Work

Reliable Determination of Photoreaction Kinetics and Cyclization/Cycloreversion Quantum Yields for Dithienylethene Switches

Year: 2025

Type: article

Abstract: A universal and flexible model fully describing photoreaction kinetics in dithienylethene (DTE) systems is presented. The proposed method enables reliable determination of photocyclization and photocycloreversion quantum yields at various conditions. Most importantly, it is applicable to a broad range of photoswitch concentrations and accounts for competitive reactions, such as annulation of the closed form. By employing both analytical and numerical solutions to the kinetic equations, we achieve consistent results: the numerical method ensures high accuracy in quantum yield determination, while the analytical method allows for the prediction of DTE photoreaction behavior. The robustness of the model was validated across four distinct DTE photoswitches under varying concentrations, solvents, excitation wavelengths conditions, demonstrating its broad applicability and reliability.

Source: Angewandte Chemie International Edition

DOI: 10.1002/anie.202514591

Authors: Jakub Drapała, Krzysztof Durka, Katarzyna N. Jarzembska, Radosław Kamiński

Institutions: Warsaw University of Technology, University of Warsaw

Language: English

Topic: Photochromic and Fluorescence Chemistry

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $5,510

Funders: Narodowe Centrum Nauki, European Regional Development Fund