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	hartrees
Energy at 0K	-205.184715
Energy at 298.15K	-205.187028
HF Energy	-204.636615
Nuclear repulsion energy	69.349086

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3838	3614	63.43
2	A'	1767	1664	101.02
3	A'	1338	1260	178.77
4	A'	879	827	144.88
5	A'	647	609	60.37
6	A"	573	539	113.35

Atom	x (Å)	y (Å)
H1	1.765	-0.138
O2	0.901	-0.577
N3	0.000	0.525
O4	-1.122	0.136

	H1	O2	N3	O4
H1		0.9688	1.8851	2.8998
O2	0.9688		1.4237	2.1454
N3	1.8851	1.4237		1.1876
O4	2.8998	2.1454	1.1876

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

using model chemistry: QCISD/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: QCISD/6-31G**

States and conformations

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