A Metallocene-Complexed Dibismuthene: Cp2Zr(BiR)2 (Cp = C5H5; R = C6H3-2,6-Mes2).

The article reports on the synthesis of a metallocene-complexed dibismuthene. Although zirconocene dichloride may be best known as a critical component in homogeneous Ziegler-Natta catalytic systems, zirconocene derivatives also show promise in disparate processes, such as nitrogen fixation, where, notably, dinitrogen interacts side-on with zirconium. While similar side-on zirconocene-coordinated diphosphene derivatives have been described, the corresponding zirconocene-complexed heavier dipnictenes like diarsene, distibene, or dibismuthene are unknown.