1,1,2-TRIPHENYL-1,2-ETHANEDIOL - A HOST FOR CARBOXYLIC-ACIDS AND AMIDES IN COORDINATOCLATHRATES

The chiral diols (R)- and (S)-1 are found to form inclusion compounds with carboxylic acids and amides, as indicated by the relevant IR spec tra. Two clathrates, (R)-1.CH3CO2H and (S)-1.CH3NHCHO have been charac terized by their crystal structures. The interaction between the diol 1, which functions as the host compound, and the guest compounds, is b ased on hydrogen bonds. Enantiomerically pure 1 can serve as chiral so lvating agent in NMR spectroscopy.