- Type
- Raman scattering
- Assignments summary
- Characteristics summary
| Assignment | Symmetry | Mode | Specie(s) | Molecule/Atom | Bond | Multiplicity | Degeneracy | Contribution | Resonance |
|---|---|---|---|---|---|---|---|---|---|
| νLT (Eg) | Eg | translation |
(CO3)2- Na2+ |
mode degeneracy | double | ||||
| νLT (Eg) | Eg | translation |
(CO3)2- Na2+ |
mode degeneracy | double |
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 207 ± 1.5 | - | 5.5 ± 0.5 | symmetric | 0.048 | w | 295.0 | 1 |
- Label
- νLT (Eg)
- Symmetry
- Eg
- Category
- phonon mode
Evaluation
- Level
- fully assigned
- Evaluation
- validated
- Comments
- from theoretical WURM database
| # | Multiplicity type | Degeneracy | Other band |
|---|---|---|---|
| 1 | mode degeneracy | double |
- Label (type)
- νL (libration)
- Comments
- out-of-plane libration
- Label (type)
- νT (translation)
- Comments
- CO32− in-plane translation + Na2+ translation
Rotation modes
Phonon modes
- Label
- νLT (Eg)
- Symmetry
- Eg
- Category
- phonon mode
Evaluation
- Level
- fully assigned
- Evaluation
- validated
- Comments
- from theoretical WURM database
| # | Multiplicity type | Degeneracy | Other band |
|---|---|---|---|
| 1 | mode degeneracy | double |
- Label (type)
- νL (libration)
- Comments
- out-of-plane libration
- Label (type)
- νT (translation)
- Comments
- CO32− in-plane translation + Na2+ translation
Rotation modes
Phonon modes
- Composition
- Na2Mg(CO3)2
- Texture
- crystal
- 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
- 207 ± 1.5 cm-1 (various)
- Evaluation
- validated
- Quality
- B
- Comments
- shifted to 205 cm-1 with 7% Ca
- FWHM
- 5.5 ± 0.5 cm-1 (fwhm)
- Shape
- symmetric
- Evaluation
- undefined
- Quality
- B
- Method
- peak intensity
- Relative intensity
- 0.048 ± 0.01
- Strength
- weak (w)
- Evaluation
- undefined
- Quality
- D