the witting and unwitting complicity of the institutions.
各个机构间有
串通。
；有ing形式）
;;;，
多端;
;;;;the witting and unwitting complicity of the institutions.
各个机构间有串通。
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-羟基喹啉铝（Alq3）为发光层制备高亮度电致发光器件以来，有机金属配合物发光材料及其器件加工工艺成为有机电致发光领域一个研究热点。
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