Two novel CPs with double helical chains based rigid tripodal ligands: Syntheses, crystal structures, magnetic susceptibility and fluorescence properties

摘要

Two three-dimensional coordination polymers (CPs), namely [Cd(bpydb)-(H(2)bpydb)](n)center dot 0.5nH(2)O (1), and [Cu-2(bpydb)(2)](n) (2) (2,6-di-p-carboxyphenyl-4,4'- bipyridine1 = H(2)bpydb), containing a novel double-helical chains, which have been solvothermal synthesized, characterized, and structure determination. CPs 1-2 reveal the new (3,5)-net and (3,6)-net alb topology, respectively. The fluorescence properties of CPs 1-2 were investigated, and magnetic susceptibility measurements indicate that compound 1 has dominating antiferromagnetic couplings between metal ions. (C) 2016 Elsevier B.V. All rights reserved.