Band
Title
6721.0 cm-1: 2ν1 of NH3 and 2ν3 of NH3 in natural NH3 - phase I
Band type
Type
absorption
Assignments summary
Assignment Symmetry Mode Specie(s) Molecule/Atom Bond Multiplicity Degeneracy Contribution Resonance
2ν1 stretching sym. NH3 NH3 >N-H no
2ν3 stretching asym. 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)
6721 ± 5 - - undefined w 20.0
6721 ± 5 - - undefined 18 ± 8 4.0e-04 w w 90.0
Band assignment #1
Assignment
Label
2ν1
Category
overtone vibration

Evaluation

Level
fully assigned
Evaluation
undefined
# Multiplicity type Degeneracy Other band
1 no
Primary specie
NH3

Vibration modes

Label (type)
2ν1 (stretching sym.)       Bond: >N-H
Label
2ν3
Category
overtone vibration

Evaluation

Level
fully assigned
Evaluation
undefined
# Multiplicity type Degeneracy Other band
1 no
Primary specie
NH3

Vibration modes

Label (type)
2ν3 (stretching asym.)       Bond: >N-H
Texture
film

Temperature

Temperature
20.0 ± 10.0 K
Method #1
spectrum measurement
Overlap
moderately blended
Peak
6721 ± 5 cm-1 (peak)
Evaluation
validated
Quality
C
Shape
undefined
Evaluation
undefined
Method
estimated
Strength
weak (w)
Evaluation
undefined
Texture
film

Temperature

Temperature
90.0 ± 15.0 K
Method #1
spectrum measurement
Overlap
moderately blended
Peak
6721 ± 5 cm-1 (peak)
Evaluation
validated
Quality
C
Shape
undefined
Evaluation
undefined
Method
peak intensity
Absorption coefficient
18 ± 8 cm-1
Relative intensity
4.0e-04 ± 2.0e-04
Strength
weak (w)
Evaluation
undefined
Quality
E
Method
estimated
Strength
weak (w)
Evaluation
undefined
Publications