Research Article: 2-{[(4-{[(2-Hy­droxy­phen­yl)(phen­yl)methyl­idene]amino}­but­yl)imino](phen­yl)meth­yl}phenol

Date Published: February 01, 2012

Publisher: International Union of Crystallography

Author(s): Arezoo Jamshidvand, Reza Kia, Hadi Kargar, Muhammad Nawaz Tahir.


The asymmetric unit of the title compound, C30H28N2O2, comprises half of a potential tetra­dentate Schiff base ligand; an inversion centre is situtated at the center of the butane­diamine spacer. The central methyl­ene segment of the diamine spacer is disordered over two positions with a refined site-occupancy ratio of 0.651 (7):0.349 (7). The phenyl ring and the hy­droxy-substituted benzene ring are almost perpendicular to each other, with a dihedral angle of 87.90 (8) Å. Intra­molecular O—H⋯N hydrogen bonds make S(6) ring motifs.

Partial Text

For standard bond lengths, see: Allen et al. (1987 ▶). For hydrogen bond motifs, see: Bernstein et al. (1995 ▶). For background to Schiff bases in coordination chemistry, see: Granovski et al. (1993 ▶); Kargar et al. (2009 ▶). For a related structure, see: Friscic et al. (1998 ▶).