The role of water molecules in a resorcinarene capsule as probed by NMR diffusion measurements.
[structure: see text] NMR diffusion measurements were used to probe the role of water molecules in a resorcinarene capsule in a CDCl(3) solution. It was found that the water/resorcinarene ratio affects both the chemical shift and the diffusion coefficient of the water molecules. From the NMR diffusion measurements we could conclude that the major species in the chloroform solution is the hexamer having eight water molecules that are in fast exchange, on the NMR time scale, with the bulk water.
Avram
Liat
L
School of Chemistry, The Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel.
Cohen
Yoram
Y
D047250:Calixarenes; D017606:Chlorine Compounds / Q000737:chemistry; D004058:Diffusion; D016015:Logistic Models; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010649:Phenylalanine / Q000031:analogs & derivatives* / Q000737:chemistry*; D012996:Solutions / Q000737:chemistry; D012997:Solvents / Q000737:chemistry; D014867:Water / Q000737:chemistry*
D017606:Chlorine Compounds; D012996:Solutions; D012997:Solvents; C466160:resorcinarene; D014867:Water; D047250:Calixarenes; D010649:Phenylalanine