The title compound, [Co(C17H14P)2]BF4, was obtained by the anion exchange of 1,1′-bis(diphenylphosphino)cobaltocenium chloride with sodium tetrafluoroborate. Both the cation and anion lie on crystallographic twofold axes which run through the CoIII ion, and both the B atom and one F atom of the anion, respectively. Three of the F atoms of the BF4− anion are disordered equally over two sites. The two diphenylphosphine ligands are trans to each other with respect to the CoIII ion. T...
