Band
Title
2976.0 cm-1: ν123 of 32S16O2 in natural SO2 - phase I
Type
absorption
Assignments summary
Assignment Symmetry Mode Specie(s) Molecule/Atom Bond Multiplicity Degeneracy Contribution Resonance
ν123 unknown combination vibration 32S16O2 SO2 =32S=16O
32S16O2
=32S=16O
no 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)
2975.5 ± 0.3 - - symmetric vw 90.0
2976 ± 0.5 - 2.2 ± 0.2 asymmetric high frequency wing 0.33 ± 0.02 vw 125.0
Label
ν123
Symmetry
unknown
Category
combination vibration

Evaluation

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

Vibration modes

Label (type)
1 (stretching sym.)       Bond: =32S=16O
ν2 (bending)       Bond: 32S16O2
ν3 (stretching asym.)       Bond: =32S=16O

Temperature

Temperature
90.0 ± 15.0 K
Method #1
spectrum measurement
Overlap
unknown
Peak
2975.5 ± 0.3 cm-1 (fit peak)
Evaluation
undefined
Quality
A
Shape
symmetric
Evaluation
undefined
Method
extrapolated
Strength
very weak (vw)
Evaluation
undefined

Temperature

Temperature
125.0 ± 5.0 K
Formation temperature
35.0 K
Method #1
spectrum measurement
Overlap
isolated
Peak
2976 ± 0.5 cm-1 (fit peak)
Evaluation
undefined
Quality
A
FWHM
2.2 ± 0.2 cm-1 (fwhm)
Shape
asymmetric high frequency wing
Evaluation
undefined
Quality
A
Method
baseline corrected peak intensity
Absorption coefficient
0.33 ± 0.02 cm-1
Strength
very weak (vw)
Evaluation
undefined
Quality
C