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Issue 10, 2019
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Branching effect on triphenylamine-CF3 cyanostilbenes: enhanced emission and aggregation in water

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Abstract

Six linear and branched α-cyanostilbene derivatives bearing a triphenylamine donor and an electron withdrawing trifluoromethyl group on the phenyl ring and a cyano acceptor on the double bond were synthesized and examined for their absorption and emission properties in solution and the solid state. The molecules exhibit characteristic solvatochromic emission and aggregation induced emission in water. Interesting absorption and emission changes were observed upon branching with the third arm exerting a negligible effect. Dropcast SEM images of these molecules in water reveal unique morphological features with the formation of uniform structures. The triply branched triphenylamine forms a stable organogel aided by intermolecular interactions. The results are substantiated using DFT calculations.

Graphical abstract: Branching effect on triphenylamine-CF3 cyanostilbenes: enhanced emission and aggregation in water

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Publication details

The article was received on 21 Nov 2018, accepted on 01 Feb 2019 and first published on 04 Feb 2019


Article type: Paper
DOI: 10.1039/C8NJ05907A
New J. Chem., 2019,43, 4106-4115

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    Branching effect on triphenylamine-CF3 cyanostilbenes: enhanced emission and aggregation in water

    B. Kumari, S. P. Singh, R. Santosh, A. Dutta, S. S. Mallajosyula, S. Ghosal and S. Kanvah, New J. Chem., 2019, 43, 4106
    DOI: 10.1039/C8NJ05907A

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