Published:Journal of Chromatographic Science,
ISSN 0021-9665Volume
39, Number 10, October 2001, pp. 157-163
Investigation of Host–Guest Stability Constants of Calix[n]arenes
Complexes with Aromatic Molecules by RP-HPLC Method
R. Baudry[1], O. Kalchenko[2],[ I]. Dumazet-Bonnamour[1], F.
Vocanson[1], and R. Lamartine[1]
[1]Laboratoire de Chimie Industrielle, CNRS-UMR 5078, Université Claude
Bernard–Lyon1, 43, Bd du 11 Novembre 1918, 69622 Villeurbanne Cedex,
France and [2]Institute of Organic Chemistry, Ukrainian Academy of Sciences,
25660 Kiev-94, Ukraine
Under reversed-phase high-performance
liquid chromatographic conditions [Spherisorb ODS 1 stationary phase, UV detection
at 254 nm, and acetonitrile–dichloromethane–acetic
acid–methyl-tert-butylether (84.6/4.5/0.9/10, v/v/v/v) as the mobile phase],
adding p-tert-butylcalix[8] (10–5–3.10–5)–[12]arenes
(10–5–4.10–5 mol/L) to the mobile phase leads to decreased
sorption of aromatic solutes on the surface of the sorbent because of the formation
of host–guest inclusion complexes between the calixarenes and the aromatic
molecules. Stability constants of the complexes (781–9338M-1) are determined
from the relationship between the solute capacity factors and the calixarene
concentration in the mobile phase.
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