A New Phosphorescent Cyclometalated Iridium(III) Complex for the Selective Detection of Silver(I) Ion

被引:2
|
作者
Tong, Bihai [1 ]
Qiang, Jia-Yan [1 ]
Xu, Ya-Qing [1 ]
Mei, Qunbo [2 ]
Chen, Qun [3 ]
Leung, Wa-Hung [4 ]
Zhang, Qian-Feng [1 ,3 ]
机构
[1] Anhui Univ Technol, Inst Mol Engn & Appl Chem, Coll Met & Resources, Maanshan 243002, Anhui, Peoples R China
[2] Nanjing Univ Posts & Telecommun NUPT, Jiangsu Key Lab Organ Elect & Informat Displays, Inst Adv Mat IAM, Nanjing 210046, Jiangsu, Peoples R China
[3] Changzhou Univ, Dept Appl Chem, Sch Petrochem Engn, Changzhou 213164, Jiangsu, Peoples R China
[4] Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China
基金
中国国家自然科学基金;
关键词
Cyclometalated complex; Iridium; Silver; Photoluminescence; Selective chemosensor; NANOPARTICLES; PHOTOPHYSICS; HG2+;
D O I
10.1007/s10953-012-9889-1
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A new cyclometalated iridium(III) complex, Ir(ppz)(2)(dtp) (Ir1) (ppzH = 4-phenylphthalazinone, dtp = diethyl dithiophosphate), has been synthesized and characterized by single-crystal X-ray diffraction. The photoluminescence spectrum of Ir1 shows an emission maximum at 597 nm and its quantum yield is ca. 0.072. Complex Ir1 exhibits a strong and fast decrease of emission upon addition of Ag+ in aqueous media. The ratio of Ir1 responding to Ag+ was determined to be 1:1 by UV-Vis absorption and phosphorescent emission measurements. Complex Ir1 is a highly selective chemosensor for Ag+ over other transition metal ions.
引用
收藏
页码:1600 / 1609
页数:10
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