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	hartrees
Energy at 0K	-408.907653
Energy at 298.15K
HF Energy	-408.034988
Nuclear repulsion energy	244.421306

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	1543	1428	0.00
2	A_g	900	833	0.00
3	A_g	409	379	0.00
4	A_u	81	75	0.00
5	B_1u	1459	1350	407.67
6	B_1u	831	769	208.62
7	B_2g	815	755	0.00
8	B_2u	2002	1854	804.35
9	B_2u	329	304	0.23
10	B_3g	1970	1824	0.00
11	B_3g	601	557	0.00
12	B_3u	539	499	31.93

Atom	y (Å)	z (Å)
N1	0.000	0.814
N2	0.000	-0.814
O3	1.088	1.276
O4	-1.088	1.276
O5	1.088	-1.276
O6	-1.088	-1.276

	N1	N2	O3	O4	O5	O6
N1		1.6280	1.1817	1.1817	2.3562	2.3562
N2	1.6280		2.3562	2.3562	1.1817	1.1817
O3	1.1817	2.3562		2.1751	2.5524	3.3535
O4	1.1817	2.3562	2.1751		3.3535	2.5524
O5	2.3562	1.1817	2.5524	3.3535		2.1751
O6	2.3562	1.1817	3.3535	2.5524	2.1751

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
N1	N2	O5	113.026	N1	N2	O6	113.026
N2	N1	O3	113.026	N2	N1	O4	113.026
O3	N1	O4	133.949	O5	N2	O6	133.949

All results from a given calculation for N₂O₄ (Dinitrogen tetroxide)

using model chemistry: CISD/6-31G*

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 N2O4 (Dinitrogen tetroxide)

using model chemistry: CISD/6-31G*

States and conformations

All results from a given calculation for N₂O₄ (Dinitrogen tetroxide)