) | 0.0608 (13) | 0.0500 (12) | −0.0057 (10) | 0.0055 (9) | −0.0017 (10) |
C3 | 0.0526 (12) | 0.0480 (11) | 0.0514 (12) | 0.0015 (9) | 0.0038 (10) | 0.0028 (9) |
C16 | 0.0492 (12) | 0.0623 (13) | 0.0614 (14) | −0.0066 (11) | 0.0078 (10) | 0.0012 (11) |
C5 | 0.0510 (12) | 0.0580 (13) | 0.0564 (13) | −0.0049 (10) | −0.0025 (10) | −0.0116 (11) |
C17 | 0.0616 (14) | 0.0704 (14) | 0.0731 (16) | −0.0205 (12) | 0.0156 (13) | −0.0029 (12) |
C20 | 0.0542 (13) | 0.0691 (14) | 0.0652 (14) | −0.0085 (11) | −0.0041 (11) | 0.0014 (11) |
C4 | 0.0604 (13) | 0.0600 (13) | 0.0493 (12) | 0.0007 (11) | −0.0078 (10) | 0.0012 (10) |
C10 | 0.0580 (14) | 0.0745 (15) | 0.0561 (13) | 0.0080 (12) | 0.0096 (11) | −0.0011 (12) |
C14 | 0.0535 (13) | 0.0533 (12) | 0.0791 (15) | 0.0034 (10) | 0.0157 (11) | 0.0031 (11) |
C12 | 0.0687 (16) | 0.0562 (14) | 0.0826 (17) | 0.0063 (12) | −0.0065 (14) | −0.0007 (13) |
C13 | 0.0647 (15) | 0.0598 (14) | 0.0981 (19) | −0.0009 (12) | 0.0170 (14) | 0.0087 (13) |
C18 | 0.0557 (15) | 0.0946 (19) | 0.0743 (16) | −0.0265 (14) | 0.0043 (13) | −0.0112 (14) |
C11 | 0.0684 (16) | 0.0753 (16) | 0.0708 (16) | 0.0239 (13) | 0.0021 (13) | −0.0180 (13) |
C19 | 0.0538 (14) | 0.0948 (19) | 0.0756 (17) | −0.0127 (13) | −0.0108 (12) | −0.0011 (14) |
O1—C1 | 1.363 (2) | C16—C17 | 1.378 (3) |
O1—H1 | 0.8200 | C16—H16 | 0.9300 |
O2—C7 | 1.231 (2) | C5—C4 | 1.389 (3) |
N1—C7 | 1.352 (2) | C5—H5 | 0.9300 |
N1—N2 | 1.373 (2) | C17—C18 | 1.373 (3) |
N1—H1A | 0.8600 | C17—H17 | 0.9300 |
N2—C8 | 1.285 (2) | C20—C19 | 1.381 (3) |
C8—C15 | 1.485 (3) | C20—H20 | 0.9300 |
C8—C9 | 1.493 (3) | C4—H4 | 0.9300 |
C2—C3 | 1.390 (3) | C10—C11 | 1.384 (3) |
C2—C1 | 1.402 (2) | C10—H10 | 0.9300 |
C2—C7 | 1.483 (2) | C14—C13 | 1.380 (3) |
C9—C14 | 1.374 (3) | C14—H14 | 0.9300 |
C9—C10 | 1.388 (3) | C12—C13 | 1.362 (3) |
C6—C5 | 1.371 (3) | C12—C11 | 1.369 (3) |
C6—C1 | 1.390 (3) | C12—H12 | 0.9300 |
C6—H6 | 0.9300 | C13—H13 | 0.9300 |
C15—C20 | 1.388 (3) | C18—C19 | 1.372 (3) |
C15—C16 | 1.390 (3) | C18—H18 | 0.9300 |
C3—C4 | 1.372 (3) | C11—H11 | 0.9300 |
C3—H3 | 0.9300 | C19—H19 | 0.9300 |
C1—O1—H1 | 109.5 | C6—C5—H5 | 119.7 |
C7—N1—N2 | 119.00 (15) | C4—C5—H5 | 119.7 |
C7—N1—H1A | 120.5 | C18—C17—C16 | 120.4 (2) |
N2—N1—H1A | 120.5 | C18—C17—H17 | 119.8 |
C8—N2—N1 | 118.12 (16) | C16—C17—H17 | 119.8 |
N2—C8—C15 | 116.33 (17) | C19—C20—C15 | 121.1 (2) |
N2—C8—C9 | 124.85 (17) | C19—C20—H20 | 119.5 |
C15—C8—C9 | 118.78 (16) | C15—C20—H20 | 119.5 |
C3—C2—C1 | 118.30 (17) | C3—C4—C5 | 118.98 (19) |
C3—C2—C7 | 115.88 (16) | C3—C4—H4 | 120.5 |
