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	hartrees
Energy at 0K	-409.291629
Energy at 298.15K
HF Energy	-408.202021
Nuclear repulsion energy	247.478451

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	1557	1435	0.00
2	A_g	928	855	0.00
3	A_g	423	390	0.00
4	A_u	73	67	0.00
5	B_1u	1464	1350	413.58
6	B_1u	849	782	219.27
7	B_2g	878	810	0.00
8	B_2u	2001	1844	994.16
9	B_2u	332	306	0.00
10	B_3g	1949	1797	0.00
11	B_3g	600	553	0.00
12	B_3u	567	523	29.37

Atom	y (Å)	z (Å)
N1	0.000	0.809
N2	0.000	-0.809
O3	1.072	1.263
O4	-1.072	1.263
O5	1.072	-1.263
O6	-1.072	-1.263

	N1	N2	O3	O4	O5	O6
N1		1.6175	1.1644	1.1644	2.3331	2.3331
N2	1.6175		2.3331	2.3331	1.1644	1.1644
O3	1.1644	2.3331		2.1439	2.5269	3.3138
O4	1.1644	2.3331	2.1439		3.3138	2.5269
O5	2.3331	1.1644	2.5269	3.3138		2.1439
O6	2.3331	1.1644	3.3138	2.5269	2.1439

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
N1	N2	O5	112.986	N1	N2	O6	112.986
N2	N1	O3	112.986	N2	N1	O4	112.986
O3	N1	O4	134.027	O5	N2	O6	134.027

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

using model chemistry: CISD/6-311+G(3df,2p)

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/6-311+G(3df,2p)

States and conformations

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