title: EPR and NMR investigation on the interactions of nitroxide probes with resorcin[4]arene molecular capsules.
abstract: EPR experiments in water-saturated CH(2)Cl(2) solution clearly indicate that oxotempo is not included inside hexameric molecular capsules of resorcin[4]arene. In fact, the tumbling rate of oxotempo only experiences minor changes when resorcinarene is present in the solution. However, NMR spectroscopic data suggest that oxotempo engages in labile hydrogen-bonding interactions with water molecules interacting with the resorcinarene molecular capsules.
authors.affiliation: Center for Supramolecular Science and Department of Chemistry, University of Miami, Coral Gables, Florida 33124-0431, USA.
authors.forename: Song
authors.initials: S
authors.lastname: Yi
authors.forename: Elisabetta
authors.initials: E
authors.lastname: Mileo
authors.forename: Angel E
authors.initials: AE
authors.lastname: Kaifer