Light triggers molecular shuttling in rotaxanes: control over proximity and charge recombination

Journal article


Publication Details

Author(s): Wolf M, Ogawa A, Bechtold M, Vonesch M, Wytko JA, Oohora K, Campidelli S, Hayashi T, Guldi DM, Weiss J
Journal: Chemical Science
Publication year: 2019
Volume: 10
Journal issue: 13
Pages range: 3846-3853
ISSN: 2041-6520


Abstract

We present the synthesis of novel rotaxanes based on mechanically interlocked porphyrins and fullerene and their advanced investigations by means of photophysical measurements. To this end, a fullerene-capped dumbbell-type axle containing a central triazole was threaded through strapped (metallo) porphyrins-either a free-base or a zinc porphyrin. Femtosecond-resolved transient absorption measurements revealed charge-separation between the porphyrin and fullerene upon light excitation. Solvent polarity and solvent coordination effects induced molecular motion of the rotaxanes upon charge separation and enabled, for the first time, subtle control over the charge recombination by enabling and controlling the directionality of shuttling.


FAU Authors / FAU Editors

Bechtold, Mareike
Lehrstuhl für Physikalische Chemie I
Guldi, Dirk Michael Prof. Dr.
Lehrstuhl für Physikalische Chemie I
Wolf, Maximilian
Lehrstuhl für Physikalische Chemie I


External institutions with authors

École Polytechnique - Université Paris-Saclay
Osaka University
Université de Strasbourg (UDS)


How to cite

APA:
Wolf, M., Ogawa, A., Bechtold, M., Vonesch, M., Wytko, J.A., Oohora, K.,... Weiss, J. (2019). Light triggers molecular shuttling in rotaxanes: control over proximity and charge recombination. Chemical Science, 10(13), 3846-3853. https://dx.doi.org/10.1039/c8sc05328f

MLA:
Wolf, Maximilian, et al. "Light triggers molecular shuttling in rotaxanes: control over proximity and charge recombination." Chemical Science 10.13 (2019): 3846-3853.

BibTeX: 

Last updated on 2019-21-07 at 07:58