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 H₂CSe (Selenoformaldehyde)

Property		Experiment	Calculated	Comparison
Energies Entropies	Enthalpy 298.15K
	Enthalpy 0K
	Energy 0K		636
	Energy 298.15K		9
	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		636
	HOMO-LUMO Energies		572
	Barriers to Internal Rotation		0
Geometries	Cartesians	x	636
	Internal Coordinates	x	636	x
	Products of moments of inertia	x	629	x
	Rotational Constants	x	636	x
	Point Group		637
Vibrations	Vibrational Frequencies	fun.	634	x
	Vibrational Intensities		570
	Zero-point energies	x	634	x
	Vibrational scaling factors	x
	Anharmonic frequencies and constants
	Raman frequencies and intensities		456
Electronic States	Electronic states	x	0
Electrostatics	Atom charges		373
	Dipole	x	533	x
	Quadrupole		434
	Polarizability		444
Other results	Spin		0
	Number of basis functions		34
	Conformations		1