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 P₂⁺ (phosphorus diatomic cation)

Property		Experiment	Calculated	Comparison
Energies Entropies	Enthalpy 298.15K
	Enthalpy 0K
	Energy 0K		80
	Energy 298.15K		54
	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		69
	HOMO-LUMO Energies		56
	Barriers to Internal Rotation		0
Geometries	Cartesians	x	72
	Internal Coordinates	x	68	x
	Products of moments of inertia	x	52	x
	Rotational Constants	x	55	x
	Point Group		73
Vibrations	Vibrational Frequencies	fun. har.	55	x
	Vibrational Intensities		257
	Zero-point energies	x	55	x
	Vibrational scaling factors	x
	Anharmonic frequencies and constants
	Raman frequencies and intensities		5
Electronic States	Electronic states	x	0
Electrostatics	Atom charges		37
	Dipole		48
	Quadrupole		43
	Polarizability		180
Other results	Spin		71
	Number of basis functions		68
	Conformations		1