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Supramolecular Complex Formation: A Study of the Interactions between β‐Cyclodextrin and Some Different Classes of Organic Compounds by ESI‐MS, Surface Tension Measurements, and UV/Vis and 1 H NMR Spectroscopy
Author(s) -
Guernelli Susanna,
Laganà Maria Francesca,
Mezzina Elisabetta,
Ferroni Fiammetta,
Siani Gabriella,
Spinelli Domenico
Publication year - 2003
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.200300456
Subject(s) - chemistry , supramolecular chemistry , cationic polymerization , cyclodextrin , surface tension , phosphate , nuclear magnetic resonance spectroscopy , salt (chemistry) , spectroscopy , proton nmr , organic chemistry , molecule , physics , quantum mechanics
The ability of several organic compounds [alcohols 1 and 2 , the corresponding phosphate esters 3 and 4 and their sodium salts 5 and 6 as well as some commercial surfactants such as C 14 DMAO ( 7 , zwitterionic), SDS ( 8 , anionic) and CTABr ( 9 , cationic)] to produce supramolecular complexes with β‐cyclodextrin has been investigated by four different techniques (ESI‐MS, surface tension measurements, UV/Vis and 1 H NMR spectroscopy). The data collected have allowed information about the formation of complexes and the location of the guest in the host to be gained. Comparison of the results obtained for phosphate esters and their salts, for both saturated and unsaturated derivatives, has made it possible to evaluate the factors that affect the stability of the supramolecular complexes under the different experimental conditions used. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)