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	hartrees
Energy at 0K	-204.955935
Energy at 298.15K	-204.958014
HF Energy	-204.555556
Nuclear repulsion energy	65.227131

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3573	3449	34.09
2	A'	1370	1322	42.38
3	A'	1150	1110	184.90
4	A'	676	652	125.71
5	A'	493	476	202.58
6	A"	528	509	168.00

Atom	x (Å)	y (Å)
H1	1.854	-0.245
O2	0.948	-0.654
N3	0.000	0.573
O4	-1.180	0.184

	H1	O2	N3	O4
H1		0.9938	2.0266	3.0646
O2	0.9938		1.5508	2.2877
N3	2.0266	1.5508		1.2428
O4	3.0646	2.2877	1.2428

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

using model chemistry: MP2/SDD

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/SDD

States and conformations

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