Conformational influences in copper co-ordination compounds. Part V. Crystal and molecular structure of {1,2-bis-[(2-aminobenzylidene)-amino]propanato(2–)}copper(II)

Abstract

Crystals of the title compound are orthorhombic, space group P2₁2₁2₁ with a= 9·096(2), b= 24·551 (9), and c= 7·159(3)Å, Z= 4. The molecular structure was solved by the heavy-atom method and refined to an R 0·076 for 1068 diffractometer data. There is an ‘umbrella-shaped’ molecule with a disordered 1,2-propane bridge. It is argued that this result is unexpected and indicative of electronic, rather than steric, demands. The Cu atom is four-co-ordinate, mean Cu–N 1·91 Å.