摘要
以1,10-邻菲罗啉为辅助配体,设计合成了3个二苯氨基修饰的阳离子型环金属铂(Ⅱ)配合物Ⅰ~Ⅲ。系统研究了配合物的光物理、电化学及氧传感性能。结果表明:在2-(4-二苯氨基)苯基吡啶的吡啶环的5位引入不同基团,可实现铂(Ⅱ)配合物的发光波长在544~583 nm之间调控。其中,在吡啶环的5位引入三氟甲基的阳离子型环金属铂(Ⅱ)配合物Ⅲ的最大发射波长为583 nm。氧敏感性能测试结果表明,配合物Ⅲ的氧敏感性能显著提升,其在N,N-二甲基甲酰胺(DMF)溶液中的I0/I2.17值为6.4。
Three diphenylamino modified cationic cyclometalated platinum(Ⅱ)complexesⅠ~Ⅲwere designed and synthesized with 1,10-phenanthroline as an auxiliary ligand.Their photophysical,electrochemical and oxygen sensing properties were investigated systematically.The results show that the introduction of different groups at the 5-position of the pyridine ring of 2-(4-diphenylamino)phenylpyridine can tune the emission wavelength of the platinum(Ⅱ)complexes from 544 nm to 583 nm.Among them,the cationic cyclometalated platinum(Ⅱ)complexⅢwith a trifluoromethyl group at the 5-position of the pyridine ring has a maximum emission wavelength of 583 nm.The results of oxygen sensing tests reveal that the oxygen sensitivity of the complexⅢis remarkably improved,with a value of I0/I2.17 up to 6.4 in N,N-dimethylformamide(DMF).
作者
陈玉
刘春
CHEN Yu;LIU Chun(State Key Laboratory of Fine Chemicals,Dalian University of Technology,Dalian 116024,Liaoning,China)
出处
《精细化工》
EI
CAS
CSCD
北大核心
2019年第9期1816-1820,共5页
Fine Chemicals
基金
国家自然科学基金（21776036,21421005）
关键词
阳离子型环金属铂配合物
发光氧传感
二苯氨基
1
10-邻菲罗啉
发光材料
电子化学品
cationic cyclometalated platinum(Ⅱ)complexes
luminescent oxygen sensing
diphenylamino
1,10-phenanthroline
luminescent materials
electronic chemicals
