J. He et al., THE INCLUSION INTERACTIONS BETWEEN C-60 AND TERT-BUTYL-CALIX[8]ARENE IN BENZENE, TOLUENE AND CARBON-TETRACHLORIDE, Huaxue xuebao, 55(9), 1997, pp. 839-845
In this work, the UV-Vis absorption spectra of C-60, tert - butylcalix
[8] arene and their complex in benzene, toluene and carbon tetrachlori
de were studied. Their solubilities in these solvents were determined
by the spectrophotometric evaluation. The concentration products of fr
ee C-60 and tert-butylcalix[8] arene in the saturated solution of the
complex were measured by a solution-precipitate equilibrium method. Th
e true solubilities of the complex and the equilibrium constants of th
e inclusion reaction between C-60 and tert-butylcalix[8] arene were es
timated. The influence of solvent and the mechanism of precipitation w
ere discussed.