QUANTITATIVE CORRELATION «STRUCTURE OF ALKYNES C2H2-C9H16 – THE HEAT OF VAPORIZATION »

Abstract

For series alkynes CnH2n-2 based on group additive method (which based on the first environment of atoms), one obtained 8-constant additive scheme of calculation of their physical and chemical properties. It is shown that within the accepted classification of structural elements in the molecules of alkynes demonstrate a linear relationship. According to the obtained formula, numerical calculations of the heats of vaporization at normal boiling point Hvap of alkynes C2H2-C9H16 not studied experimentally were carried out.

Keywords

• additive schemes
• alkynes
• the heat of vaporization
• multiple non-bonded interactions
• additive-group method