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	hartrees
Energy at 0K	-205.184403
Energy at 298.15K	-205.186716
HF Energy	-204.634880
Nuclear repulsion energy	69.097187

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3814	3563	74.30
2	A'	1661	1552	68.03
3	A'	1304	1218	191.57
4	A'	865	808	184.76
5	A'	630	589	100.87
6	A"	601	562	114.22

Atom	x (Å)	y (Å)
H1	-1.766	-0.117
O2	-0.908	-0.572
N3	0.000	0.524
O4	1.129	0.128

	H1	O2	N3	O4
H1		0.9710	1.8787	2.9054
O2	0.9710		1.4233	2.1541
N3	1.8787	1.4233		1.1966
O4	2.9054	2.1541	1.1966

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

using model chemistry: MP2=FULL/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: MP2=FULL/6-31G**

States and conformations

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