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	hartrees
Energy at 0K	-205.173822
Energy at 298.15K	-205.176134
HF Energy	-204.630111
Nuclear repulsion energy	69.286670

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3707	3530	63.60
2	A'	1770	1686	97.93
3	A'	1353	1289	184.44
4	A'	880	838	143.51
5	A'	647	616	59.78
6	A"	578	551	118.13

Atom	x (Å)	y (Å)
H1	1.773	-0.136
O2	0.901	-0.578
N3	0.000	0.525
O4	-1.122	0.136

	H1	O2	N3	O4
H1		0.9779	1.8921	2.9082
O2	0.9779		1.4241	2.1459
N3	1.8921	1.4241		1.1876
O4	2.9082	2.1459	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)