Controlling Dual Molecular Pumps Electrochemically

Cristian Pezzato; Minh T. Nguyen; Dong Jun Kim; Ommid Anamimoghadam; Lorenzo Mosca; J. Fraser Stoddart

doi:10.1002/anie.201803848

Controlling Dual Molecular Pumps Electrochemically

Cristian Pezzato, Minh T. Nguyen, Dong Jun Kim, Ommid Anamimoghadam, Lorenzo Mosca, J. Fraser Stoddart^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	9325-9329
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	57
Issue number	30
DOIs	https://doi.org/10.1002/anie.201803848
State	Published - Jul 20 2018

Keywords

electrochemistry
molecular machines
radicals
rotaxanes
supramolecular chemistry

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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10.1002/anie.201803848

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title = "Controlling Dual Molecular Pumps Electrochemically",

abstract = "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.",

keywords = "electrochemistry, molecular machines, radicals, rotaxanes, supramolecular chemistry",

author = "Cristian Pezzato and Nguyen, {Minh T.} and Kim, {Dong Jun} and Ommid Anamimoghadam and Lorenzo Mosca and Stoddart, {J. Fraser}",

note = "Funding Information: This work was supported by National Science Foundation (NSF; CHE-1308107) and Northwestern University (NU). The authors acknowledge the Integrated Molecular Structure Education and Research Center (IMSERC) at NU for providing access to equipment for the experiments. We would like to thank Professors D. R. Astumian and M. Frasconi for numerous helpful discussions.",

year = "2018",

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doi = "10.1002/anie.201803848",

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journal = "Angewandte Chemie - International Edition",

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T1 - Controlling Dual Molecular Pumps Electrochemically

AU - Pezzato, Cristian

AU - Nguyen, Minh T.

AU - Kim, Dong Jun

AU - Anamimoghadam, Ommid

AU - Mosca, Lorenzo

AU - Stoddart, J. Fraser

N1 - Funding Information: This work was supported by National Science Foundation (NSF; CHE-1308107) and Northwestern University (NU). The authors acknowledge the Integrated Molecular Structure Education and Research Center (IMSERC) at NU for providing access to equipment for the experiments. We would like to thank Professors D. R. Astumian and M. Frasconi for numerous helpful discussions.

PY - 2018/7/20

Y1 - 2018/7/20

N2 - 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.

AB - 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.

KW - electrochemistry

KW - molecular machines

KW - radicals

KW - rotaxanes

KW - supramolecular chemistry

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SN - 1433-7851

IS - 30

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Controlling Dual Molecular Pumps Electrochemically

Abstract

Keywords

ASJC Scopus subject areas

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