{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/22780"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/22780","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Photoresolvable compounds: Towards a chiroptical-liquid crystalline switch","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.","abstract_html":"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.","abstract_has_math":false,"creators":["Suarez, Mauricio"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Chemistry","degree_department":null,"school":null,"contributors":["Schuster, Gary B."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-05-07T13:51:15Z","date_published":"2011-05-07T13:51:15Z","updated_at":"2026-07-22T22:25:20Z","subjects":["Chemistry, Organic","Chemistry, Physical","Physics, Optics"],"languages":["eng"],"rights":["Copyright 1995 Suarez, Mauricio"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9543738","(UMI)AAI9543738"],"render_values":[{"text":"AAI9543738","href":null,"code":true},{"text":"(UMI)AAI9543738","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/22780","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Schuster, Gary B."]},{"key":"dc:creator","label":"Author","values":["Suarez, Mauricio"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-05-07T13:51:15Z","10000-01-01","1995"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Chemistry"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Chemistry, Organic","Chemistry, Physical","Physics, Optics"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 1995 Suarez, Mauricio"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9543738","(UMI)AAI9543738","http://hdl.handle.net/2142/22780"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The tendency for miniaturization in electronic devices has created the need for materials capable of high storage densities and high switching rates. 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