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 HOCH (hydroxycarbene)

Property		Experiment	Calculated	Comparison
Energies Entropies	Enthalpy 298.15K
	Enthalpy 0K
	Energy 0K		740
	Energy 298.15K		725
	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		736
	HOMO-LUMO Energies		741
	Barriers to Internal Rotation		450
Geometries	Cartesians		741
	Internal Coordinates		739
	Products of moments of inertia		727
	Rotational Constants		741
	Point Group		744
Vibrations	Vibrational Frequencies	fun.	735	x
	Vibrational Intensities		672
	Zero-point energies	x	735	x
	Vibrational scaling factors	x
	Anharmonic frequencies and constants
	Raman frequencies and intensities		10
Electronic States	Electronic states	x	0
Electrostatics	Atom charges		454
	Dipole		593
	Quadrupole		527
	Polarizability		502
Other results	Spin		0
	Number of basis functions		59
	Conformations		3	x