Gaschromatographische retentionsdaten und struktur chemischer verbindungen : III. Alkylverzweigte und ungesättigte cyclische kohlenwasserstoffe

摘要: The retention indices of a relatively large number saturated and unsaturated cyclic hydrocarbons with 3, 5, 6, 7, 8, 9, 10, 11 12-membered rings were determined in capillary columns non-polar polar stationary liquid phases the H ΔI values examined to find out whether influence structural elements produces increments. Because particular steric factors that are involved case rings, possibilities incremental calculation or estimation limited as compared open-chain hydrocarbons. On other hand, — also ones have characteristic values, which, however, depend on degree substitution. Introduction double bonds ring systems complicated relationships due decrease mobility these considerable intermolecular interaction consequently indices. Nevertheless, rules for can be established, which permit characterization isomeric compounds been separated by gas chromatography.