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	hartrees
Energy at 0K	-205.715349
Energy at 298.15K	-205.717673
Nuclear repulsion energy	69.767731

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3760	3628	64.20
2	A'	1785	1723	132.21
3	A'	1318	1272	177.75
4	A'	862	831	138.88
5	A'	642	619	85.61
6	A"	599	578	94.33

Atom	x (Å)	y (Å)
H1	1.760	-0.155
O2	0.893	-0.588
N3	0.000	0.518
O4	-1.113	0.154

	H1	O2	N3	O4
H1		0.9689	1.8847	2.8902
O2	0.9689		1.4219	2.1394
N3	1.8847	1.4219		1.1714
O4	2.8902	2.1394	1.1714

Number	Element	Mulliken
1	H	0.308
2	O	-0.354
3	N	0.194
4	O	-0.148

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

using model chemistry: B3LYP/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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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
	1.977	0.459	0.000	2.029
CHELPG
AIM
ESP

	x	y	z
x	3.786	-0.464	-0.000
y	-0.464	2.031	0.000
z	-0.000	0.000	1.457

<r²>	33.911
(<r²>)^1/2	5.823

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

using model chemistry: B3LYP/6-31G(2df,p)

States and conformations

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