Study on Quantitative Relationship Between Physicochemical Properties of Alkane and a Series of Effective Molecular Topological Indexes Easily Given

Based on the molecular topology theory,a series of topological indexes(N,Pi,Sj)were easily given using names of alkane,the quantitative relationship between topological index and many physicochemical properties were studied.The studied results show that the advanced relativity,a wide range of applications and selectivity exist between these topological indexes easily given and many physico-chemical properties.