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Compilation of Raman spectral assignments for arsenite species from Loehr and Plane.[35]
| Speciesa | Observed bands/cm-1 |
| H3AsO3 0 or As(OH)3 0 | 710, 655 |
| H2AsO3 - or AsO(OH)2 - | 790, 610, 570, 370, 320 |
| HAsO3 2- or AsO2(OH)2- | 810?, 770?, 670–520? |
| AsO3 3- | 752, 680, 340 |
aSecond formulations given are those preferred by Loehr and Plane.[35]
