Dzyaloshinski–Moriya (D–M) oriented weak ferromagnets in isomorphic coordination architectures constructed by flexible 1,2,4-triazole-1-acetate ligands with the assistance of halogen or pseudohalogen anions
摘要:
Three isomorphic coordination complexes constructed by flexible 1,2,4-triazole-1-acetate with the assistance of halogen or pseudohalogen anions, and [Mn(L)Cl](n) (1), [Co(L)(N-3)](n) (2) and [Ni(L)(N-3)](n) (3) (L = 1,2,4-triazole-1-acetate) have been synthesized and structurally characterized. It is interesting that the linkages of the halogen anions in 1 are the same as those of the pseudohalogen anions in 2 and 3. Single crystal structure analysis indicated a novel 4,6-connected binodal net with Schlafli {3;4(2);5(3)}{3(2);4(3);5(5);6(3);7(2)) was formed in these complexes. Dominating antiferromagnetic interactions between the metal ions were detected in these complexes, furthermore evident spin canting presented in I and 3 for Dzyaloshinski-Moriya (D-M) interactions. (C) 2013 Elsevier B.V. All rights reserved.