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	hartrees
Energy at 0K	-204.744082
Energy at 298.15K	-204.746525
Nuclear repulsion energy	72.481078

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	4129	3751	133.84
2	A'	2014	1830	171.75
3	A'	1496	1359	248.81
4	A'	1070	972	248.36
5	A'	799	725	25.51
6	A"	594	539	120.02

Atom	x (Å)	y (Å)
H1	1.724	-0.143
O2	0.867	-0.537
N3	0.000	0.488
O4	-1.083	0.128

	H1	O2	N3	O4
H1		0.9429	1.8358	2.8199
O2	0.9429		1.3429	2.0607
N3	1.8358	1.3429		1.1411
O4	2.8199	2.0607	1.1411

Number	Element	Mulliken
1	H	0.242
2	O	-0.261
3	N	0.214
4	O	-0.195

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

using model chemistry: HF/cc-pVQZ

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
	2.385	0.613	0.000	2.462
CHELPG
AIM
ESP

	x	y	z
x	3.606	-0.247	0.000
y	-0.247	2.070	0.000
z	0.000	0.000	1.613

<r²>	32.361
(<r²>)^1/2	5.689

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

using model chemistry: HF/cc-pVQZ

States and conformations

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