Detection of Paramagnetic pH-Dependent Inclusion Complexes between β-Cyclodextrin Dimers and Nitroxide Radicals
✍ Scribed by Paola Franchi; Marco Lucarini; Gian Franco Pedulli
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 118 KB
- Volume
- 115
- Category
- Article
- ISSN
- 0044-8249
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## Abstract The addition of β‐cyclodextrin to a solution containing β‐benzyloxy‐α‐propionic‐substituted DOTA‐ and DTPA‐Gd(III) complexes leads to the formation of inclusion compounds whose equilibrium constants have been determined by NMR titrations. The main effect associated with the formation of
## Abstract The effect of pH on complex formation between β‐CD and the enantiomers of the dipeptides Ala‐Phe, Ala‐Tyr and Asp‐PheOMe was investigated at 298.15 K by CE and calorimetry. β‐CD displayed a higher enantioselectivity toward the protonated peptides compared to their zwitterionic forms. Wh