New Versions of Locating Indices and Their Significance in Predicting the Physicochemical Properties of Benzenoid Hydrocarbons

In this paper, we introduce some new versions based on the locating vectors named indices. particular, Hyper indices, Randić index, and Sambor index. The exact formulae for these indices of well-known families graphs Helm graph are derived. Moreover, determine importance 11 benzenoid hydrocarbons. Furthermore, show that have a reasonable correlation using linear regression with physicochemical characteristics such as molar entropy, acentric factor, boiling point, complexity, octanol–water partition coefficient, Kovats retention cases in which good correlations were obtained suggested validity calculated topological to be further used predict properties much more complicated chemical compounds.