Helicene-based chiroptical switches

作者：Helena Isla, Jeanne Crassous · 发表于：Comptes Rendus Chimie · 年份：2016 · DOI：10.1016/j.crci.2015.06.014 · 被引用次数：184 · 研究领域：Synthesis and Properties of Aromatic Compounds、Photochromic and Fluorescence Chemistry、Photoreceptor and optogenetics research

Helicenes are molecules with ortho -fused aromatic rings that adopt an inherently chiral helical shape. This helical topology combined with the extended π-conjugated system provides them with excellent chiroptical and photophysical properties. These properties and peculiarities make helicenes important candidates for the conception of new chiroptical switches. Several examples of light-, redox- and pH-triggered helicene-based switches have recently appeared in the literature including examples from our group. Some of them are multi-input and/or multi-output systems in which the changes can be triggered by different stimuli and/or read-out by different techniques, an attractive advantage for functional materials.