Band
Title
3535.0 cm-1: ν1+nuLxy 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
ν1+nuLxy combination 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)
3534 ± 2 - - unknown s 20.0
3535 ± 4 - 50 ± 6 asymmetric low frequency wing 225 ± 25 0.0047 s w 90.0
Band assignment #1
Assignment
Label
ν1+nuLxy
Category
combination

Evaluation

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

Vibration modes

Label (type)
ν1 (stretching sym.)       Bond: >N-H

Rotation modes

Label (type)
νLxy (libration)
Texture
film

Temperature

Temperature
20.0 ± 10.0 K
Method #1
spectrum measurement
Overlap
strongly blended
Peak
3534 ± 2 cm-1 (peak)
Evaluation
validated
Quality
B
Shape
unknown
Evaluation
undefined
Method
estimated
Strength
strong (s)
Evaluation
undefined
Texture
film

Temperature

Temperature
90.0 ± 15.0 K
Method #1
spectrum measurement
Overlap
strongly blended
Peak
3535 ± 4 cm-1 (peak)
Evaluation
validated
Quality
C
FWHM
50 ± 6 cm-1 (hwhm)
Shape
asymmetric low frequency wing
Evaluation
undefined
Quality
E
Comments
with a broad shoulder around 3515 cm-1
Method
baseline corrected peak intensity
Absorption coefficient
225 ± 25 cm-1
Relative intensity
0.0047 ± 5.0e-04
Strength
strong (s)
Evaluation
undefined
Quality
D
Method
estimated
Strength
weak (w)
Evaluation
undefined
Publications
Comments
nu1/nu3+nuL