Structural features of [{MoO2(Lbi)}2(μ-O)] based oxomolybdenum(vi) complexes with five-coordinate molybdenum(VI)

Structural features of eight binuclear complexes with the general formula [{MoO2(Lbin)}2(μ-O)] (I–VIII) (Lbi is a bidentate chelate ligand, n = 1–8), in which the coordination number of Mo atoms is five, are considered. The parameter τ = (A–B)/60, where A and B are the greatest bond angles among the ten bond angles at the Mo atoms in coordination pentahedra, can be used as a criterion characterizing the coordination polyhedron of the molybdenum atom in complexes I–VIII. The parameter τ is zero for an ideal square pyramid and unity for an ideal trigonal bipyramid.