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Forgotten topological index of some nanostructures

Thayamathy P. J. N., Elango P and Koneswaran M

The previous research showed that the chemical characteristics of drugs and their molecular structures were closely related. The molecular structures have been studied by the topological indices for the last 40 years. The degree-based topological indices played a significant role in the study of molecular structures. The F-index was one of the latest degree-based topological indices which played a significant role in the study of chemical and pharmacodynamics characteristics of drugs. Even though there have been many developments in the study of the degree-based topological indices of molecular graphs, the studies of forgotten topological index for special chemicalmolecular structures were inadequate. In this paper, we studied the F-index for some well-known Nano structures.

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