摘要
采用微波辐射方法,由2-苯基喹喔啉(PQ)与水合三氯化铱(IrCl3·H2O)反应,合成了一种新型三环喹喔啉铱配合物[Ir(PQ)3](PQ=2-苯基喹喔啉),通过1HNMR、元素分析和质谱方法对配合物进行了表征,并研究了配合物的紫外吸收光谱和光致发光光谱。结果表明,配合物Ir(PQ)3在476nm和607nm处存在单线态1MLCT(金属到配体的电荷跃迁)和三线态3MLCT的吸收;在625nm处有较强的金属配合物三线态的磷光发射,是一种新型红色三线态磷光材料。
A novel cyclometalated iridium (III) quinoxaline complex with the formula Ir (PQ)3 (PQ=2- phenylquinoxaline) was prepared by microwave assisted synthesis. The complex was characterized by elemental analysis, ^1H NMR and mass spectroscopy. The complex showed strong ^1MLCT (singlet metal to ligand charge- transfer) and 3MLCT (triplet metal to ligand charge-transfer) absorption at 476 nm and 607 nm, respectively. It also showed strong photoluminescence at 625 nm at room temperature. The results suggested the complex be a promising triplet phosphorescent material.
出处
《精细化工中间体》
CAS
2009年第2期50-52,共3页
Fine Chemical Intermediates
基金
湖南省自然科学基金项目(06JJ2038)
关键词
金属铱配合物
微波合成
光致发光
iridium quinoxaline complex
microwave-assisted synthesis
photoluminescence