Retardation of the molecular rotation of p-nitrophenolate ion in the cavity of a positively charged derivative of alpha-cyclodextrin by electrostaticinteractions

Authors
Ahmed, J Nagata, T Imaoka, S Matsui, E Yamamoto, T
Citation
J. Ahmed et al., Retardation of the molecular rotation of p-nitrophenolate ion in the cavity of a positively charged derivative of alpha-cyclodextrin by electrostaticinteractions, CHEM LETT, (8), 2000, pp. 960-961
Citations number
9
Categorie Soggetti
Chemistry
Journal title
CHEMISTRY LETTERS
ISSN journal
03667022 → ACNP
Issue
8
Year of publication
2000
Pages
960 - 961
Database
ISI
SICI code
0366-7022(20000805):8<960:ROTMRO>2.0.ZU;2-4
Abstract
H-1 NMR signal for the C(5)-H of A, D glucose residues of bis[6(A),6(D)-(1- pyridinio)-6(A),6(D)-deoxy]-alpha-cyclodextrin shifted downfield, whereas t hose of B, E and C, F residues shifted upfield, with the addition of p-nitr ophenol at pD 11.3. This infers that the molecular rotation of the guest is retarded in the CD cavity.