High-Resolution19F MAS and19Fβ113Cd REDO
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Lin-Shu Du; Francis Wang; Clare P. Grey
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Article
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1998
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Elsevier Science
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English
β 513 KB
has been studied with very fast magic angle spinning 19 F NMR. 19 F MAS NMR of Ba 2 WO 3 F 4 shows that the fluoride ions are disordered within the four equatorial anion positions on the W-O/F chains, but that the anion positions between the chains are fully occupied by fluorine. No difference in fl