Band
Title
282.0 cm-1: νL (Eg) of (CO3)2- in Calcite
Type
Raman scattering
Assignments summary
Assignment Symmetry Mode Specie(s) Molecule/Atom Bond Multiplicity Degeneracy Contribution Resonance
νL (Eg) Eg libration (CO3)2- mode degeneracy double
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)
282 ± 1.5 - 9.5 ± 1 symmetric 0.17 m 0.65 vs 295.0 1
287.2 ± 0.5 - 3.5 ± 0.4 symmetric 0.2 m 0.5 s 80.0
Label
νL (Eg)
Symmetry
Eg
Category
rotation

Evaluation

Level
fully assigned
Evaluation
validated
# Multiplicity type Degeneracy Other band
1 mode degeneracy double

Rotation modes

Label (type)
νL (libration)
Comments
C-O rotating torsion
Texture
single crystals and powders

Temperature

Temperature
295.0 ± 5.0 K

Pressure

Pressure
1 bar
Laser wavelength
514.5 nm
Sample orientation mode
unoriented
Method #1
various
Overlap
isolated
Peak
282 ± 1.5 cm-1 (various)
Evaluation
validated
Quality
B
FWHM
9.5 ± 1 cm-1 (various)
Shape
symmetric
Evaluation
validated
Quality
C
Method
various
Relative intensity
0.17 ± 0.09
Strength
medium (m)
Evaluation
undefined
Quality
E
Method
various
Relative intensity
0.65 ± 0.2
Strength
very strong (vs)
Evaluation
validated
Quality
E
Texture
single crystals and powders

Temperature

Temperature
80.0 ± 5.0 K
Laser wavelength
514.5 nm
Sample orientation mode
unoriented
Method #1
unknown
Overlap
isolated
Peak
287.2 ± 0.5 cm-1 (unknown)
Evaluation
validated
Quality
A
FWHM
3.5 ± 0.4 cm-1 (unknown)
Shape
symmetric
Evaluation
validated
Quality
B
Method
other
Relative intensity
0.2 ± 0.06
Strength
medium (m)
Evaluation
validated
Quality
E
Comments
from integrated intensity
Method
fit integrated intensity
Relative intensity
0.5 ± 0.15
Strength
strong (s)
Evaluation
validated
Quality
E