Tuning the Ground and Excited State Dynamics of Hemithioindigo Molecular Motors by Changing Substituents.

ABSTRACT: Efficiency and performance of light triggered molecular motors are crucial features that need to be mechanistically understood to improve the performance and enable conscious property tailoring for specific applications. In this work, three different hemithioindigo-based molecular motors are investigated and all four steps in their complete unidirectional rotation are unraveled fully quantitatively. Transient absorption spectroscopy across twelve orders of magnitude in time is used to probe the fs nuclear motions up to the ms thermal kinetics, covering the timeframe of the whole motor rotation. The newly known full mechanisms allow simulation of the motor systems to scrutinize their performance at realistic illumination conditions. This highlights the importance of photoisomerization quant

SUBMITTER: Wilcken R 

PROVIDER: S-EPMC7702134 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature