ArticleChemical science2021
Effect of charge-transfer enhancement on the efficiency and rotary mechanism of an oxindole-based molecular motor.
Article in Chemical science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- Strategies towards designing visible and near-infrared light driven molecular motors.Chemical Society reviews · 2026Review
- Acid- and Nucleophile-Gated Photoisomerization of Phosphaindirubin.Angewandte Chemie (International ed. in English) · 2026Article
- Solvent-Dependent Ultrafast Photochemical Dynamics ofThe journal of physical chemistry. A · 2025Article
- Unidirectional molecular rotary motor with remotely switchable rotation direction.Science advances · 2025Article
- Computational Study on the Dynamics of a Bis(benzoxazole)-Based Overcrowded Alkene.The journal of physical chemistry. A · 2025Article
- Probing the Hidden Photoisomerization of a Symmetric Phosphaalkene Switch.Angewandte Chemie (International ed. in English) · 2025Article
- Excited State Dynamics in Unidirectional Photochemical Molecular Motors.Journal of the American Chemical Society · 2024Review
- Stepwise Operation of a Molecular Rotary Motor Driven by an Appel Reaction.Journal of the American Chemical Society · 2024Article
- A visible-light-driven molecular motor based on barbituric acid.Chemical science · 2023Article
- Accounts of applied molecular rotors and rotary motors: recent advances.Nanoscale advances · 2023Review
- Effect of Temperature on Photoisomerization Dynamics of a Newly Designed Two-Stroke Light-Driven Molecular Rotary Motor.International journal of molecular sciences · 2022Article
- A molecular motor from lignocellulose.Green chemistry : an international journal and green chemistry resource : GC · 2022Article
- Controllable photomechanical bending of metal-organic rotaxane crystals facilitated by regioselective confined-space photodimerization.Nature communications · 2022Article
- Controlling rotary motion of molecular motors based on oxindole.Organic chemistry frontiers : an international journal of organic chemistry · 2022Article
- Design and Nonadiabatic Photoisomerization Dynamics Study of a Three-Stroke Light-Driven Molecular Rotary Motor.International journal of molecular sciences · 2022Article
- Coupled- and Independent-Trajectory Approaches Based on the Exact Factorization Using the PyUNIxMD Package.Topics in current chemistry (Cham) · 2022Review
- Designing light-driven rotary molecular motors.Chemical science · 2021Review
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Harvesting energy and converting it into mechanical motion forms the basis for both natural and artificial molecular motors. Overcrowded alkene-based light-driven rotary motors are powered through sequential photochemical and thermal steps. The thermal helix inversion steps are well characterised and can be manipulated through adjustment of the chemical structure, however, the insights into the photochemical isomerisation steps still remain elusive. Here we report a novel oxindole-based molecular motor featuring pronounced electronic push-pull character and a four-fold increase of the photoisomerization quantum yield in comparison to previous motors of its class. A multidisciplinary approach including synthesis, steady-state and transient absorption spectroscopies, and electronic structure modelling was implemented to elucidate the excited state dynamics and rotary mechanism. We conclude that the charge-transfer character of the excited state diminishes the degree of pyramidalisation at the alkene bond during isomerisation, such that the rotational properties of this oxindole-based motor stand in between the precessional motion of fluorene-based molecular motors and the axial motion of biomimetic photoswitches.
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