Molecular motions and phase transitions in solid bis- n-propylammonium pentabromoantimonate

The proton nuclear magnetic resonance (NMR) second moment and spin-lattice relaxation time for polycrystalline bis- n-propylammonium pentabromoantimonate (nPBA) have been measured from 70 to 290 K. The results are interpreted in terms of the CH 3 and NH 3 group reorientations for which the activatio...

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Bibliographic Details
Published in:Solid state nuclear magnetic resonance 1994-09, Vol.3 (5), p.293-297
Main Authors: Piślewski, Narcyz, Tritt-Goc, Jadwiga, Jakubas, Ryszard
Format: Article
Language:English
Subjects:
1H nuclear magnetic resonance
Antimony - analysis
Magnetic Resonance Spectroscopy
Molecular motions
Organometallic Compounds - analysis
Propylammonium cation
Relaxation time
Second moment
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Summary:The proton nuclear magnetic resonance (NMR) second moment and spin-lattice relaxation time for polycrystalline bis- n-propylammonium pentabromoantimonate (nPBA) have been measured from 70 to 290 K. The results are interpreted in terms of the CH 3 and NH 3 group reorientations for which the activation parameters have been determined. A structural phase transition evidenced at about 220 K is found in the polycrystalline sample of nPBA.
ISSN:0926-2040
1527-3326
DOI:10.1016/0926-2040(94)90005-1