1.In the first part of this paper, three new ligands with bis(8-hydroxyquinoline) which were substituted by methoxy, butoxy and octoxy were synthesized by Witting-Horner reaction.

1.自从1987年C.W.Tang等人报道了以8-羟基喹啉铝（Alq3）为备的高亮度电致器件以来，有机合物材料及其器件加工工艺成为有机电致领域的一个研究热点。