Research Article
Spectral Investigation of Crystalline (CuHPO4, Cu2P4O12, and Cu2P8O22) and Glassy Copper Phosphates
Table 2
Data of the infrared spectra of CuHPO4, Cu2P4O12, Cu2P8O22, glass 3 (17 mol% CuO + 1 mol% H2O (ultra)), and glass 4 (50 mol% CuO (meta)); data in cm−1; s: strong; m: middle; w: weak, b: broad.
| | | CuHPO4 | Cu2P4O12 | Cu2P8O22 | Glass 3 | Glass 4 |
| | ν(OH) | 3130 m, b | 3410 w, b | — | — | — |
| | ν(P=O), ν as(PO2) | 1214 w | 1325 m
1295 m
1279 m | 1360 w
1330 m
1300 m | 1396 w
1364 s
1310 m
1274 w | 1375 w
1326 w
1295 m
1251 s
1211 w |
| | ν
s(PO2) | 1113 m
1065 m | 1130 w
1100 w | 1190 w
1150 m
1140 w
1110 m | 1167 w
1109 m | 1166 w
1116 m |
| | ν
as(P–O) | 1043 s
1005 s
914 m | 1042 s
1013 m | 1030 w
995 m
960 s
930 s | 1046 m
1003 m
955 s
939 w | 1062 s
992 m
944 m
919 w |
| | ν
s(P–O) | — | 725 m, b | 760 m
750 w
710 m
690 m
640 m | 760 m, b
670 m, b | 750 m, b |
| | Deformation vibration | 611 w
578 m
544 w
571 m | 578 w
562 m
521 m
498 m
461 w | 570 w
550 m
500 s
470 s
440 m
410 w | 470 m, b | 510 m, b |
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