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31 P NMR study of magnesium phosphate glasses

Journal of Non-Crystalline Solids, ISSN: 0022-3093, Vol: 283, Issue: 1, Page: 88-94
2001
  • 62
    Citations
  • 0
    Usage
  • 49
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    62
    • Citation Indexes
      62
  • Captures
    49

Article Description

1-D magic angle spinning (MAS) and 2-D double quantum solid-state 31P nuclear magnetic resonance (NMR) investigations have been carried out on (MgO) x (P 2 O 5 ) 1−x glasses over compositional range from x =0.44 to 0.59. The distribution of the Q n phosphate units, obtained from the simulation of 31P MAS spectra, is close to a binary distribution of bridging and non-bridging oxygen atoms, indicating that the Mg 2+ cations act as network modifiers. High-resolution 31P double quantum NMR is used to probe the intermediate range order in phosphate glasses and suggests that the anomalous behavior near the metaphosphate composition is due to a change from ring structures to phosphate chains.

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