NMR determination of concentration-switchable inclusion complex of a β-cyclodextrin derivative carrying a benzene group linked to a C,C-glucopyranoside spacer

Autor: Takashi Yamanoi, Kaname Katsuraya, Yoshiki Oda
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Journal of Inclusion Phenomena and Macrocyclic Chemistry. 89(1-2):189-197
ISSN: 1388-3127
Popis: This article describes the structure of the inclusion complex that a β-cyclodextrin derivative 1, which includes a benzene ring tethered to a cyclodextrin moiety via a C,C-glucopyranoside spacer, forms when its concentration is 9 mM. As we have recently reported, 1 forms an intramolecular inclusion complex at a concentration of 2 mM. By contrast, detailed NMR structural analysis revealed that at a 9 mM concentration, 1 formed a symmetrical pseudo-dimer based on intermolecular inclusion complexiation between two molecules of 1. Thus, the inclusion structures of 1 varied depending on concentration, which indicates that the structure of this β-cyclodextrin derivative could be “concentration-switchable.”
This is a post-peer-review, pre-copyedit version of an article published in Journal of Inclusion Phenomena and Macrocyclic Chemistry. The final authenticated version is available online at: http://dx.doi.org/10.1007/s10847-017-0746-0
Databáze: OpenAIRE