Self-assembly of one-dimensional coordination polymer from nickel(II) macarocyclic complex and 2,6-pyridinedicarboxylate ligand

摘要

The reaction of [Ni(L)(H_2O)_2]Cl_2 (L = 2,5,9,12-tetramethyl-1,4,8,11-tetraazacyclotetradecane) with 2,6-pyridinedicarboxylate (pdc) generates one-dimensional coordination polymer [Ni(L)(pdc)]·H_2O (1). In the polymeric framework, the nickle(II) ion has an octahedral geometry and is bridged by two pdc ligands. The magnetic susceptibility measurement for 1 exhibits a weak antiferromagnetic interaction (J = -1.04(3) cm~(-1); H = -JEMPSIONS_i·S_(i+1)) between the S =1 nickle(II) paramagnetic centers.