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	hartrees
Energy at 0K	-205.192659
Energy at 298.15K	-205.195005
HF Energy	-204.648249
Nuclear repulsion energy	70.142875

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3901	3634	89.85
2	A'	1831	1706	120.25
3	A'	1379	1285	197.85
4	A'	921	858	211.05
5	A'	697	650	55.70
6	A"	564	525	127.68

Atom	x (Å)	y (Å)
H1	1.730	-0.094
O2	0.874	-0.538
N3	0.000	0.534
O4	-1.090	0.082

	H1	O2	N3	O4
H1		0.9642	1.8406	2.8261
O2	0.9642		1.3832	2.0600
N3	1.8406	1.3832		1.1806
O4	2.8261	2.0600	1.1806

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

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

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/6-31+G**

States and conformations

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