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等人报道了以8-羟基喹啉
（Alq3）
层制备的高亮度电致器件以来，有机金属
合物材料及其器件加工工艺成有机电致
域的一个研究热点。
现问题，欢迎向我们指正。
