Octa-μ₃-selenido-penta­kis­(tri­ethyl­phos­phane-κP)(tri­methyl­aceto­nitrile-κN)-octa­hedro-hexa­rhenium(III) bis­(hexa­fluorido­anti­monate) tri­methyl­aceto­nitrile monosolvate

The crystal structure of the title compound, [Re₆Se₈{NCC(CH₃)₃}(Et₃P)₅](SbF₆)₂·NCC(CH₃)₃, contains a face-capped octa­hedral [Re₆(μ₃-Se)₈]²⁺ cluster core. The pseudo-centrosymmetric [Re₆Se₈]²⁺ cluster core is bonded through the Re atoms to five tri­ethyl­phosphane ligands and one tri­methyl­aceto­nitrile ligand. No significant interactions are observed between the cationic cluster, the SbF₆⁻ anions and the trimethylacetonitrile solvent molecule.