Band
Title
3243.5 cm-1: ν3 of C2H2 in C2H2 - Metastable phase
Band type
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)
3243.5 ± 1 - - undefined 0.22 vs 50.0
Band assignment #1
Assignment
Label
ν3
Category
fundamental vibration

Evaluation

Level
partly assigned
Evaluation
uncertain
# Multiplicity type Degeneracy Other band
1 no
Primary specie
C2H2

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
strongly blended
Peak
3243.5 ± 1 cm-1 (peak)
Evaluation
undefined
Quality
B
Shape
undefined
Evaluation
undefined
Quality
undefined
Method
width x peak intensity
Evaluation
validated
Quality
undefined
Publications