Band
Title
686.0 cm-1: ν4 of (CO3)2- in magnesian Nyerereite
Type
Raman scattering
Assignments summary
Assignment Symmetry Mode Specie(s) Molecule/Atom Bond Multiplicity Degeneracy Contribution Resonance
ν4 unknown bending sym. in-p (scissoring) (CO3)2- (CO3)2- mode degeneracy double full
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)
686 ± 3 - 10 ± 2 asymmetric 0.012 vw 295.0 1
Label
ν4
Symmetry
unknown
Category
fundamental vibration

Evaluation

Level
partly assigned
Evaluation
validated
# Multiplicity type Degeneracy Other band
1 mode degeneracy double
Contribution level
full

Vibration modes

Label (type)
ν4 (bending sym. in-p (scissoring))       Bond: (CO3)2-
Comments
O-C-O in-plane deformation
Texture
crystal

Temperature

Temperature
295.0 ± 5.0 K

Pressure

Pressure
1 bar
Laser wavelength
532.0 nm
Sample orientation mode
unoriented
Method #1
spectrum measurement
Overlap
slightly blended
Peak
686 ± 3 cm-1 (peak)
Evaluation
validated
Quality
C
FWHM
10 ± 2 cm-1 (fit fwhm)
Shape
asymmetric
Evaluation
validated
Quality
D
Method
peak intensity
Relative intensity
0.012 ± 0.008
Strength
very weak (vw)
Evaluation
undefined
Quality
E