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Dimesitylboryl Functionalised Cyanostilbene Derivatives of Phenothiazine: Distinctive Polymorphism Dependent Emission and Mechanofluorochromism

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 donor and triarylborane and cyanostilbene as acceptors. For example, 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 upon grinding or fuming process.

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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, Accepted Manuscript
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    Dimesitylboryl Functionalised Cyanostilbene Derivatives of Phenothiazine: Distinctive Polymorphism Dependent Emission and Mechanofluorochromism

    A. C, P. Malakar, J. R, P. Edamana and S. Ghosh, CrystEngComm, 2018, Accepted Manuscript , DOI: 10.1039/C8CE00250A

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