Synthesis, structural characterisation and luminescence studies of the first alkynyl stabilised platinum–cadmium complexes

The simple 1∶2 adduct (NBu4)2[{Pt(µ-κCα:η2- CCPh)4}(CdCl2)2] 2 containing unusual η2-alkyne Cd interactions, as well as the unexpected tetranuclear dimer (NBu4)2[{Pt(µ-κCαCα-CCPh)4}2(CdCl)2] 1 stabilised by alkynyl bridging ligands and platinum–cadmium bonding interactions, have been characterised by X-ray crystallography and their luminescence properties have been also investigated.