Synthesis and reactivity of mixed-ring indenyl complexes of molybdenocene

The complex [IndCpMo(NCMe)2][BF4]2 provides a suitable entry to the synthesis of IndCpMoX2 (X = Br, Me) and [IndCpMo(κ2-BPz4)]BF4. Asymmetric complexes like IndCpMoCl(Me), [IndCpMoCl(Me)]BF4 and IndCpMo(SPh)(Me) were also prepared. These mixed ring indenyl complexes were characterized by elemental analysis, IR and 1H NMR spectroscopy, and examined by cyclic voltammetry.