Inorganic Chemistry, Vol.36, No.15, 3379-3381, 1997
Preparation and Molecular-Structure of the Unconventional Tantalum Chloride Complex ((Eta(5)-C9H7)(2)Tacl2)(Tacl6)
The addition of 1-(Bu3Sn)C9H7 to a dichloromethane suspension of TaCl5 results in the red crystalline species [(eta(5)-C9H7)(2)TaCl2][TaCl6]. This unique compound represents a rare example of a Ta(V) indenylmetal halide. The isolation of a diindenyl salt complex is surprising, given that all other similar cyclopentadienyl-based reactions result in molecular species of the stoichiometry (C5R5)TaX4 (R = H, alkyl; X = halide).
Keywords:CRYSTAL-STRUCTURE;NIOBIUM;DERIVATIVES;OXIDATION;CHEMISTRY;HALIDES;SYSTEMS;CATION;LIGAND;SALTS