Band
Title
1760.0 cm-1: ν14 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
ν14 unknown combination vibration (CO3)2- 12C18O-2/3
(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)
1760 ± 2 - 18 ± 3 symmetric 0.0063 vw 295.0 1
Label
ν14
Symmetry
unknown
Category
combination vibration

Evaluation

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

Vibration modes

Label (type)
ν1 (stretching sym.)       Bond: 12C18O-2/3
ν4 (bending sym. in-p (scissoring))       Bond: (CO3)2-
Comments
12C-18O symmetric stretch
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
strongly blended
Peak
1760 ± 2 cm-1 (peak)
Evaluation
validated
Quality
B
FWHM
18 ± 3 cm-1 (hwhm)
Shape
symmetric
Evaluation
validated
Quality
D
Method
estimated
Relative intensity
0.0063 ± 0.002
Strength
very weak (vw)
Evaluation
undefined
Quality
E