catena-Poly[[bis[tris(4-methoxyphenyl)phosphine-κP]silver(I)]-μ-thiocyanato-κ² N:S]

The coordination polymer, [Ag(NCS)(C 21 H 21 O 3 P) 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.