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Chinese Journal of Organic Chemistry >

2023 , Vol. 43 >Issue 5: 1824 - 1831

DOI: https://doi.org/10.6023/cjoc202211030

ARTICLES

Reversible Mechanofluorochromic and Data Security Protection of a Triphenylamine-Based Difluoroboron Luminescent Compound

  • Maocai Xu ,
  • Jiazhuang Tian ,
  • Yanhua Yang ,
  • Gaozhang Gou ,
  • Fumin Li ,
  • Lin Shao ,
  • Kexin Chi
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  • a Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214
    b Key Laboratory of Natural Pharmaceutical & Chemical Biology of Yunnan Province, School of Chemistry and Resources Engineering, Honghe University, Mengzi, Yunnan 661100
    c Physical and Chemical Inspection Center, Dali Institute for Food Control, Dali, Yunnan 671100
    d Chromatographic Analysis Center, Dali Institute for Food Control, Dali, Yunnan 671100
    e Shanghai AB SCIEX Analytical Instrument Trading Co., Shanghai 200335
† These authors contributed equally to this work.
* Corresponding authors. E-mail: ; ;
* Corresponding authors. E-mail: ; ;
* Corresponding authors. E-mail: ; ;

Received date: 2022-11-25

  Revised date: 2023-02-01

  Online published: 2023-03-17

Supported by

Innovation and Entrepreneurship Training Program for University Students in Yunnan Province(202111393026); Basic Research Programs of Yunnan Science and Technology Department(202101AU070060); Research Foundation for Introduced Talents of Kunming University(YJL2008); First-rate Undergraduate Major Construction Project of Chemistry in Yunnan Province

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Abstract

In order to meet the demand of data storage security in the rapid development of information, a π-conjugated triphenylamine-based difluororboron compound (PyTPABF2) was designed and successfully synthesized. PyTPABF2 held positive solvatochromism behavior, intramolecular charge transfer property, aggregation-induced emission behavior and high contrast mechanofluorochromic performance. The as-prepared powders PyTPABF2 exhibited bright green fluorescence (533 nm), which luminescent color switching to khaki (556 nm) under external mechanical stimulation, meanwhile, the color could recover to original state after fuming. The X-ray diffraction (XRD) measurement demonstrated that this phenomenon originated from the process of phase transformation between crystalline and amorphous. More importantly, PyTPABF2-based data secu-rity paper could be achieved rewritable storage of information. It was of assistance in the rational design of smart luminescent materials.

Key words： triphenylamine-based difluororboron compound; mechanofluorochromic behavior; data security protection

Cite this article

Maocai Xu , Jiazhuang Tian , Yanhua Yang , Gaozhang Gou , Fumin Li , Lin Shao , Kexin Chi . Reversible Mechanofluorochromic and Data Security Protection of a Triphenylamine-Based Difluoroboron Luminescent Compound[J]. Chinese Journal of Organic Chemistry, 2023 , 43(5) : 1824 -1831 . DOI: 10.6023/cjoc202211030

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