Catena-Poly[[bis[tris(4-methoxyphenyl)phosphine-κP]silver(I)]-μ-thiocyanato-κ²N:S]

The coordination polymer, [Ag(NCS)(C21H21O3P)2]n or {[Ag(P(4-OMePh)3)2]-μ-NCS}n, features μ-thiocyanato ligands bridging between neighbouring silver(I) atoms, generating chains along the b-axis direction. Each Ag^I atom is four-coordinate, with two phosphorus donors from two distinct tris(p-methoxyphenyl)phosphine ligands, and two atoms from the thiocyanato ligands in severely distorted tetrahedral shape. The Ag - P [2.4331(6) and 2.4625(5)Å], Ag - N [2.339(2)Å] and Ag - S [2.6760(6)Å] bond lengths all appear within the expected ranges, with corresponding P - Ag - P and S - Ag - N angles of 129.610(19) and 86.75(6)°. In the crystal, the polymeric chains pack into layers parallel to (001) separated by the aryl groups of the phosphine ligands.