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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All data (experiment and calculated) in the CCCBDB for CN⁺ (Cyano cation)

Property		Experiment	Calculated	Comparison
Energies Entropies	Enthalpy 298.15K	x
	Enthalpy 0K
	Energy 0K		307
	Energy 298.15K		281
	Atomization Enthalpy 298.15K		0
	Atomization Enthalpy 0K		0
	Entropy (298.15K)		211
	Entropy at any temperature		211
	Integrated Heat Capacity		211
	Heat Capacity (Cp)		211
	Nuclear Repulsion Energy		294
	HOMO-LUMO Energies		284
	Barriers to Internal Rotation		0
Geometries	Cartesians		282
	Internal Coordinates		282
	Products of moments of inertia		278
	Rotational Constants		282
	Point Group		298
Vibrations	Vibrational Frequencies	fun. har.	283	x
	Vibrational Intensities		270
	Zero-point energies	x	283	x
	Vibrational scaling factors	x
	Anharmonic frequencies and constants
	Raman frequencies and intensities		5
Electronic States	Electronic states	x	0
Electrostatics	Atom charges		166
	Dipole		178
	Quadrupole		173
	Polarizability		179
Other results	Spin		0
	Number of basis functions		45
	Conformations		1