Band
Title
1961.0 cm-1: ν2 ? of C2H2 in C2H2 - Metastable phase
Band type
Type
absorption
Assignments summary
Assignment Symmetry Mode Specie(s) Molecule/Atom Bond Multiplicity Degeneracy Contribution Resonance
ν2 ? stretching C2H2 C2H2 -C≡ C- unknown
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)
1961 ± 0.5 - - asymmetric low frequency wing 0.0023 m 50.0
Band assignment #1
Assignment
Label
ν2 ?
Category
fundamental vibration

Evaluation

Level
not assigned
Evaluation
undefined
Comments
from SSHADE
# Multiplicity type Degeneracy Other band
1 unknown
Primary specie
C2H2

Vibration modes

Label (type)
ν2 ? (stretching)       Bond: -C≡ C-
Texture
film

Temperature

Temperature
50.0 ± 5.0 K
Formation temperature
12.0 K
Temperature max
50.0 K
Method #1
spectrum measurement
Overlap
isolated
Peak
1961 ± 0.5 cm-1 (peak)
Evaluation
undefined
Quality
A
Shape
asymmetric low frequency wing
Evaluation
undefined
Quality
undefined
Method
baseline corrected peak intensity
Relative intensity
0.0023 ± 2.0e-04
Strength
medium (m)
Evaluation
undefined
Quality
C
Method
width x peak intensity
Evaluation
validated
Quality
undefined
Publications