catena-Poly[hemi[bis(4′-phenyl-2,2′:6′,2′′-terpyridine-κ3N)copper(II)] [cuprate(I)-di-μ2-thiocyanato-κ2N:S;κ2S:N]]

Abstract

Reaction of 4′-phenyl-2,2′:6′,2′′-terpyridine (phtpy), copper acetate hydrate and ammonium thiocyanate under solvothermal conditions led to the formation of the title compound, {[Cu(C21H15N3)2][Cu2(NCS)4]}n. The structure is composed of discrete [Cu(phtpy)2]2+ cations and polymeric anionic {[Cu(SCN)2]−} chains propagating along [010]. The central Cu2+ ion in the cation is coordinated by two tridentate chelating phtpy ligands in a distorted octahedral geometry. In each of the two crystallographically independent centrosymmetric anions, the CuI atoms are bridged in a 1,3-μ2-bridging mode by two S and two N atoms, resulting in a distorted tetrahedral CuN2S2 coordination. The [Cu(phtpy)2]2+ cations are fixed between these polymers by intermolecular C—H...S hydrogen bonds.