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A Novel Topological Index for the Study of Biological Activity(Toxicity)of Organic Compounds
Author(s): 
Pages: 99-102
Year: Issue:  2
Journal: GUANGXI SCIENCES

Keyword:  拓扑指数有机物分子连接性生物活(毒)性;
Abstract: 提出一个新的拓扑指数Yx,即隐氢图中的所有相邻边的一阶分子连接性指数的乘积之和占分子中有效碳原子的分率.用Yx研究取代苯、甲基苯、卤代苯、卤代烃、氯苯、含氮杂环化合物和直链伯醇的生物活(毒)性,建立相应的相关方程(r=0.9203~0.9914).计算出部分取代苯类化合物对发光菌(Photobacterium phosphoreum)、呆鲦鱼(Pimephales Promelas)、大型蚤(Daphnia magua straus)、酵母菌(Saccharomyces cerevisiae)和绿藻Green algae的毒性数据.新的拓扑指数易于计算,有较高的结构区分能力,新方法计算方便,物理意义明确.
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