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用分光光度滴定法在25．0℃时测定了不同pH值下α-，β-，γ-环糊精以及1mol／LNaOH水溶液中α-和β-环糊精双核铜配合物与4-取代苯酚形成超分子配合物的稳定常数．化学计量法表明，主体环糊精及环糊精双核铜配合物与客体4-取代苯酚形成了1：1的超分子配合物．从主-客体间的尺寸关系、pH值、多点识别和诱导契合作用等因素讨论了环糊精及环糊精双核铜配合物对客体4-取代苯酚的分子识别机制．结果表明，β-环糊精双核铜配合物对4-取代苯酚具有特殊的键合能力和分子选择性。
Spectrophotometric titration was carried out at 25.0 ℃ to determine the effects of α- and β-cyclodextrin binuclear copper complex and 4-substitution at different pH values on α-, β-, γ-cyclodextrin and 1mol / L NaOH aqueous solution Stability constants of phenol-forming supramolecular complexes. Stoichiometry showed that the host cyclodextrin and cyclodextrin dinuclear copper complex formed a 1: 1 supramolecular complex with guest 4-substituted phenol. The molecular recognition mechanism of guest 4-substituted phenol by cyclodextrins and cyclodextrin binuclear copper complexes was discussed from the dimension-size relationship between host-guest, pH value, multi-point recognition and induced interaction. The results showed that β-cyclodextrin binuclear copper complex has special bonding ability and molecular selectivity to 4-substituted phenol.