Extraction of Radio??Labelled Xanthine Derivatives by Artificial Receptors: Deep Insight into the Association Behaviour

…, H Stephan, R Froehlich, SR Waldvogel

Index: Bomkamp, Martin; Siering, Carsten; Landrock, Karin; Stephan, Holger; Froehlich, Roland; Waldvogel, Siegfried R. Chemistry - A European Journal, 2007 , vol. 13, # 13 p. 3724 - 3732

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Citation Number: 26

Abstract

Abstract Association constants for the interaction of almost insoluble substrates with triphenylene ketal-based receptors in toluene have been determined by means of an extraction method employing the corresponding radio-labelled substrates. Flexible and more polar receptors tend to aggregate and exhibit inferior extraction qualities. Binding constants in toluene were found to be in the range 10 5–10 7 m− 1, which is significantly ...