- Type
- Raman scattering
- Assignments summary
- Characteristics summary
| Assignment | Symmetry | Mode | Specie(s) | Molecule/Atom | Bond | Multiplicity | Degeneracy | Contribution | Resonance |
|---|---|---|---|---|---|---|---|---|---|
| ν3 | stretching asym. | 12CH4 | CH4 | ≥ 12C-1H | mode degeneracy | other | |||
| ν3 + nνR | stretching asym. | 12CH4 | CH4 | ≥ 12C-1H | mode degeneracy | other | unknown |
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3030 ± 4 | - | 100 ± 5 | asymmetric | s | vs | 77.0 |
- Label
- ν3 + nνR
- Category
- fundamental vibration
Evaluation
- Level
- partly assigned
- Evaluation
- uncertain
- Comments
- unresolved rotational structure
- Contribution level
- unknown
- Contribution comments
- blended rotational structure
| # | Multiplicity type | Degeneracy | Other band |
|---|---|---|---|
| 1 | mode degeneracy | other |
- Primary specie
- 12CH4
- Label (type)
- ν3 (stretching asym.) Bond: ≥ 12C-1H
- Label (type)
- nνR (hindered rotation)
Vibration modes
Rotation modes
- Texture
- crystal
- Temperature
- 77.0 ± 1.0 K
- Formation temperature
- 90.7 K
- Temperature max
- 90.7 K
Temperature
- Sample orientation mode
- unoriented
- Polarization orientation mode
- depolarized
- Comments
- Hg lines
- Method #1
- spectrum measurement
- Method #2
- spectrum measurement
- Overlap
- isolated
- Peak
- 3030 ± 4 cm-1 (peak)
- Evaluation
- validated
- Quality
- C
- FWHM
- 100 ± 5 cm-1 (fwhm)
- Shape
- asymmetric
- Evaluation
- validated
- Quality
- E
- Method
- extrapolated
- Strength
- strong (s)
- Evaluation
- validated
- Quality
- undefined
- Method
- extrapolated
- Strength
- very strong (vs)
- Quality
- undefined