organic compounds
2-Benzyliminomethyl-4-chlorophenol
aDepartment of Chemistry, Baoji University of Arts and Sciences, Baoji, Shaanxi 721007, People's Republic of China
*Correspondence e-mail: zhangxinli6008@163.com
The title compound, C14H12ClNO, is a Schiff base derived from the condensation of equimolar quantities of 5-chlorosalicylaldehyde and 1-benzylamine. The molecule has a trans configuration with respect to the imine C=N double bond. The N atom is involved in an intramolecular O—H⋯N hydrogen bond.
Related literature
For related literature, see: Ali et al. (2002); Cukurovali et al. (2002); Tarafder et al. (2002).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2000); cell SMART; data reduction: SAINT (Bruker, 2000); 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/S1600536808003802/cs2068sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808003802/cs2068Isup2.hkl
All reagents used were of analytical grade from commercial sources and used without further purification. 5-Chlorosalicylaldehyde (0.1 mmol, 15.65 mg) and 1-benzylamine (0.1 mmol, 10.7 mg) were dissolved in methanol (10 ml). The resulting solution was stirred for 30 min, filtered and the filtrate allowed to stand at room temperature. Yellow crystals of the title compound appeared after two weeks of slow evaporation of the solvent.
All H atoms were placed in geometrically idealized positions and constrained to ride on their parent atoms with C—H distances in the range 0.93–0.96 Å and Uiso(H) = 1.2Ueq or 1.5Ueq(C/O)
Data collection: SMART (Bruker, 2000); cell
SMART (Bruker, 2000); data reduction: SAINT (Bruker, 2000); 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).C14H12ClNO | F(000) = 512 |
Mr = 245.70 | Dx = 1.311 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
a = 14.3693 (18) Å | Cell parameters from 877 reflections |
b = 6.0401 (8) Å | θ = 2.8–25.1° |
c = 14.777 (2) Å | µ = 0.29 mm−1 |
β = 103.911 (2)° | T = 298 K |
V = 1244.9 (3) Å3 | Rod, yellow |
Z = 4 | 0.52 × 0.38 × 0.11 mm |
Bruker SMART APEX diffractometer | 2177 independent reflections |
Radiation source: fine-focus sealed tube | 864 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.046 |
ϕ and ω scans | θmax = 25.0°, θmin = 1.5° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −17→17 |
Tmin = 0.864, Tmax = 0.969 | k = −7→6 |
5203 measured reflections | l = −17→10 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.045 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.116 | H-atom parameters constrained |
S = 0.98 | w = 1/[σ2(Fo2) + (0.0248P)2 + 0.4795P] where P = (Fo2 + 2Fc2)/3 |
2177 reflections | (Δ/σ)max < 0.001 |
154 parameters | Δρmax = 0.15 e Å−3 |
0 restraints | Δρmin = −0.22 e Å−3 |
C14H12ClNO | V = 1244.9 (3) Å3 |
