QSPR study using four novel topological indices for benzenoid hydrocarbons

In chemical graph theory, a numeral principally linked with the structure of the chemical compound is known as a molecular descriptor which is described as a topological index of a graph in graph theory. The employment of the topological indices has capacity across-the-board in many areas such as chemical bonding theory, research, and manufacturing of drugs. The Forgotten topological index is a suitable index to analyze the medical and biological information of drug molecular structures which is denoted as the summation of squares of the adjacent vertices whereas the Harmonic index is ∑u,vgEdu+dv2_. In this paper, we proposed four novel indices based on these two indices called STAS1(G), STAS2(G), STAS3(G), and STAS4(G). This paper shows that the novel indices have strong correlation among the thermal properties of octane isomers. Furthermore, we find the correlation coefficients of the Physicochemical properties of benzenoid hydrocarbons with the above-mentioned novel topological indices. The QSPR analysis is prepared on higher values of the correlation coefficients among the Physicochemical Properties of benzenoid hydrocarbons with our novel topological indices.