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A New Luminescent Ruthenium(II) Polypyridine‐derived Dipicolylamine Complex as a Sensor for Cu 2+ Ions
Author(s) -
Li Xianghong,
Chen Yuanbing,
Meng Jiahe,
Lü Kangle,
Zhang Aiqing,
Zhang Bingguang
Publication year - 2011
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201180338
Subject(s) - chemistry , ruthenium , luminescence , quenching (fluorescence) , selectivity , amine gas treating , fluorescence , photochemistry , ion , bipyridine , metal ions in aqueous solution , ligand (biochemistry) , metal , inorganic chemistry , crystallography , organic chemistry , catalysis , biochemistry , physics , receptor , optoelectronics , quantum mechanics , crystal structure
A chemo‐sensor [Ru(bpy) 2 (bpy‐DPF)](PF 6 ) 2 ( 1 ) (bpy=2,2′‐bipyridine, bpy‐DPF=2,2′‐bipyridyl‐4,4′‐bis( N , N ‐di(2‐picolyl))formylamide) for Cu 2+ using di(2‐picolyl)amine (DPA) as the recognition group and a ruthenium(II) complex as the reporting group was synthesized and characterized successfully. It demonstrates a high selectivity and efficient signaling behavior only for Cu 2+ with obvious red‐shifted MLCT (metal‐to‐ligand charge transfer transitions) absorptions and dramatic fluorescence quenching compared with Zn 2+ and other metal ions.