Bis(4-butane-1,4-dithiolato)bishexacarbonyldiiron(II)(Fe-Fe)
Abstract
The novel title double-butterfly Fe/S cluster complex, Fe4(C4H8S2)2(CO)12, which is structurally similar to the active site of the Fe-only hydrogenases, contains two inversion-related Fe2S2(CO)6 subcluster cores connected by two equivalent butyl chains to afford a 16-membered macrocycle. The formation of the 16-membered macrocycle has an influence on the C-S-Fe angles, while the Fe-Fe and Fe-S bond lengths remain similar to those in related complexes.