It is shown that there is a remarkable difference between the Kekulé- and Clar-structure-dependence of the total π-electron energy (E) of catafusenes and perifusenes (catacondensed and pericondensed benzenoid molecules). Within classes of isomeric catafusenes the main parameter determining E is the Kekulé structure count whereas the influence of Clar-structure-based features is negligible. Within classes of isomeric perifusenes, Clar-structure-based features, in addition to the Kekulé structures, exhibit a significant effect on E. The present analysis is performed by using the mathematical formalism of the Zhang-Zhang polynomial [whose details are found in the recent paper: Gutman, Furtula, Balaban, Polycyclic Aromatic Compounds 26 (2006) 17–35].
A DIFFERENCE BETWEEN THE π-ELECTRON PROPERTIES OF CATAFUSENES AND PERIFUSENES
Log in via your institution
Log in to Taylor & Francis Online
Restore content access
Restore content access for purchases made as guestPDF download + Online access
- 48 hours access to article PDF & online version
- Article PDF can be downloaded
- Article PDF can be printed
Issue Purchase
- 30 days online access to complete issue
- Article PDFs can be downloaded
- Article PDFs can be printed
Related Research
People also read lists articles that other readers of this article have read.
Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.
Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.