Anion-specific aggregation induced phosphorescence emission (AIPE) in an ionic iridium complex in aqueous media

Guangfu Li; Wei Guan; Shuang Du; Dongxia Zhu; Guogang Shan; Xiaojuan Zhu; Likai Yan; Zhongmin Su; Martin R. Bryce; Andrew P. Monkman

doi:10.1039/C5CC07187A

Anion-specific aggregation induced phosphorescence emission (AIPE) in an ionic iridium complex in aqueous media†

Guangfu Li,‡^a Wei Guan,‡^a Shuang Du,^b Dongxia Zhu,*^a Guogang Shan,^a Xiaojuan Zhu,^b Likai Yan,^a Zhongmin Su,*^a Martin R. Bryce*^c and Andrew P. Monkman^d

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* Corresponding authors

^a Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Renmin Road 5268, Changchun 130024, P. R. China
E-mail: zhudx047@nenu.edu.cn, zmsu@nenu.edu.cn

^b Key Laboratory of Molecular Epigenetics of the Ministry of Education, Institute of Cytology and Genetics, Northeast Normal University, Renmin Street No. 5268, Changchun, P. R. China
E-mail: zhuxj720@nenu.edu.cn

^c Department of Chemistry, Durham University, Durham, UK
E-mail: m.r.bryce@durham.ac.uk

^d Department of Physics, Durham University, Durham DH1 3LE, UK
E-mail: a.p.monkman@durham.ac.uk

Abstract

Efficient aggregation induced phosphorescence emission (AIPE) of an ionic Ir(III) complex occurs when the counterion (PF₆⁻) is exchanged specifically by ClO₄⁻ in aqueous media. As a result, a rapid, highly selective “turn-on” phosphorescent response to ClO₄⁻ is observed in aqueous media. These studies pave the way for a new efficient phosphorescence-based detection strategy for anions.

Chemical Communications

Anion-specific aggregation induced phosphorescence emission (AIPE) in an ionic iridium complex in aqueous media†

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Anion-specific aggregation induced phosphorescence emission (AIPE) in an ionic iridium complex in aqueous media

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