STRUCTURES OF ADDUCTS FORMED BY INDIUM(III) HALIDES AND PHOSPHINE-LIGANDS - TRIS[1,2-BIS(DIPHENYLPHOSPHINO)ETHANE]BIS[TRIIODOINDIUM(III)] AND TRICHLOROBIS(TRIMETHYLPHOSPHINE)INDIUM(III)

{Mu-[1,2-Bis(diphenylphosphino)ethane]-1-kappa-P:2-kappa-P'}-bis[1,2-bis(diphenylphosphino)ethane]-1-kappa-P,2-kappa-P-bis[triiodoindium(III)], [(InI3)2(C26H24-P2)3], (1), M(r) = 2186.4, triclinic, P1BAR, a = 12.583 (7), b = 12.667 (8), c = 13.080 (8) angstrom, alpha = 76.59 (4), beta = 86.72 (4), gamma = 79.34 (4)-degrees, V = 1993 (2) angstrom 3, Z = 1, D(x) = 1.82 g cm-3, Mo K-alpha radiation, lambda = 0.71069 angstrom, mu = 30.3 cm-1, F(000) = 1046, T = 290 K, R = 0.066 for 5203 unique observed [I/sigma(I) greater-than-or-equal-to 2.0] reflections. [InCl3(C3H9P)2], (2), M(r) = 373.3, orthorhombic, Pnma, a = 10.418 (8), b = 10.769 (9), c = 13.808 (9) angstrom, V = 1549 (2) angstrom 3, Z = 4, D(x) = 1.60 g cm-3, Mo K-alpha radiation, lambda = 0.71069 angstrom, mu = 21.9 cm-1, F(000) = 736, T = 290 K, R = 0.043 for 1247 unique observed [I/sigma(I) greater-than-or-equal-to 2.0] reflections. The In atoms in both (1) and (2) have five-coordinate, approximately trigonal bipyramidal, environments. (1) contains 1,2-bis(diphenylphosphino)-ethane ligands acting in two ways: one ligand bridging between the two In atoms (bidentate) and two ligands bonded to only one In atom each (monodentate). (1) is the first example of a trigonal bipyramidal type structure for an InI3 complex. The two trimethylphosphine ligands in (2) occupy the axial positions.