Crystal and molecular structure of bis-(N-n-hexyl-7-methylsalicylaldiminato)copper(II)

Abstract

The crystal structure of the title compound has been determined by Fourier methods from X-ray diffraction photographic data. Crystals are monoclinic, space group P2/c, with Z= 2 in a unit cell of dimensions: a= 7·760(2), b= 15·909(5), c= 10·605(7)Å, β= 100·8°(3). The structure was refined by least squares to R 0·102 for 1390 independent reflections. The configuration around the copper ion is square planar. The dihedral angle between the mean planes of the benzene and chelate rings is 2·5°. The co-ordination plane is tilted 38° from the benzene, 37° from the salicylaldimine, and 15° from the n-hexyl planes. The molecular geometry is as expected, although some steric effects may be due to the presence of the N-hexyl and 7-methyl groups.