<div dir="ltr"><div>Sorry, I assume you were talking about periodic solids. For non-periodic molecules, you can still calculate the intensities (oscillator strengths), but you will need to calculate the dipoles first, by adding the &MOMENTS section in &DFT / &PRINT subsection. Then you will also need to set the INTENSITIES keyword in &VIBRATIONAL_ANALYSIS section to .TRUE. (the default is .FALSE.). Once you have the vibrational frequencies and intensities, you can do a Gaussian broadening to obtain the IR spectra.</div><div><br></div><div>SL</div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On 24 June 2015 at 06:34, farid taherkhani <span dir="ltr"><<a href="mailto:faridta...@gmail.com" target="_blank">faridta...@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Dear S Ling,<div><br></div><div>Thanks so much for your consideration , comment and your help. I really appreciate your time.</div><div><br></div><div>All the best,</div><div><br></div><div>Farid</div><div><div class="h5"><div><br><br>On Tuesday, June 23, 2015 at 11:09:11 AM UTC-7, farid taherkhani wrote:<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid"><div dir="ltr"><span style="color:rgb(68,68,68);line-height:21px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px">Dear All,</span><div><span style="color:rgb(68,68,68);line-height:21px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px"><br></span></div><div><span style="color:rgb(68,68,68);line-height:21px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px"> I have one vibrational frequency "mol" file which is calculated with Cp2k package. I have been used Molden program for opening IR frequency in mol format. I am able to animate all modes and see all frequencies however I am not able to draw IR spectrum density. How can I draw the IR spectrum density with mol format file? I have tried with Jmol program as well. Similar story problem can be found for IR spectrum density. Is there any software or codes to visualize the IR spectrum? I will appreciate if I get your help me to visualize IR spectrum density for mol format file.</span><br></div><div><span style="color:rgb(68,68,68);line-height:21px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px"><br></span></div><div><span style="color:rgb(68,68,68);line-height:21px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px">All the best,</span></div><div><span style="color:rgb(68,68,68);line-height:21px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px"><br></span></div><div><span style="color:rgb(68,68,68);line-height:21px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px">Farid</span></div></div></blockquote></div></div></div></div><div class="HOEnZb"><div class="h5">
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