- Type
- absorption
- Assignments summary
- Characteristics summary
| Assignment | Symmetry | Mode | Specie(s) | Molecule/Atom | Bond | Multiplicity | Degeneracy | Contribution | Resonance |
|---|---|---|---|---|---|---|---|---|---|
| ν4 | deformation | 12CH4 | CH4 | ≥ 12C-1H | mode degeneracy | triple |
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1299 ± 0.5 | - | - | asymmetric | 8000 ± 300 | 1 | vs | vs | 25.0 |
- Texture
- crystal
- Temperature
- 25.0 ± 1.0 K
- Formation temperature
- 10.0 K
- Temperature max
- 32.0 K
Temperature
- Method #1
- spectrum measurement
- Overlap
- slightly blended
- Peak
- 1299 ± 0.5 cm-1 (peak)
- Evaluation
- validated
- Quality
- A
- Shape
- asymmetric
- Evaluation
- undefined
- Method
- extrapolated
- Absorption coefficient
- 8000 ± 300 cm-1
- Relative intensity
- 1
- Strength
- very strong (vs)
- Evaluation
- undefined
- Quality
- B
- Comments
- value at 38K (9750 cm-1) extrapolated at 30K (*0.82) using intensity ratio of first overtone 2ν3
- Method
- width x peak intensity
- Strength
- very strong (vs)
- Evaluation
- undefined
- Publications
- Data publication experiment