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The Malleable Excited States of Benzothiadiazole Dyes and Investigation of their Potential for Photochemical Control

preprint
submitted on 11.06.2019 and posted on 12.06.2019 by Caroline C. Warner, andrea thooft, Bryan J. Lampkin, selin demirci, Brett VanVeller

A strategy to control the efficiency of a photocleavage reaction based on changing the nature of the excited state is presented. A novel class of photoactive compounds has been synthesized by combining the classical o-nitrobenzyl scaffold with an environmentally sensitive dye, 4-amino-nitrobenzothiazole. Irradiation in a polar solvent lead to an excited state that is inoperative for photochemistry whereas excitation in a nonpolar solvent lead to an excited state that is photochemically active. A photochemical degradation appears to be the preferred process in contrast to the intended photocleavage process.

History

Email Address of Submitting Author

bvv@iastate.edu

Institution

Iowa State University

Country

USA

ORCID For Submitting Author

0000-0002-3792-0308

Declaration of Conflict of Interest

We declare no competing financial interest

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