Mr = 245.70 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 14.3693 (18) Å | µ = 0.29 mm−1 |
b = 6.0401 (8) Å | T = 298 K |
c = 14.777 (2) Å | 0.52 × 0.38 × 0.11 mm |
β = 103.911 (2)° |
Bruker SMART APEX diffractometer | 2177 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 864 reflections with I > 2σ(I) |
Tmin = 0.864, Tmax = 0.969 | Rint = 0.046 |
5203 measured reflections |
R[F2 > 2σ(F2)] = 0.045 | 0 restraints |
wR(F2) = 0.116 | H-atom parameters constrained |
S = 0.98 | Δρmax = 0.15 e Å−3 |
2177 reflections | Δρmin = −0.22 e Å−3 |
154 parameters |
x | y | z | Uiso*/Ueq | ||
Cl1 | 0.24166 (8) | 0.1883 (2) | 0.07747 (9) | 0.1401 (6) | |
N1 | 0.6895 (2) | 0.0444 (5) | 0.2091 (2) | 0.0878 (10) | |
O1 | 0.60143 (16) | −0.2928 (4) | 0.11796 (16) | 0.0884 (8) | |
H1 | 0.6468 | −0.2203 | 0.1478 | 0.133* | |
C1 | 0.6093 (3) | 0.1388 (6) | 0.1982 (2) | 0.0772 (11) | |
H1A | 0.6070 | 0.2803 | 0.2223 | 0.093* | |
C2 | 0.5198 (2) | 0.0337 (6) | 0.1488 (2) | 0.0580 (8) | |
C3 | 0.5196 (3) | −0.1769 (6) | 0.1098 (2) | 0.0613 (9) | |
C4 | 0.4338 (3) | −0.2717 (6) | 0.0612 (2) | 0.0738 (10) | |
H4 | 0.4337 | −0.4118 | 0.0350 | 0.089* | |
C5 | 0.3499 (3) | −0.1585 (7) | 0.0520 (2) | 0.0769 (11) | |
H5 | 0.2927 | −0.2222 | 0.0194 | 0.092* | |
C6 | 0.3489 (3) | 0.0483 (7) | 0.0904 (2) | 0.0740 (10) | |
C7 | 0.4331 (3) | 0.1431 (6) | 0.1383 (2) | 0.0717 (10) | |
H7 | 0.4320 | 0.2831 | 0.1642 | 0.086* | |
C8 | 0.7753 (3) | 0.1670 (8) | 0.2583 (3) | 0.1196 (16) | |
H8A | 0.8064 | 0.0884 | 0.3147 | 0.143* | |
H8B | 0.7567 | 0.3121 | 0.2759 | 0.143* | |
C9 | 0.8432 (2) | 0.1917 (8) | 0.1974 (3) | 0.0717 (10) | |
C10 | 0.8429 (3) | 0.3790 (7) | 0.1443 (3) | 0.0875 (12) | |
H10 | 0.8002 | 0.4932 | 0.1469 | 0.105* | |
C11 | 0.9053 (3) | 0.3980 (8) | 0.0877 (3) | 0.1031 (15) | |
H11 | 0.9042 | 0.5248 | 0.0517 | 0.124* | |
C12 | 0.9683 (3) | 0.2347 (11) | 0.0834 (3) | 0.1099 (16) | |
H12 | 1.0110 | 0.2503 | 0.0454 | 0.132* | |
C13 | 0.9693 (3) | 0.0497 (9) | 0.1342 (4) | 0.1057 (15) | |
H13 | 1.0120 | −0.0640 | 0.1308 | 0.127* | |
C14 | 0.9075 (3) | 0.0294 (7) | 0.1905 (3) | 0.0904 (12) | |
H14 | 0.9091 | −0.0991 | 0.2255 | 0.108* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.1065 (8) | 0.1452 (11) | 0.1546 (11) | 0.0485 (8) | 0.0038 (7) | 0.0075 (9) |
N1 | 0.0742 (19) | 0.117 (3) | 0.075 (2) | −0.030 (2) | 0.0236 (18) | −0.004 (2) |
O1 | 0.0883 (17) | 0.0730 (17) | 0.113 (2) | 0.0039 (14) | 0.0419 (15) | −0.0134 (15) |
C1 | 0.102 (3) | 0.080 (3) | 0.056 (2) | −0.032 (3) | 0.030 (2) | −0.014 (2) |
C2 | 0.078 (2) | 0.051 (2) | 0.050 (2) | −0.007 (2) | 0.0238 (18) | 0.0015 (18) |
C3 | 0.078 (2) | 0.052 (2) | 0.062 (2) | −0.002 (2) | 0.033 (2) | 0.0004 (19) |
C4 | 0.096 (3) | 0.057 (2) | 0.078 (3) | −0.015 (2) | 0.038 (2) | −0.015 (2) |
