Issue 5, 2024

Unravelling photoisomerization dynamics in a metastable-state photoacid

Abstract

Direct access to transcis photoisomerization in a metastable state photoacid (mPAH) remains challenging owing to the presence of competing excited-state relaxation pathways and multiple transient isomers with overlapping spectra. Here, we reveal the photoisomerization dynamics in an indazole mPAH using time-resolved fluorescence (TRF) spectroscopy by exploiting a unique property of this mPAH having fluorescence only from the trans isomer. The combination of these experimental results with time-dependent density function theory (TDDFT) calculations enables us to gain mechanistic insight into this key dynamical process.

Graphical abstract: Unravelling photoisomerization dynamics in a metastable-state photoacid

Supplementary files

Article information

Article type
Paper
Submitted
14 Sep 2023
Accepted
29 Dec 2023
First published
04 Jan 2024
This article is Open Access
Creative Commons BY-NC license

Phys. Chem. Chem. Phys., 2024,26, 4062-4070

Unravelling photoisomerization dynamics in a metastable-state photoacid

Y. Ma, U. I. Premadasa, V. S. Bryantsev, A. R. Miles, I. N. Ivanov, A. Elgattar, Y. Liao and B. Doughty, Phys. Chem. Chem. Phys., 2024, 26, 4062 DOI: 10.1039/D3CP04454H

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