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	hartrees
Energy at 0K	-409.366092
Energy at 298.15K
HF Energy	-408.078867
Nuclear repulsion energy	242.349616

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	1452	1373	0.00
2	A_g	859	812	0.00
3	A_g	365	345	0.00
4	A_u	91	86	0.00
5	B_1u	1363	1289	346.60
6	B_1u	794	751	185.79
7	B_2g	788	745	0.00
8	B_2u	1897	1793	650.65
9	B_2u	294	278	0.06
10	B_3g	1863	1761	0.00
11	B_3g	562	532	0.00
12	B_3u	504	477	21.28

Atom	y (Å)	z (Å)
N1	0.000	0.832
N2	0.000	-0.832
O3	1.095	1.290
O4	-1.095	1.290
O5	1.095	-1.290
O6	-1.095	-1.290

	N1	N2	O3	O4	O5	O6
N1		1.6632	1.1867	1.1867	2.3871	2.3871
N2	1.6632		2.3871	2.3871	1.1867	1.1867
O3	1.1867	2.3871		2.1895	2.5793	3.3833
O4	1.1867	2.3871	2.1895		3.3833	2.5793
O5	2.3871	1.1867	2.5793	3.3833		2.1895
O6	2.3871	1.1867	3.3833	2.5793	2.1895

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
N1	N2	O5	112.706	N1	N2	O6	112.706
N2	N1	O3	112.706	N2	N1	O4	112.706
O3	N1	O4	134.587	O5	N2	O6	134.587

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

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

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: CCSD/6-31G(2df,p)

States and conformations

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