Issue 9, 2017

Multi-stimuli-responsive fluorescence of a highly emissive difluoroboron complex in both solution and solid states

Abstract

A highly fluorescent emissive difluoroboron complex (TC) was designed, synthesized and characterized. The absolute fluorescence quantum yields of TC are 33.0% in the solid state and 26.0% in the solution state. The results of X-ray diffraction analysis demonstrate that the rigid structure, the intermolecular hydrogen bonding and the well-ordered as well as loose molecular packing are the major reasons for the high fluorescence emission. Moreover, the colors and fluorescence emission of TC can be switched by external stimuli including grinding and acids/bases. Powder X-ray diffraction (PXRD) investigation verifies that the crystalline–amorphous state transformation between the original and ground states might be attributed to the mechanochromic luminescence properties. The high fluorescence emission and multi-stimuli-responsive fluorescence properties reveal that TC can be used as rewritable information storage, security ink and a fluorescence indicator for acids/bases.

Graphical abstract: Multi-stimuli-responsive fluorescence of a highly emissive difluoroboron complex in both solution and solid states

Supplementary files

Article information

Article type
Paper
Submitted
14 Nov 2016
Accepted
24 Jan 2017
First published
24 Jan 2017

CrystEngComm, 2017,19, 1294-1303

Multi-stimuli-responsive fluorescence of a highly emissive difluoroboron complex in both solution and solid states

W. Fang, Y. Zhang, G. Zhang, L. Kong, L. Yang and J. Yang, CrystEngComm, 2017, 19, 1294 DOI: 10.1039/C6CE02376B

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