<div dir="ltr"><div><div>Dear All,<br><br></div>Is it possible to do CASSCF (or even HF) calculation with out using spin symmetry at all with MOLPRO...??<br><br><br></div><div>For example, in the case of Oxygen molecule if I do HF or CASSCF calculation without specifying the multiplicity, it should give the energy of lowest triplet state which is the ground state of Oxygen.<br>
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