C1—C2—C7 | 125.80 (16) | C5—C4—H4 | 120.5 |
O2—C7—N1 | 121.23 (17) | C11—C10—C9 | 119.9 (2) |
O2—C7—C2 | 120.69 (16) | C11—C10—H10 | 120.0 |
N1—C7—C2 | 118.00 (16) | C9—C10—H10 | 120.0 |
C14—C9—C10 | 118.84 (19) | C9—C14—C13 | 120.7 (2) |
C14—C9—C8 | 121.65 (17) | C9—C14—H14 | 119.7 |
C10—C9—C8 | 119.51 (18) | C13—C14—H14 | 119.7 |
C5—C6—C1 | 120.47 (18) | C13—C12—C11 | 119.9 (2) |
C5—C6—H6 | 119.8 | C13—C12—H12 | 120.0 |
C1—C6—H6 | 119.8 | C11—C12—H12 | 120.0 |
O1—C1—C6 | 121.44 (16) | C12—C13—C14 | 120.3 (2) |
O1—C1—C2 | 118.79 (16) | C12—C13—H13 | 119.9 |
C6—C1—C2 | 119.76 (17) | C14—C13—H13 | 119.9 |
C20—C15—C16 | 117.83 (19) | C19—C18—C17 | 119.7 (2) |
C20—C15—C8 | 121.03 (18) | C19—C18—H18 | 120.1 |
C16—C15—C8 | 121.13 (18) | C17—C18—H18 | 120.1 |
C4—C3—C2 | 121.93 (18) | C12—C11—C10 | 120.4 (2) |
C4—C3—H3 | 119.0 | C12—C11—H11 | 119.8 |
C2—C3—H3 | 119.0 | C10—C11—H11 | 119.8 |
C17—C16—C15 | 120.9 (2) | C18—C19—C20 | 120.1 (2) |
C17—C16—H16 | 119.6 | C18—C19—H19 | 120.0 |
C15—C16—H16 | 119.6 | C20—C19—H19 | 120.0 |
C6—C5—C4 | 120.55 (19) | ||
C7—N1—N2—C8 | −171.19 (17) | C9—C8—C15—C16 | 167.06 (18) |
N1—N2—C8—C15 | 177.98 (15) | C1—C2—C3—C4 | −0.7 (3) |
N1—N2—C8—C9 | 0.5 (3) | C7—C2—C3—C4 | 177.72 (17) |
N2—N1—C7—O2 | 1.2 (3) | C20—C15—C16—C17 | 0.7 (3) |
N2—N1—C7—C2 | 177.88 (15) | C8—C15—C16—C17 | −178.39 (18) |
C3—C2—C7—O2 | 17.5 (3) | C1—C6—C5—C4 | −0.1 (3) |
C1—C2—C7—O2 | −164.16 (17) | C15—C16—C17—C18 | 0.2 (3) |
C3—C2—C7—N1 | −159.20 (16) | C16—C15—C20—C19 | −0.7 (3) |
C1—C2—C7—N1 | 19.1 (3) | C8—C15—C20—C19 | 178.36 (19) |
N2—C8—C9—C14 | −73.8 (3) | C2—C3—C4—C5 | 1.6 (3) |
C15—C8—C9—C14 | 108.8 (2) | C6—C5—C4—C3 | −1.2 (3) |
N2—C8—C9—C10 | 106.6 (2) | C14—C9—C10—C11 | 0.9 (3) |
C15—C8—C9—C10 | −70.8 (2) | C8—C9—C10—C11 | −179.48 (19) |
C5—C6—C1—O1 | 180.00 (17) | C10—C9—C14—C13 | −0.3 (3) |
C5—C6—C1—C2 | 0.9 (3) | C8—C9—C14—C13 | −179.9 (2) |
C3—C2—C1—O1 | −179.66 (16) | C11—C12—C13—C14 | 1.1 (4) |
C7—C2—C1—O1 | 2.1 (3) | C9—C14—C13—C12 | −0.8 (4) |
C3—C2—C1—C6 | −0.5 (3) | C16—C17—C18—C19 | −1.0 (4) |
C7—C2—C1—C6 | −178.80 (16) | C13—C12—C11—C10 | −0.5 (4) |
N2—C8—C15—C20 | 170.39 (19) | C9—C10—C11—C12 | −0.6 (3) |
C9—C8—C15—C20 | −12.0 (3) | C17—C18—C19—C20 | 1.0 (4) |
N2—C8—C15—C16 | −10.6 (3) | C15—C20—C19—C18 | −0.1 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O2i | 0.82 | 1.90 | 2.7204 (17) | 173 |
N1—H1A···O1 | 0.86 | 2.08 | 2.696 (2) | 128 |
Symmetry code: (i) −x, y−1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C20H16N2O2 |
Mr | 316.35 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 295 |
