C-S Bond Cleavage and C-C Coupling in Cyclopentadienylchromium Complexes To Give the First Dithiooxamide-Bridged and Doubly Dithiocarbamate-Bridged Double Cubanes: [Cp Cr S {(C(S)NEt ) }] and [Cp Cr S (S CNEt ) ].

Thermolysis of the dithiocarbamate complex 1 led to the formation of the thiocarbenoid complex 2 and two double cubanes: 3, which has an intercubane Cr-Cr bond and a dithiooxamide ligand in the μ-η ,η bonding mode, and 4, which contains two dithiocarbamate ligands in the μ-η ,η bonding mode.