<div dir="ltr"><div class="gmail_quote"><div dir="ltr"><p class="MsoNormal" style="text-align:justify">Dear all,</p><p class="MsoNormal" style="text-align:justify"><br></p>
<p class="MsoNormal" style="text-align:justify">Greetings.</p><p class="MsoNormal" style="text-align:justify"><br></p>
<p class="MsoNormal" style="text-align:justify">I want to perform a local
correlated ccsd(t) computation using the density-fitting approximation for a
system containing C, N, H and K atoms.</p><p class="MsoNormal" style="text-align:justify"><br></p>
<p class="MsoNormal" style="text-align:justify">First of all, I tried some test
calculations on K at HF level before performing the DF-LCCSD(T) computation on my
complex system.</p><p class="MsoNormal" style="text-align:justify"><br></p>
<p class="MsoNormal" style="text-align:justify"><u>Using an all-electron basis
set for K:</u></p>
<p style="text-indent:0px;text-align:justify"><span style="font-family:Wingdings">Ø</span><span> My first choice was a core correlated CVDZ basis
set for K. The ‘Default basis set’ (chapter 11.4 – Molpro manual version 2012)
shows that CVDZ is available for K; however this basis set for K is not present in the Molpro basis set library.</span></p>
<p style="margin-bottom:0.0001pt;text-align:justify">Indeed, test computation with
CVDZ basis set (an example below),</p>
<p style="margin-bottom:0.0001pt"> </p>
<font color="#0000ff" style="background-color:rgb(255,255,255)">***,Test K Feller CVDZ<br>memory,40,m<br><br>geom={K}<br><br>set,orbital <br><br>basis<br>K=cvdz <br>end <br><br>HF</font>
<p style="margin-bottom:0.0001pt">ends up with following error:</p><p style="margin-bottom:0.0001pt"></p>
<p style="margin-bottom:0.0001pt"> </p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:'Courier New';color:red">LIBRARY EXHAUSTED</span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:'Courier New';color:red"> Searching for
K S CVDZ </span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:'Courier New';color:red"> Library
contains the following bases:</span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:'Courier New';color:red"> ? Error</span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:'Courier New';color:red"> ? Basis library
exhausted</span></p>
<p style="margin-bottom:0.0001pt"><span style="font-family:'Courier New';color:red"> ? The problem occurs in Binput</span></p>
<p style="margin-bottom:0.0001pt"> </p>
<p style="margin:0in 0in 0.0001pt 0.75in;text-align:justify"><span style="font-family:Wingdings">Ø<span style="font-stretch:normal;font-size:7pt;font-family:'Times New Roman'">
</span></span>It is to be noted that CVDZ were successfully
used in literature for system containing K. </p>
<p style="margin-bottom:0.0001pt;text-align:justify"> Please see <a href="http://pubs.acs.org/doi/abs/10.1021/jp002631l" target="_blank">J. Phys. Chem. A 2000,
104, 11414-11419</a> as an example.</p>
<p style="margin-bottom:0.0001pt;text-align:justify"> </p>
<p style="margin:0in 0in 0.0001pt 0.75in;text-align:justify"><span style="font-family:Wingdings">Ø<span style="font-stretch:normal;font-size:7pt;font-family:'Times New Roman'">
</span></span>Please also note that I tried some test
computations on K, using all-electron basis sets such as Pople’s basis set
(available in EMSL basis set library), Ahlrichs-vdz and sto-3g (available in the Molpro basis
set library). However, similar to the case of CVDZ, the computations indicate
that Pople's basis sets are not available in the library. <span>Ahlrichs-vdz basis set works
perfectly well.</span></p><p style="margin:0in 0in 0.0001pt 0.75in;text-align:justify"></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"> </p>
<p style="margin:0in 0in 0.0001pt 0.75in"><span style="font-family:Wingdings">Ø<span style="font-stretch:normal;font-size:7pt;font-family:'Times New Roman'"> </span></span>Can
you please advise how can I implement CVDZ basis set in the computation? <br>
Is the weighted core WCVDZ basis set available for K?<br>Are there any other appropriate
all-electron basis sets (e.g. Pople’s basis set) which can possibly be used for
K containing systems? </p><p style="margin:0in 0in 0.0001pt 0.75in"><br></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"> It would be grateful if you can help me.</p><p class="MsoNormal" style="margin-bottom:0.0001pt"><br></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt">Thank you.</p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"> </p>
<p class="MsoNormal" style="margin-bottom:0.0001pt">Kind regards,</p>
<p class="MsoNormal" style="margin-bottom:0.0001pt">Hanusha</p><div><div><div dir="ltr"><div><br></div></div></div></div>
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