- Type
- absorption
- Assignments summary
- Characteristics summary
| Assignment | Symmetry | Mode | Specie(s) | Molecule/Atom | Bond | Multiplicity | Degeneracy | Contribution | Resonance |
|---|---|---|---|---|---|---|---|---|---|
| ν3+ν4 | unknown | combination vibration | C2H2 | C2H2 |
≥ C-H -C ≡ C-H |
unknown | unknown | ||
| ν2+2ν4+ν5 | unknown | combination vibration | C2H2 | C2H2 |
-C≡ C- -C ≡ C-H -C ≡ C-H |
unknown | 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3857 ± 1 | - | - | sharp shoulder | 13 ± 1 | 1.7e-04 | w | 20.0 | |||||
| 3857.5 ± 1 | - | - | sharp shoulder | 17 ± 1 | 2.2e-04 | w | 65.0 |
- Label
- ν3+ν4
- Symmetry
- unknown
- Category
- combination vibration
Evaluation
- Level
- partly assigned
- Evaluation
- uncertain
- Comments
- Bottger & Eggers 1964
- Contribution level
- unknown
| # | Multiplicity type | Degeneracy | Other band |
|---|---|---|---|
| 1 | unknown |
- Primary specie
- C2H2
- Label
- ν2+2ν4+ν5
- Symmetry
- unknown
- Category
- combination vibration
Evaluation
- Level
- partly assigned
- Evaluation
- uncertain
- Comments
- Hudson et al. 2014
- Contribution level
- unknown
| # | Multiplicity type | Degeneracy | Other band |
|---|---|---|---|
| 1 | unknown |
- Primary specie
- C2H2
- Texture
- film
- Temperature
- 20.0 ± 10.0 K
- Temperature max
- 70.0 K
Temperature
- Method #1
- spectrum measurement
- Overlap
- moderately blended
- Peak
- 3857 ± 1 cm-1 (peak)
- Evaluation
- validated
- Quality
- B
- Shape
- sharp shoulder
- Evaluation
- undefined
- Quality
- undefined
- Method
- estimated
- Absorption coefficient
- 13 ± 1 cm-1
- Relative intensity
- 1.7e-04 ± 1.5e-05
- Strength
- weak (w)
- Evaluation
- undefined
- Quality
- C
- Method
- width x peak intensity
- Evaluation
- validated
- Quality
- undefined
- Texture
- film
- Temperature
- 65.0 ± 10.0 K
- Temperature max
- 70.0 K
Temperature
- Method #1
- spectrum measurement
- Overlap
- moderately blended
- Peak
- 3857.5 ± 1 cm-1 (peak)
- Evaluation
- validated
- Quality
- B
- Shape
- sharp shoulder
- Evaluation
- undefined
- Quality
- undefined
- Method
- estimated
- Absorption coefficient
- 17 ± 1 cm-1
- Relative intensity
- 2.2e-04 ± 1.5e-05
- Strength
- weak (w)
- Evaluation
- undefined
- Quality
- C
- Method
- width x peak intensity
- Evaluation
- validated
- Quality
- undefined