A chair-piperazine bridged N,N-dimethylformamide coordinated dicopper(II/II) complex obtained via solution transformation of heterocyclic imidazolidine spacer of a new ligand

Abstract

A chair-piperazine bridged N,N-dimethylformamide coordinated dicopper(II/II) complex [Cu 2 II(μ-L)(DMF) 2](ClO 4) 2 (DMF = N,N-dimethylformamide) (2) was crystallized from the 3-phenyl substituted imidazolidine and ethoxy bridged [Cu 2 II(μ-L′)(μ-OEt)](ClO4) (1) complex synthesized from the reaction of Cu(ClO 4) 2·6H 2O, EtONa and ligand H 2L′ [2-(2′-phenyl)-1,3- bis{3′-aza-4′-(2′-hydroxyphenyl)-prop-4-en-1′-yl}-1,3 imidazolidine]. First N,N-dimethylformamide coordinated chair-piperazine bridged dicopper(II/II) complex [Cu2II(μ-L)(DMF)2](ClO4)2 was obtained following a solution transformation of the heterocyclic imidazolidine spacer of the new μ-bis(tridentate) ligand (H 2L′). © 2004 Elsevier B.V. All rights reserved.