Conformational Switching of π-Conjugated Junctions from Merocyanine to Cyanine States by Solvent Polarity

Angewandte Chemie
Alhama Arjona-EstebanFrank Würthner

Abstract

Directed by the solvent polarity, the prevalent conformation of a polymethine dye bearing a branched π-conjugated junction can be switched from a heptamethine donor-acceptor (DA) merocyanine-type π-conjugated system to a nonamethine DAD cyanine-type π-conjugated scaffold. Concomitantly the absorption maximum shifts from 585 nm in dichloromethane to 748 nm in methanol solution.

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Citations

Aug 25, 2016·Analytical Chemistry·Liqiang WangYou-Nian Liu
Mar 30, 2017·Methods and Applications in Fluorescence·Alexander A Ishchenko, Andrii V Kulinich
May 28, 2019·Angewandte Chemie·Syed Muhammad UsamaKevin Burgess
Jun 16, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·James SherwoodJames H Clark
Jul 27, 2018·ACS Applied Materials & Interfaces·Yang-Hui LuoBai-Wang Sun

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