( P )-Tetra- 3 -iodido-tetrakis[(cyclohexyldiphenylphosphine-? P )silver(I)]

The title compound, [Ag4I4(C18H21P)4], has a tetra­meric structure, with the Ag and I atoms alternating in a distorted cubane-like AgI core and with cyclo­hexyl­diphenyl­phosphine ligands capping the Ag corners. Each face is distorted, such that the average Ag⋯Ag atomic separation is shorter than the average I⋯I atomic separation by about 1 A. Two symmetry-unique but structurally similar tetra­mers of the same enanti­omer are each located on a twofold rotation axis, which can be assigned the same helicity, suggesting spontaneous resolution. Three phenyl groups are each disordered over two positions; the site occupancy ratios are between ca 2:1 and 4:1.