TY - JOUR
T1 - Binding Ability and Assembly Behavior of β-Cyclodextrin Complexes with 2,2′-Dipyridine and 4,4′-Dipyridine
AU - Liu, Yu
AU - Zhao, Yan Li
AU - Zhang, Heng Yi
AU - Yang, En Cui
AU - Guan, Xudong
PY - 2004/5/14
Y1 - 2004/5/14
N2 - Two channel-type supramolecular aggregations 1 and 2 were prepared by the inclusion complex of β-cyclodextrin with 2,2′-dipyridine and 4,4′-dipyridine, respectively, and their binding ability and assembly behavior were investigated comprehensively by X-ray crystallography, 1H NMR, circular dichroism spectra, and microcalorimetric titration in solution and the solid state. The obtained results revealed that the hydrogen bonds and π-π stacking interactions are crucial factors for the formation of the molecular aggregations containing β-cyclodextrin and dipyridines. The disparity of nitrogen atom position in dipyridines leads not only to the distinct crystal system and space group, i.e., monoclinic system (C2) for 1 and triclinic system (P-1) for 2, but also different binding modes and thermodynamical parameters upon complexation of 2,2′-dipyridine and 4,4′-dipyridine with β-cyclodextrin in aqueous solution.
AB - Two channel-type supramolecular aggregations 1 and 2 were prepared by the inclusion complex of β-cyclodextrin with 2,2′-dipyridine and 4,4′-dipyridine, respectively, and their binding ability and assembly behavior were investigated comprehensively by X-ray crystallography, 1H NMR, circular dichroism spectra, and microcalorimetric titration in solution and the solid state. The obtained results revealed that the hydrogen bonds and π-π stacking interactions are crucial factors for the formation of the molecular aggregations containing β-cyclodextrin and dipyridines. The disparity of nitrogen atom position in dipyridines leads not only to the distinct crystal system and space group, i.e., monoclinic system (C2) for 1 and triclinic system (P-1) for 2, but also different binding modes and thermodynamical parameters upon complexation of 2,2′-dipyridine and 4,4′-dipyridine with β-cyclodextrin in aqueous solution.
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U2 - 10.1021/jo035868x
DO - 10.1021/jo035868x
M3 - Article
C2 - 15132546
AN - SCOPUS:2442533897
VL - 69
SP - 3383
EP - 3390
JO - Journal of Organic Chemistry
JF - Journal of Organic Chemistry
SN - 0022-3263
IS - 10
ER -