ja304424t_si_001.cif (29.85 kB)
Ruthenium-Vinylhelicenes: Remote Metal-Based Enhancement and Redox Switching of the Chiroptical Properties of a Helicene Core
dataset
posted on 2012-09-26, 00:00 authored by Emmanuel Anger, Monika Srebro, Nicolas Vanthuyne, Loïc Toupet, Stéphane Rigaut, Christian Roussel, Jochen Autschbach, Jeanne Crassous, Régis RéauIntroducing metal-vinyl ruthenium moieties onto [6]helicene
results
in a significant enhancement of the chiroptical properties due to
strong metal–ligand electronic interactions. The electro-active
Ru centers allow the achievement of the first purely helicene-based
redox-triggered chiroptical switches. A combination of electrochemical,
spectroscopic, and theoretical techniques reveals that the helicene
moiety is a noninnocent ligand bearing a significant spin density.
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