Edge-PI Index of TUC4C8(S) Nanotubes

Luo Zhong Gong

doi:10.4028/www.scientific.net/AMR.322.271

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 322Edge-PI Index of TUC4C8(S) Nanotubes

Edge-PI Index of TUC₄C₈(S) Nanotubes

Abstract:

Carbon nanotubes show remarkable mechanical properties. Experimental studies have shown that they belong to the stiffest and elastic known materials. These good properties are connect with their topological indices of molecules. Recently computing topological indices of nanostructures have been the object of many papers. The edge version of Padnakar-Ivan (PI) index is a graph invariant defined as PI =\sum_{e\in E(G)}[n_u(e)+n_v(e)], where e=uv, n_u(e) is the number of edges of G lying closer to u than to v and n_v(e) is the number of edges of G lying closer v than to u. In this paper, an exact expression for edge-PI index of TUC₄C₈(S) nanotubes is given.

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Periodical:

Advanced Materials Research (Volume 322)

Pages:

271-274

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.322.271

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Online since:

August 2011

Authors:

Luo Zhong Gong

Keywords:

Bipartite Connected Graph, PI Index, Symmetric, TUC₄C₈(S) Nanotube

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