The structure of oxygen sites in silicate glasses: conclusions from 17O NMR.
A review with refs. 17O NMR on oxide glasses provides unique new information about the coordination environment of oxygen. Examples described briefly here include the extent of disorder among non-bridging oxygen sites, distributions of Si-O-Si bond angles, the presence (or absence) of \"oxide\" ions, and the finding of significant concns. of non-bridging oxygens in a \"framework\" aluminosilicate glass.
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