Band
Title
1739.0 cm-1: 2ν2 of (CO3)2- in K2Ca(CO3)2 - phase beta
Type
Raman scattering
Assignments summary
Assignment Symmetry Mode Specie(s) Molecule/Atom Bond Multiplicity Degeneracy Contribution Resonance
2 unknown bending sym. out-p (wagging) (CO3)2- (CO3)2- 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)
1739 ± 1 - 18 ± 3 asymmetric 0.0083 vw 295.0 1
Label
2
Symmetry
unknown
Category
overtone vibration

Evaluation

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

Vibration modes

Label (type)
2 (bending sym. out-p (wagging))       Bond: (CO3)2-
Comments
O-C-O out-of-plane deformation
Composition
pure beta-K2Ca(CO3)2, formed at 3GPa/975°C
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 fit
Fit function
Voigt
Overlap
moderately blended
Peak
1739 ± 1 cm-1 (peak)
Evaluation
validated
Quality
B
FWHM
18 ± 3 cm-1 (hwhm)
Shape
asymmetric
Evaluation
validated
Quality
D
Method
estimated
Relative intensity
0.0083 ± 0.003
Strength
very weak (vw)
Evaluation
undefined
Quality
E