Comparison Between Two Kinds of Connectivity Indices for Measuring the π-Electronic Energies of Benzenoid Hydrocarbons
Deqiang Chen · Zeitschrift für Naturforschung A · 2019
Abstract In this paper, we show that both the general product-connectivity index χα and the general sum-connectivity index χ α s \({}^{s}{\chi_{\alpha}}\) are closely related molecular descriptors when the real number α is in some interval. By comparing these two kinds of indices, we show that the sum-connectivity index χ − 0.5601 s \({}^{s}{\chi_{-0.5601}}\) is the best one for measuring the π-electronic energies of lower benzenoid hydrocarbons. These improve the earlier results.