{"id":{"repo_id":"unt","oai_identifier":"info:ark/67531/metadc2896"},"canonical_url":"https://search.dev.ndltd.org/etd/unt/info:ark/67531/metadc2896","repository":{"repo_id":"unt","name":"University of North Texas","base_url":"https://digital.library.unt.edu/oai/"},"display":{"title":"Synthesis and properties of novel cage-functionalized crown ethers and cryptands.","abstract":"A novel cryptand was synthesized which contained a 3,5-disubstituted-4- oxahexacyclo[5.4.1.02,6.03,10.05,9.08,11] dodecane \"cage\" moiety. In alkali metal picrate extraction experiments the cryptand exhibited high avidity towards Rb+ and Cs+, when compared with the corresponding model compound. A computational study of a series of cage-functionalized cryptands and their alkali metal-complexes was performed. The X-ray crystal structure of a K+-complexed bis-cage-annulated 20-crown-6 was obtained. The associated picrate anion was found to be intimately involved in stabilization of the host-guest complex. The interaction energy between the host-guest complex and picrate anion has been calculated, and the energy thereby obtained has been corrected for basis set superposition error.","abstract_html":"A novel cryptand was synthesized which contained a 3,5-disubstituted-4- oxahexacyclo[5.4.1.02,6.03,10.05,9.08,11] dodecane "cage" moiety. In alkali metal picrate extraction experiments the cryptand exhibited high avidity towards Rb+ and Cs+, when compared with the corresponding model compound. A computational study of a series of cage-functionalized cryptands and their alkali metal-complexes was performed. The X-ray crystal structure of a K+-complexed bis-cage-annulated 20-crown-6 was obtained. The associated picrate anion was found to be intimately involved in stabilization of the host-guest complex. The interaction energy between the host-guest complex and picrate anion has been calculated, and the energy thereby obtained has been corrected for basis set superposition error.","abstract_has_math":false,"creators":["Hazlewood, Anna"],"institution":"University of North Texas","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Marchand, Alan P.","Marshall, Paul, 1960-","Thomas, Ruthanne D."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2001,"date_issued":"2001-08","date_published":"2001-08","updated_at":"2026-07-24T05:34:52Z","subjects":["Crown ethers.","Cyclic compounds.","novel cryptand","Rb+ and Cs+","Host-guest interactions","Selective metal cation complexation","Crown ether synthesis"],"languages":["English"],"rights":["Public","Copyright","Hazlewood, Anna","Copyright is held by the author, unless otherwise noted. All rights reserved."],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["oclc: 51196783","https://digital.library.unt.edu/ark:/67531/metadc2896/","ark: ark:/67531/metadc2896"],"render_values":[{"text":"oclc: 51196783","href":null,"code":true},{"text":"https://digital.library.unt.edu/ark:/67531/metadc2896/","href":"https://digital.library.unt.edu/ark:/67531/metadc2896/","code":true},{"text":"ark: ark:/67531/metadc2896","href":null,"code":true}]}]},"links":{"outbound_url":"https://doi.org/10.12794/metadc2896","outbound_label":"DOI","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Marchand, Alan P.","Marshall, Paul, 1960-","Thomas, Ruthanne D."]},{"key":"dc:creator","label":"Author","values":["Hazlewood, Anna"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2001-08"]},{"key":"dc:publisher","label":"Institution","values":["University of North Texas"]},{"key":"dc:type","label":"Dc Type","values":["Thesis or Dissertation"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Crown ethers.","Cyclic compounds.","novel cryptand","Rb+ and Cs+","Host-guest interactions","Selective metal cation complexation","Crown ether synthesis"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["English"]},{"key":"dc:rights","label":"Dc Rights","values":["Public","Copyright","Hazlewood, Anna","Copyright is held by the author, unless otherwise noted. All rights reserved."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["oclc: 51196783","doi: 10.12794/metadc2896","https://digital.library.unt.edu/ark:/67531/metadc2896/","ark: ark:/67531/metadc2896"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["A novel cryptand was synthesized which contained a 3,5-disubstituted-4- oxahexacyclo[5.4.1.02,6.03,10.05,9.08,11] dodecane \"cage\" moiety. In alkali metal picrate extraction experiments the cryptand exhibited high avidity towards Rb+ and Cs+, when compared with the corresponding model compound. A computational study of a series of cage-functionalized cryptands and their alkali metal-complexes was performed. The X-ray crystal structure of a K+-complexed bis-cage-annulated 20-crown-6 was obtained. The associated picrate anion was found to be intimately involved in stabilization of the host-guest complex. The interaction energy between the host-guest complex and picrate anion has been calculated, and the energy thereby obtained has been corrected for basis set superposition error."]},{"key":"dc:format","label":"Dc Format","values":["Text"]},{"key":"dc:title","label":"Title","values":["Synthesis and properties of novel cage-functionalized crown ethers and cryptands."]}]}],"canonical_facts":{"dc:contributor":["Marchand, Alan P.","Marshall, Paul, 1960-","Thomas, Ruthanne D."],"dc:creator":["Hazlewood, Anna"],"dc:date":["2001-08"],"dc:description":["A novel cryptand was synthesized which contained a 3,5-disubstituted-4- oxahexacyclo[5.4.1.02,6.03,10.05,9.08,11] dodecane \"cage\" moiety. In alkali metal picrate extraction experiments the cryptand exhibited high avidity towards Rb+ and Cs+, when compared with the corresponding model compound. A computational study of a series of cage-functionalized cryptands and their alkali metal-complexes was performed. The X-ray crystal structure of a K+-complexed bis-cage-annulated 20-crown-6 was obtained. The associated picrate anion was found to be intimately involved in stabilization of the host-guest complex. The interaction energy between the host-guest complex and picrate anion has been calculated, and the energy thereby obtained has been corrected for basis set superposition error."],"dc:format":["Text"],"dc:identifier":["oclc: 51196783","doi: 10.12794/metadc2896","https://digital.library.unt.edu/ark:/67531/metadc2896/","ark: ark:/67531/metadc2896"],"dc:language":["English"],"dc:publisher":["University of North Texas"],"dc:rights":["Public","Copyright","Hazlewood, Anna","Copyright is held by the author, unless otherwise noted. All rights reserved."],"dc:subject":["Crown ethers.","Cyclic compounds.","novel cryptand","Rb+ and Cs+","Host-guest interactions","Selective metal cation complexation","Crown ether synthesis"],"dc:title":["Synthesis and properties of novel cage-functionalized crown ethers and cryptands."],"dc:type":["Thesis or Dissertation"]},"updated_at":"2026-07-24T05:34:52Z"}