STRUCTURE OF CIS-DIACETONITRILE[FERROCENYLBIS(DIPHENYLPHOSPHINE)]RHODIUM(I) PERCHLORATE ACETONITRILE SOLVATE

[Rh(C34H28FeP2)(C2H3N)2]ClO4.C2H3N, M(r) = 879.9, triclinic, P1BAR, a = 10.785 (2), b = 13.301 (2), c = 15.265 (2) angstrom, alpha = 65.73 (1), beta = 84.67 (1), gamma = 77.23 (1)degrees, V = 1946.9 (7) angstrom3, Z = 2, D(x) = 1.501, D(m) = 1.47 (5) g cm-3, lambda(Mo K-alpha-1) = 0.70926 angstrom, mu = 9.86 cm-1, F(000) = 852, T = 292 K, final R = 0.059, wR = 0.036 for 7885 reflections [I greater-than-or-equal-to 2-sigma(I)]. The geometry about the central Rh atom is a distorted square-planar configuration. The C-N distances of the acetonitrile ligands clearly indicate a triple bond. The cyclopentadienyl rings of the ferrocenyl moiety show a staggered conformation and their planes are slightly tilted with respect to each other.