Fluorenylidene−Pyrroline Biomimetic Light-Driven Molecular Switches
datasetposted on 03.07.2009 by Laura Rivado-Casas, Diego Sampedro, Pedro J. Campos, Stefania Fusi, Vinicio Zanirato, Massimo Olivucci
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A new family of biomimetic photoactivated molecular switches based in the retinal chromophore is described. Expedient synthesis allows a library of compounds with a different substitution pattern, including chiral substituents, to be obtained. The effect of substitution, solvent, and light source on the photoisomerization step has been assessed. The absorption maximum has been red-shifted ca. 50 nm with respect to related systems and rotation is now easily achieved by using visible light.