A ruthenium(II) complex with environment-responsive dual emission and its application in the detection of cysteine/homocysteine

Dalton Transactions : an International Journal of Inorganic Chemistry
Huili ChenRuichun Bai

Abstract

A ruthenium polypyridine complex [Ru(phen)(2)(IPBA)](PF(6))(2) (complex 1) (IPBA = 4-(1H-imidazo[4,5-f][1,9]phenanthroline-2-yl)benzaldehyde), which displays environment-responsive dual emissive properties, was designed and synthesized. In aprotic solvent, such as DMSO, DMF or CH(3)CN, the complex emits strong cyan light. When in protic solvent, it emits orange light. Similarly, the response of the complex to homocysteine and cysteine (Hcy/Cys) also shows obvious solvent dependence. TDDFT calculations reveal that the protonation of imidazole nitrogen in protic solution is responsible for the luminescent red shift. Hence, the complex could be used to detect Hcy/Cys in aprotic solvent, as well as in protic solvent.

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Citations

Feb 26, 2015·Analytical Chemistry·Chuantao HouAihua Liu
Jul 14, 2017·Angewandte Chemie·Cai-Xia YinRobert M Strongin
Sep 21, 2017·Luminescence : the Journal of Biological and Chemical Luminescence·Guoping ChaiYanfu Huan
Apr 6, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Steve Po-Yam LiKenneth Kam-Wing Lo
May 25, 2013·Chemical Society Reviews·Caixia YinSidian Li
Oct 30, 2013·Organic & Biomolecular Chemistry·Lingliang LongChi Zhang
Sep 12, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Zhiqiang YeJingli Yuan

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