Aggregation-induced phosphorescence of iridium(iii) complexes with 2,2′-bipyridine-acylhydrazone and their highly selective recognition to Cu2+

文献情報

出版日 2012-11-22

DOI 10.1039/C2AN36501D

インパクトファクター 4.616

著者

Na Zhao, Yu-Hui Wu, Jian Luo, Lin-Xi Shi

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要旨

Two cationic cyclometallated iridium(III) complexes with 2,2′-bipyridine-acylhydrazone were synthesized and characterized by spectroscopic and photophysical measurements. They exhibit remarkable aggregation-induced phosphorescent emission (AIPE) phenomenon which is caused by the restriction of rapid isomerization of the CN bond in the acylhydrazone moiety and are supported by TD-DFT studies. They also act as a significant ‘off–on’ luminescent switch for Cu2+ which works as both catalyzer and oxidant in the sensing process, resulting in hydrolysis and cyclization products which are highly emissive. The sensing properties of iridium(III) complexes are also investigated by ESI-MS spectrometry and 1H NMR spectroscopy.

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CiteScore: 7.8

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年間論文数: 653

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Aggregation-induced phosphorescence of iridium(iii) complexes with 2,2′-bipyridine-acylhydrazone and their highly selective recognition to Cu2+

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