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 Se₂^- (selenium diatomic anion)

Property		Experiment	Calculated	Comparison
Energies Entropies	Enthalpy 298.15K	x
	Enthalpy 0K
	Energy 0K		253
	Energy 298.15K		240
	Atomization Enthalpy 298.15K		0
	Atomization Enthalpy 0K		0
	Entropy (298.15K)		0
	Entropy at any temperature		0
	Integrated Heat Capacity		0
	Heat Capacity (Cp)		0
	Nuclear Repulsion Energy		246
	HOMO-LUMO Energies		249
	Barriers to Internal Rotation		0
Geometries	Cartesians		250
	Internal Coordinates		250
	Products of moments of inertia		241
	Rotational Constants		247
	Point Group		250
Vibrations	Vibrational Frequencies	har.	247	x
	Vibrational Intensities		241
	Zero-point energies	x	247	x
	Vibrational scaling factors	x
	Anharmonic frequencies and constants
	Raman frequencies and intensities		5
Electronic States	Electronic states	x	0
Electrostatics	Atom charges		146
	Dipole		166
	Quadrupole		161
	Polarizability		158
Other results	Spin		248
	Number of basis functions		50
	Conformations		1