GAS-CHROMATOGRAPHIC STUDY OF THE INCLUSION PROPERTIES OF CALIXARENES .1. P-TERT-BUTYLCALIX[4]ARENE IN A MICROPACKED COLUMN

Quantitative structure-retention relationships (QSRR) in gas-solid chr omatography (GSC) were employed as an auxiliary method to study the in clusion properties of p-tert.-butylcalix[4]arene. Selected experimenta l retention data were studied thermodynamically. The sorbates involved homologous series of aliphatic and alicyclic alkanes and alkenes, aro matics, halo derivatives, alcohols and ethers. It is presumed that p-t ert.-butylcalix[4]arene forms inclusion complexes with benzene, its lo wer n-alkyl derivatives (toluene to n-butylbenzene), p-dialkylbenzenes (p-xylene, p-ethyltoluene), m-xylene, di- and trichloromethane, metha nol and ethanol under GSC conditions.