Dimeric dioxocations, (NpO2+)2, in the structure of bis(μ-2-fluorobenzoato-κ2O:O′)di-μ-oxo-bis[(2,2′-bipyridine-κ2N,N′)oxoneptunium(V)]

The centrosymmetric title compound, [(NpO2)2(C7H4FO2)2(C10H8N2)2], contains the dimeric dioxocation (NpO2+)2 in which two of the four O atoms bridge the Np atoms. Two bidentate chelating-bridging fluoro­benzoate anions link the Np atoms of the dimeric cation. The N atoms of the 2,2′-bipyridine ligand occupy two positions in the equatorial plane of the distorted penta­gonal bipyramid, forming a five-membered metallacycle.