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Ministerio de EconomÃa y Competitividad (Espanya)
Generalitat de Catalunya. Agència de Gestió d’Ajuts Universitaris i de Recerca |
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El Bakouri, Ouissam
Poater i Teixidor, Jordi Feixas Geronès, Ferran Solà i Puig, Miquel |
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2018 June 5 | |
The Clar pi-sextet rule was formulated as a tool to qualitatively assign the local aromatic character of six-membered rings in benzenoid species. This simple rule has been widely validated both experimentally and theoretically. In 1984, Glidewell and Lloyd reported an extension of this rule to polycyclic conjugated hydrocarbons having rings with any even number of carbon atoms in their structure. In this work, we assess the validity of the Glidewell-Lloyd extension in 69 polycyclic conjugated hydrocarbons composed of different combinations of four-, six-, and eight-membered rings. Our results support the validity of this extension with some exceptions that are discussed. Finally, a minor modification to the rule is proposed This work has been supported by the Ministerio de EconomÃa y Competitividad (MINECO) of Spain (Project CTQ2014-54306-P) and the Generalitat de Catalunya (project 2014SGR931, Xarxa de Referència en QuÃmica Teòrica i Computacional, ICREA Academia 2014 prize for M.S., and grant No. 2014FI_B 00429 to O.E.B.). The EU under the FEDER grant UNGI10-4E-801 (European Fund for Regional Development) has also funded this research |
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http://hdl.handle.net/2072/321124 | |
eng | |
Springer Verlag | |
Tots els drets reservats | |
Compostos policÃclics
Polycyclic compounds Aromaticitat (QuÃmica) Aromaticity (Chemistry) Compostos aromà tics Aromatic compounds |
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Exploring the validity of the Glidewell-Lloyd extension of Clar’s π-sextet rule: assessment from polycyclic conjugated hydrocarbons | |
info:eu-repo/semantics/article | |
Recercat |