Table 2 Relative content of Al sites and their chemical shift obtained from 27Al MAS NMR spectra after deconvolution.
From: Preparation of colourless phosphate glass by stabilising higher Fe[II] in microwave heating
Glass | Chemical shift (ppm) | % of occupancy | Glass | Chemical Shift(ppm) | % of occupancy |
|---|---|---|---|---|---|
GC0Sn | 53.32 | 0.97 | GM0Sn | 45.79 | 0.82 |
14.21 | 7.03 | 14.15 | 4.24 | ||
−14.29 | 91.99 | −14.60 | 94.94 | ||
GC0.5Sn | 55.23 | 1.16 | GM0.5Sn | 53.86 | 1.16 |
14.21 | 9.41 | 14.30 | 7.01 | ||
−14.40 | 89.43 | −14.63 | 91.83 | ||
GC1Sn | 52.56 | 0.89 | GM1Sn | 53.98 | 0.94 |
15.86 | 5.59 | 14.51 | 4.14 | ||
−14.60 | 93.52 | −14.56 | 94.92 | ||
GC1.5Sn | 53.59 | 2.08 | GM1.5Sn | 56.67 | 0.28 |
16.12 | 6.39 | 15.22 | 4.86 | ||
−14.51 | 91.53 | −14.44 | 94.86 | ||
GC2Sn | 55.46 | 0.83 | |||
14.59 | 4.62 | ||||
−14.94 | 94.54 |
