NMR Line Shape for a Rectangular Configuration of Nuclei
We present an approach to describe nuclear magnetic resonance absorption of dipolar-coupled rectangular configuration of nuclear spins associated with reorientation of ethylene bridge (–CH 2 –CH 2 –) in the crystal. The approach was applied to investigate reorientational mobility of dabco-linkers (1...
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Veröffentlicht in: | Applied magnetic resonance 2011-12, Vol.41 (2-4), p.477-482 |
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Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | We present an approach to describe nuclear magnetic resonance absorption of dipolar-coupled rectangular configuration of nuclear spins associated with reorientation of ethylene bridge (–CH
2
–CH
2
–) in the crystal. The approach was applied to investigate reorientational mobility of dabco-linkers (1,4-diazobycyclo[2,2,2]octane) in metal–organic framework [Zn
2
(bdc)
2
(dabco)] (bdc—benzenedicarboxylate). Dabco rotation around the N–N axis is shown to remain down to 80 K and the activation energy of the molecule reorientation does not exceed 12 kJ/mol. |
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ISSN: | 0937-9347 1613-7507 |
DOI: | 10.1007/s00723-011-0278-5 |