Structure of tris(dicyclohexylphenylphosphine)gold(I) perchlorate

[Au(P(C6H11)2(C6H5))3][ClO4], M(r) = 1119.59, trigonal, R3c, a = 13.192(5), c = 52.83 (2) A, V = 7962 (9) A3, Z = 6, Dx = 1.401 g cm-3, lambda(Mo K alpha) = 0.71073 A, mu = 29.5 cm-1, F(000) = 3468, T = 296 K, final R = 0.047 for 1321 unique observed reflections. The Au atom in the anion and the perchlorate ion in [Au(Cy2PhP)3][ClO4] lie on a threefold axis. The complex has an almost ideal trigonal-planar geometry, with an Au--P distance of 2.421 (3) A, P--Au--P angles of 119.9 (3) degrees, and the Au atom only 0.08 (2) A out of the plane defined by the three P atoms.