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Controlling Dual Molecular Pumps Electrochemically
Author(s) -
Pezzato Cristian,
Nguyen Minh T.,
Kim Dong Jun,
Anamimoghadam Ommid,
Mosca Lorenzo,
Stoddart J. Fraser
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201803848
Subject(s) - chemistry , molecular machine , electrochemistry , nanotechnology , electricity , dual (grammatical number) , molecular motor , molecular switch , biochemical engineering , combinatorial chemistry , process engineering , molecule , electrode , organic chemistry , electrical engineering , materials science , art , literature , engineering
Artificial molecular machines can be operated using either physical or chemical inputs. Light‐powered motors display clean and autonomous operations, whereas chemically driven machines generate waste products and are intermittent in their motions. Herein, we show that controlled changes in applied electrochemical potentials can drive the operation of artificial molecular pumps in a semi‐autonomous manner—that is, without the need for consecutive additions of chemical fuel(s). The electroanalytical approach described in this Communication promotes the assembly of cyclobis(paraquat‐ p ‐phenylene) rings along a positively charged oligomeric chain, providing easy access to the formation of multiple mechanical bonds by means of a controlled supply of electricity.