Table 4: Position of Raman peak ν2 and half-width (widening - Γ) (cm-1) for well crystallized 1) Intermediate; 2) and disordered todorokite; 3) From Pacific Ocean bottom between 100 and 600 cm-1.
MODE | 1 | 2 | 3 |
ν3 High wavenumber stretching Mn-O mode Half-width (Γ) of 640 cm-1 band |
640 10-15 |
620 20-25 |
610 > 30-35 |