Journal of Mathematical Chemistry

, Volume 42, Issue 3, pp 433–446 | Cite as

Topological Estimation of Aromatic Stabilities of Polyacenes and Helicenes: Modeling of Resonance Energy and Benzene Character

  • Padmakar V. Khadikar
  • Jyoti Singh
  • Maya Ingle

The distance-based topological indices viz Wiener (W)-, Szeged (Sz)-, Padmakar-Ivan (PI)- and Sadhana (Sd)-indices have been used for estimating aromatic stabilities as well as % benzene character of polyacenes and helicenes. Excellent models are obtained in combined set and there was no need to split the data set into polyacenes and helicenes. The newly introduced Sd index was found the best index among all the four indices used. In bi-parametric modeling with the combination of the Sd index with the PI index yielded excellent results. The results are discussed critically on the basis of variety of statistical parameters.


aromatic stability polyacenes helicenes Padmakar-Ivan index Sadhana index regression analysis topological index resonance energy % benzene character 


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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • Padmakar V. Khadikar
    • 1
  • Jyoti Singh
    • 2
  • Maya Ingle
    • 3
  1. 1.Research DivisionLaxmi Fumigation and Pest Control, Pvt. Ltd.IndoreIndia
  2. 2.Department of ChemistryA.P.S. UniversityRewaIndia
  3. 3.Computer CenterDevi Ahilya VishwavidyalayaIndoreIndia

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