Chain and Discrete Dimer Complexes of Molybdenum(II) Trifluoroacetate Axially Coordinated by p-Quinones, [Mo2(O2CCF3)4(2,6-Me-BQ)]n (2,6-Me-BQ = 2,6-dimethyl-p-benzoquinone) and [Mo2(O2CCF3)4(2,6-t-Bu-BQ)2] (2,6-t-Bu-BQ = 2,6-di-t-butyl-p-benzoquinone)

A chain complex [Mo2(O2CCF3)4(2,6-Me-BQ)]n (2,6-Me-BQ = 2,6-dimethylbenzoquinone) and a bis p-quinone adduct complex [Mo2(O2CCF3)4(2,6-t-Bu-BQ)2] (2,6-t-Bu-BQ = 2,6-di-t-butyl-p-benzoquinone) have been prepared and characterized by X-ray crystal structure analyses, 13C-NMR spectrum, and cyclic voltammetry. The effect of alkyl groups R (= Me, t-Bu) at the 2,6-positions of the p-benzoquinone on the structures of the complexes have been discussed.