a, b, c (Å) | 15.4057 (18), 12.5179 (15), 8.8445 (10) |
β (°) | 103.777 (2) |
V (Å3) | 1656.6 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.15 × 0.12 × 0.10 |
Data collection | |
Diffractometer | Bruker APEXII CCD area-detector |
Absorption correction | Multi-scan (SADABS; Bruker, 2005) |
Tmin, Tmax | 0.988, 0.992 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8538, 2934, 1910 |
Rint | 0.034 |
(sin θ/λ)max (Å−1) | 0.596 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.044, 0.126, 1.05 |
No. of reflections | 2934 |
No. of parameters | 219 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.15, −0.15 |
Computer programs: APEX2 (Bruker, 2005), SAINT (Bruker, 2005), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O2i | 0.82 | 1.90 | 2.7204 (17) | 173.0 |
N1—H1A···O1 | 0.86 | 2.08 | 2.696 (2) | 127.7 |
Symmetry code: (i) −x, y−1/2, −z+1/2. |
Acknowledgements
This project was supported by the Postgraduate Foundation of Taishan University (grant No. Y06–2–08).
References
Anderson, O. P., Cour, A. L., Findeisen, M., Hennig, L., Simonsen, O., Taylor, L. & Toflund, H. (1997). J. Chem. Soc. Dalton Trans. pp. 111–120. CSD CrossRef Web of Science Google Scholar
Bruker (2005). APEX2, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Garnovskii, A. D., Nivorozhkin, A. L. & Minkin, V. I. (1993). Coord. Chem. Rev. 126, 1–69. CrossRef CAS Web of Science Google Scholar
Ji, N.-N. & Shi, Z.-Q. (2008). Acta Cryst. E64, o1918. Web of Science CSD CrossRef IUCr Journals Google Scholar
Musie, G. T., Wei, M., Subramaniam, B. & Busch, D. H. (2001). Inorg. Chem. 40, 3336–3341. Web of Science CrossRef PubMed CAS Google Scholar
Paul, S., Barik, A. K., Peng, S. M. & Kar, S. K. (2002). Inorg. Chem. 41, 5803–5809. Web of Science CSD CrossRef PubMed CAS Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals 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.
In recent years, a number of Schiff-bases have been investigated in terms of their coordination chemistry (Garnovskii et al., 1993; Musie et al., 2001; Paul et al., 2002) and biological systems (Anderson et al., 1997). In order to search for new Schiff-bases with higher bioactivity, the title compound, (I), was synthesized and its crystal structure determined.
In (I) (Fig. 1), the bond lengths and angles are in a good agreement with those observed in the related compound (Ji & Shi, 2008). Intramolecular O—H···N hydrogen bond (Table 1) influences the molecular conformation. In the crystal structure, the molecules are linked into infinite chains by O—H···O hydrogen bonds (Table 1, Fig. 2).