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Computational results on the energy and Estrada index of TUC4C8(R)[m, n] nanotubes

MEHAR ALI MALIK1, RASHID FAROOQ1,*

Affiliation

  1. School of Natural Sciences, National University of Sciences and Technology, H-12 Islamabad, Pakistan

Abstract

The aim of this paper is to investigate the approximate values of energyand Estrada index of the 2-dimensional lattice of TUC4C8(R)[m, n] nanotubes by using computational and statistical tools. Our computations suggest that the energy of this graph can be estimated by the polynomial 6 2 2 4 2 4 2 4 2 1.534 10 n m 3.427 10 n m 1.713 10 m 4.565 10 n +5.875nm-            4 2 3.725 10 nm 5.195n - 0.6824m - 0.6915 and the Estrada index of this graph can be estimated by 16 2 2 11 2 11 2 4 2 5 2 2.973 10 n m 2.189 10 n m 2.116 10 n 1.721 10 nm 13.53nm 11.51n 1.026 10 m 2.029m 1.982..

Keywords

Nanotubes, Energy, Estrada index.

Citation

MEHAR ALI MALIK, RASHID FAROOQ, Computational results on the energy and Estrada index of TUC4C8(R)[m, n] nanotubes, Optoelectronics and Advanced Materials - Rapid Communications, 9, 1-2, January-February 2015, pp.311-313 (2015).

Submitted at: Oct. 30, 2014

Accepted at: Jan. 21, 2015