Effective length of carbon chain and boiling point of paraffinic hydrocarbons

Abstract

The effective length of carbon chain (N~E) was calculated by the equation N~E=(PT~S~,~N/PT~B~,~N)·N for the paraffinic hydrocarbon consisting of N carbon atoms, where the PT~S~,~N and PT~B~,~N represent the molecular polarizability index of isomer of straight-chain paraffin and branched-chain paraffin respectively. The result shows that the relationship between the N~E and boiling point Tb(K) of paraffinic hydrocarbons can be expressed by log(1076.575-Tb)=3.034649-5.043171×10^-^2N~E^2^/^3.

Key words: ALKANE, LONG CHAIN COMPOUND, BOILING POINTS, CHAIN LENGTH

CLC Number:

O621

Cite this article

CAO CHENZHONG;KONG CHUNHUI. Effective length of carbon chain and boiling point of paraffinic hydrocarbons[J]. Chin. J. Org. Chem., 1997, 17(4): 324-328.

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