organic compounds
(Z)-2-[(2-Hydroxy-1-naphthyl)methyleneamino]benzonitrile
aCollege of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China
*Correspondence e-mail: jczhou@seu.edu.cn
The title compound, C18H12N2O, crystallizes in a phenol–imine tautomeric form with a Z conformation for the imine functionality. The dihedral angle between the aromatic rings is 8.98 (9)°. A strong intramolecular O—H⋯N hydrogen-bond interaction between the hydroxyl group and imine N atom occurs.
Related literature
For general properties of Schiff base compounds, see: Weber et al. (2007); Chen et al. (2008). For related structures, see: Elmali et al. (2001); Yüce et al. (2006); Petek et al. (2007).
Experimental
Crystal data
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Refinement
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Data collection: CrystalClear (Rigaku, 2005); cell CrystalClear; data reduction: CrystalClear; 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/S1600536809023708/bh2232sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809023708/bh2232Isup2.hkl
2-Aminobenzonitrile (0.59 g, 5 mmol) and 2-hydroxynaphthalene-1-carbaldehyde (0.861 g, 5 mmol) were dissolved in ethanol (25 ml). The resulting mixture was refluxed for 5 h and cooled to room temperature. The solid product was collected by filtration. Crystals suitable for X-ray diffraction studies were obtained on slow evaporation at room temperature.
The H atoms were placed geometrically and treated as riding atoms with O—H = 0.82 Å and C—H = 0.93 Å, and with Uiso(H) = 1.2Ueq(Carrier C) and Uiso(H1A) = 1.5Ueq(O1).
Data collection: CrystalClear (Rigaku, 2005); cell
CrystalClear (Rigaku, 2005); data reduction: CrystalClear (Rigaku, 2005); 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 of the title compound, showing the atomic numbering scheme. Displacement ellipsoids are drawn at the 30% probability level. |
C18H12N2O | F(000) = 568 |
Mr = 272.30 | Dx = 1.310 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2198 reflections |
a = 13.4640 (13) Å | θ = 2.7–27.5° |
b = 7.4450 (6) Å | µ = 0.08 mm−1 |
c = 15.4090 (11) Å | T = 293 K |
β = 116.660 (6)° | Block, pale yellow |
V = 1380.4 (2) Å3 | 0.20 × 0.20 × 0.20 mm |
Z = 4 |
Rigaku SCXmini diffractometer | 2706 independent reflections |
Radiation source: fine-focus sealed tube | 1803 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.056 |
Detector resolution: 13.6612 pixels mm-1 | θmax = 26.0°, θmin = 3.0° |
ω scans | h = −16→16 |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | k = −9→9 |
Tmin = 0.973, Tmax = 0.979 | l = −18→18 |
12133 measured reflections |
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)] = 0.066 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.159 | H-atom parameters constrained |
S = 1.10 | w = 1/[σ2(Fo2) + (0.0672P)2 + 0.1372P] where P = (Fo2 + 2Fc2)/3 |
2706 reflections | (Δ/σ)max < 0.001 |
190 parameters | Δρmax = 0.20 e Å−3 |
0 restraints | Δρmin = −0.18 e Å−3 |
0 constraints |
C18H12N2O | V = 1380.4 (2) Å3 |
