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	hartrees
Energy at 0K	-203.837739
Energy at 298.15K	-203.839918
HF Energy	-203.459252
Nuclear repulsion energy	66.496337

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3483	3331	11.54
2	A'	1443	1380	4.99
3	A'	1255	1201	162.64
4	A'	842	805	102.95
5	A'	577	552	26.73
6	A"	478	457	130.75

Atom	x (Å)	y (Å)
H1	1.817	-0.173
O2	0.932	-0.629
N3	0.000	0.560
O4	-1.159	0.161

	H1	O2	N3	O4
H1		0.9959	1.9596	2.9949
O2	0.9959		1.5109	2.2351
N3	1.9596	1.5109		1.2258
O4	2.9949	2.2351	1.2258

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

using model chemistry: CCD/3-21G*

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: CCD/3-21G*

States and conformations

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