Structure of (2-benzoxazolethiolato)(triphenylphosphine)gold(I)

[Au(C7H4NOS)(C18H15P)], Mr = 609.7, monoclinic, P2(1)/n, a = 12.709 (3), b = 12.871 (4), c = 13.462 (6) A, beta = 94.64 (3) degrees, V = 2195 (2) A3, Z = 4, Dx = 1.84 g cm-3, lambda(Mo K alpha) = 0.71073 A, mu = 68.7 cm-1, F(000) = 1176, T = 296 K, final R = 0.033 for 2823 unique observed reflections. The 2-benzoxazolethiolate ligand (Sboz), which contains three potential coordination sites (N, O and S), forms a linear complex with a P-Au-S angle of 176.43 (8). The Au-P and Au-S distances are 2.258 (2) and 2.299 (2) A, respectively. This angle and these bond distances are similar to those of other phosphorous-gold-sulfur complexes such as the antiarthritic drug auranofin.