Buntkowsky, G. ; Hoffmann, W. ; Vieth, H. M. (1999)
Optical nuclear polarization for sensitivity enhancement of H-2 NMR single-crystal studies.
In: Applied Magnetic Resonance, 17 (2-3)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
A gain in detection sensitivity of more than three orders of magnitude is achieved in high-resolution solid-stare H-2 nuclear magnetic resonance of monocrystalline fluorene-d(10) by applying optical nuclear polarization via excited tripler states of acridine-h, guest molecules. The sensitivity gain is utilized to measure the angular dependence (rotation pattern) of the H-2 nuclear magnetic resonance lines. In this way the principal values and orientations of all H-2 quadrupolar tensors are determined. Except for the methylene deuterons. all tensors belonging to the same molecule have one principal axis in common, namely the axis perpendicular to the molecular plane, showing that in the crystal lattice the fluorene molecule is in a planar configuration.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 1999 |
| Autor(en): | Buntkowsky, G. ; Hoffmann, W. ; Vieth, H. M. |
| Art des Eintrags: | Bibliographie |
| Titel: | Optical nuclear polarization for sensitivity enhancement of H-2 NMR single-crystal studies |
| Sprache: | Englisch |
| Publikationsjahr: | 1999 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Applied Magnetic Resonance |
| Jahrgang/Volume einer Zeitschrift: | 17 |
| (Heft-)Nummer: | 2-3 |
| URL / URN: | http://apps.webofknowledge.com/full_record.do?product=WOS&se... |
| Kurzbeschreibung (Abstract): | A gain in detection sensitivity of more than three orders of magnitude is achieved in high-resolution solid-stare H-2 nuclear magnetic resonance of monocrystalline fluorene-d(10) by applying optical nuclear polarization via excited tripler states of acridine-h, guest molecules. The sensitivity gain is utilized to measure the angular dependence (rotation pattern) of the H-2 nuclear magnetic resonance lines. In this way the principal values and orientations of all H-2 quadrupolar tensors are determined. Except for the methylene deuterons. all tensors belonging to the same molecule have one principal axis in common, namely the axis perpendicular to the molecular plane, showing that in the crystal lattice the fluorene molecule is in a planar configuration. |
| Freie Schlagworte: | doped aromatic crystals radical pair formation deuteron relaxation excited-states fluorene onp c13h10 regime |
| Zusätzliche Informationen: | 287GA Times Cited:5 Cited References Count:50 |
| Fachbereich(e)/-gebiet(e): | 07 Fachbereich Chemie 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Physikalische Chemie |
| Hinterlegungsdatum: | 27 Okt 2014 20:37 |
| Letzte Änderung: | 28 Mai 2019 09:51 |
| PPN: | |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum