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	hartrees
Energy at 0K	-204.526378
Energy at 298.15K	-204.528527
Nuclear repulsion energy	64.983594

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3243	3222	6.38
2	A'	1405	1396	55.34
3	A'	1142	1134	162.95
4	A'	795	790	68.50
5	A'	501	498	27.42
6	A"	543	540	93.96

Atom	x (Å)	y (Å)
H1	-1.842	-0.200
O2	-0.947	-0.686
N3	0.000	0.571
O4	1.177	0.211

	H1	O2	N3	O4
H1		1.0184	1.9971	3.0472
O2	1.0184		1.5742	2.3060
N3	1.9971	1.5742		1.2311
O4	3.0472	2.3060	1.2311

Number	Element	Mulliken
1	H	0.312
2	O	-0.335
3	N	0.261
4	O	-0.238

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

using model chemistry: BLYP/3-21G*

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
	0.308	-1.466	0.000	1.498
CHELPG
AIM
ESP

<r²>	37.731
(<r²>)^1/2	6.143

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

using model chemistry: BLYP/3-21G*

States and conformations

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