 CARBON DIOXIDE  330b   Raman shift

							                                                                                                                             CARBON DIOXIDE                                    330b
                                                                                                                                                                      
Raman shift   Assignment     Raman shift    Assignment                             SAMPLE                                          CHEMICAL ANALYSIS
 (cm-1)                       (cm-1)                      Origin : natural [ ]    locality :                            -          :                    End members proportions :
-   1408.0                   -                                     synthetic [x]  method :          P:      T:          -          :                    -
-   1386.5                   -                            Solid : crystal [ ]     powder          [ ] glass       []    -          :                    -
-   1368.0                   -                            Fluid : liquid     []   gas             [x]                   -          :                    -
-   1284.0                   -                            Thick section      []   thin section [ ] raw sample [ ]       -          :                    -
-   1263.5                   -                            Colour : colourless     opaque          [ ] transparent [x]   -          :                    -
-                            -                                                    translucent     []                    -          :                    -
-                            -                            Conditions of measurement : room P          room T            -          :                    -
-                            -                            Polarization setting: PORTO ( )                               -          :                    -
-                            -                                                  VV [ ] ; VH [ ] ; none [x]              -          :                    -
-                            -                                                                                          -          :                    -
-                            -                                          OPERATING CONDITIONS                            -          :                    -
-                            -                            Laser : Ar + λ = 514.5 nm ; sample photosensibility : /       -          :                    Analytical technique :
                                                                          0
-                            -                            Laser power : at laser : 500 mW, at sample :                  -          :
-                            -                            Raman scattering efficiency : **                              -          :
-                            -                            Spectral resolution :     5 cm-1
-                            -                            Calibration: Ar+ : cm-1                                       Sum        :
-                            -
-                            -                                                                                          Author(s) : BENY C.
-                            -                            Spectrometer manufacturer : JOBIN-YVON; model: U1000
-                            -                            macro [x] micro [ ] objective :          ; N.A. :             Date : 11 september 90      file name : HCOCOB.S00
-                            -                            monochannel [x]                 multichannel [ ]              Recording laboratory : Lab. mixte (BRGM-CNRS-
-                            -                            scan rate :  cm-1/mn                                          Univ. Orléans) de spectrométrie Raman
-                            -                            step :    0.5 cm-1                                            References :
-                            -                            counting time :    2s           integration time : s
-                            -                            number of scans : 1             accumulations :               2nd file name :

Observations : CO2 comes from the decomposition of                      CRISTALLOGRAPHIC DATA                           Structural formula :
H2C2O4 in presence of Mg 1h at 280°C ; at this            Reference :                                                                            CO2
date there was a shift of 2 cm-1 between the wavenumber
of the spectra obtained with 488nm and the 514.5nm        Crystal system :            ;Z:      ;space group :           Name :         Carbon dioxide                      
exciting lines.                                           Factor group analysis :                                       Family :                                                330b
                                                             Γ:                                                         Group :                                            