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Optical Nuclear-Polarization of Deuterium Spins - Mechanisms and Applications in Solid-State NMR

Allgeier, J. ; Buntkowsky, G. ; Hentrich, S. ; Hoffmann, W. ; Vieth, H. M. :
Optical Nuclear-Polarization of Deuterium Spins - Mechanisms and Applications in Solid-State NMR.
[Online-Edition: <Go to ISI>://WOS:A1992KT51700011]
In: Israel Journal of Chemistry, 32 (2-3) pp. 205-213.
[Artikel], (1992)

Offizielle URL: <Go to ISI>://WOS:A1992KT51700011

Kurzbeschreibung (Abstract)

A gain in detection sensitivity of more than three orders of magnitude has been achieved in high resolution solid state H-2 NMR of monocrystalline systems by applying optical nuclear polarization (ONP) via excited triplet states. The method is demonstrated for crystals of fluorene doped with optically active guest molecules which have localized triplet states and for the 1:1 mixed crystal of anthracene/tetracyanobenzene with excitonic states. The factors determining the efficiency of ONP are discussed and compared to the case of proton spin systems.

Typ des Eintrags: Artikel
Erschienen: 1992
Autor(en): Allgeier, J. ; Buntkowsky, G. ; Hentrich, S. ; Hoffmann, W. ; Vieth, H. M.
Titel: Optical Nuclear-Polarization of Deuterium Spins - Mechanisms and Applications in Solid-State NMR
Sprache: Deutsch
Kurzbeschreibung (Abstract):

A gain in detection sensitivity of more than three orders of magnitude has been achieved in high resolution solid state H-2 NMR of monocrystalline systems by applying optical nuclear polarization (ONP) via excited triplet states. The method is demonstrated for crystals of fluorene doped with optically active guest molecules which have localized triplet states and for the 1:1 mixed crystal of anthracene/tetracyanobenzene with excitonic states. The factors determining the efficiency of ONP are discussed and compared to the case of proton spin systems.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Israel Journal of Chemistry
Band: 32
(Heft-)Nummer: 2-3
Freie Schlagworte: doped fluorene crystals charge-transfer complex radical pair formation induction spectroscopy hydrogen abstraction aromatic crystals excited-states tetracyanobenzene consequence anthracene
Fachbereich(e)/-gebiet(e): Fachbereich Chemie > Physikalische Chemie
Fachbereich Chemie
Hinterlegungsdatum: 27 Okt 2014 20:33
Offizielle URL: <Go to ISI>://WOS:A1992KT51700011
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Kt517 Times Cited:5 Cited References Count:38

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