<div dir="ltr">Hello!<div><br></div><div>I would like to extract the IR and Raman spectra of functionalized carbon nanotues. </div><div>I have successfully computed the optimized geometry using degauss and smearing. After that I have taken the optimized geometry to compute the one scf of the structure without the smearing or the degauss. My problem is as follows:</div><div><br></div><div>1> For structure "1" the scf calculation was not complete as the convergence (which was lowered) value was not achieved. The degauss and smearing was removed as I read in the forum from a previous post that in order to calculate the frequencies using phonon calculations it will not be possible to do with these parameters included. </div><div><br></div><div>2> In another structure "2" convergence was achieved but the phonon calculations did not take start without giving in error comment. </div><div><br></div><div>I do not understand the problem. <br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><br><font face="arial black, sans-serif"><br></font></div><div><font size="2" face="trebuchet ms, sans-serif"><b>Thank you</b></font></div><div><font size="2" face="trebuchet ms, sans-serif"><b><br></b></font></div><div><font size="2" face="trebuchet ms, sans-serif"><b>Gangotri Dey</b></font></div><i><font size="2"><div dir="ltr"><i><font face="georgia, serif" size="2"><br></font></i></div><br></font></i><br></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
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