Trigonal symmetry of the five-co-ordinate complex of nickel(II) iodide with the tripod ligand tris-(2-diphenylphosphinoethyl)amine
Abstract
A three-dimensional X-ray analysis shows that the co-ordination polyhedron of the five-co-ordinate complex [Ni(tda)I]I is a regular trigonal-bipyramid, unlike that of the analogous complex of CoII which is a square-pyramid.