Title | Study of xenon binding in cryptophane-A using laser-induced NMR polarization enhancement |
Publication Type | Journal Article |
Year of Publication | 1999 |
Authors | Luhmer M., Goodson B.M, Song Y.Q, Laws D.D, Kaiser L., Cyrier M.C, Pines A |
Journal | Journal of the American Chemical Society |
Volume | 121 |
Issue | 14 |
Pagination | 3502-3512 |
Date Published | Apr 14 |
ISBN Number | 0002-7863 |
Accession Number | WOS:000079884800033 |
Keywords | SPECTROSCOPY |
Abstract | In solution, spin-polarization transfer between laser-polarized xenon and the hydrogen nuclei of nearby molecules leads to signal enhancements in the resolved H-1 NMR spectrum, offering new opportunities for probing the chemical environment of xenon atoms. Following binding of laser-polarized xenon to molecules of cryptophane-A, selective enhancements of the H-1 NMR signals were observed. A theoretical framework for the interpretation of such experimental results is provided, and the spin polarization-induced nuclear Overhauser effects are shown to yield information about the molecular environment of xenon. The observed selective H-1 enhancements allowed xenon-proton internuclear distances to be estimated. These distances reveal structural characteristics of the complex, including the preferred molecular conformations adopted by cryptophane-A upon binding of xenon. |
URL | <Go to ISI>://WOS:000079884800033 |
DOI | 10.1021/Ja9841916 |
Short Title | Study of xenon binding in cryptophane-A using laser-induced NMR polarization enhancement |
Study of xenon binding in cryptophane-A using laser-induced NMR polarization enhancement
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