STRUCTURE OF TRANS-DICHLOROTETRAKIS(DIMETHYL SULFOXIDE)RHODIUM(III) TETRAFLUOROBORATE

(OC-6-13)-Dichlorobis(dimethyl sulfoxide-O)bis(dimethyl sulfoxide-S)rhodium(III) tetrafluoroborate, [RhCl2(C2H6OS)4]BF4, M(r) = 573-15, triclinic, P1BAR, a = 9.178 (4), b = 10.459 (3), c = 11.194 (5) angstrom, alpha = 92.71 (2), beta = 96.77 (2), gamma = 91.43 (2)-degrees, V = 1065.4 (7) angstrom3, Z = 2, D(x) = 1.787 g cm-3, lambda(Mo K-alpha) = 0.7107 angstrom, mu-(Mo K-alpha) = 14.6 cm-1, F(000) = 576, T = 294 K, R = 0.032, wR = 0.042 for 4017 unique observed reflections. The structure of the cation is characterized by a trans-Cl octahedral coordination around the metal atom. Two of the four dimethyl sulfoxide (dmso) ligands are O-bonded to the Rh atom, the others are S-bonded, with O-dmso trans to S-dmso. Average bond distances are: Rh-Cl, 2.327 (4); Rh-S, 2.259 (7); Rh-O, 2.0798 (8) angstrom.