Bis(2,4-dioxopentan-3-ido-κ²O,O′) dioxidomolybdenum(VI): a redetermination

Abstract

The title compound, [Mo(C₅H₇O₂)₂O₂] or cis-[MoO₂(acac)₂] (acac is acetylacetonate), contains a molybdenum(VI) atom coordinated by two acetylacetonate ligands and two doubly bonded oxido ligands in a distorted octahedral shape. The molecule is chiral and the asymmetric unit contains two independent molecules (one Δ, one Λ). Extensive C—H · · · O contacts are present throughout the structure. Data were collected at 100 K, providing higher precision of unit-cell parameters and atomic positions than previous determinations [Kamenar et al. (1973). Cryst. Struct. Commun. 2, 41-44.; Krasochka et al. (1975). Zh. Strukt. Khim. 16, 696–698].