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	hartrees
Energy at 0K	-205.404510
Energy at 298.15K	-205.406838
HF Energy	-204.722280
Nuclear repulsion energy	70.091740

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3834	3663	80.88
2	A'	1782	1703	123.56
3	A'	1348	1288	177.69
4	A'	877	838	161.59
5	A'	662	633	74.64
6	A"	573	547	99.55

Atom	x (Å)	y (Å)
H1	1.750	-0.144
O2	0.891	-0.581
N3	0.000	0.516
O4	-1.109	0.147

	H1	O2	N3	O4
H1		0.9636	1.8698	2.8740
O2	0.9636		1.4124	2.1285
N3	1.8698	1.4124		1.1689
O4	2.8740	2.1285	1.1689

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

using model chemistry: QCISD/cc-pVTZ

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/cc-pVTZ

States and conformations

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