<br> Dear all,<br> I get the result of cross section of Raman and IR. The results are: <br><br># mode [cm-1] [THz] IR Raman depol<br> 1 0.00 -0.0001 0.0000 0.0000 0.7298<br>
2 0.00 0.0000 0.0000 0.0000 0.4596<br> 3 0.00 0.0000 0.0000 0.0000 0.3769<br> 4 72.48 2.1728 0.2093 0.0000 0.7221<br> 5 181.80 5.4503 0.0000 1725.7832 0.7500<br>
6 216.89 6.5023 0.0000 2083.4500 0.7500<br> 7 363.65 10.9021 0.0000 91729.5039 0.2795<br> 8 396.95 11.9001 0.0000 104976.3780 0.7500<br> 9 420.27 12.5992 0.0000 0.0000 0.6389<br>
10 425.05 12.7427 0.0000 1248.5419 0.7500<br> 11 451.38 13.5321 0.0000 329620.4654 0.3306<br> 12 460.15 13.7949 0.1942 0.0000 0.3225<br> <br> The result of raman data are very well compared with the experimental result. But I am not able to plot Raman spectrum with this o/p using XMGRACE.<br>
<br> Please give me suggetion for plot raman spectra. Here with i attached direct plot of my trail with xmgrace (2 and 5th colums) .<br><br> What is the meaning of cross section in this calculation? <br> <br> Please provide norm conserving pseudopotential for phosphorus using GGA (PBE or PW91) XC-functional ( Using LDA-CAPZ is already in website). <br>
<br> Finally, for structural properties semiemperical correction of Vdw interactions plays very importent role. But, Is there any influence of semiemperical correction to Vdw interaction on vibrational properties???? .<br>
<br> I appreciate to all your instructions. <br> <br> with regards<br> S.Appalakondaiah<br> Research Schloar<br> University of hyderabad<br> Hyderabad<br> India<br> <br><br>