Cyano-bridged gadolinium(iii)-tungstate(v) bimetallic assembly with a one-dimensional chain structure

Abstract

In this paper, we report the crystal structure and magnetic properties of the cyano-bridged gadolinium-tungstate bimetallic assembly, Gd^III(DMF)₆[W^V(CN)₈] (DMF = N,N-dimethylformamide). X-Ray single crystal analysis shows that this compound crystallizes in the monoclinic system of space group P2₁/c with cell constants a = 16.40(2) Å, b = 11.08(1) Å, c = 21.18(2) Å, β = 91.09(8)°, and Z = 4. The crystal consists of one-dimensional linear chains, in which [Gd^III(DMF)₆]³⁺ and [W^V(CN)₈]³⁻ ions are linked in an alternating fashion. The magnetic data show that this compound is a paramagnet with an antiferromagnetic coupling of −0.58 cm⁻¹ between Gd^III (S = 7/2) and W^V (S = 1/2).