Mr = 272.30 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 13.4640 (13) Å | µ = 0.08 mm−1 |
b = 7.4450 (6) Å | T = 293 K |
c = 15.4090 (11) Å | 0.20 × 0.20 × 0.20 mm |
β = 116.660 (6)° |
Rigaku SCXmini diffractometer | 2706 independent reflections |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | 1803 reflections with I > 2σ(I) |
Tmin = 0.973, Tmax = 0.979 | Rint = 0.056 |
12133 measured reflections |
R[F2 > 2σ(F2)] = 0.066 | 0 restraints |
wR(F2) = 0.159 | H-atom parameters constrained |
S = 1.10 | Δρmax = 0.20 e Å−3 |
2706 reflections | Δρmin = −0.18 e Å−3 |
190 parameters |
x | y | z | Uiso*/Ueq | ||
O1 | 0.22890 (15) | 0.5907 (3) | −0.07648 (12) | 0.0792 (6) | |
H1A | 0.1718 | 0.6436 | −0.0852 | 0.119* | |
N1 | 0.07487 (14) | 0.7038 (2) | −0.03712 (12) | 0.0490 (5) | |
N2 | 0.0188 (2) | 0.7966 (4) | −0.27347 (16) | 0.0894 (8) | |
C1 | 0.24373 (17) | 0.5812 (3) | 0.08450 (16) | 0.0465 (5) | |
C11 | 0.13677 (17) | 0.6610 (3) | 0.05282 (16) | 0.0459 (5) | |
H11A | 0.1105 | 0.6831 | 0.0983 | 0.055* | |
C12 | −0.03185 (17) | 0.7809 (3) | −0.07090 (15) | 0.0439 (5) | |
C13 | −0.08320 (18) | 0.8360 (3) | −0.16755 (16) | 0.0500 (6) | |
C10 | 0.30954 (17) | 0.5267 (3) | 0.18411 (16) | 0.0477 (6) | |
C6 | 0.4729 (2) | 0.3710 (3) | 0.3064 (2) | 0.0674 (7) | |
H6A | 0.5381 | 0.3068 | 0.3228 | 0.081* | |
C5 | 0.41020 (19) | 0.4302 (3) | 0.21022 (18) | 0.0550 (6) | |
C9 | 0.2793 (2) | 0.5638 (3) | 0.25909 (17) | 0.0582 (6) | |
H9A | 0.2150 | 0.6290 | 0.2451 | 0.070* | |
C2 | 0.2839 (2) | 0.5440 (3) | 0.01600 (18) | 0.0569 (6) | |
C17 | −0.08801 (19) | 0.8058 (3) | −0.01468 (16) | 0.0528 (6) | |
H17A | −0.0552 | 0.7709 | 0.0502 | 0.063* | |
C16 | −0.1922 (2) | 0.8823 (3) | −0.05539 (18) | 0.0579 (6) | |
H16A | −0.2292 | 0.8983 | −0.0175 | 0.069* | |
C14 | −0.1883 (2) | 0.9135 (3) | −0.20763 (18) | 0.0596 (7) | |
H14A | −0.2216 | 0.9502 | −0.2722 | 0.072* | |
C15 | −0.2426 (2) | 0.9355 (3) | −0.15123 (19) | 0.0605 (7) | |
H15A | −0.3133 | 0.9862 | −0.1776 | 0.073* | |
C4 | 0.4449 (2) | 0.3949 (3) | 0.1372 (2) | 0.0664 (7) | |
H4A | 0.5105 | 0.3316 | 0.1537 | 0.080* | |
C3 | 0.3859 (2) | 0.4500 (4) | 0.0453 (2) | 0.0684 (8) | |
H3A | 0.4121 | 0.4264 | −0.0001 | 0.082* | |
C18 | −0.0262 (2) | 0.8130 (4) | −0.22658 (17) | 0.0624 (7) | |
C8 | 0.3432 (2) | 0.5053 (4) | 0.35194 (19) | 0.0716 (8) | |
H8A | 0.3218 | 0.5322 | 0.4001 | 0.086* | |
C7 | 0.4394 (2) | 0.4064 (4) | 0.3755 (2) | 0.0749 (8) | |
H7A | 0.4808 | 0.3647 | 0.4386 | 0.090* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0708 (12) | 0.1177 (17) | 0.0570 (11) | 0.0071 (11) | 0.0359 (10) | −0.0072 (11) |
N1 | 0.0484 (11) | 0.0551 (12) | 0.0439 (11) | −0.0048 (9) | 0.0211 (9) | −0.0043 (9) |
N2 | 0.0851 (17) | 0.134 (2) | 0.0598 (15) | 0.0022 (16) | 0.0421 (14) | 0.0019 (14) |
C1 | 0.0461 (12) | 0.0447 (12) | 0.0530 (14) | −0.0078 (10) | 0.0259 (11) | −0.0084 (10) |
C11 | 0.0498 (13) | 0.0447 (12) | 0.0473 (13) | −0.0059 (10) | 0.0256 (11) | −0.0057 (10) |
C12 | 0.0428 (12) | 0.0450 (12) | 0.0449 (12) | −0.0070 (10) | 0.0205 (10) | −0.0072 (10) |
