Band
Title
208.5 cm-1: νLT (Bg) of (CO3)2- & Ca2+ in Vaterite
Type
Raman scattering
Assignments summary
Assignment Symmetry Mode Specie(s) Molecule/Atom Bond Multiplicity Degeneracy Contribution Resonance
νLT (Bg) Bg translation (CO3)2-
Ca2+
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)
208.5 ± 1.5 - 33 ± 7 symmetric 0.06 w 295.0 1
Label
νLT (Bg)
Symmetry
Bg
Category
phonon mode

Evaluation

Level
fully assigned
Evaluation
undefined
# Multiplicity type Degeneracy Other band
1 mode degeneracy double
Primary specie
(CO3)2-
Primary specie
Ca2+

Rotation modes

Label (type)
νL (libration)
Comments
out-of-plane libration

Phonon modes

Label (type)
νT (translation)
Comments
CO32− in-plane translation + Ca2+ translation
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
moderately blended
Peak
208.5 ± 1.5 cm-1 (various)
Evaluation
validated
Quality
B
FWHM
33 ± 7 cm-1 (various)
Shape
symmetric
Evaluation
undefined
Quality
E
Method
baseline corrected peak intensity
Relative intensity
0.06 ± 0.015
Strength
weak (w)
Evaluation
undefined
Quality
E