Light-Driven Controllable Cis-trans Isomerization in a Cycloparaphenylene Dimer Bridged by 9,9′-Bifluorenylidene

Dongmei Zhang; Kai Lan; Xiaobo Zhang; Jiyong Jiang; Chuyang Cheng

doi:10.1039/d6cc00869k

January 1, 2026Chemical Communications

Light-Driven Controllable Cis-trans Isomerization in a Cycloparaphenylene Dimer Bridged by 9,9′-Bifluorenylidene

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Key Points

This research aims to explore light-driven isomerization mechanisms in a cycloparaphenylene dimer.
Synthesis of a cycloparaphenylene dimer linked by 9,9'-bifluorenylidene
Investigation of photoisomerization under light exposure
Analysis of bidirectional photo-switching using photoacid catalysis
Successful synthesis of stable isomers shown to undergo photoisomerization
Demonstration of bidirectional photo-switching process
Characterization of the effect of light on the isomerization rates

Implication

This work demonstrates bidirectional photo-switching through isomerization in a cycloparaphenylene dimer, suggesting potential applications in molecular devices.

Abstract

This work reports the synthesis and distinct photoisomerization of configurationally stable isomers of a cycloparaphenylene (CPP) dimer, bridged by a 9,9′-bifluorenylidene linker. Bidirectional photo-switching is achieved: a synergistic photoacid-catalyzed process...

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Cite This Study

Zhang et al. (2026) studied this question.

synapsesocial.com/papers/69c37b62b34aaaeb1a67dc7b https://doi.org/10.1039/d6cc00869k

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Light-Driven Controllable Cis-trans Isomerization in a Cycloparaphenylene Dimer Bridged by 9,9′-Bifluorenylidene

Key Points

Implication

Abstract

Discussion

Cite This Study

Light-Driven Controllable Cis-trans Isomerization in a Cycloparaphenylene Dimer Bridged by 9,9′-Bifluorenylidene

Key Points

Implication

Abstract

Discussion

Cite This Study

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