Issue 20, 2015

Fluorene-based novel gold(i) complexes with aggregation-induced emission (AIE) or aggregate fluorescence change characteristics: from green to white emission

Abstract

In this paper, five fluorene-based gold(I) complexes are synthesized and characterized. They exhibit typical aggregation-induced emission (AIE) properties or significant aggregate fluorescence change behaviors. Their thin-film and solid state fluorescence spectra are consistent with the luminescence of all luminogens in DMF–H2O mixtures with high water content. The emission color changes with different numbers of fluorene units. Among them, it is remarkable that luminogens 4 and 5 emit a bright white light in the thin-film and solid state. In addition, their thin-film absolute fluorescence quantum yields are also investigated. The results indicate the luminogen 4 gold(I) complex, with three fluorene units, exhibits the highest thin-film emission quantum yield, which is up to 65.42%.

Graphical abstract: Fluorene-based novel gold(i) complexes with aggregation-induced emission (AIE) or aggregate fluorescence change characteristics: from green to white emission

Supplementary files

Article information

Article type
Paper
Submitted
21 nov 2014
Accepted
26 jan 2015
First published
26 jan 2015

RSC Adv., 2015,5, 15341-15349

Fluorene-based novel gold(I) complexes with aggregation-induced emission (AIE) or aggregate fluorescence change characteristics: from green to white emission

Z. Chen, X. Han, J. Zhang, D. Wu, G. Yu, J. Yin and S. H. Liu, RSC Adv., 2015, 5, 15341 DOI: 10.1039/C4RA14972F

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