Band
Title
104.0 cm-1: νT of C2H2 in C2H2 - phase II
Band type
Type
absorption
Assignments summary
Assignment Symmetry Mode Specie(s) Molecule/Atom Bond Multiplicity Degeneracy Contribution Resonance
νT Bu translation C2H2 C2H2 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)
104 ± 0.5 - 3.3 ± 0.3 asymmetric 0.82 ± 0.1 1.05e-05 vw 2.7 ± 0.1 s 65.0
96.5 ± 0.5 - 7.2 ± 0.3 asymmetric 0.12 ± 0.02 vvw 0.85 ± 0.1 s 125.0
Band assignment #1
Assignment
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 ?

Phonon modes

Label (type)
νT (translation)
Texture
film

Temperature

Temperature
65.0 ± 10.0 K
Temperature max
80.0 K
Method #1
spectrum measurement
Overlap
slightly blended
Peak
104 ± 0.5 cm-1 (peak)
Evaluation
validated
Quality
A
FWHM
3.3 ± 0.3 cm-1 (fwhm)
Shape
asymmetric
Evaluation
undefined
Quality
B
Method
calculated
Absorption coefficient
0.82 ± 0.1 cm-1
Relative intensity
1.05e-05 ± 1.0e-06
Strength
very weak (vw)
Evaluation
undefined
Quality
D
Texture
film

Temperature

Temperature
125.0 ± 8.0 K
Temperature max
133.0 K
Method #1
spectrum measurement
Overlap
slightly blended
Peak
96.5 ± 0.5 cm-1 (peak)
Evaluation
validated
Quality
A
FWHM
7.2 ± 0.3 cm-1 (fwhm)
Shape
asymmetric
Evaluation
undefined
Quality
B
Method
calculated
Absorption coefficient
0.12 ± 0.02 cm-1
Strength
very very weak (vvw)
Evaluation
undefined
Quality
D
Publications