A1 Journal article (refereed)
Efficient Conversion of Light to Chemical Energy : Directional, Chiral Photoswitches with Very High Quantum Yields (2020)


Herges, Rainer; Moorman, Widukind; Tellkamp, Tobias; Stadler, Eduard; Röhricht, Fynn; Naether, Christian; Puttreddy, Rakesh; Rissanen, Kari; Gescheidt, Georg (2020). Efficient Conversion of Light to Chemical Energy : Directional, Chiral Photoswitches with Very High Quantum Yields. Angewandte Chemie, 59 (35), 15081-15086. DOI: 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: http://doi.org/10.1002/anie.202005361

Open Access: Open access publication published in a hybrid 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

Preliminary JUFO rating: 3


Last updated on 2020-28-10 at 08:51