True square planar [M{N(SePiPr2)2-Se,Se′}2] [M = Sn, Se] complexes. An extraordinary geometrical arrangement for well known centers [Sn(ii), Se(ii)]
Abstract
The syntheses and molecular structures of [M{N(SePiPr2)2-Se,Se′}2] [M = Sn (2), Se (3)] are described, these complexes consist of discrete, monomeric molecules featuring MSe4 cores that comprise true square-planar geometries.