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Organogels composed of trifluoromethyl anthryl cyanostyrenes: enhanced emission and self-assembly

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Abstract

A series of α-cyanostyrenes bearing anthracene and electron withdrawing trifluoromethyl units were designed and synthesized. The α-cyanostyrene skeleton favors aggregation induced enhanced emission behavior due to the restriction of intramolecular rotations. Remarkably, the anthryl cyanostyrenes bearing simple trifluoromethyl (CF3) substituents form stable organogels with enhanced fluorescence emission compared to their solution state. In water, the CF3 substituted anthrylstyrenes self-assemble into entangled fibrous nano/microstructures through intermolecular H-bonding, π–π stacking and cyano substituent interactions. The morphological features of the aggregates and the gels were substantiated using scanning electron microscopy, TEM, and powder XRD measurements. The stability of the gels was assessed using rheology investigations.

Graphical abstract: Organogels composed of trifluoromethyl anthryl cyanostyrenes: enhanced emission and self-assembly

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Publication details

The article was received on 29 Sep 2017, accepted on 19 Jan 2018 and first published on 22 Jan 2018


Article type: Paper
DOI: 10.1039/C7PP00362E
Citation: Photochem. Photobiol. Sci., 2018, Advance Article
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    Organogels composed of trifluoromethyl anthryl cyanostyrenes: enhanced emission and self-assembly

    J. Katla, A. J. M. Nair, A. Ojha and S. Kanvah, Photochem. Photobiol. Sci., 2018, Advance Article , DOI: 10.1039/C7PP00362E

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