C5 | 0.084 (3) | 0.091 (3) | 0.055 (2) | −0.016 (2) | 0.016 (2) | −0.007 (2) |
C6 | 0.082 (3) | 0.077 (3) | 0.063 (3) | 0.014 (2) | 0.017 (2) | 0.011 (2) |
C7 | 0.102 (3) | 0.053 (2) | 0.061 (2) | 0.001 (2) | 0.023 (2) | −0.0014 (19) |
C8 | 0.092 (3) | 0.186 (5) | 0.086 (3) | −0.059 (3) | 0.031 (3) | −0.032 (3) |
C9 | 0.065 (2) | 0.079 (3) | 0.068 (3) | −0.016 (2) | 0.011 (2) | −0.012 (2) |
C10 | 0.072 (3) | 0.073 (3) | 0.111 (4) | 0.005 (2) | 0.011 (2) | −0.004 (3) |
C11 | 0.094 (3) | 0.099 (4) | 0.111 (4) | −0.022 (3) | 0.015 (3) | 0.030 (3) |
C12 | 0.079 (3) | 0.160 (5) | 0.096 (4) | −0.018 (3) | 0.029 (3) | −0.002 (4) |
C13 | 0.096 (3) | 0.111 (4) | 0.105 (4) | 0.024 (3) | 0.013 (3) | −0.021 (3) |
C14 | 0.114 (3) | 0.074 (3) | 0.075 (3) | −0.004 (3) | 0.007 (3) | 0.003 (2) |
Cl1—C6 | 1.727 (3) | C7—H7 | 0.9300 |
N1—C1 | 1.260 (4) | C8—C9 | 1.485 (4) |
N1—C8 | 1.471 (4) | C8—H8A | 0.9700 |
O1—C3 | 1.349 (3) | C8—H8B | 0.9700 |
O1—H1 | 0.8200 | C9—C14 | 1.368 (5) |
C1—C2 | 1.462 (4) | C9—C10 | 1.376 (5) |
C1—H1A | 0.9300 | C10—C11 | 1.370 (5) |
C2—C7 | 1.385 (4) | C10—H10 | 0.9300 |
C2—C3 | 1.396 (4) | C11—C12 | 1.351 (5) |
C3—C4 | 1.392 (4) | C11—H11 | 0.9300 |
C4—C5 | 1.365 (4) | C12—C13 | 1.344 (5) |
C4—H4 | 0.9300 | C12—H12 | 0.9300 |
C5—C6 | 1.373 (4) | C13—C14 | 1.361 (5) |
C5—H5 | 0.9300 | C13—H13 | 0.9300 |
C6—C7 | 1.372 (4) | C14—H14 | 0.9300 |
C1—N1—C8 | 117.9 (4) | N1—C8—H8A | 109.6 |
C3—O1—H1 | 109.5 | C9—C8—H8A | 109.6 |
N1—C1—C2 | 122.4 (4) | N1—C8—H8B | 109.6 |
N1—C1—H1A | 118.8 | C9—C8—H8B | 109.6 |
C2—C1—H1A | 118.8 | H8A—C8—H8B | 108.1 |
C7—C2—C3 | 118.4 (3) | C14—C9—C10 | 117.2 (4) |
C7—C2—C1 | 120.6 (3) | C14—C9—C8 | 121.8 (5) |
C3—C2—C1 | 121.0 (3) | C10—C9—C8 | 121.0 (4) |
O1—C3—C4 | 118.5 (3) | C11—C10—C9 | 120.3 (4) |
O1—C3—C2 | 121.4 (3) | C11—C10—H10 | 119.9 |
C4—C3—C2 | 120.1 (3) | C9—C10—H10 | 119.9 |
C5—C4—C3 | 119.8 (3) | C12—C11—C10 | 120.8 (4) |
C5—C4—H4 | 120.1 | C12—C11—H11 | 119.6 |
C3—C4—H4 | 120.1 | C10—C11—H11 | 119.6 |
C4—C5—C6 | 120.8 (3) | C13—C12—C11 | 119.9 (5) |
C4—C5—H5 | 119.6 | C13—C12—H12 | 120.1 |
C6—C5—H5 | 119.6 | C11—C12—H12 | 120.1 |
C7—C6—C5 | 119.8 (3) | C12—C13—C14 | 119.7 (5) |
C7—C6—Cl1 | 120.4 (3) | C12—C13—H13 | 120.2 |
C5—C6—Cl1 | 119.9 (3) | C14—C13—H13 | 120.2 |
C6—C7—C2 | 121.1 (3) | C13—C14—C9 | 122.2 (4) |
C6—C7—H7 | 119.4 | C13—C14—H14 | 118.9 |
C2—C7—H7 | 119.4 | C9—C14—H14 | 118.9 |
N1—C8—C9 | 110.2 (3) | ||
C8—N1—C1—C2 | 178.8 (3) | C3—C2—C7—C6 | −0.4 (5) |
N1—C1—C2—C7 | 180.0 (3) | C1—C2—C7—C6 | 178.5 (3) |
N1—C1—C2—C3 | −1.2 (5) | C1—N1—C8—C9 | −121.1 (4) |
C7—C2—C3—O1 | −179.6 (3) | N1—C8—C9—C14 | −84.3 (4) |
C1—C2—C3—O1 | 1.5 (5) | N1—C8—C9—C10 | 94.8 (4) |
C7—C2—C3—C4 | 0.4 (4) | C14—C9—C10—C11 | −0.1 (5) |
