Band
Title
728.5 cm-1: ν4 (Eg) of (CO3)2- in Siderite
Type
Raman scattering
Assignments summary
Assignment Symmetry Mode Specie(s) Molecule/Atom Bond Multiplicity Degeneracy Contribution Resonance
ν4 (Eg) Eg 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)
728.5 ± 2.5 - 24 ± 4 asymmetric 0.016 vw 0.065 m 295.0 1
Label
ν4 (Eg)
Symmetry
Eg
Category
fundamental vibration

Evaluation

Level
fully 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
single crystals and powders

Temperature

Temperature
295.0 ± 5.0 K

Pressure

Pressure
1 bar
Laser wavelength
532.0 nm
Sample orientation mode
unoriented
Method #1
various
Overlap
isolated
Peak
728.5 ± 2.5 cm-1 (various)
Evaluation
validated
Quality
B
FWHM
24 ± 4 cm-1 (fwhm)
Shape
asymmetric
Evaluation
undefined
Quality
D
Method
peak intensity
Relative intensity
0.016 ± 0.006
Strength
very weak (vw)
Evaluation
undefined
Quality
E
Method
width x peak intensity
Relative intensity
0.065 ± 0.015
Strength
medium (m)
Evaluation
undefined
Quality
D