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

Arivazhagan, C. ; Malakar, Partha ; Jagan, R. ; Prasad, Edamana ; Ghosh, Sundargopal (2018) Dimesitylboryl-functionalised cyanostilbene derivatives of phenothiazine: distinctive polymorphism-dependent emission and mechanofluorochromism CrystEngComm, 20 (23). pp. 3162-3166. ISSN 1466-8033

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Official URL: http://doi.org/10.1039/C8CE00250A

Related URL: http://dx.doi.org/10.1039/C8CE00250A

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.

Item Type:Article
Source:Copyright of this article belongs to The Royal Society of Chemistry.
ID Code:123810
Deposited On:18 Oct 2021 07:40
Last Modified:18 Oct 2021 07:40

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