Co-ordination chemistry of scandium. Part I. Complexes of scandium(III) chloride and thiocyanate with 2,2′-bipyridyl and 1,10-phenanthroline

Abstract

The reactions of scandium(III) chloride and thiocyanate with 2,2′-bipyridyl (bipy) and 1,10-phenanthroline (phen) have been investigated. Conductivity and i.r. studies suggest that scandium(III) is hexaco-ordinated in all the complexes, and the products can be formulated as [ScL₃](CNS)₃ and [ScL₂X₂]X (L = bipy, phen; X = CNS^–, Cl^–) For the latter species, the chlorides possess cis(C₂) molecular symmetry, while the thiocyantes have been obtained with both cis and trans(D_2h) symmetries.