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	hartrees
Energy at 0K	-473.854168
Energy at 298.15K
HF Energy	-473.399644
Nuclear repulsion energy	125.026304

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	576	555
2	A_g	337	325
3	B_1u	544	524
4	B_2u	253	244
5	B_3g	478	460
6	B_3u	60	57

Atom	y (Å)	z (Å)
Na1	0.000	1.946
Na2	0.000	-1.946
O3	0.826	0.000
O4	-0.826	0.000

	Na1	Na2	O3	O4
Na1		3.8929	2.1145	2.1145
Na2	3.8929		2.1145	2.1145
O3	2.1145	2.1145		1.6525
O4	2.1145	2.1145	1.6525

atom1	atom2	atom3	angle		atom1	atom2	atom3	angle
Na1	O3	Na2	133.998		Na1	O4	Na2	133.998
O3	Na1	O4	46.002		O3	Na2	O4	46.002

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

using model chemistry: QCISD(T)/TZVP

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)/TZVP

States and conformations

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