The F-index and coindex of V-Phenylenic Nanotubes and Nanotorus and their molecular complement graphs
https://doi.org/10.17586/2220-8054-2021-12-3-263-270
Abstract
The forgotten topological index was defined to be used in the analysis of chemical structures which often appear in drug molecular graphs. In this paper, we studied the F-index and F-coindex for certain important physico chemical structures such as V-Phenylenic Nanotube V PHX [m; n] and V-Phenylenic Nanotorus V PHY [m; n] and their molecular complement graph. Moreover, we computed F-polynomial of the V-Phenylenic Nanotubes and Nanotorus. These explicit formulae can correlate the chemical structure of molecular graphs of Nanotubes and Nanotorus to information about their physicochemical structure.
Keywords
F-index,
F-coindex,
V-Phenylenic Nanotubes and Nanotori,
molecular graph,
molecular complement graph
Supporting agencies: The authors would like to thank the reviewer for his constructive suggestions and useful comments which resulted in an improved version of this paper.
About the Authors
M. S.Y. Alsharafi
Yildiz Technical University
Turkey
Turkey
Mohammed S.Y. Alsharafi, Graduate School of Natural and Applied Sciences
Istanbul
A. Q. Alameri
University of Science and Technology
Yemen
Yemen
Abdu Q. Alameri, Department of Biomedical Engineering
Sana’a
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Review
For citations:
Alsharafi M.S., Alameri A.Q. The F-index and coindex of V-Phenylenic Nanotubes and Nanotorus and their molecular complement graphs. Nanosystems: Physics, Chemistry, Mathematics. 2021;12(3):263-270. https://doi.org/10.17586/2220-8054-2021-12-3-263-270
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