Structural characterisation of heterometallic platinum complexes with non-transition metals. Part I: heterodimeric complexes

This review covers 90 heterodimeric Pt complexes with non-transition metals. There are 13 non-transition metals (Ge, Sn, Pb, Ga, In, Tl, Sb, Zn, Cd, Hg, Na, K and Ca). These dimers can be divided into three groups, the first in which only a direct Pt-M bond connects respective units (59%); the second in which in additon to a direct Pt-M bond a ligand/s serves as bridge/s (33%); and the third one in which two respective units are held together via bridge/s ligand/s. The mean Pt-M bond distance elongates in the sequence: 2.425 Å (M=Ge) <2.559 Å (Sb) <2.601 Å (In) <2.625 Å (Cd) <2.657 Å (Hg) <2.663 Å (Sn) <2.670 Å (Pb) <2.674 Å (Tl) <2.760 Å (Zn)