Multicenter Wiener indices and their applications
Multicenter Wiener indices and their applications
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DOI：
10.2298/jsc150126015g
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发表时间：
2015-09
影响因子：
1
通讯作者：
I. Gutman;Boris Furtula;Xueliang Li
中科院分区：
文献类型：
--
作者：
I. Gutman;Boris Furtula;Xueliang Li
维纳指数\(W\)可被视为一种分子结构描述符，它由代表原子对之间相互作用的增量组成。\(W\)的一种推广是施泰纳 - 维纳指数\(W_{k}\)，\(k = 3,4,\cdots\)。在这个量中，基于施泰纳距离的概念，\(k\)元原子组之间的相互作用起作用。结果表明，\(W + lW_{k}\)对烷烃沸点的近似比\(W\)本身更好。当\(k = 7\)时可获得最佳的此类近似。
The Wiener index W could be viewed as a molecular structure des criptor composed of increments representing interactions between pairs of atoms. A generalization of the W are the Steiner–Wiener indices W k , k = 3, 4, … In the quantity, W k interactions between k -tuples of atoms play a role, based on the concept of the Steiner distance. It is shown that the term W + l W k provides an approximation for the boiling points of alkanes better than W itself. The best such approximation is obtained for k = 7.