C1—C2—C3—C4 | −178.4 (3) | C8—C9—C10—C11 | −179.2 (3) |
O1—C3—C4—C5 | 179.8 (3) | C9—C10—C11—C12 | −0.5 (6) |
C2—C3—C4—C5 | −0.2 (5) | C10—C11—C12—C13 | 0.9 (7) |
C3—C4—C5—C6 | −0.1 (5) | C11—C12—C13—C14 | −0.9 (7) |
C4—C5—C6—C7 | 0.2 (5) | C12—C13—C14—C9 | 0.3 (6) |
C4—C5—C6—Cl1 | 179.8 (3) | C10—C9—C14—C13 | 0.2 (5) |
C5—C6—C7—C2 | 0.1 (5) | C8—C9—C14—C13 | 179.3 (3) |
Cl1—C6—C7—C2 | −179.6 (2) |
Experimental details
Crystal data | |
Chemical formula | C14H12ClNO |
Mr | 245.70 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 298 |
a, b, c (Å) | 14.3693 (18), 6.0401 (8), 14.777 (2) |
β (°) | 103.911 (2) |
V (Å3) | 1244.9 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.29 |
Crystal size (mm) | 0.52 × 0.38 × 0.11 |
Data collection | |
Diffractometer | Bruker SMART APEX diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.864, 0.969 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5203, 2177, 864 |
Rint | 0.046 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.045, 0.116, 0.98 |
No. of reflections | 2177 |
No. of parameters | 154 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.15, −0.22 |
Computer programs: SMART (Bruker, 2000), SAINT (Bruker, 2000), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
Acknowledgements
The authors thank Baoji University of Arts and Sciences for support.
References
Ali, M. A., Mirza, A. H., Butcher, R. J., Tarafder, M. T. H., Keat, T. B. & Ali, A. M. (2002). J. Inorg. Biochem. 92, 141-148. CSD CrossRef PubMed Google Scholar
Bruker (2000). SMART (Version 5.0) and SAINT (Version 6.02). Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Cukurovali, A., Yilmaz, I., Özmen, H. & Ahmedzade, M. (2002). Transition Met. Chem. 27, 171-176. Web of Science CrossRef CAS 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
Tarafder, M. T. H., Jin, K. T., Crouse, K. A., Ali, A. M., Yamin, B. M. & Fun, H. K. (2002). Polyhedron, 21, 2547-2554. Web of Science CSD CrossRef CAS 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.
Schiff base compounds have been of great interest for many years. These compounds played important role in the development of coordination chemistry related to catalysis and enzymatic reactions, magnetism and molecular architectures. These properties stimulated our interest in this field. The title compound was obtained as a new antipyrine Schiff base.
Its molecular structure and a crystal packing are illustrated in Figs.1 and 2, respectively. Atom N1 is a bridging N atom linking the two parts of the compound. The dihedral angle between the two phenyl rings is 72.91 (9) °. In the crystal structure, there exists an intramolecular O—H—N hydrogen bond involving hydroxyl atom O1 and imine atom N1 (Table 1).