Band
Title
255.0 cm-1: ν7 of C4H2 in C4H2 - phase I
Band type
Type
absorption
Assignments summary
Assignment Symmetry Mode Specie(s) Molecule/Atom Bond Multiplicity Degeneracy Contribution Resonance
ν7 unknown bending out-p C4H2 C4H2 -C≡ C-C≡ mode degeneracy double
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)
255 ± 7 - - unknown s 95.0
Band assignment #1
Assignment
Label
ν7
Symmetry
unknown
Category
fundamental vibration

Evaluation

Level
partly assigned
Evaluation
undefined
# Multiplicity type Degeneracy Other band
1 mode degeneracy double
Primary specie
C4H2

Vibration modes

Label (type)
ν7 (bending out-p)       Bond: -C≡ C-C≡
Texture
film

Temperature

Temperature
95.0 ± 1.0 K
Comments
annealed to 70-110K
Method #1
estimation
Overlap
isolated
Peak
255 ± 7 cm-1 (peak)
Evaluation
uncertain
Quality
D
Comments
Khanna_1988 (@70K) => different phase ?
Shape
unknown
Evaluation
undefined
Quality
undefined
Method
baseline corrected peak intensity
Strength
strong (s)
Evaluation
undefined
Quality
undefined
Publication