Work

Light-driven molecular pumps: entanglement of thermodynamic and kinetic effects in the photocontrolled threading–unthreading of pseudorotaxanes

Year: 2025

Type: article

Abstract: isomer, it does not destabilize the pseudorotaxane. Hence, such a decoupling challenges a core design requirement for photoinduced molecular pumps - namely, the light-induced modulation of both energy barriers and binding affinities. Our results underscore the critical role of electronic and spatial proximity between the photoisomerizable unit and the ring recognition site in achieving coupled kinetic and thermodynamic control. These insights provide refined design principles for the development of efficient light-driven molecular pumps based on modular supramolecular motifs.

Source: Organic & Biomolecular Chemistry

DOI: 10.1039/d5ob01154j

Authors: Brian Sachini, Chiara Taticchi, Massimo Baroncini, Stefano Corra, Alberto Credi

Institutions: Institute of Organic Synthesis and Photoreactivity, University of Bologna

Language: English

Topic: Supramolecular Chemistry and Complexes

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: hybrid

Funders: European Commission, Università di Bologna, H2020 European Research Council

Awards: Light effected autonomous molecular pumps: Towards active transporters and actuating materials, G4235567188