Table 3.
Frequency (cm−1) 700 °C |
Frequency (cm−1) 1100 °C |
Assignments [48] |
---|---|---|
1044 | W [49] (SiO), F [50] (Eg: νasPO4) | |
1023 | W [49] (SiO) | |
1012 | W [49] (SiO) | |
997 | W [49] (SiO) | |
967 | W [49] (SiO), F [50] (E2g, Ag: νsPO4) | |
954 | νsPO4 | |
890 | W [49] | |
777 | combination mode or P-O-P defect band | |
666 | Mn2O3 [51,52], Ca-F2 | |
633 | 638 | W [49], MnO tetraedric |
591 | F [50] (Ag: δPO4) | |
582 | 581 | W [49], F [50] (E2g: δPO4), ρSiO |
518 | ||
511 | W [49] | |
431 | 429 | F [50] (E1g: δPO4) |
412 | W [49] | |
391 | W [49], Mn3+-O in Mn3O4 [51,52] | |
371 | W [49] | |
337 | W [49], Mn3O4 [51,52] | |
325 | W [49], F [50] (Ca-F2) | |
308 | F [50] (E2g1 lattice mode, Ca-F) | |
299 | W [49], F (Ca-PO4) | |
230 | W [49] | |
166 | 168 | F [50] (E2g4 lattice mode) |
140 | F [50] (Ag2 lattice mode) | |
131 | F [50] |