Three mixed donor acyclic ligands bearing heterocyclic moieties as terminal groups has been prepared by the reaction of 8 mercaptoquinoline sodium salt with 1
5 dibromo 4 oxapentane
1
8 dibromo 3
6 dioxaoctane and 2 chloromethylpyridine as the low molecular weight blue copper protein modeling compounds. The reaction and properties of their copper(Ⅱ) complexes have been primarily investigated.