Oa. Osipova et al., GAS-LIQUID-CHROMATOGRAPHY OF PERFLUOROCARBOXYLIC THIOESTERS .2. SORPTION CHARACTERISTICS, Russian chemical bulletin, 46(6), 1997, pp. 1116-1119
Perfluorocarboxylic thioesters RFC(O)SR (R-F = CF3(CF2)(j), R = CH3(CH
2)(i), i and j = 0-5) were studied for the first time by GLC on packed
columns using SE-30, SKTFT-50X, and XE-60 as the stationary phase. Th
e values of thermodynamic functions of sorption were calculated. The c
orrelations between these functions and the molecular structures as we
ll as the conditions of analysis were established. The insertion of th
e S atom into the molecules of derivatives of perfluorocarboxylic acid
s causes a decrease in the contribution of the orientation interaction
and an increase in the dispersion interaction of thioesters with the
stationary phases compared to esters and amides of perfluorocarboxylic
acids studied previously.