<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-05-28T13:47:14Z</responseDate><request verb="GetRecord" identifier="oai:riuma.uma.es:10630/25129" metadataPrefix="qdc">https://riuma.uma.es/rest/oai/request</request><GetRecord><record><header><identifier>oai:riuma.uma.es:10630/25129</identifier><datestamp>2026-02-03T11:14:59Z</datestamp><setSpec>com_10630_2254</setSpec><setSpec>col_10630_37953</setSpec></header><metadata><qdc:qualifieddc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:doc="http://www.lyncode.com/xoai" xmlns:qdc="http://dspace.org/qualifieddc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://purl.org/dc/elements/1.1/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dc.xsd http://purl.org/dc/terms/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dcterms.xsd http://dspace.org/qualifieddc/ http://www.ukoln.ac.uk/metadata/dcmi/xmlschema/qualifieddc.xsd">
   <dc:title>Polycyclic Hydrocarbons from [4n]Annulenes: Correlation versus Hybridization Forces in the Formation of Diradicaloids</dc:title>
   <dc:creator>Moles Quintero, Sergio</dc:creator>
   <dc:creator>Haley, Michael M.</dc:creator>
   <dc:creator>Kertesz, Miklos</dc:creator>
   <dc:creator>Casado-Cordón, Juan</dc:creator>
   <dc:subject>Química Física</dc:subject>
   <dcterms:abstract>The conceptual connections between [4n] Hückel antiaromaticity, disjoint orbitals, correlation energy, pro-aromaticity and diradical character for a variety of extended π-conjugated systems, including some salient recent examples of nanographenes and polycyclic aromatic radicals, are provided based on their [4n]annulene peripheries. The realization of such structure–property relationships has led to a beneficial pedagogic exercise establishing design guidelines for diradicaloids. The antiaromatic fingerprint of the [4n]annulene peripheries upon orbital interactions due to internal covalent connectors gives insights into the diradicaloid property of a diversity of π-conjugated molecules that have fascinated chemists recently.</dcterms:abstract>
   <dcterms:dateAccepted>2022-09-28T08:17:22Z</dcterms:dateAccepted>
   <dcterms:available>2022-09-28T08:17:22Z</dcterms:available>
   <dcterms:created>2022-09-28T08:17:22Z</dcterms:created>
   <dcterms:issued>2022-08-20</dcterms:issued>
   <dc:type>journal article</dc:type>
   <dc:identifier>S. Moles Quintero, M. M. Haley, M. Kertesz, J. Casado, Angew. Chem. Int. Ed. 2022, e202209138; Angew. Chem. 2022, e202209138. https://doi.org/10.1002/anie.202209138</dc:identifier>
   <dc:identifier>https://hdl.handle.net/10630/25129</dc:identifier>
   <dc:identifier>https://doi.org/10.1002/anie.202209138</dc:identifier>
   <dc:language>eng</dc:language>
   <dc:rights>http://creativecommons.org/licenses/by/4.0/</dc:rights>
   <dc:rights>open access</dc:rights>
   <dc:rights>Atribución 4.0 Internacional</dc:rights>
   <dc:publisher>Wiley</dc:publisher>
</qdc:qualifieddc>
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