C13 | 0.0498 (13) | 0.0542 (14) | 0.0475 (13) | −0.0075 (11) | 0.0232 (11) | −0.0025 (11) |
C10 | 0.0461 (12) | 0.0406 (12) | 0.0559 (14) | −0.0069 (10) | 0.0224 (11) | −0.0025 (10) |
C6 | 0.0505 (14) | 0.0529 (15) | 0.083 (2) | 0.0003 (12) | 0.0163 (15) | 0.0074 (14) |
C5 | 0.0471 (13) | 0.0417 (12) | 0.0716 (17) | −0.0036 (11) | 0.0227 (13) | −0.0049 (12) |
C9 | 0.0552 (14) | 0.0652 (16) | 0.0542 (15) | 0.0035 (12) | 0.0244 (12) | 0.0035 (12) |
C2 | 0.0525 (14) | 0.0638 (16) | 0.0570 (15) | −0.0058 (12) | 0.0269 (12) | −0.0093 (12) |
C17 | 0.0563 (14) | 0.0571 (15) | 0.0495 (13) | −0.0069 (12) | 0.0278 (11) | −0.0025 (11) |
C16 | 0.0577 (15) | 0.0566 (15) | 0.0701 (17) | −0.0052 (12) | 0.0383 (13) | −0.0092 (13) |
C14 | 0.0609 (15) | 0.0595 (15) | 0.0537 (15) | −0.0002 (12) | 0.0214 (13) | 0.0031 (12) |
C15 | 0.0502 (14) | 0.0540 (15) | 0.0726 (18) | 0.0010 (11) | 0.0233 (13) | −0.0023 (13) |
C4 | 0.0489 (14) | 0.0572 (16) | 0.092 (2) | 0.0015 (12) | 0.0304 (15) | −0.0130 (14) |
C3 | 0.0612 (16) | 0.0731 (19) | 0.084 (2) | −0.0025 (14) | 0.0443 (15) | −0.0200 (15) |
C18 | 0.0610 (15) | 0.0807 (19) | 0.0448 (14) | −0.0019 (14) | 0.0231 (12) | 0.0029 (13) |
C8 | 0.0692 (17) | 0.085 (2) | 0.0578 (16) | 0.0000 (16) | 0.0261 (14) | 0.0081 (14) |
C7 | 0.0678 (18) | 0.0729 (19) | 0.0686 (18) | 0.0019 (14) | 0.0169 (15) | 0.0185 (15) |
O1—C2 | 1.324 (3) | C5—C4 | 1.423 (3) |
O1—H1A | 0.8200 | C9—C8 | 1.368 (3) |
N1—C11 | 1.296 (3) | C9—H9A | 0.9300 |
N1—C12 | 1.412 (3) | C2—C3 | 1.423 (3) |
N2—C18 | 1.139 (3) | C17—C16 | 1.377 (3) |
C1—C2 | 1.412 (3) | C17—H17A | 0.9300 |
C1—C11 | 1.426 (3) | C16—C15 | 1.378 (3) |
C1—C10 | 1.444 (3) | C16—H16A | 0.9300 |
C11—H11A | 0.9300 | C14—C15 | 1.374 (3) |
C12—C17 | 1.394 (3) | C14—H14A | 0.9300 |
C12—C13 | 1.393 (3) | C15—H15A | 0.9300 |
C13—C14 | 1.390 (3) | C4—C3 | 1.340 (4) |
C13—C18 | 1.439 (3) | C4—H4A | 0.9300 |
C10—C9 | 1.414 (3) | C3—H3A | 0.9300 |
C10—C5 | 1.423 (3) | C8—C7 | 1.390 (4) |
C6—C7 | 1.355 (4) | C8—H8A | 0.9300 |
C6—C5 | 1.408 (3) | C7—H7A | 0.9300 |
C6—H6A | 0.9300 | ||
C2—O1—H1A | 109.5 | O1—C2—C3 | 117.6 (2) |
C11—N1—C12 | 123.63 (18) | C1—C2—C3 | 119.9 (2) |
C2—C1—C11 | 119.5 (2) | C16—C17—C12 | 119.8 (2) |
C2—C1—C10 | 118.8 (2) | C16—C17—H17A | 120.1 |
C11—C1—C10 | 121.64 (19) | C12—C17—H17A | 120.1 |
N1—C11—C1 | 122.3 (2) | C15—C16—C17 | 121.3 (2) |
N1—C11—H11A | 118.8 | C15—C16—H16A | 119.4 |
C1—C11—H11A | 118.8 | C17—C16—H16A | 119.4 |
C17—C12—C13 | 118.5 (2) | C15—C14—C13 | 119.6 (2) |
C17—C12—N1 | 124.8 (2) | C15—C14—H14A | 120.2 |
C13—C12—N1 | 116.66 (19) | C13—C14—H14A | 120.2 |
C14—C13—C12 | 121.0 (2) | C14—C15—C16 | 119.8 (2) |
C14—C13—C18 | 119.6 (2) | C14—C15—H15A | 120.1 |
C12—C13—C18 | 119.4 (2) | C16—C15—H15A | 120.1 |
C9—C10—C5 | 117.0 (2) | C3—C4—C5 | 122.0 (2) |
C9—C10—C1 | 123.3 (2) | C3—C4—H4A | 119.0 |
C5—C10—C1 | 119.6 (2) | C5—C4—H4A | 119.0 |
C7—C6—C5 | 120.9 (3) | C4—C3—C2 | 121.0 (2) |
C7—C6—H6A | 119.6 | C4—C3—H3A | 119.5 |
C5—C6—H6A | 119.6 | C2—C3—H3A | 119.5 |
C6—C5—C4 | 121.4 (2) | N2—C18—C13 | 179.3 (3) |
