See fawzi's post on Oct 20, 2010, 1:38:58 PM: Problems of IR and dipole calculation<div><br></div><div>He recommends looking at the Wannier Center movement and consider centering.<br><br></div><div class="gmail_quote"><div dir="auto" class="gmail_attr">On Wednesday, February 23, 2022 at 2:14:52 PM UTC+1 Sam Broderick wrote:<br/></div><blockquote class="gmail_quote" style="margin: 0 0 0 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Dear IR-Colleague<div><br></div><div>6'000 or 60'000? If it is 6'000, that would be the reason.</div><div><br></div><div>Otherwise, what were your TRAVIS inputs?</div><div><br></div><div>Rgds</div><div>Sam<br><br></div><div class="gmail_quote"><div dir="auto" class="gmail_attr">On Wednesday, June 30, 2021 at 1:31:29 PM UTC+2 <a href data-email-masked rel="nofollow">zsh1...@gmail.com</a> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><p>Hello everyone,</p>
<p> I am trying to do vibrational analysis for gas phase system. I am
following the tutorial "Calculating Vibrational Spectra from Molecular
Dynamics". Initially i have done massive equilibration of a single methanol
system for 6000 steps. After that i use the following example CP2k input file
to simulating a trajectory with wannier centers for 60000 steps. Then, I calculated
the IR spectra with <a href="http://methanol_wannier.xyz" rel="nofollow" target="_blank" data-saferedirecturl="https://www.google.com/url?hl=en&q=http://methanol_wannier.xyz&source=gmail&ust=1645712617969000&usg=AFQjCNFH7TXLAusI9HY4cBjSFS8bWdg1rA">methanol_wannier.xyz</a> file using Travis software.
Unfortunately, I don’t get a good IR spectrum because of it doesn’t show peaks
at 200, 1000, 1500 and 3700 cm-1 and it has very noise. Would you please guide me why I don’t get
a good IR spectrum?</p>
<p><br></p><p>Here i am
attaching my IR spectrum and
the input files of massive equilibration and the wannier center for a single methanol.</p>
<p>Please help me
on this.</p><p>Thanks.</p><p><img alt="IR.png" width="534px" height="322px" src="https://groups.google.com/group/cp2k/attach/9563cce89867/IR.png?part=0.1&view=1"><br></p></blockquote></div></blockquote></div>
<p></p>
-- <br />
You received this message because you are subscribed to the Google Groups "cp2k" group.<br />
To unsubscribe from this group and stop receiving emails from it, send an email to <a href="mailto:cp2k+unsubscribe@googlegroups.com">cp2k+unsubscribe@googlegroups.com</a>.<br />
To view this discussion on the web visit <a href="https://groups.google.com/d/msgid/cp2k/65704ff7-7bd2-4854-886c-074a23c4f9a0n%40googlegroups.com?utm_medium=email&utm_source=footer">https://groups.google.com/d/msgid/cp2k/65704ff7-7bd2-4854-886c-074a23c4f9a0n%40googlegroups.com</a>.<br />