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	hartrees
Energy at 0K	-205.502381
Energy at 298.15K	-205.504630
Nuclear repulsion energy	68.382623

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3582	3531	38.73
2	A'	1743	1718	140.91
3	A'	1256	1238	162.95
4	A'	806	795	99.18
5	A'	561	553	94.94
6	A"	604	596	98.43

Atom	x (Å)	y (Å)
H1	1.781	-0.163
O2	0.907	-0.618
N3	0.000	0.533
O4	-1.130	0.172

	H1	O2	N3	O4
H1		0.9855	1.9125	2.9305
O2	0.9855		1.4654	2.1848
N3	1.9125	1.4654		1.1862
O4	2.9305	2.1848	1.1862

Number	Element	Mulliken
1	H	0.400
2	O	-0.438
3	N	0.217
4	O	-0.180

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

using model chemistry: PBEPBE/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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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
	1.910	0.548	0.000	1.987
CHELPG
AIM
ESP

	x	y	z
x	3.876	-0.537	0.000
y	-0.537	1.925	0.000
z	0.000	0.000	1.153

<r²>	34.989
(<r²>)^1/2	5.915

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

using model chemistry: PBEPBE/6-31G*

States and conformations

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