Magnetic canting or not? Two isomorphous 3D Co~(II) and Ni~(II) coordination polymers with the rare non-interpenetrated (10,3)-d topological network, showing spin-canted antiferromagnetism only in the Co~(II) system

摘要

The in situ solvothermal reaction of 3,4-dicyano-1,2,5-thiadia-zole with MCl_2 (M = Co, Ni) and NaOH afforded two isomorphous complexes, [M_2(L)_2(H_2O)_2], (L = 2,1,3-thiadia-zole-4,5-dicarboxylate), which exhibit a rare non-interpenetrated (10,3)-d (utp) network topology and interesting magnetic behaviors: spin-canted antiferromagnetism for the Co~(II) complex, but simple antiferromagnetic coupling for the Ni~(II).