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	hartrees
Energy at 0K	-205.201579
Energy at 298.15K	-205.203886
HF Energy	-204.653663
Nuclear repulsion energy	69.326694

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3786	3606	85.17
2	A'	1679	1599	80.07
3	A'	1299	1237	180.68
4	A'	853	812	170.53
5	A'	625	595	119.04
6	A"	591	563	99.48

Atom	x (Å)	y (Å)
H1	-1.758	-0.114
O2	-0.904	-0.579
N3	0.000	0.521
O4	1.124	0.138

	H1	O2	N3	O4
H1		0.9730	1.8694	2.8931
O2	0.9730		1.4234	2.1506
N3	1.8694	1.4234		1.1870
O4	2.8931	2.1506	1.1870

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

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ

States and conformations

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