Correlations between molecular structure and physical properties of alkyl iodides and their retention indices

✍ Scribed by Gianrico Castello; Giuseppina D'amato

• Publisher: Elsevier Science
• Year: 1971
• Tongue: English
• Weight: 717 KB
• Volume: 58
• Category: Article
• ISSN: 1873-3778
• DOI: 10.1016/s0021-9673(00)96606-8

✦ Synopsis

All the isomers of all<yl iodides with one to six carbon atoms were analysed by gas chromatograplly, and the retention indices relative to I-iodonlkanes were calculated.

The relationship between molecular structure, iodine atom position, boiling point, density, molecular volume ancl retention index was investigated. Correlations between the retention indes and the boiling point were found, and a pronouncecl effect of the molecular volume was also observed for branched compounds wit11 iodine substituted on the tertiary carbon atom or in the a position. In these compounds the increase of molecular volume tends to compensate the decrease in the boiling point, giving very similar values of the retention indes.

* Values marked l are cstmpolntecl from low pressure clnta by mcans of eqn. I.