- Type
- Raman scattering
- Assignments summary
- Characteristics summary
| Assignment | Symmetry | Mode | Specie(s) | Molecule/Atom | Bond | Multiplicity | Degeneracy | Contribution | Resonance |
|---|---|---|---|---|---|---|---|---|---|
| Fe2+-O⁻ excitation | ligand-to-metal charge-transfer |
Fe2+ O⁻ |
no |
| Peak position (cm-1) |
Center position (cm-1) |
Width (cm-1) |
Shape | Asymmetry factor | Peak intensity (cm-1) |
Peak intensity relative | Peak strength | Integrated intensity (cm-2) |
Integrated intensity relative | Integrated strength | Temperature (K) |
Pressure (bar) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 510 ± 2 | - | 69.5 ± 1.5 | symmetric | 0.009 | vw | 0.074 | m | 295.0 | 1 |
- Label
- Fe2+-O⁻ excitation
- Category
- electronic transition
Evaluation
- Level
- uncertain assignment
- Evaluation
- uncertain
- Comments
- also attributed to Fe2+ excitation by Farsang et al. 2018, with ref. to Popkow et al. 1972
| # | Multiplicity type | Degeneracy | Other band |
|---|---|---|---|
| 1 | no |
- Label (type)
- Fe2+-O⁻ (ligand-to-metal charge-transfer)
Electronic modes
- Composition
- Fe>0.95, Mg<0.05, Mn<0.04
- Texture
- crystal in plot
- Temperature
- 295.0 ± 5.0 K
Temperature
- Pressure
- 1 bar
Pressure
- Laser wavelength
- 532.0 nm
- Sample orientation mode
- unoriented
- Method #1
- spectrum fit
- Fit function
- Gaussian
- Overlap
- isolated
- Peak
- 510 ± 2 cm-1 (fit peak)
- Evaluation
- validated
- Quality
- B
- Comments
- weak decreases with Mg fraction
- FWHM
- 69.5 ± 1.5 cm-1 (fwhm)
- Shape
- symmetric
- Evaluation
- validated
- Quality
- C
- Comments
- independent of Mg fraction
- Method
- baseline corrected peak intensity
- Relative intensity
- 0.009 ± 0.002
- Strength
- very weak (vw)
- Evaluation
- validated
- Quality
- D
- Comments
- dispersed - no trend
- Method
- width x peak intensity
- Relative intensity
- 0.074 ± 0.017
- Strength
- medium (m)
- Evaluation
- recommended
- Quality
- D
- Comments
- dispersed - no trend
- Publications
- SSHADE spectra