?-Oxalato-?2O1,O2:?2O1',O2'-bis[(?5-pentamethylcyclopentadienyl)(trifluoromethanesulfonato-?O)rhodium(III)]

In the title dinuclear rhodium complex, [(?-C2O4){(?5-C5Me5)Rh(O3SCF3)}2] or [Rh(CF3O3S)2(C10H15)2(C2O4)], the terminal trifluoromethanesulfonate ligands adopt a trans configuration with respect to each other and the Rh···Rh distances range from 5.5157(8) to 5.5389(6) Å. There are two and a half mols. within the asym. unit, one of the mols. lying on an inversion center. Interestingly, in one mol., the S-O bond of a coordinated O atom is shorter than the two S-O bonds of the non-coordinated O atoms, and the corresponding Rh-O distance is significantly longer than the other M-O distances. [on SciFinder(R)]