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	hartrees
Energy at 0K	-205.656363
Energy at 298.15K	-205.658714
Nuclear repulsion energy	70.236847

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3823	3638	93.74
2	A'	1825	1737	170.93
3	A'	1328	1264	199.89
4	A'	892	849	194.76
5	A'	674	641	82.44
6	A"	604	575	121.07

Atom	x (Å)	y (Å)
H1	1.760	-0.136
O2	0.892	-0.565
N3	0.000	0.510
O4	-1.112	0.136

	H1	O2	N3	O4
H1		0.9686	1.8748	2.8848
O2	0.9686		1.3970	2.1229
N3	1.8748	1.3970		1.1733
O4	2.8848	2.1229	1.1733

Number	Element	Mulliken
1	H	0.362
2	O	-0.203
3	N	-0.152
4	O	-0.007

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

using model chemistry: mPW1PW91/6-31+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
	2.269	0.624	0.000	2.354
CHELPG
AIM
ESP

<r²>	33.930
(<r²>)^1/2	5.825

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

using model chemistry: mPW1PW91/6-31+G**

States and conformations

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