<div style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial"><div style="color: rgb(0, 0, 0); line-height: 1.7; font-family: Arial; font-size: 14px;"><div>Dear MolPro users</div><div><br></div><div>I encountered a problem in the CCSD(T)/<span style="color: rgb(255, 0, 0);">aug-</span>cc-pVTZ optimization [but CCSD(T)/cc-pVTZ optimization can be achieved].</div><div>In one of the CCSD step, the "VAR (P)" can not be lowered below 1.0D-12 even I increase the maximum number of CCSD iterations to 300.</div><div>----------------------------------------------------------------------------------------------------------------------------------------------------------------------------</div><div> <span style="font-size: 13px;">ITER. SQ.NORM CORR.ENERGY TOTAL ENERGY ENERGY CHANGE DEN1 VAR(S) VAR(P) DIIS TIME</span><br> 1 1.25279637 -0.50350353 -116.32933471 -0.03743526 -0.02192105 0.19D-02 0.50D-02 1 1 8.30</div><div> . . . . . . . . . . .</div><div> . . . . . . . . . . .</div><div> . . . . . . . . . . .<br></div><div> 97 1.28543234 -0.50769672 -116.33352790 -0.00000000 0.00000000 0.11D-14 0.17D-10 6 2 336.65<br> 98 1.28543234 -0.50769672 -116.33352790 -0.00000000 -0.00000000 0.94D-15 0.18D-10 6 6 340.07<br> 99 1.28543234 -0.50769672 -116.33352790 0.00000000 0.00000000 0.94D-15 0.18D-10 6 2 343.52<br></div><div><br></div><div> Norm of t1 vector: 0.07197772 S-energy: 0.00000000 T1 diagnostic: 0.01138068<br> D1 diagnostic: 0.03667313<br><br> ?CONVERGENCE NOT REACHED AFTER MAX. ITERATIONS</div><div>------------------------------------------------------------------------------------------------------------------------------------------------------------<br></div><div>I think the possible way to solve this problem is to promote the convergence of the "VAR (P)" item using certain keyword(s) or to reduce the criterion a little bit (for example to 1.0D-11), but I can not find the related keyword(s) in the manual. Maybe I did not catch what the manual says.</div><div><br></div><div>Can anyone tell me how to sovle this problem?</div><div><br></div><div>Thank you in advance!</div><div><br></div><div>Best,</div><div><br></div><div>Yan-Bo Wu</div><div>---------------------------------------</div><div>Institute of Molecular Science</div><div>Shanxi University</div><div>Taiyuan, 030006, Shanxi Province, China.</div></div><br><br><span title="neteasefooter"><span id="netease_mail_footer"><div id="netease_mail_footer"><div style="padding: 10px 5px; color: rgb(119, 119, 119); line-height: 22px; font-size: 12px; border-top-color: rgb(204, 204, 204); border-top-width: 1px; border-top-style: solid;"><a style="color: rgb(51, 102, 255); text-decoration: none;" href="http://r.mail.163.com/r.jsp?url=http%3A%2F%2F1.163.com%2Fsearch.do%3Fkeyword%3D%25E6%25AF%258D%25E5%25A9%25B4%26from%3Dfooter_baby1&sign=2120126086&_r_ignore_statId=7_13_79_46&_r_ignore_uid=nt@163.com" target="_blank" logid="footer_beauty_20150816" log="1">宝宝的进口奶粉纸尿裤,1元全包了</a></div></div>
</span></span></div><br><br><span title="neteasefooter"><span id="netease_mail_footer"><div id="netease_mail_footer"><div style="border-top:#CCC 1px solid;padding:10px 5px;font-size:12px;color:#777;line-height:22px"><a log=1 logid="footer_beauty_20150816" href="http://r.mail.163.com/r.jsp?url=http%3A%2F%2F1.163.com%2Fsearch.do%3Fkeyword%3D%25E6%25AF%258D%25E5%25A9%25B4%26from%3Dfooter_baby1&sign=2120126086&_r_ignore_statId=7_13_79_46&_r_ignore_uid=nt@163.com" target="_blank" style="color:#3366FF;text-decoration:none">宝宝的进口奶粉纸尿裤,1元全包了</a></div></div>
</span></span>