Abstract
The retention behaviour of 32 synthesized C 6—C 15 monoalkylcyclopentadienes was studied by capillary gas chromatography on squalane and Carbowax 20M stationary phases. Alkylcyclopentadienes were characterized on the basis of retention-structure relationships. An equation describing precisely the retention behaviour of the first six members of homologous series of alkylcyclopentadiens and that permits the determination of the contribution of stereochemical and conformational properties (propyl effect) of the structure of homologues to their retention is presented. The propyl effect is valid for monoalkylcyclopentadiens in which the propyl group is situated on a carbon atom bearing both double and single bonds in the cyclopentadiene ring.
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