<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div dir="ltr" id="yui_3_16_0_ym19_1_1510601672014_146042"><span id="yui_3_16_0_ym19_1_1510601672014_146162">Dear Prof. Dr. Werner,</span></div><div id="yui_3_16_0_ym19_1_1510601672014_146071" dir="ltr"><br><span></span></div><div id="yui_3_16_0_ym19_1_1510601672014_146045" dir="ltr"><span id="yui_3_16_0_ym19_1_1510601672014_146070">Please let me know which of the two sets of coordinates is correct. <br></span></div><div id="yui_3_16_0_ym19_1_1510601672014_146634" dir="ltr"><span id="yui_3_16_0_ym19_1_1510601672014_146070"><br></span></div><div id="yui_3_16_0_ym19_1_1510601672014_146633" dir="ltr"><span id="yui_3_16_0_ym19_1_1510601672014_146070">As I informed you, we want to calculate the interaction potential between the molecule of interest (H2CS) and the colliding partner (He atom). When the positions of the atoms of H2CS are different, the interaction potential would undoubtedly would differ.   So, how to decide about  the result for interaction potential. <br></span></div><div id="yui_3_16_0_ym19_1_1510601672014_146490" dir="ltr"><br><span id="yui_3_16_0_ym19_1_1510601672014_146070"></span></div><div id="yui_3_16_0_ym19_1_1510601672014_146472" dir="ltr"><span id="yui_3_16_0_ym19_1_1510601672014_146070">In the two sets of coordinates, sent to you, not only the bond lengths are changing, but their angles are changing. As said above, the interaction potential would depend much on the  coordinates of atoms. </span></div><div id="yui_3_16_0_ym19_1_1510601672014_146041"> </div><div id="yui_3_16_0_ym19_1_1510601672014_146000" class="signature"><div id="yui_3_16_0_ym19_1_1510601672014_145999"><div id="yui_3_16_0_ym19_1_1510601672014_146040"><font id="yui_3_16_0_ym19_1_1510601672014_146039" color="#000000" face="comic sans ms" size="3"><br><span id="yui_3_16_0_ym19_1_1510601672014_146038" style="font-weight:bold;">With regards,</span></font></div><div id="yui_3_16_0_ym19_1_1510601672014_145998"><span style="font-weight:bold;"> </span></div><div id="yui_3_16_0_ym19_1_1510601672014_146635"><font style="font-weight:bold;" face="comic sans ms" size="3">Prof. Suresh Chandra,<br><br>Deputy Director & Professor,<br>Amity Centre for Astronomy & Astrophysics,<br>Amity Institute of Applied Sciences,<br>Amity University, Sector-125, <br>NOIDA 201313, U.P., India<br><br>Email: schandra2@amity.edu;<br>       suresh492000@yhoo.co.in<br><br>Mob. +91-9818005663, 8368908608<br></font></div>=========================================</div><span style="background-color:rgb(255, 255, 255);font-weight:bold;">Alexander von Humboldt Fellow (Germany),<br>Former Director, School of Physical Sciences,<br>S.R.T.M. University, Nanded (Maharashtra)</span></div> <div class="qtdSeparateBR"><br><br></div><div style="display: block;" class="yahoo_quoted"> <div style="font-family: Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, Sans-Serif; font-size: 16px;"> <div dir="ltr"><font face="Arial" size="2"> On Monday, 13 November 2017 2:34 AM, Hans-Joachim Werner <werner@theochem.uni-stuttgart.de> wrote:<br></font></div>  <br><br> <div class="y_msg_container"><div dir="ltr">The internal coordinates and also the harmonic frequencies are the same (within the optimization accuracy). <br clear="none">Only in one case the molecule is shifted along the z-axis, which of course has no effect on the results. <br clear="none">Best regards<br clear="none">Joachim Werner<br clear="none">---<br clear="none">Prof. Dr. Hans-Joachim Werner<br clear="none">Institut für Theoretische Chemie<br clear="none">Universität Stuttgart<br clear="none">Pfaffenwaldring 55<br clear="none">70569 Stuttgart, Germany<br clear="none">e-mail: <a