Details

Autor(en) / Beteiligte

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

Titel

Controlling Dual Molecular Pumps Electrochemically

Ist Teil von

• Angewandte Chemie International Edition, 2018-07, Vol.57 (30), p.9325-9329

Auflage

International ed. in English

Ort / Verlag

Germany: Wiley Subscription Services, Inc

Erscheinungsjahr

2018

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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. All hands to the pump: Controlled‐potential electrolysis drives the simultaneous operation of artificial molecular pumps in solution, without the generation and accumulation of waste products. In this electrochemical approach, molecular machines power the synthesis of discrete enthalpically and entropically demanding [n]rotaxanes, which can be made progressively and repetitively through the controlled supply of electricity.