Heteroarylstilbenes: Visible-Light-Tunable Photochromic Systems in Water
Sudeep Koppayithodi1, Palash Jana1, Subhajit Bandyopadhyay1
1Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, Nadia, West Bengal, India 741246.
Abstract:
Visible-light switchable stilbenes with a stable Z isomer that can function in aqueous media are notably rare in the literature. The synthesis and characterization of a set of 12 novel molecules featuring an aryl-substituted heterostilbene motif, a class of visible-light switchable stilbenes, are presented here. Leveraging an electronic push-pull mechanism, strategic selection of electron donors, and an indolinium moiety as the acceptor, we achieved precise tuning of the switching wavelengths.
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