<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><div id="yiv118559210">Dear Molpro Users,<br> I want to calculate Spin Orbit Coupling constant between triplet sigma and singlet sigma of carbon monoxide dication.I am getting -0.55 cm- but the reported value is 120 cm-.The ground electronic state is triplet pi.Can you kindly tell me where i am doing wrong.I am giving the input for the calculation.How to analyse the output for the spin orbit calculations.<br><br> Thanks in advance<br>The input is as follows<br><br>***,co<br>print,basis,orbitals;<br>basis={spdf,c,vqz;spdf,o,vqz}<br>geomtyp=zmat<br>geometry={<br>bohr<br>C<br>O 1
r1}<br>end<br>r1=4<br>hf;wf,12,1,2;<br>!set,charge=2;<br>casscf;wf,12,1,0,state,2;<br>casscf;wf,12,4,2,state,2;<br>mrci;<br>MAXITER,126,126;<br>wf,12,1,0;<br>state,2;<br>save,4010.1;<br>mrci;<br>MAXITER,256,256;<br>wf,12,4,2;<br>state,2;<br>save,4042.1;<br>ci;hlsmat,ls,4010.1,4042.1;<br>put,molden,test5.molden;<br><br><br><div id="yiv118559210">The out put is as follows<br><br> Eigenvalues of the spin-orbit matrix<br> ....................................<br><br> <span>Nr</span> Sym E E-E0 E-E0 E-E(1) E-E(1) E-E(1)<br>
(au) (au) (cm-1) (au) (cm-1) (eV)<br> 1 1 -111.66658284 -0.00000251 -0.55 0.00000000 0.00 0.0000<br> 2 1 -111.56933678 0.09724355 21342.49 0.09724607 21343.04 2.6462<br> 3 1 -111.52300718 0.14357315 31510.66 0.14357567
31511.22 3.9069<br> 4 1 -111.51933886 0.14724147 32315.77 0.14724398 32316.32 4.0067<br> <br> 5 2 -111.66658033 0.00000000 0.00 0.00000251 0.55 0.0001<br> 6 2 -111.51935394 0.14722639 32312.46 0.14722890 32313.01 4.0063<br> <br> 7 3 -111.66658033 0.00000000
0.00 0.00000251 0.55 0.0001<br> 8 3 -111.51935394 0.14722639 32312.46 0.14722890 32313.01 4.0063<br><br> E0 = -111.66658033 is the energy of the lowest zeroth-order state<br> E1 = -111.66658284 is the energy of the lowest SO-state<br><br><br><br><br><div style="text-align: right;"><div style="margin-left: 400px;"><span style="color: rgb(255, 64, 64); font-style: italic;">Rajagopala Reddy.Seelam</span><br></div><span style="color: rgb(255, 64, 64);"></span></div></div><br><br></div></td></tr></table><br>
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