摘要
在微波辅助加热下,4,4′-二氟-2,3-二苯基喹喔啉(DPQF)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(DPQF)3],通过1HNMR、元素分析和质谱方法对配合物结构进行了表征,并研究了配合物的吸收光谱和光致发光光谱。结果表明,配合物Ir(DPQF)3在391和453 nm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618 nm处有较强的金属配合物三线态的磷光发射,是一种新型红色磷光材料。
A new cyclometalated iridium(Ⅲ) quinoxaline complex with the formula Ir(DPQF)3(DPQF=4,4′-difluoro-2,3-diphenylquinoxaline) was prepared by reaction of DPQF with iridium trichloride hydrate under microwave irradiation.The complex was characterized by elemental analysis,1HNMR,and mass spectroscopy.The complex showed strong 1MLCT(singlet metal to ligand charge-transfer) and 3MLCT(triplet metal to ligand charge-transfer) absorption at 391 nm and 453 nm,respectively.The complex also showed strong photoluminescence at 618 nm at room temperature.These test results suggest the complex to be a promising phosphorescent material.
出处
《化学试剂》
CAS
CSCD
北大核心
2011年第2期111-113,共3页
Chemical Reagents
基金
辽宁省自然科学基金资助项目(20051023)
关键词
磷光材料
喹喔啉铱配合物
三线态
微波合成
phosphorescent material
iridium quinoxaline complex
triplet
microwave-assisted synthesis
