4,4 '-Bipyridinium mu-oxo-bis(fluorodioxochromate)

Abstract

In the cation of the title compound, (C10H10N2)[ Cr2O5F2], a mirror plane passes through the N atoms of the two pyridine rings and the -C-C- bridge connecting them, while the two halves of the anion are symmetry-related across a mirror plane passing through the O atom at the centre of the anion. Chiral chains of the title compound are built up via N - (HO)-O-... and N-(HF)-F-... hydrogen bonds.