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Citation: Ding Wei, Liu Xian-Jun, Yu Tao, Wu Wen-Xiang, Liu Na, Zhang Yan-Qiu. A Simple Al rithm for Wiener Index of Substituted Derivatives of Linear Alkanes[J]. Acta Physico-Chimica Sinica, ;2004, 20(11): 1369-1371. doi: 10.3866/PKU.WHXB20041116 shu

A Simple Al rithm for Wiener Index of Substituted Derivatives of Linear Alkanes

1.
Chemistry and Chemical Engineering Institute; 1Petroleum Engineering Institute, Daqing Petroleum Institute, Daqing　163318

Received Date: 24 March 2004
Available Online: 15 November 2004

Based on the characteristics of molecular topological structure of linear alkane substituted derivatives, linear alkane substituted derivatives were divided into linear chain unit and substituted groups. Then according to the characteristics of the topological structure of each part, the formulae for the calculation of Wiener index have been given. So a new and simple al rithm for calculating Wiener index has been proposed, which simplified the calculation of Wiener index. This new al rithm has the advantages of high efficiency, accurate compared with that of the traditional al rithm for Wiener index, and can be easily used in computer program for Wiener index. Thus the practicability of Wiener index has been improved.
- Substituted derivatives of linear alkanes;Wiener index;Site index;Al rithm
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