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	hartrees
Energy at 0K	-205.274580
Energy at 298.15K	-205.276896
HF Energy	-204.692728
Nuclear repulsion energy	69.694819

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3841	3650	86.72
2	A'	1687	1603	83.56
3	A'	1308	1243	191.76
4	A'	864	821	178.02
5	A'	638	606	124.85
6	A"	588	559	107.31

Atom	x (Å)	y (Å)
H1	-1.750	-0.119
O2	-0.900	-0.576
N3	0.000	0.516
O4	1.119	0.140

	H1	O2	N3	O4
H1		0.9652	1.8619	2.8808
O2	0.9652		1.4154	2.1424
N3	1.8619	1.4154		1.1804
O4	2.8808	2.1424	1.1804

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

using model chemistry: MP2/6-311G**

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: MP2/6-311G**

States and conformations

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