<div dir="ltr"><p>Dear developers,</p><p>The input file of HF/STO-3G calculation of C2H6 is given below.<br>With and without symmetry, the ordering of atoms in the [Atoms] section of the Molden file are the same,<br>but the MO coefficients are different. For example, orbital 1.4 (E = -0.4566),</p>
<p> without symmetry with symmetry<br> 1 0.00000000000 0.00000000000<br>...<br> 12 0.33901515512 0.00000000000<br> 13 -0.33901461639 0.33901488579<br> 14 -0.00000053873 -0.33901488579<br> 15 -0.33901461639 -0.33901488579<br>
16 0.33901515512 0.33901488579</p><div>It seems the problem is in [Atoms]. The atoms should be reordered as in the output file.</div><div> </div><div>***,C2H6<br>memory,20,m</div><div>basis=sto-3g</div><div>! symmetry,NOSYM;</div>
<div>geometry={<br>C 0.0000000000 0.0000000000 -0.7632315550<br>C 0.0000000000 0.0000000000 0.7632315550<br>H 1.0171173269 0.0000000000 -1.1593727325<br>H -0.5085586635 -0.8808494438 -1.1593727325<br>
H -0.5085586635 0.8808494438 -1.1593727325<br>H -1.0171173269 0.0000000000 1.1593727325<br>H 0.5085586635 -0.8808494438 1.1593727325<br>H 0.5085586635 0.8808494438 1.1593727325<br>
}</div><div>rhf;<br>put,molden,c2h6.mol<br>---<br></div><div>Best regards,<br>Wenli</div></div>