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	hartrees
Energy at 0K	-473.962626
Energy at 298.15K
HF Energy	-473.416864
Nuclear repulsion energy	125.100739

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	626	594
2	A_g	344	326
3	B_1u	540	512
4	B_2u	249	236
5	B_3g	473	449
6	B_3u	62	59

Atom	y (Å)	z (Å)
Na1	0.000	1.958
Na2	0.000	-1.958
O3	0.811	0.000
O4	-0.811	0.000

	Na1	Na2	O3	O4
Na1		3.9165	2.1196	2.1196
Na2	3.9165		2.1196	2.1196
O3	2.1196	2.1196		1.6222
O4	2.1196	2.1196	1.6222

atom1	atom2	atom3	angle		atom1	atom2	atom3	angle
Na1	O3	Na2	135.002		Na1	O4	Na2	135.002
O3	Na1	O4	44.998		O3	Na2	O4	44.998

All results from a given calculation for Na₂O₂ (disodium dioxide)

using model chemistry: QCISD(T)/cc-pVTZ

States and conformations

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for Na2O2 (disodium dioxide)

using model chemistry: QCISD(T)/cc-pVTZ

States and conformations

All results from a given calculation for Na₂O₂ (disodium dioxide)