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	hartrees
Energy at 0K	-205.719032
Energy at 298.15K	-205.721339
HF Energy	-205.719032
Nuclear repulsion energy	69.440063

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3732	3601	55.15
2	A'	1768	1707	135.04
3	A'	1301	1256	171.07
4	A'	837	808	127.10
5	A'	614	593	94.07
6	A"	610	589	92.39

Atom	x (Å)	y (Å)
H1	1.739	-0.096
O2	0.880	-0.551
N3	0.000	0.534
O4	-1.097	0.095

	H1	O2	N3	O4
H1		0.9716	1.8497	2.8428
O2	0.9716		1.3973	2.0804
N3	1.8497	1.3973		1.1820
O4	2.8428	2.0804	1.1820

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

using model chemistry: TPSSh/6-31G(2df,p)

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: TPSSh/6-31G(2df,p)

States and conformations

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