烯烃的沸点及其分子结构图

THE BOILING POINTS OF ALKENES AND THEIR MOLECULAR CRAPH

研究烯烃的沸点和其分子结构的关系,导出了求算烯烃沸点的经验公式 lgT=0.1795lg(w+3p+3n-α-1.5ω)+2.2482 式中T为烯烃的沸点(K);w为Wiener径向指数;p=P-P′,P,P′分别为烯烃和其分子量相同的直链α-烯烃的极性指数;α,ω分别为烯烃的α,ω取代基数;n为双键上烷基数减1。

The relationship between the boiling points of alkenes and their structures is studied, and a new kind of empirical formula for calculating the boiling points of alkenes is derived lgT= 0.1795lg(w+3p+3n-α-1.5ω)+2.2482 in which T(K) is the boiling points of alkenes, w is path number, p=PP', P is polarity number of alkene, P' is polarity number of normal α—alkene, α is the number of alkyl at the α-carbon, ω is the number of alkyl at the ω-carbon, n=n'-1, n' is the number of alkyl at the double bond.