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Issue 23, 2018
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Dimesitylboryl-functionalised cyanostilbene derivatives of phenothiazine: distinctive polymorphism-dependent emission and mechanofluorochromism

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Abstract

Organic π-conjugated compounds showing polymorphic and mechanofluorochromic (MFC) behaviors are promising candidates for many potential applications in materials chemistry. Herein, we report two distinct molecular designs based on phenothiazine as a donor and triarylborane and cyanostilbene as acceptors, for example, an acceptor–donor–acceptor system (A–D–A; compound 3) and donor–acceptor (D–A; compound 4) moieties, in which 3 exhibits polymorphism with two distinct emissions (yellow and red). The single crystal X-ray diffraction analyses of 3 clearly show two conformational isomers. The color of the emission can be altered by a grinding or fuming process.

Graphical abstract: Dimesitylboryl-functionalised cyanostilbene derivatives of phenothiazine: distinctive polymorphism-dependent emission and mechanofluorochromism

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Publication details

The article was received on 14 Feb 2018, accepted on 09 May 2018 and first published on 09 May 2018


Article type: Communication
DOI: 10.1039/C8CE00250A
Citation: CrystEngComm, 2018,20, 3162-3166
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    Dimesitylboryl-functionalised cyanostilbene derivatives of phenothiazine: distinctive polymorphism-dependent emission and mechanofluorochromism

    C. Arivazhagan, P. Malakar, R. Jagan, E. Prasad and S. Ghosh, CrystEngComm, 2018, 20, 3162
    DOI: 10.1039/C8CE00250A

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