- Type
- absorption
- Assignments summary
- Characteristics summary
| Assignment | Symmetry | Mode | Specie(s) | Molecule/Atom | Bond | Multiplicity | Degeneracy | Contribution | Resonance |
|---|---|---|---|---|---|---|---|---|---|
| νT | Bu | translation | C2H2 | C2H2 | 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 127 ± 2 | - | 4.2 ± 0.3 | unknown | 1 ± 0.07 | 1.25e-05 | vw | 4.1 ± 0.1 | s | 20.0 | |||
| 124.5 ± 1 | - | 4.5 ± 0.3 | symmetric | 0.75 ± 0.05 | 9.5e-06 | vw | 3.3 ± 0.1 | s | 65.0 | |||
| 116 ± 1 | - | 8.2 ± 0.3 | symmetric | 0.1 ± 0.02 | vvw | 0.7 ± 0.15 | s | 125.0 |
- Label
- νT
- Symmetry
- Bu
- Category
- phonon mode
Evaluation
- Level
- partly assigned
- Evaluation
- undefined
- Comments
- From Anderson et al. 1966, 1985
| # | Multiplicity type | Degeneracy | Other band |
|---|---|---|---|
| 1 | no |
- Primary specie
- C2H2
- Comments
- B1u ?
- Label (type)
- νT (translation)
Phonon modes
- Texture
- film
- Temperature
- 20.0 ± 10.0 K
- Temperature max
- 70.0 K
Temperature
- Method #1
- spectrum measurement
- Overlap
- unknown
- Peak
- 127 ± 2 cm-1 (peak)
- Evaluation
- validated
- Quality
- B
- FWHM
- 4.2 ± 0.3 cm-1 (fwhm)
- Shape
- unknown
- Evaluation
- undefined
- Quality
- B
- Method
- calculated
- Absorption coefficient
- 1 ± 0.07 cm-1
- Relative intensity
- 1.25e-05 ± 1.0e-06
- Strength
- very weak (vw)
- Evaluation
- undefined
- Quality
- C
- Texture
- film
- Temperature
- 65.0 ± 10.0 K
- Temperature max
- 80.0 K
Temperature
- Method #1
- spectrum measurement
- Overlap
- slightly blended
- Peak
- 124.5 ± 1 cm-1 (peak)
- Evaluation
- validated
- Quality
- B
- FWHM
- 4.5 ± 0.3 cm-1 (fwhm)
- Shape
- symmetric
- Evaluation
- undefined
- Quality
- B
- Method
- calculated
- Absorption coefficient
- 0.75 ± 0.05 cm-1
- Relative intensity
- 9.5e-06 ± 1.0e-06
- Strength
- very weak (vw)
- Evaluation
- undefined
- Quality
- C
- Texture
- film
- Temperature
- 125.0 ± 8.0 K
- Temperature max
- 133.0 K
Temperature
- Method #1
- spectrum measurement
- Overlap
- slightly blended
- Peak
- 116 ± 1 cm-1 (peak)
- Evaluation
- validated
- Quality
- B
- FWHM
- 8.2 ± 0.3 cm-1 (fwhm)
- Shape
- symmetric
- Evaluation
- undefined
- Quality
- B
- Method
- calculated
- Absorption coefficient
- 0.1 ± 0.02 cm-1
- Strength
- very very weak (vvw)
- Evaluation
- undefined
- Quality
- D