- Type
- Raman scattering
- Assignments summary
- Characteristics summary
| Assignment | Symmetry | Mode | Specie(s) | Molecule/Atom | Bond | Multiplicity | Degeneracy | Contribution | Resonance |
|---|---|---|---|---|---|---|---|---|---|
| ν4a (Eg) | Eg | deformation in-p | (CO3)2- | (CO3)2- | mode degeneracy | double | full |
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 735.5 ± 2.25 | - | 17.5 ± 2.5 | asymmetric low frequency wing | 0.035 | w | 0.05 | w | 295.0 | 1 |
- Label
- ν4a (Eg)
- Symmetry
- Eg
- Category
- fundamental vibration
Evaluation
- Level
- partly assigned
- Evaluation
- validated
- Contribution level
- full
| # | Multiplicity type | Degeneracy | Other band |
|---|---|---|---|
| 1 | mode degeneracy | double | (CO3)2- |
- Primary specie
- (CO3)2-
- Label (type)
- ν4a (deformation in-p) Bond: (CO3)2-
- Comments
- O-C-O in-plane deformation
Vibration modes
- Composition
- 5%
- 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
- various
- Overlap
- isolated
- Peak
- 735.5 ± 2.25 cm-1 (fit peak)
- Evaluation
- validated
- Quality
- B
- Comments
- increases with Mg fraction
- FWHM
- 17.5 ± 2.5 cm-1 (fwhm)
- Shape
- asymmetric low frequency wing
- Evaluation
- validated
- Quality
- D
- Comments
- decreases with Mg fraction
- Method
- baseline corrected peak intensity
- Relative intensity
- 0.035 ± 0.01
- Strength
- weak (w)
- Evaluation
- validated
- Quality
- E
- Comments
- increases with Mg fraction
- Method
- width x peak intensity
- Relative intensity
- 0.05 ± 0.001
- Strength
- weak (w)
- Evaluation
- recommended
- Quality
- B
- Comments
- decreases with Mg fraction
- Publications
- SSHADE spectra
-
- Schmitt, Bernard; Montagnac, Gilles (2023): MIR-FIR normalized Raman spectrum (532 nm) of Fe-Magnesite (Ojos Negros, Spain) - grain M2-G9 - Mg# = 52.4%. Version 1. SSHADE/DRIMS (OSUG Data Center). Dataset/Spectral Data.
- Schmitt, Bernard; Montagnac, Gilles (2023): MIR-FIR normalized Raman spectrum (532 nm) of Fe-Magnesite - grain M2-H4 - Mg# = 69.2%. Version 1. SSHADE/DRIMS (OSUG Data Center). Dataset/Spectral Data.
- Schmitt, Bernard; Montagnac, Gilles (2025): MIR-FIR normalized Raman spectrum (532 nm) of Fe-Magnesite (Pfitsch Valley, Italy) - grain M4-G3 - Mg# = 82.8%. Version 1. SSHADE/DRIMS (OSUG Data Center). Dataset/Spectral Data.
- External spectra