منابع مشابه
Chiroptical switches: applications in sensing and catalysis.
Chiroptical switches have found application in the detection of a multitude of different analytes with a high level of sensitivity and in asymmetric catalysis to offer switchable stereoselectivity. A wide range of scaffolds have been employed that respond to metals, small molecules, anions and other analytes. Not only have chiroptical systems been used to detect the presence of analytes, but al...
متن کاملChiral imides as potential chiroptical switches: synthesis and optical properties
A series of chiral aromatic imides and diimides were synthesized and their electrochemical, absorption, fluorescent, and chiroptical properties were examined for their potential application as molecular chiroptical switches. These compounds exhibit strong UV–vis absorptions, and can be electrochemically reduced to radical anions that absorb in the near infrared (NIR) region. Further reduction t...
متن کاملHelicene-Based Chiral Auxiliaries and Chirogenesis
Helicenes are unique helical chromophores possessing advanced and well-controlled spectral and chemical properties owing to their diverse functionalization and defined structures. Specific modification of these molecules by introducing aromatic rings of differing nature and different functional groups results in special chiroptical properties, making them effective chiral auxiliaries and supram...
متن کاملEnantiospecific photoresponse of sterically hindered diarylethenes for chiroptical switches and photomemories
Light-driven transcription, replication and enzyme catalysis are critically dependent upon a delicate transfer between molecular and supramolecular chirality. Chemists have well realized the impressive stereospecificity over many thermally accessible cycloaddition with chiral catalysts, but making light work in the enantiomer control of diarylethene photocyclization has proved to be more challe...
متن کاملIsoindolinone-based molecular switches.
Switches are frequently used to provide external control over the conformation and function of organic and bio-organic molecules. While the use of bistable switches is widespread, multi-stable examples are observed relatively rarely. Reported here is a new class of molecular switch that is capable of forming three stable states of varied geometries, two of which can be induced to interconvert r...
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ژورنال
عنوان ژورنال: Comptes Rendus Chimie
سال: 2016
ISSN: 1631-0748
DOI: 10.1016/j.crci.2015.06.014