Band
Title
3227.0 cm-1: ν3 of C2H2 in C2H2 - Metastable phase
Type
absorption
Assignments summary
Assignment Symmetry Mode Specie(s) Molecule/Atom Bond Multiplicity Degeneracy Contribution Resonance
ν3 stretching asym. C2H2 C2H2 ≥ C-H no
Characteristics summary
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)
3227 ± 0.5 - 11 asymmetric high frequency wing 1 vs 50.0
Label
ν3
Category
fundamental vibration

Evaluation

Level
partly assigned
Evaluation
validated
# Multiplicity type Degeneracy Other band
1 no

Vibration modes

Label (type)
ν3 (stretching asym.)       Bond: ≥ C-H
Texture
film

Temperature

Temperature
50.0 ± 5.0 K
Formation temperature
12.0 K
Temperature max
50.0 K
Method #1
spectrum measurement
Overlap
moderately blended
Peak
3227 ± 0.5 cm-1 (peak)
Evaluation
undefined
Quality
A
FWHM
11 cm-1 (fwhm)
Shape
asymmetric high frequency wing
Evaluation
undefined
Quality
undefined
Method
baseline corrected peak intensity
Relative intensity
1
Strength
very strong (vs)
Evaluation
undefined
Quality
A
Method
width x peak intensity
Evaluation
validated
Quality
undefined