Y. Sueishi et al., Differential pressure effect on bimodal inclusion complex of beta-cycloderitrin with a nitroxide radical probe as studied with electron paramagnetic resonance, CHEM LETT, (7), 2000, pp. 792-793
Differential pressure effect was found in the inclusion equilibrium of bimo
dal inclusion (phenyl-in and t-butyl-in) complexes of beta-cyclodextrin wit
h the free-radical probe diphenylmethyl t-butyl nitroxide. A high-pressure
electron paramagnetic resonance (EPR) system was employed to determine the
shift of the EPR spectra under high static pressure. With increasing extern
al pressure, the equilibrium between phenyl-in and t-butyl-in complexes shi
fts to the t-butyl-in side.