P. Straka, P. Buryan and J. Nahunkova, “Possibilities of Cyclization of Side Alkyl Chains of n-Alkyl Phenols and n-Alkyl Benzenes in the Environment of a Stationary Phase,” Acta Geodynamica et Geomaterialia, Vol. 5, No. 1 (149), 2008, pp. 65-76.

has been cited by the following article:

• TITLE: A Study of the Behavior of Alkyl Side Chains Phenols and Arenes in Polar and Nonpolar GC Stationary Phases

  AUTHORS: Pavel Straka, Petr Buryan

  KEYWORDS: Alkyl Phenols, Alkyl Benzenes, Retention Times, Molecular Mechanics, Van der Waals Forces

  JOURNAL NAME: American Journal of Analytical Chemistry, Vol.2 No.3, July 8, 2011

  ABSTRACT: Gas chromatographic measurements of the relative retention times of alkyl-substituted arenes and phenols on capillary columns at temperatures of 125 – 140°C have shown that logarithms of retention times increase bilinearly with the number of carbon atoms in the molecule. It was found that in a high density stationary phase, the longer alkyl side chains of compounds in question are subject to cyclization as a result of the resistance force of this phase affecting molecules during their thermal and diffusion motion. Consequently, common conventional aromatic-aliphatic molecules become new molecules with quasi-alicyclic rings. In comparison with the conventionally conceived molecules, the resulting aromatic–quasi-alicyclic molecules are characterized by rather different, possibly even completely different non-covalent interactions between the molecules, which then affect the retention characteristics. Moreover, cyclization facilitates the mixing of n-alkyl arenes and n-alkyl phenols with high-molecular stationary phases, because the thermodynamic condition for mixing is better fulfilled.