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	hartrees
Energy at 0K	-204.521940
Energy at 298.15K	-204.524308
Nuclear repulsion energy	70.477975

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	4018	3628	133.08
2	A'	1902	1717	127.99
3	A'	1423	1285	218.99
4	A'	941	849	211.45
5	A'	734	663	29.83
6	A"	563	508	206.08

Atom	x (Å)	y (Å)
H1	1.777	-0.208
O2	0.890	-0.557
N3	0.000	0.507
O4	-1.112	0.139

	H1	O2	N3	O4
H1		0.9531	1.9152	2.9094
O2	0.9531		1.3870	2.1193
N3	1.9152	1.3870		1.1712
O4	2.9094	2.1193	1.1712

Number	Element	Mulliken	CHELPG
1	H	0.425	0.406
2	O	-0.567	-0.412
3	N	0.497	0.178
4	O	-0.355	-0.172

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

using model chemistry: HF/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
	-0.087	-1.848	0.000	1.850
CHELPG	2.626	1.017	0.000	2.816
AIM
ESP

	x	y	z
x	3.484	-0.281	0.000
y	-0.281	1.402	0.000
z	0.000	0.000	0.818

<r²>	33.993
(<r²>)^1/2	5.830

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

using model chemistry: HF/6-31G

States and conformations

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