Band
Title
2139.0 cm-1: ν1 of 12C16O in natural CO - phase alpha
Type
absorption
Assignments summary
Assignment Symmetry Mode Specie(s) Molecule/Atom Bond Multiplicity Degeneracy Contribution Resonance
ν1 T stretching 12C16O CO 12C⁻≡ 16O⁺ 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)
2139 ± 0.7 - 2.5 ± 1 gaussian 90000 ± 5000 1 vvs 2.4e+05 ± 5000 1 vvs 23.0
Label
ν1
Symmetry
T
Category
fundamental vibration
Method
comparison with gas phase

Evaluation

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

Vibration modes

Label (type)
ν1 (stretching)       Bond: 12C⁻≡ 16O⁺
Comments
Ag

Temperature

Temperature
23.0 ± 5.0 K
Method #1
spectrum fit
Fit function
Gaussian
Overlap
isolated
Peak
2139 ± 0.7 cm-1 (various)
Evaluation
validated
Quality
A
FWHM
2.5 ± 1 cm-1 (fwhm)
Shape
gaussian
Evaluation
validated
Quality
C
Method
fit intensity
Absorption coefficient
90000 ± 5000 cm-1
Relative intensity
1
Strength
very very strong (vvs)
Evaluation
undefined
Quality
C
Method
width x peak intensity
Absorption coefficient
240000 ± 5000 cm-2
Relative intensity
1
Strength
very very strong (vvs)
Evaluation
undefined
Quality
B