Possibilities of cyclization of side alkyl chains of n-alkylphenols and n-alkylbenzenes in the environment of a stationary phase

Title:

Possibilities of cyclization of side alkyl chains of n-alkylphenols and n-alkylbenzenes in the environment of a stationary phase

Creator:

Pavel Straka, Petr Buryan, and Jana Tomanová

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:8c16aff2-c711-4b56-9e59-dedb175b03ff
uuid:8c16aff2-c711-4b56-9e59-dedb175b03ff
issn:1214-9705

Subject:

Geologie. Meteorologie. Klimatologie, geochemie, alkylphenols, alkylbenzenes, non-covalent interactions, van der Waals forces, retention times, 7, and 551

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

During separations in both polar and nonpolar stationary phases of gas chromatographic columns, side alkylchains of n-alkylphenols and n-alkylbenzenes become cyclized. In the aromatic-quasi-alicyclic molecules that are thereby formed, the effect of van der Waals forces is thus increased. The increase involves not only intramolecularly but also intermolecularly acting effects and becomes significantly evident when propyl and higher substituents as butyl, pentyl and hexyl constitute the side alkyl chains. As a result, boiling points considerably increase (non-linearly) in the case of n-alkylphenols and n-alkylbenzenes with total number of carbons in the molecule higher than 9. This leads to divergence in the retention characteristics of the above-mentioned compounds, which can be observed in the dependence of relative retention times on the number of carbons. Cyclization of side alkyl chains in a stationary phase is a quite new phenomenon., Pavel Straka, Petr Buryan and Jana Náhunková., and Obsahuje bibliografické odkazy

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Acta geodynamica et geomaterialia : | 2008 Volume:5 | Number:1 (149)

Harvested from:

CDK

Metadata only:

false