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Visible-Light-Driven Tunable Molecular Motors Based on Oxindole.

ABSTRACT: Molecular rotary motors based on oxindole which can be driven by visible light are presented. This novel class of motors can be easily synthesized via a Knoevenagel condensation, and the choice of different upper halves allows for the facile tuning of their rotational speed. The four-step rotational cycle was explored using DFT calculations, and the expected photochemical and thermal isomerization behavior was confirmed by NMR, UV/vis, and CD spectroscopy. These oxindole motors offer attractive prospects for functional materials responsive to light.

SUBMITTER: Roke D

PROVIDER: S-EPMC6509644 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature

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Visible-Light-Driven Tunable Molecular Motors Based on Oxindole.

Roke Diederik D Sen Metin M Danowski Wojciech W Wezenberg Sander J SJ Feringa Ben L BL

Journal of the American Chemical Society 20190425 18

Molecular rotary motors based on oxindole which can be driven by visible light are presented. This novel class of motors can be easily synthesized via a Knoevenagel condensation, and the choice of different upper halves allows for the facile tuning of their rotational speed. The four-step rotational cycle was explored using DFT calculations, and the expected photochemical and thermal isomerization behavior was confirmed by NMR, UV/vis, and CD spectroscopy. These oxindole motors offer attractive ...[more]

PMID: 31017421

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