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Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.46A [2007] >
IJC-A Vol.46A(05) [May 2007] >
| Title: | Estrada index of acyclic molecules |
| Authors: | Gutman, Ivan
Furtula, Boris
Glišić, Biljana
Marković, Violeta
Vesel, Aleksander |
| Issue Date: | May-2007 |
| Publisher: | CSIR |
| Abstract: | A structure-descriptor EE, recently proposed by Estrada, is examined. If λ₁, λ₂,..., λո are the eigenvalues of the molecular graph, then EE=Ʃeλi . In the case of trees with n vertices (that are the graph representations of alkane isomers CռH2ռ₊₂), the main structural factor influencing the differences between the EE-values has been found to be the Zagreb index Zg. The coefficient b in the regression line EE = a Zg + b is an almost perfectly linear function of n, implying that in the case of alkanes, EE linearly increases with the number of carbon atoms. |
| Page(s): | 723-728 |
| ISSN: | 0376-4710 |
| Source: | IJC-A Vol.46A(05) [May 2007]
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