Zinc(II) Complexes with Dangling Functional Organic Groups

Abstract

Zinc(II) complexes with dangling functional organic groups were synthesized by reaction of zinc acetate with a series of bifunctional <i>p</i>-substituted benzene derivatives (a combination of carboxylate, oximate, amino, β-ketoimine, and salicylaldime groups). Selective coordination to carboxylate groups was observed when the second functional group was an oxime or β-ketoimine group. When the second group was an amine or salicylaldimine moiety, these groups were additionally coordinated. From the reaction with <i>p</i>-aminobenzoic acid, the compound [Zn₂(OOCCH₃)(OOC-C₆H₄-NH₂)₃]_∞ was crystallized. It is a three-dimensional coordination polymer with bridging aminobenzoate ligands.