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	hartrees
Energy at 0K	-205.165495
Energy at 298.15K	-205.167857
HF Energy	-204.633539
Nuclear repulsion energy	70.113708

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3787	3553	75.00
2	A'	1838	1725	87.95
3	A'	1398	1312	206.56
4	A'	952	894	185.56
5	A'	700	657	42.29
6	A"	584	548	125.20

Atom	x (Å)	y (Å)
H1	1.731	-0.082
O2	0.871	-0.536
N3	0.000	0.539
O4	-1.087	0.075

	H1	O2	N3	O4
H1		0.9721	1.8386	2.8223
O2	0.9721		1.3832	2.0514
N3	1.8386	1.3832		1.1819
O4	2.8223	2.0514	1.1819

All results from a given calculation for HNO₂ (Nitrous acid)

using model chemistry: MP3=FULL/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 HNO2 (Nitrous acid)

using model chemistry: MP3=FULL/6-31G*

States and conformations

All results from a given calculation for HNO₂ (Nitrous acid)