Journal
DYES AND PIGMENTS
Volume 160, Issue -, Pages 597-603Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2018.08.034
Keywords
Dithienylethene; NIR photochromism; Photoresponsive; Difluoroboron beta-diketonates (BF(2)bdks); Fluorescent switch
Funding
- Key Scientific Research Project of Higher Education of Henan Province [18A150012, 16A350008]
- Science and Technology Project of Henan Province [162300410008]
- Key Project Technology Research Henan Province Department Education [16B150010]
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The development of stimuli-responsive difluoroboron beta-diketonate materials has attracted more and more attention for their potential application in optoelectronics and functional bio-materials. In this study, we have designed and synthesized a novel photoresponsive dithienylethene-containing difluoroboron beta-diketonate complex 1 by Knoevenagel condensation reaction. Its structure have been confirmed by H-1 NMR, C-13 NMR and HRMS (ESI). And it exhibited solvent-dependent photophysical properties in solution before visible light irradiation. Subsequently, photochromism of 1 was investigated in solution, and it was found that 1 revealed solvent-dependent and visible light-triggered NIR photochromic behaviors. Moreover, it also displayed excellent fluorescence switching behavior and photochromism in the film state upon visible light irradiation. Accordingly, the dithienylethene 1 may be acted as a novel visible light-responsive fluorescence dyes in optoelectronic materials.
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