So what is it about periodic boundary conditions that can made an all-electron basis set fail for nmr with GAPW? The parameters discussed in the forum for GAPW do not seem specific for periodic boundary conditions. If this is a convergence issue rather than a bug, I would appreciate any guidance on what I should tune. Thank you!<div><br></div><div>Sincerely,</div><div><br></div><div>Ron</div><div><br><br></div><div class="gmail_quote"><div dir="auto" class="gmail_attr">On Tuesday, August 16, 2022 at 5:13:02 PM UTC-4 Ronald Cohen 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;">Thank you very much for the suggestion. I tried EPSFIT=1e-07 and x2c-tavpall-s.1 is still terrible or even worse:<div><br></div><div></div><div>Shielding atom at atomic positions. # tensors printed      6                    <br>     1O  O          0.000000       0.000000       0.000000<br> SIGMA from SOFT J<br></div><div>  XX = 31638.5971  XY = **********  XZ = **********<br>  YX = **********  YY = 31748.2856  YZ = **********<br>  ZX = **********  ZY = **********  ZZ = 31930.4031<br> SIGMA from LOCAL J<br>  XX =  -818.8182  XY =   385.1581  XZ =   378.9823<br>  YX =   206.3453  YY =  -816.8239  YZ =   366.3063<br>  ZX =   206.6750  ZY =   375.1724  ZZ =  -845.2912<br> SIGMA TOTAL<br>  XX = 30805.1110  XY = **********  XZ = **********<br>  YX = **********  YY = 30915.7381  YZ = **********<br>  ZX = **********  ZY = **********  ZZ = 31071.2597<br>  ISOTROPY =   30930.7029  ANISOTROPY =   16782.2884</div><div><br>     2H  H          1.221236       1.221236       1.221236<br> SIGMA from SOFT J<br></div><div>  XX =  7207.3967  XY = -2385.0046  XZ = -2381.5027<br>  YX = -2387.5623  YY =  7210.8500  YZ = -2381.6744<br>  ZX = -2393.5466  ZY = -2397.6103  ZZ =  7197.9781<br> SIGMA from LOCAL J<br>  XX =    -3.7427  XY =     0.6390  XZ =     0.5561<br>  YX =     0.0340  YY =    -3.0295  YZ =     1.9120<br>  ZX =    -0.7421  ZY =     1.0471  ZZ =    -3.8553<br> SIGMA TOTAL<br>  XX =  7188.9861  XY = -2406.0057  XZ = -2403.0887<br>  YX = -2410.4407  YY =  7192.0970  YZ = -2402.2695<br>  ZX = -2417.4847  ZY = -2419.7320  ZZ =  7180.2706<br>  ISOTROPY =    7187.1179  ANISOTROPY =    3618.1086<br><br></div><div>with EPSFIT=1e-7 the soft basis shows:</div><div><br></div><div>                  Set   Shell   Orbital            Exponent    Coefficient<br><br>                          1       1    1s                5.119805       0.000000<br>                                                         1.176403       0.000000<br>                                                         0.465461       0.000000<br>                                                         0.185009       0.000000<br></div><div><br></div><div>but it does not seem to have helped.</div><div><br></div><div>Sincerely,</div><div>Ron</div><div><br></div><div class="gmail_quote"><div dir="auto" class="gmail_attr">On Friday, August 12, 2022 at 4:04:19 AM UTC-4 Matthias Krack 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">





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<p class="MsoNormal"><span lang="DE-CH">Hi Ron<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="DE-CH"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">The exponent 5.11 of the O x2c-TZVPall-2c basis set is not included in the GAPW soft basis set. I suggest to reduce
<a href="https://manual.cp2k.org/cp2k-2022_1-branch/CP2K_INPUT/FORCE_EVAL/DFT/QS.html#EPSFIT" rel="nofollow" target="_blank" data-saferedirecturl="https://www.google.com/url?hl=en&q=https://manual.cp2k.org/cp2k-2022_1-branch/CP2K_INPUT/FORCE_EVAL/DFT/QS.html%23EPSFIT&source=gmail&ust=1660837376667000&usg=AOvVaw3Cz1vmfKF5McfqMoYvQVu9">
EPSFIT</a> to 1.0E-6 (or less) to achieve that. This is just one possible issue and I do not claim that it will solve all your problems.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">HTH<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Matthias
<u></u><u></u></span></p></div></div><div lang="en-CH" link="blue" vlink="purple" style="word-wrap:break-word"><div>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">"<a rel="nofollow">cp...@googlegroups.com</a>" <<a rel="nofollow">cp...@googlegroups.com</a>> on behalf of Ronald Cohen <<a rel="nofollow">reco...@gmail.com</a>><br>
<b>Reply to: </b>"<a rel="nofollow">cp...@googlegroups.com</a>" <<a rel="nofollow">cp...@googlegroups.com</a>><br>
<b>Date: </b>Thursday, 11 August 2022 at 21:35<br>
<b>To: </b>"<a rel="nofollow">cp...@googlegroups.com</a>" <<a rel="nofollow">cp...@googlegroups.com</a>><br>
<b>Subject: </b>[CP2K:17466] Re: Basis sets for NMR<u></u><u></u></span></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><u></u> <u></u></p>
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<p class="MsoNormal" style="margin-left:36.0pt">Here is the example for iceX with x2c-tavpall-s.
<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><u></u> <u></u></p>
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<p class="MsoNormal" style="margin-left:36.0pt">Sincerely,<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><u></u> <u></u></p>
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<p class="MsoNormal" style="margin-left:36.0pt">Ron<u></u><u></u></p>
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<u></u> <u></u></p>
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<p class="MsoNormal" style="margin-left:36.0pt">On Thursday, August 11, 2022 at 3:27:43 PM UTC-4 Ronald Cohen wrote:<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:36.0pt">I am reposting this with a proper subject from conversation"REFTRAJ for LINRES".
<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:36.0pt">When I use the EMSL 6-31G** basis sets I get reasonable nmr shifts, but with basis sets that are supposed to be optimal for nmr from
<a href="http://basissetexchange.org" rel="nofollow" target="_blank" data-saferedirecturl="https://www.google.com/url?hl=en&q=http://basissetexchange.org&source=gmail&ust=1660837376668000&usg=AOvVaw3J4p_45gbY2fsurHIeVlRS">basissetexchange.org</a> like pcSseg and x2c-tavpall-s.1 I get crazy huge NMR shifts (printed as ****). It is not a cut off issue because results change little doubling the cutoff from 100 to 200 Ryd.<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><u></u> <u></u></p>
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<p class="MsoNormal" style="margin-left:36.0pt">Is there an issue with what basis sets are supported, or is there a problem with the cp2k formats from
<a href="http://www.basissetexchange.org" rel="nofollow" target="_blank" data-saferedirecturl="https://www.google.com/url?hl=en&q=http://www.basissetexchange.org&source=gmail&ust=1660837376668000&usg=AOvVaw3Lq8dBovSx6fhFCc6PvatK">www.basissetexchange.org</a>?
<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><br>
There are no error messages.<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><u></u> <u></u></p>
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<p class="MsoNormal" style="margin-left:36.0pt">Thanks for any help.<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><u></u> <u></u></p>
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<p class="MsoNormal" style="margin-left:36.0pt">Sincerely,<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><u></u> <u></u></p>
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<p class="MsoNormal" style="margin-left:36.0pt">Ron<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><u></u> <u></u></p>
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</div></div><div lang="en-CH" link="blue" vlink="purple" style="word-wrap:break-word"><div><p class="MsoNormal" style="margin-left:36.0pt">-- <br>
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