Affiliation:
1. Department of Information Science and Technology , East China University of Political Science and Law , Shanghai 201620 , China
Abstract
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.
Subject
Physical and Theoretical Chemistry,General Physics and Astronomy,Mathematical Physics
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