{[Ti](CCSiMe3)2}Ag(OClO3) π-tweezer units bridged by pyrazine

The synthesis and characterization of the pyrazine-bridged tweezer complex [{[Ti](CCSiMe3)2}Ag(OClO3)]2pz (4) and bimetallic {[Ti](CCSiMe3)2}Ag(OClO3)(pz) (3) {[Ti]=(η5-C5H4SiMe3)2-Ti; pz=1,4-pyrazine, C4H4N2} is discussed. The solid-state structure of 4 is reported. The structure of 4 consists of two heterobimetallic titanium–silver tweezer fragments of type {[Ti](μ–σ, π-CCSiMe3)2}Ag(OClO3) which are spanned by pyrazine. Each silver(I) ion is thereby tetra-coordinated by two π-coordinated alkynes and the datively bound pyrazine and OClO3 moieties. Cyclic voltammetric studies of 3 and 4 are reported.