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.

自从1987年C.W.Tang等人报道了8-羟基喹啉铝（Alq3）为光层制备的电致光器件，有机金属配合物光材料及其器件加工工艺成为有机电致光领域的一个研究热点。