A planar Zn4P4 ring in the first structurally characterised zinc diorganophosphide: [Zn2(But2P)2(OH)(µ-OH)]2

The first structurally characterised zinc diorganophosphide, [Zn2(But2P)2(OH)(µ-OH)]2, is a tetramer with a novel eight-memebered planar ring structure.