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Issue 31, 2017
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Optical properties and mechanofluorochromism of new BODIPY dyes based on the pyridine–pyrimidine hybrid structure

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Abstract

A new family of BODIPY dyes (PPB1–4) based on the pyridine–pyrimidine hybrid structure has been synthesized. These dyes show high cyan fluorescence in hexane with quantum yields (Φf) ranging from 0.33 to 0.90. Interestingly, moderate fluorescence of PPB1–4 is observed in the solid state (Φf, 0.11–0.26). X-ray structure analysis demonstrates that H-aggregation should be responsible for the red-shifted and quenched emission in the solid state. Moreover, PPB1–4 show high contrast and reversible mechanochromic fluorescence based on the proposed mechanism of mechanical stimuli triggered dimer dissolution and formation. In addition, rewritable mechanochromic fluorescence recording media fabricated with PPB4 have been successfully achieved.

Graphical abstract: Optical properties and mechanofluorochromism of new BODIPY dyes based on the pyridine–pyrimidine hybrid structure

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Publication details

The article was received on 22 Jun 2017, accepted on 11 Jul 2017 and first published on 11 Jul 2017


Article type: Paper
DOI: 10.1039/C7DT02259J
Citation: Dalton Trans., 2017,46, 10332-10338
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    Optical properties and mechanofluorochromism of new BODIPY dyes based on the pyridine–pyrimidine hybrid structure

    Y. Liu, J. Duan, F. Qi, D. Tian, X. Wang, Z. Liu and W. Huang, Dalton Trans., 2017, 46, 10332
    DOI: 10.1039/C7DT02259J

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