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Issue 3, 2015
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Red emissive diarylboron diketonate crystals: aggregation-induced color change and amplified spontaneous emission

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Abstract

Two novel diarylboron diketonates 1 and 2 were synthesized by the reaction of 1,3-diaryl-β-diketone with triphenylborane or fluorobis(pentafluorophenyl)borane. The synthesized boron-containing compounds exhibit intense greenish-blue or green emissions in solution but red fluorescence in crystals, showing an aggregation-induced colour change characteristic. Notably, the flake-like crystals of 1 and 2 show an evidently narrowed emission when irradiated by a pulsed laser beam and thus provide the first example of amplified spontaneous emission based on four-coordinate organoboron solids. This finding indicates the potential of four-coordinate boron species in organic solid lasing and thus may expand the application area of boron-containing materials.

Graphical abstract: Red emissive diarylboron diketonate crystals: aggregation-induced color change and amplified spontaneous emission

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Publication details

The article was received on 15 Sep 2014, accepted on 01 Nov 2014 and first published on 05 Nov 2014


Article type: Paper
DOI: 10.1039/C4TC02070G
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Citation: J. Mater. Chem. C, 2015,3, 499-505

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    Red emissive diarylboron diketonate crystals: aggregation-induced color change and amplified spontaneous emission

    L. Wang, Z. Zhang, X. Cheng, K. Ye, F. Li, Y. Wang and H. Zhang, J. Mater. Chem. C, 2015, 3, 499
    DOI: 10.1039/C4TC02070G

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