Modes of Binding Interaction between Viologen Guests and the Cucurbit[7]uril Host
作者:Kwangyul Moon、Angel E. Kaifer
DOI:10.1021/ol035967x
日期:2004.1.1
[structure: see text] Host-guest interactions between cucurbit[7]uril (CB7) and a series of dialkyl-4,4'-bipyridinium (viologen) dicationic guests were investigated by NMR spectroscopy. CB7 includes the aromatic nucleus of short chain viologens, but the mode of interaction is different with longer chain viologens due to the favorable hydrophobic interactions between the terminal alkyl substituents