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	hartrees
Energy at 0K	-42.323662
Energy at 298.15K	-42.326010
Nuclear repulsion energy	39.231454

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3806	3643	77.20
2	A'	1814	1736	147.31
3	A'	1329	1272	211.04
4	A'	912	873	188.14
5	A'	661	632	54.25
6	A"	614	587	123.33

Atom	x (Å)	y (Å)
H1	1.770	-0.114
O2	0.904	-0.563
N3	0.000	0.517
O4	-1.126	0.124

	H1	O2	N3	O4
H1		0.9753	1.8795	2.9056
O2	0.9753		1.4087	2.1429
N3	1.8795	1.4087		1.1922
O4	2.9056	2.1429	1.1922

Number	Element	Mulliken
1	H	0.387
2	O	-0.333
3	N	-0.025
4	O	-0.028

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

using model chemistry: B1B95/CEP-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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Calc. vs exp. Bad Vib. HF vs MP2 Bad scale factors Low excited states Oddities NaCN Is not linear FAQ Help Units Choose Units Energy Bond length Rotational Constant Moment of Inertia Dipole and Quadrupole Polarizability Explanations Hartree cm-1 Debye Credits Just show me Show me a calculated geometry Summary Using older interface Limit Basis sets Method options List Recent molecules Choose a few Molecules Number of atoms By heavy atoms Diatomics InChI Deuterated Dimers Geometry Point group Point group count Bonds types Isodesmic reactions Bad point group Multiple conformers, states Vibrations Big anharmonicity Energy Enthalpy at 0 Kelvin Similar molecules Similar Isomers Cis/trans Tautomers Multiple conformers, states Ions, Dipoles, etc. List Ions Ionization changes point group Dipole Quadrupole Polarizability Proton Affinities Index of CCCBDB Feedback Error form Wants
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	x	y	z	Total
	2.319	0.614	0.000	2.399
CHELPG
AIM
ESP

	x	y	z
x	3.872	-0.394	0.000
y	-0.394	1.912	0.000
z	0.000	0.000	1.121

<r²>	0.000
(<r²>)^1/2	0.000

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

using model chemistry: B1B95/CEP-31G*

States and conformations

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