Deciphering the Novel Photoreactivity of β‐Enaminones
Abstract
Abstract The mechanism of a newly discovered photochemical reaction of β‐enaminones is examined by femtosecond transient absorption spectroscopy and multistate multiconfigurational quantum chemical calculations. Our study reveals that this photochemical reaction features a previously undocumented excited‐state‐proton‐transfer (ESIPT) process. We show that this process is structurally and dynamically gated, occurring in ultrafast time domain with complex progression of β‐enaminone along three potential energy surfaces featuring two conical intersections and a singlet‐triplet crossing.
Article Details
Authors (8)
Laura M. Obloy
Center for Photochemical Sciences and Department of Chemistry Bowling Green State University Bowling Green OH 43403 USA
Lakshmy Kannadi Valloli
Center for Photochemical Sciences and Department of Chemistry
Alejandro Blanco Gonzalez
Center for Photochemical Sciences and Department of Chemistry Bowling Green State University Bowling Green OH 43403 USA
Dipti Garg
Center for Photochemical Sciences and Department of Chemistry Bowling Green State University Bowling Green OH 43403 USA
Meseret Simachew Bezabih
Department of Chemistry
Massimo Olivucci
Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy.
Alexander N. Tarnovsky
The Center for Photochemical Sciences
Jayaraman Sivaguru
Center for Photochemical Sciences and Department of Chemistry