A1 Journal article (refereed)
Efficient Conversion of Light to Chemical Energy : Directional, Chiral Photoswitches with Very High Quantum Yields (2020)
Herges, R., Moorman, W., Tellkamp, T., Stadler, E., Röhricht, F., Naether, C., Puttreddy, R., Rissanen, K., & Gescheidt, G. (2020). Efficient Conversion of Light to Chemical Energy : Directional, Chiral Photoswitches with Very High Quantum Yields. Angewandte Chemie, 59(35), 15081-15086. https://doi.org/10.1002/anie.202005361
JYU authors or editors
Publication details
All authors or editors: Herges, Rainer; Moorman, Widukind; Tellkamp, Tobias; Stadler, Eduard; Röhricht, Fynn; Naether, Christian; Puttreddy, Rakesh; Rissanen, Kari; Gescheidt, Georg
Journal or series: Angewandte Chemie
ISSN: 1433-7851
eISSN: 1521-3773
Publication year: 2020
Volume: 59
Issue number: 35
Pages range: 15081-15086
Publisher: Wiley-VCH Verlag
Publication country: Germany
Publication language: English
DOI: https://doi.org/10.1002/anie.202005361
Publication open access: Openly available
Publication channel open access: Partially open access channel
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/68794
Abstract
Photochromic systems have been used to achieve a number of engineering functions such as light energy conversion, molecular motors, pumps, actuators, and sensors. Key to p rac tical applications is a high efficiency in conversion of light to chemical energy, a rigid structure for the trans mission of force to the environment and directed motion during isomerization. We present a novel type of photochromic system (diindane diazocines), that converts visible light with an efficiency of 18% to chemical energy. Quantum yields are exceptionally high with >70% for the cis‐trans isomerization and 90% for the back‐reaction and thus higher than the biochemical system rhodopsin (64%). Two diastereomers ( meso and rac emate) were obtained in only two steps in high yields. Both isomers are directional switches with high conversion rates (76‐99%). No fatigue was observed after several thousands of switching cycles in both systems.
Keywords: photochemistry
Free keywords: diazocine; energy conversion; photochemistry; photochromism; quantum yields
Contributing organizations
Ministry reporting: Yes
Reporting Year: 2020
JUFO rating: 3
