Crystal and molecular structure of bis(N-allylsalicylideneiminato)-nickel(II) and -copper(II)

Abstract

The crystal and molecular structure of title complexes have been determined by X-ray diffraction using visually estimated intensity data. The nickel compound has a= 13.965(10), b= 7.403(10), c= 8.912(9)Å, β= 99.3(9)°, Z= 2, and space group P2₁/a, while the copper compound has a= 10.871(8), b= 7.576(10), c= 27.579(7)Å, β= 127.0(8)°, Z= 4, and space group P2₁/c. The co-ordination plane in the nickel case is tilted by ca. 22° towards the salicylaldimine plane and the two salicylaldimine planes have a significant step ca. 1.02 Å at Ni. The salicylaldimine groups in the copper case are only slightly tilted relative to the co-ordination plane, which has a small tetrahedral distortion.