Investigation of sodium distribution in phosphate glasses using spin-echo 23Na NMR

Article Abstract:

Issues concerning the use of 23Na spin-echo nuclear magnetic resonance spectroscopy to study the Na-Na distribution for a series of sodium phosphate glasses are discussed.

Sodium phosphates

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Combined Ab initio computational and solid-state (super 17)O MAS NMR studies of crystalline P(sub 2)O(sub 5)

Article Abstract:

A relative complete description of the (super 17)ONR parameters for h-P(sub 2)O(sub 5)-is obtained with the combined use of (super 17)O MAS NMR at multiple magnetic field strengths along with the 2DMQMAS and STMAS NMR experiments. These results with a well-defined crystal structure provide experimental verification of the ab initio theoretical predictions for the three different polymorphs of P(sub 2)O(sub 5).

Science & research, All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Phosphorus & Compounds, Elemental Phosphorus, Nuclear magnetic resonance spectroscopy, Crystals, Crystal structure, Magnetic properties, Phosphorus, Phosphorus (Chemical element)

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Structural characterization of glass from the inversion of 23Na and 27AL 3Q-MAS NMR spectra

Article Abstract:

Issues concerning the use of MQ-MAS spectroscopy on two complex glasses, using the inversion technique, are discussed.

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