计算V型苯基纳米管和纳米环面的第四原子键连接性指数。

Computing fourth atom-bond connectivity index of v-phenylenic nanotubes and nanotori.

作者信息

Farahani Mohammad Reza

机构信息

Department of Applied Mathematics of Iran University of Science and Technology (IUST), Narmak, Tehran 16844, Iran.

出版信息

Acta Chim Slov. 2013;60(2):429-32.

PMID:23878950

Abstract

Among topological descriptors connectivity topological indices are very important and they have a prominent role in chemistry. One of them is atom-bond connectivity (ABC) index defined as ABC(G)= [formula:see text], in which degree of vertex v denoted by dv . Recently, a new version of atom-bond connectivity (ABC4) index was introduced by M. Ghorbani et.al in 2010 and is defined as ABC4(G)= [formula: see text], where Su = [formula: see text] and NG(u)=[formula: see text]. In this paper we compute this new topological index for v-phenylenic nanotube and nanotori.

摘要

在拓扑描述符中，连通性拓扑指数非常重要，它们在化学中具有突出作用。其中之一是原子键连通性（ABC）指数，定义为ABC(G)= [公式：见正文]，其中顶点v的度用dv表示。最近，M. Ghorbani等人在2010年引入了原子键连通性（ABC4）指数的新版本，定义为ABC4(G)= [公式：见正文]，其中Su = [公式：见正文] 且NG(u)=[公式：见正文]。在本文中，我们计算了V型苯基纳米管和纳米环面的这种新拓扑指数。