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Digitale Medien

The conformational and binding properties of ethylbipyridinio-modifiedβ-Cyclodextrin using induced circular dichroism (1991)

Du, Yi-Qun ; Nakamura, Asao ; Toda, Fujio

Springer

Journal of inclusion phenomena and macrocyclic chemistry 10 (1991), S. 443-451

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Details

ISSN: 1573-1111

Schlagwort(e): Cyclodextrin ; ethyl viologen ; binding ability ; conformation ; steroidal guest ; complex

Quelle: Springer Online Journal Archives 1860-2000

Thema: Chemie und Pharmazie

Notizen: Abstract The conformational and binding properties of mono-6-deoxy-6[4-(1-ethyl-4-pyridinio)-1-pyridinio]-β-cyclodextrin (1) in complex formation with some guest compounds were examined by induced circular dichroism (ICD) spectra in aqueous solution. Compound 1 showed much stronger binding ability for some guest compounds (1: 1 complexes), compared withβ-cyclodextrin (β-CDx) and a positively charged β-CDx [C-6-mono-pyridino-β-CDx (2)]. Marked conformational changes of1 (the spatial position of the ethyl viologen (C2V2+) group relative to the cavity in 1) were observed upon complex formation with some guests like 1-adamantanecarboxylic acid (ACA) and sodium cholate (SC).

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01061075

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