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

Research output: Contribution to journalArticlepeer-review

41 Scopus citations


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 languageEnglish (US)
Pages (from-to)9325-9329
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number30
StatePublished - Jul 20 2018


  • electrochemistry
  • molecular machines
  • radicals
  • rotaxanes
  • supramolecular chemistry

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)


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