Light-Driven Open−Close Motion of Chiral Molecular Scissors
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- 18 April 2003
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 125 (19) , 5612-5613
- https://doi.org/10.1021/ja034994f
Abstract
The first example of “light-driven chiral molecular scissors” (1), which consists of 1,1‘,3,3‘-tetraarylferrocene as a pivot part and azobenzene as a driving part, was synthesized. Absorption, circular dichroism (CD), and 1H NMR spectral studies on the photoinduced isomerization process of an enantiomer of 1 agreed well with a prediction by a DFT calculation, where a motion of the handles via light-driven contraction/expansion of the connecting azobenzene strap was transformed, through a pivotal motion of the ferrocene unit, into an open−close motion of the blade parts.Keywords
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