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	hartrees
Energy at 0K	-205.522774
Energy at 298.15K	-205.525000
Nuclear repulsion energy	68.425625

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3639	3598	62.80
2	A'	1732	1712	193.25
3	A'	1226	1212	163.28
4	A'	773	764	104.45
5	A'	553	547	138.74
6	A"	588	581	108.32

Atom	x (Å)	y (Å)
H1	1.785	-0.179
O2	0.907	-0.620
N3	0.000	0.531
O4	-1.130	0.177

	H1	O2	N3	O4
H1		0.9826	1.9207	2.9358
O2	0.9826		1.4651	2.1863
N3	1.9207	1.4651		1.1840
O4	2.9358	2.1863	1.1840

Number	Element	Mulliken
1	H	0.345
2	O	-0.193
3	N	-0.199
4	O	0.047

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

using model chemistry: PBEPBE/6-31+G**

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
	1.930	0.655	0.000	2.038
CHELPG
AIM
ESP

	x	y	z
x	4.469	-0.655	0.000
y	-0.655	2.740	0.000
z	0.000	0.000	1.883

<r²>	35.461
(<r²>)^1/2	5.955

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

using model chemistry: PBEPBE/6-31+G**

States and conformations

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