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NMR EVIDENCE FOR 5-COORDINATED AND 6-COORDINATED ALUMINUM FLUORIDE COMPLEXES IN F-BEARING ALUMINOSILICATE GLASSES
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UNSPECIFIED (1991) NMR EVIDENCE FOR 5-COORDINATED AND 6-COORDINATED ALUMINUM FLUORIDE COMPLEXES IN F-BEARING ALUMINOSILICATE GLASSES. AMERICAN MINERALOGIST, 76 (1-2). pp. 309-312.
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Abstract
Anhydrous glasses of jadeite + NaF and jadeite + cryolite compositions were quenched from melts at 1250-degrees-C and 3.0-3.5 kbar. F-19 to Al-27 cross-polarization MAS-NMR experiments at a magnetic field of 8.45 T and single pulse Al-27 MAS-NMR experiments at 14.1 T demonstrated the presence of [4]Al, [5]Al, and [6]Al in both glasses. The [5]Al is thought to be present in AlF5(2-) complexes, a previously unknown species.
| Item Type: | Journal Item | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QE Geology | ||||
| Journal or Publication Title: | AMERICAN MINERALOGIST | ||||
| Publisher: | MINERALOGICAL SOC AMER | ||||
| ISSN: | 0003-004X | ||||
| Official Date: | January 1991 | ||||
| Dates: |
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| Volume: | 76 | ||||
| Number: | 1-2 | ||||
| Number of Pages: | 4 | ||||
| Page Range: | pp. 309-312 | ||||
| Publication Status: | Published |
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