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State	Conformation	minimum conformation	conformer description	state description
1	1	yes	D*H	³Σ_g
2	1	yes	D*H	¹Δ_g

	hartrees
Energy at 0K	-150.035289
Energy at 298.15K	-150.035281
HF Energy	-149.624381
Nuclear repulsion energy	27.643309

Atom	x (Å)	y (Å)	z (Å)
O1	0.000	0.000	0.613
O2	0.000	0.000	-0.613

	O1	O2
O1		1.2252
O2	1.2252

	hartrees
Energy at 0K	-149.986500
Energy at 298.15K	-149.986483
HF Energy	-149.532635
Nuclear repulsion energy	27.120055

All results from a given calculation for O₂ (Oxygen diatomic)

using model chemistry: MP2/6-31G(2df,p)

States and conformations

State 1 (³Σ_g)

State 2 (¹Δ_g)

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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	O1	O2
O1		1.2488
O2	1.2488

All results from a given calculation for O2 (Oxygen diatomic)

using model chemistry: MP2/6-31G(2df,p)

States and conformations

State 1 (3Σg)

State 2 (1Δg)

All results from a given calculation for O₂ (Oxygen diatomic)

State 1 (³Σ_g)

State 2 (¹Δ_g)