shape="rect" ymailto="mailto:werner@theochem.uni-stuttgart.de" href="mailto:werner@theochem.uni-stuttgart.de">werner@theochem.uni-stuttgart.de</a><br clear="none"><br clear="none"><br clear="none"><br clear="none"><div class="yqt0341642337" id="yqtfd28918"><br clear="none">> Am 10.11.2017 um 07:50 schrieb Prof. Suresh Chandra <<a shape="rect" ymailto="mailto:suresh492000@yahoo.co.in" href="mailto:suresh492000@yahoo.co.in">suresh492000@yahoo.co.in</a>>:<br clear="none">> <br clear="none">> Dear Friends,<br clear="none">> <br clear="none">> We have optimized H2CS on 21 September 2017 and on 1 April 2014 with the help of<br clear="none">> MOLPRO using the same basis-set and the same method, but we got two different results,  <br clear="none">> attached herewith (where lines are deleted in the text; one can ask for complete output). For example, <br clear="none">> in the output file h2cs_opt-fixed.out, the optimized coordinates are:<br clear="none">> <br clear="none">> Atomic Coordinates<br clear="none">> <br clear="none">>   Nr  Atom  Charge       X              Y              Z<br clear="none">> <br clear="none">>    1   H1    1.00    0.000000000    1.765967499   -2.745177896<br clear="none">>    2   H2    1.00    0.000000000   -1.765967499   -2.745177896<br clear="none">>    3   C      6.00    0.000000000    0.000000000   -1.634732411<br clear="none">>    4   S    16.00    0.000000000    0.000000000    1.455909829<br clear="none">> <br clear="none">> On the other side, the optimized coordinates in the output file H2CS_opt2.out are:<br clear="none">> <br clear="none">> Atomic Coordinates<br clear="none">> <br clear="none">>   Nr  Atom  Charge       X              Y              Z<br clear="none">> <br clear="none">>    1   H1    1.00    0.000000000    1.765973450   -3.050725593<br clear="none">>    2   H2    1.00    0.000000000   -1.765973450   -3.050725593<br clear="none">>    3   C      6.00    0.000000000    0.000000000   -1.940275913<br clear="none">>    4   S    16.00    0.000000000    0.000000000    1.150376265<br clear="none">> <br clear="none">> There is large difference. Could you please suggest me some reason for the<br clear="none">> difference between the two outputs.<br clear="none">> <br clear="none">>  With regards,<br clear="none">>  <br clear="none">> Prof. Suresh Chandra,<br clear="none">> <br clear="none">> Deputy Director & Professor,<br clear="none">> Amity Centre for Astronomy & Astrophysics,<br clear="none">> Amity Institute of Applied Sciences,<br clear="none">> Amity University, Sector-125, <br clear="none">> NOIDA 201313, U.P., India<br clear="none">> <br clear="none">> Email: <a shape="rect" ymailto="mailto:schandra2@amity.edu" href="mailto:schandra2@amity.edu">schandra2@amity.edu</a>;<br clear="none">>        <a shape="rect" ymailto="mailto:suresh492000@yhoo.co.in" href="mailto:suresh492000@yhoo.co.in">suresh492000@yhoo.co.in</a><br clear="none">> <br clear="none">> Mob. +91-9818005663, 8368908608<br clear="none">> =========================================<br clear="none">> Alexander von Humboldt Fellow (Germany),<br clear="none">> Former Director, School of Physical Sciences,<br clear="none">> S.R.T.M. University, Nanded (Maharashtra)</div><br clear="none">> <h2cs_opt-fixed_modified.out><H2CS_opt2_modified.out>_______________________________________________<br clear="none">> Molpro-user mailing list<br clear="none">> <a shape="rect" ymailto="mailto:Molpro-user@molpro.net" href="mailto:Molpro-user@molpro.net">Molpro-user@molpro.net</a><br clear="none">> <a shape="rect" href="http://www.molpro.net/mailman/listinfo/molpro-user" target="_blank">http://www.molpro.net/mailman/listinfo/molpro-user</a><div class="yqt0341642337" id="yqtfd78017"><br clear="none"></div></div><br><br></div>  </div> </div>  </div></div></body></html>