Water-mediated association provides an ion pair receptor

FW Kotch, V Sidorov, YF Lam, KJ Kayser…

Index: Kotch, Frank W.; Sidorov, Vladimir; Lam, Yiu-Fai; Kayser, Katherine J.; Li, Hojun; Kaucher, Mark S.; Davis, Jeffery T. Journal of the American Chemical Society, 2003 , vol. 125, # 49 p. 15140 - 15150

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Citation Number: 121

Abstract

In this paper, we report on the formation and properties of a water-stabilized dimer comprising calix [4] arene-guanosine conjugate cG 2. The 1, 3-alternate calixarene cG 2 was poorly soluble in dry CDCl3 and gave an ill-resolved NMR spectrum, consistent with its nonspecific aggregation. The compound was much more soluble in water-saturated CDCl3. Two sets of well-resolved 1H NMR signals for the guanosine residues in cG 2, present in a ...