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Title:Photoresolvable compounds: Towards a chiroptical-liquid crystalline switch
Author(s):Suarez, Mauricio
Doctoral Committee Chair(s):Schuster, Gary B.
Department / Program:Chemistry
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Chemistry, Organic
Chemistry, Physical
Physics, Optics
Abstract:The tendency for miniaturization in electronic devices has created the need for materials capable of high storage densities and high switching rates. There has been ample effort in bringing this miniaturization to the molecular level, i.e. the design of molecular switches. The possibility of using photons to address a switch at an specific site in a volume has motivated research in photoresponsive compounds. An interesting family of photoresponsive compounds are those that are sensitive to the sense of chirality of light. Compounds capable of photoresolution can be switched between a scalemic and a racemic state, this can be the basis for a chiroptical switch. Important parameters to control in the design of a photoresolvable compound are the optical properties that determine the degree of enantiomeric excess that one can attain at the photostationary state, the g value. Two strategies to increase the g value were investigated: exciton coupling and energy transfer. Energy transfer was shown to be an efficient strategy in the design of photoresolvable compounds. Specifically, a compound capable of generating a reversible enantiomeric excess of 0.4% has been design using this strategy. The implications of photoresolvable compounds in the creation of a chiroptical liquid crystalline switch are discussed.
Issue Date:1995
Rights Information:Copyright 1995 Suarez, Mauricio
Date Available in IDEALS:2011-05-07
Identifier in Online Catalog:AAI9543738
OCLC Identifier:(UMI)AAI9543738

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