A new descriptor tool enabling to qualitatively identify excited-state potential energy regions with high decay probability is here disclosed and applied to analyze a photoinduced ring-opening reaction already well characterized from the experimental and theoretical point of view. The analysis based on such descriptor allows one to highlight a high probability of excited-state deactivation within the Franck–Condon region, in agreement with experiments, and to qualitatively indentify the main mechanisms providing efficient pathways of photoreactivity.

A qualitative model to identify non-radiative decay channels: the spiropyran as case study

REGA, NADIA;
2016-01-01

Abstract

A new descriptor tool enabling to qualitatively identify excited-state potential energy regions with high decay probability is here disclosed and applied to analyze a photoinduced ring-opening reaction already well characterized from the experimental and theoretical point of view. The analysis based on such descriptor allows one to highlight a high probability of excited-state deactivation within the Franck–Condon region, in agreement with experiments, and to qualitatively indentify the main mechanisms providing efficient pathways of photoreactivity.
2016
Density-based indexes
Non-radiative decay channel
Spyropiran
TD-DFT
Physical and Theoretical Chemistry
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14246/2898
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