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Dynamic Aspects of Cyclodextrin Host–Guest Inclusion as Studied by an EPR Spin‐Probe Technique
Author(s) -
Lucarini Marco,
Luppi Barbara,
Pedulli Gian Franco,
Roberts Brian P.
Publication year - 1999
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/(sici)1521-3765(19990702)5:7<2048::aid-chem2048>3.0.co;2-u
Subject(s) - electron paramagnetic resonance , nitroxide mediated radical polymerization , cyclodextrin , inclusion (mineral) , kinetics , chemistry , radical , spectral line , spin probe , spin (aerodynamics) , chemical physics , materials science , nuclear magnetic resonance , organic chemistry , polymer , mineralogy , physics , thermodynamics , radical polymerization , quantum mechanics , astronomy , copolymer
Major changes in the EPR parameters of benzyl tert ‐butyl nitroxide and other dialkyl nitroxides on complexation by cyclodextrins (CDs) make these radicals particularly suitable probes for studying inclusion phenomena, because the signals for the free and included species are well separated. Furthermore, selective line broadening of the EPR spectra enables the kinetics of inclusion to be investigated [Eq. (a)].