Band
Title
721.0 cm-1: ν4 of (CO3)2- in Na2Ca(CO3)2 - phase alpha
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)
721 ± 1 - 6 ± 1 symmetric 0.008 w 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
514.0 nm
Sample orientation mode
unoriented
Method #1
spectrum measurement
Overlap
moderately blended
Peak
721 ± 1 cm-1 (peak)
Evaluation
validated
Quality
B
FWHM
6 ± 1 cm-1 (fwhm)
Shape
symmetric
Evaluation
undefined
Quality
C
Method
peak intensity
Relative intensity
0.008 ± 0.006
Strength
weak (w)
Evaluation
undefined
Quality
E