Band
Title
4437.0 cm-1: ν23 of NH3 in natural NH3 - phase I
Type
absorption
Assignments summary
Assignment Symmetry Mode Specie(s) Molecule/Atom Bond Multiplicity Degeneracy Contribution Resonance
ν23 combination vibration NH3 NH3 NH3
>N-H
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)
4437 ± 1 - 32 ± 5 undefined 400 ± 30 0.0083 s m 90.0
Label
ν23
Category
combination vibration

Evaluation

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

Vibration modes

Label (type)
ν2 (deformation sym.)       Bond: NH3
ν3 (stretching asym.)       Bond: >N-H
Texture
film

Temperature

Temperature
90.0 ± 15.0 K
Method #1
spectrum measurement
Overlap
strongly blended
Peak
4437 ± 1 cm-1 (peak)
Evaluation
validated
Quality
B
FWHM
32 ± 5 cm-1 (hwhm)
Shape
undefined
Evaluation
undefined
Quality
E
Method
baseline corrected peak intensity
Absorption coefficient
400 ± 30 cm-1
Relative intensity
0.0083 ± 6.0e-04
Strength
strong (s)
Evaluation
undefined
Quality
C
Method
estimated
Strength
medium (m)
Evaluation
undefined