A Dimeric η ,η -Germole Dianion Bridged Titanium(III) Complex with a Multicenter Ti-Ge-Ge-Ti Bond

Dimeric germole dianion bridged Ti and Zr complexes have been synthesized. In these complexes, the germole dianion adopts a formal η ,η coordination to the two metal centers. The bonding situation in these bridged dimers is dominated by a covalent Ge-Ge interaction that results, for example, in a strong antiferromagnetic coupling of the d Ti centers.