C6—C5—C10 | 120.0 (2) | C9—C8—C7 | 121.1 (3) |
C4—C5—C10 | 118.6 (2) | C9—C8—H8A | 119.4 |
C8—C9—C10 | 121.1 (2) | C7—C8—H8A | 119.4 |
C8—C9—H9A | 119.5 | C6—C7—C8 | 119.8 (3) |
C10—C9—H9A | 119.5 | C6—C7—H7A | 120.1 |
O1—C2—C1 | 122.4 (2) | C8—C7—H7A | 120.1 |
Experimental details
Crystal data | |
Chemical formula | C18H12N2O |
Mr | 272.30 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 13.4640 (13), 7.4450 (6), 15.4090 (11) |
β (°) | 116.660 (6) |
V (Å3) | 1380.4 (2) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.20 × 0.20 × 0.20 |
Data collection | |
Diffractometer | Rigaku SCXmini diffractometer |
Absorption correction | Multi-scan (CrystalClear; Rigaku, 2005) |
Tmin, Tmax | 0.973, 0.979 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 12133, 2706, 1803 |
Rint | 0.056 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.066, 0.159, 1.10 |
No. of reflections | 2706 |
No. of parameters | 190 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.20, −0.18 |
Computer programs: CrystalClear (Rigaku, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
References
Chen, Z. H., Morimoto, H., Matsunaga, S. & Shibasaki, M. (2008). J. Am. Chem. Soc. 130, 2170–2171. Web of Science CSD CrossRef PubMed CAS Google Scholar
Elmali, A., Elerman, Y. & Svoboda, I. (2001). Acta Cryst. C57, 485–486. Web of Science CSD CrossRef CAS IUCr Journals Google Scholar
Petek, H., Albayrak, Ç., Ağar, E., Ískeleli, N. O. & Şenel, İ. (2007). Acta Cryst. E63, o810–o812. Web of Science CSD CrossRef IUCr Journals Google Scholar
Rigaku (2005). CrystalClear. Rigaku Corporation, Tokyo, Japan. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Weber, B., Tandon, R. & Himsl, D. (2007). Z. Anorg. Allg. Chem. 633, 1159–1162. Web of Science CSD CrossRef CAS Google Scholar
Yüce, S., Albayrak, Ç., Odabaşoğlu, M. & Büyükgüngör, O. (2006). Acta Cryst. C62, o389–o393. Web of Science CSD CrossRef 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.
Schiff base compounds have received considerable attention for many years because these compounds play an important role in coordination chemistry related to magnetism (Weber et al., 2007) and catalysis (Chen et al., 2008).Our group is interested in the synthesis and preparation of Schiff bases. Here, we report the synthesis and crystal structure of the title compound.
Figure 1 shows an ORTEP plot of the title compound. The molecule adopts the phenol–imine tautomeric form with a strong intramolecular O—H···N hydrogen bond. The C11N1 and C2—O1 bond lengths [1.296 (3) and 1.324 (3) Å, respectively] are comparable to corresponding values observed in a similar phenol–imine tautomeric structures (e.g. Petek et al., 2007), while different geometry is observed in the case of zwitterionic molecules (Elmali et al., 2001; Yüce et al., 2006). Phenyl and naphthalyl rings, A (C12···C17) and B (C1···C10), are, of course, planar, and the dihedral angle between them is 8.98 (9)°. The molecule displays a trans configuration about the central CN imine bond. Molecules are packed in the crystal at van der Waals distances.