Stability order of isomeric benzenoid hydrocarbons and Kekulé structure count

The commonly accepted opinion that the thermodynamic stability of isomeric benzenoid hydrocarbons (assessed by their total π-electron energy and various resonance energies) increases with increasing number of Kekulé structures is shown to be violated in numerous cases. The smallest examples of such...

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Main Authors:	SLAVKO RADENKOVIĆ, IVAN GUTMAN
Format:	Article
Language:	English
Published:	Serbian Chemical Society 2009-02-01
Series:	Journal of the Serbian Chemical Society
Subjects:	total π-electron energy Kekulé structures benzenoid hydrocarbons
Online Access:	http://www.shd.org.rs/JSCS/Vol74/No2/06_4164_3818.pdf

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spelling	doaj-59d8c98fdc86436aba99b0351fc9cc672020-11-24T21:35:39ZengSerbian Chemical Society Journal of the Serbian Chemical Society0352-51392009-02-01742155158Stability order of isomeric benzenoid hydrocarbons and Kekulé structure countSLAVKO RADENKOVIĆIVAN GUTMANThe commonly accepted opinion that the thermodynamic stability of isomeric benzenoid hydrocarbons (assessed by their total π-electron energy and various resonance energies) increases with increasing number of Kekulé structures is shown to be violated in numerous cases. The smallest examples of such anomalous behavior are two hexacyclic pericondensed benzenoids of formula C24H14 and several pairs of heptacyclic catacondensed benzenoids of formula C30H18.http://www.shd.org.rs/JSCS/Vol74/No2/06_4164_3818.pdftotal π-electron energyKekulé structuresbenzenoid hydrocarbons
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	SLAVKO RADENKOVIĆ IVAN GUTMAN
spellingShingle	SLAVKO RADENKOVIĆ IVAN GUTMAN Stability order of isomeric benzenoid hydrocarbons and Kekulé structure count Journal of the Serbian Chemical Society total π-electron energy Kekulé structures benzenoid hydrocarbons
author_facet	SLAVKO RADENKOVIĆ IVAN GUTMAN
author_sort	SLAVKO RADENKOVIĆ
title	Stability order of isomeric benzenoid hydrocarbons and Kekulé structure count
title_short	Stability order of isomeric benzenoid hydrocarbons and Kekulé structure count
title_full	Stability order of isomeric benzenoid hydrocarbons and Kekulé structure count
title_fullStr	Stability order of isomeric benzenoid hydrocarbons and Kekulé structure count
title_full_unstemmed	Stability order of isomeric benzenoid hydrocarbons and Kekulé structure count
title_sort	stability order of isomeric benzenoid hydrocarbons and kekulé structure count
publisher	Serbian Chemical Society
series	Journal of the Serbian Chemical Society
issn	0352-5139
publishDate	2009-02-01
description	The commonly accepted opinion that the thermodynamic stability of isomeric benzenoid hydrocarbons (assessed by their total π-electron energy and various resonance energies) increases with increasing number of Kekulé structures is shown to be violated in numerous cases. The smallest examples of such anomalous behavior are two hexacyclic pericondensed benzenoids of formula C24H14 and several pairs of heptacyclic catacondensed benzenoids of formula C30H18.
topic	total π-electron energy Kekulé structures benzenoid hydrocarbons
url	http://www.shd.org.rs/JSCS/Vol74/No2/06_4164_3818.pdf
work_keys_str_mv	AT slavkoradenkovic stabilityorderofisomericbenzenoidhydrocarbonsandkekulestructurecount AT ivangutman stabilityorderofisomericbenzenoidhydrocarbonsandkekulestructurecount
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Stability order of isomeric benzenoid hydrocarbons and Kekulé structure count

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