Singlet Oxygen with UHF



 Hi,
 can anybody please tell me how to compute the lowest singlet state
 of the oxygen molecule (singlet-Delta_gerade, 0.984 eV above the
 triplet-Sigma_gerade ground state) with the UHF method ?
 I would greatly appreciate any help.
 Ciao,
 Heinz
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 Dr. Heinz Schiffer		Phone   ++49-69-305-2330
 Hoechst CR&T			Fax     ++49-69-305-81162
 Scientific Computing, G864	Email   schiffer at.at h1tw0036.hoechst.com
 65926 Frankfurt am Main		        schiffer at.at msmwia.hoechst.com