Author/Authors :
Gutman، نويسنده , , Ivan and Soldatovi?، نويسنده , , Tanja and Graovac، نويسنده , , Ante and Vukovi?، نويسنده , , Slavko، نويسنده ,
Abstract :
A new method for approximating the total π-electron energy (E) of a conjugated hydrocarbon by means of spectral moments is put forward. The method results in expressions for E that are non-linear functions of spectral moments. Applied to benzenoid hydrocarbons, a family of (n,m)-type approximate formulae for E is obtained (n=number of vertices, m=number of edges).