Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All data (experiment and calculated) in the CCCBDB for HNO₂ (Nitrous acid)

Property		Experiment	Calculated	Comparison
Energies Entropies	Enthalpy 298.15K	x
	Enthalpy 0K	x
	Energy 0K		315
	Energy 298.15K		306
	Atomization Enthalpy 298.15K	x	242	x
	Atomization Enthalpy 0K	x	242	x
	Entropy (298.15K)	x	210	x
	Entropy at any temperature		210
	Integrated Heat Capacity	x	210	x
	Heat Capacity (Cp)	x	207	x
	Nuclear Repulsion Energy		270
	HOMO-LUMO Energies		253
	Barriers to Internal Rotation		425
Geometries	Cartesians	x	230
	Internal Coordinates	x	229	x
	Products of moments of inertia	x	246	x
	Rotational Constants	x	251	x
	Point Group		250
Vibrations	Vibrational Frequencies	fun.	249	x
	Vibrational Intensities		253
	Zero-point energies	x	249	x
	Vibrational scaling factors	x
	Anharmonic frequencies and constants		1
	Raman frequencies and intensities		5
Electronic States	Electronic states	x	0
Electrostatics	Atom charges		196
	Dipole		196
	Quadrupole		186
	Polarizability		177
Other results	Spin		9
	Number of basis functions		34
	Conformations		1