{"id":{"repo_id":"unt","oai_identifier":"info:ark/67531/metadc4268"},"canonical_url":"https://search.dev.ndltd.org/etd/unt/info:ark/67531/metadc4268","repository":{"repo_id":"unt","name":"University of North Texas","base_url":"https://digital.library.unt.edu/oai/"},"display":{"title":"Synthesis and X-ray Diffraction Structure of 8,9-Dichloropyrrolo[1,2-a]perimidin-10-one","abstract":"Treatment of dichloromaleic anhydride and 1,8-diaminonaphthalene in either benzene or toluene under refluxing conditions gives low yields of the new heterocyclic compound 8,9-dichloropyrrolo[1,2-a]perimidin-10-one. This product has been isolated and characterized in solution by NMR, IR, and UV/vis spectroscopies, and the solid-state structure of 8,9-dichloropyrrolo[1,2-a]perimidin-10-one has been established by X-ray crystallography. The nature of the HOMO and LUMO levels of 8,9-dichloropyrrolo[1,2-a]perimidin-10-one has been studied by extended Hückel molecular orbital calculations.","abstract_html":"Treatment of dichloromaleic anhydride and 1,8-diaminonaphthalene in either benzene or toluene under refluxing conditions gives low yields of the new heterocyclic compound 8,9-dichloropyrrolo[1,2-a]perimidin-10-one. This product has been isolated and characterized in solution by NMR, IR, and UV/vis spectroscopies, and the solid-state structure of 8,9-dichloropyrrolo[1,2-a]perimidin-10-one has been established by X-ray crystallography. The nature of the HOMO and LUMO levels of 8,9-dichloropyrrolo[1,2-a]perimidin-10-one has been studied by extended Hückel molecular orbital calculations.","abstract_has_math":false,"creators":["Chen, Tao"],"institution":"University of North Texas","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Richmond, Michael","Dandekar, Sushama"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2003,"date_issued":"2003-08","date_published":"2003-08","updated_at":"2026-07-24T05:35:09Z","subjects":["Maleic anhydride.","dichloromaleic anhydride","nitrogen heterocycle","x-ray crystallography","perimidine compound","2,3-bis(diphenylphosphino) maleic anhydride (bma)"],"languages":["English"],"rights":["Use restricted to UNT Community","Copyright","Chen, Tao","Copyright is held by the author, unless otherwise noted. All rights reserved."],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["oclc: 54028298","https://digital.library.unt.edu/ark:/67531/metadc4268/","ark: ark:/67531/metadc4268"],"render_values":[{"text":"oclc: 54028298","href":null,"code":true},{"text":"https://digital.library.unt.edu/ark:/67531/metadc4268/","href":"https://digital.library.unt.edu/ark:/67531/metadc4268/","code":true},{"text":"ark: ark:/67531/metadc4268","href":null,"code":true}]}]},"links":{"outbound_url":"https://doi.org/10.12794/metadc4268","outbound_label":"DOI","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Richmond, Michael","Dandekar, Sushama"]},{"key":"dc:creator","label":"Author","values":["Chen, Tao"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2003-08"]},{"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":["Maleic anhydride.","dichloromaleic anhydride","nitrogen heterocycle","x-ray crystallography","perimidine compound","2,3-bis(diphenylphosphino) maleic anhydride (bma)"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["English"]},{"key":"dc:rights","label":"Dc Rights","values":["Use restricted to UNT Community","Copyright","Chen, Tao","Copyright is held by the author, unless otherwise noted. 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The nature of the HOMO and LUMO levels of 8,9-dichloropyrrolo[1,2-a]perimidin-10-one has been studied by extended Hückel molecular orbital calculations."]},{"key":"dc:format","label":"Dc Format","values":["Text"]},{"key":"dc:title","label":"Title","values":["Synthesis and X-ray Diffraction Structure of 8,9-Dichloropyrrolo[1,2-a]perimidin-10-one"]}]}],"canonical_facts":{"dc:contributor":["Richmond, Michael","Dandekar, Sushama"],"dc:creator":["Chen, Tao"],"dc:date":["2003-08"],"dc:description":["Treatment of dichloromaleic anhydride and 1,8-diaminonaphthalene in either benzene or toluene under refluxing conditions gives low yields of the new heterocyclic compound 8,9-dichloropyrrolo[1,2-a]perimidin-10-one. This product has been isolated and characterized in solution by NMR, IR, and UV/vis spectroscopies, and the solid-state structure of 8,9-dichloropyrrolo[1,2-a]perimidin-10-one has been established by X-ray crystallography. The nature of the HOMO and LUMO levels of 8,9-dichloropyrrolo[1,2-a]perimidin-10-one has been studied by extended Hückel molecular orbital calculations."],"dc:format":["Text"],"dc:identifier":["oclc: 54028298","doi: 10.12794/metadc4268","https://digital.library.unt.edu/ark:/67531/metadc4268/","ark: ark:/67531/metadc4268"],"dc:language":["English"],"dc:publisher":["University of North Texas"],"dc:rights":["Use restricted to UNT Community","Copyright","Chen, Tao","Copyright is held by the author, unless otherwise noted. All rights reserved."],"dc:subject":["Maleic anhydride.","dichloromaleic anhydride","nitrogen heterocycle","x-ray crystallography","perimidine compound","2,3-bis(diphenylphosphino) maleic anhydride (bma)"],"dc:title":["Synthesis and X-ray Diffraction Structure of 8,9-Dichloropyrrolo[1,2-a]perimidin-10-one"],"dc:type":["Thesis or Dissertation"]},"updated_at":"2026-07-24T05:35:09Z"}