Three 1D copper(I/II) complexes of 4,6-dipyridyl-2-aminopyrimidine: Effect of the ligand isomerism on the structural motif
摘要:
Three copper(I/II) complexes [Cu-2(HL1)(2)Cl](n) (1), [Cu(H(2)L2)Cl](n) (2), and [Cu-2(H(2)L3)Cl-2](n) (3) were synthesized by the reaction of CuCl2 center dot 2H(2)O with three isomers of 4,6-dipyridyl-2-aminopyrimidine: H(2)L1, H(2)L2, and H(2)L3 under hydrothermal conditions. Although in compounds 1-3, the three ligands all exhibit bridging coordination modes, the structures of the resultant 1D polymers are very different. This result indicates that the structural motif of compounds 1-3 could be directed by the ligand isomers. (c) 2007 Elsevier B.V. All rights reserved.