Metallosupramolecular zinc and cadmium complexes of Bis[4-(2-pyridyl)pyrimidinylthiomethyl]benzenes
摘要:
Reactions of L-1 and L-2 (L-1 = 1,4-bis[4-(2-pyridyl)pyrimidinylthiomethyl] benzene; L-2 = 1,3-bis[4-(2-pyridyl)pyrimidinylthiomethyl]benzene) with Cdl(2), Znl(2) and Cd(NO3)(2) led to the formation of two discrete bimetallic complexes and one single-handed helix, respectively. Conformation changes of ligands after interactions with metal salts were found due to the positional isomerism of xylyl groups and the effect of anions. (C) 2008 Elsevier B.V. All rights reserved.