Investigating some novel closed neighborhood topological indices of nanostructures
Abstract
Chemical graph theory plays an essential role in mathematical chemistry by representing
chemical compounds as molecular graphs and utilizing graph-theoretical methods to analyze
them. Topological indices (TIs) are numerical parameters that describe the structure of a
molecular graph. In this work, we introduced newly defined seven closed neighborhood topo-
logical indices and compute the same for some standard classes of graphs. Later we examine
these indices with some physical properties of octane isomers. Our indices exhibits highly
correlation with acentric factor of octane isomers. Additionally we derive the expression for
seven TI's of TUC4C8(R)[p; q] nanostructures as well as subdivision graph and the line graph
of the subdivision graph of TUC4C8(R)[p; q] nanostructures.
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