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Chernikova EY, Berdnikova DV, Fedorov YV, et al. Light-induced piston nanoengines: ultrafast shuttling of a styryl dye inside cucurbit[7]uril. Phys Chem Chem Phys. 2017;19(38):25834-25839doi: 10.1039/c7cp04283c.
Chernikova, E. Y., Berdnikova, D. V., Fedorov, Y. V., Fedorova, O. A., Maurel, F., & Jonusauskas, G. (2017). Light-induced piston nanoengines: ultrafast shuttling of a styryl dye inside cucurbit[7]uril. Physical chemistry chemical physics : PCCP, 19(38), 25834-25839. https://doi.org/10.1039/c7cp04283c
Chernikova, Ekaterina Y, et al. "Light-induced piston nanoengines: ultrafast shuttling of a styryl dye inside cucurbit[7]uril." Physical chemistry chemical physics : PCCP vol. 19,38 (2017): 25834-25839. doi: https://doi.org/10.1039/c7cp04283c
Chernikova EY, Berdnikova DV, Fedorov YV, Fedorova OA, Maurel F, Jonusauskas G. Light-induced piston nanoengines: ultrafast shuttling of a styryl dye inside cucurbit[7]uril. Phys Chem Chem Phys. 2017 Oct 04;19(38):25834-25839. doi: 10.1039/c7cp04283c. PMID: 28944396.
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Phys Chem Chem Phys. 2017 Oct 04;19(38):25834-25839. doi: 10.1039/c7cp04283c.

Light-induced piston nanoengines: ultrafast shuttling of a styryl dye inside cucurbit[7]uril.

Physical chemistry chemical physics : PCCP

Ekaterina Y Chernikova, Daria V Berdnikova, Yuri V Fedorov, Olga A Fedorova, François Maurel, Gediminas Jonusauskas

Affiliations

  1. A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova str. 28, 119991 Moscow, Russia. [email protected].

PMID: 28944396 DOI: 10.1039/c7cp04283c

Abstract

The combination of photoactive styryl(pyridinium) dyes and cucurbit[7]uril (CB[7]) in an integrated supramolecular system allowed us to design a novel high speed molecular machine based on the fully reversible shuttling motion of the dye inside the CB[7] host cavity. The driving force of this movement is the electrostatic potential change after the occurrence of intramolecular charge transfer in the excited state of the dye molecule that can be externally controlled by light. Steady-state and time-resolved optical spectroscopy as well as DFT calculations provided an unambiguous evidence for the ultrafast piston-like movement of the system between two states. The shuttling process occurs in the picosecond timescale and its bistability depends on the strength of the dye donor fragment.

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