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 C₄H₈O₂ (Ethene, 1,1-dimethoxy-)

Property		Experiment	Calculated	Comparison
Energies Entropies	Enthalpy 298.15K	x
	Enthalpy 0K
	Energy 0K		216
	Energy 298.15K		207
	Atomization Enthalpy 298.15K	x	150	x
	Atomization Enthalpy 0K		150
	Entropy (298.15K)		142
	Entropy at any temperature		142
	Integrated Heat Capacity		142
	Heat Capacity (Cp)		142
	Nuclear Repulsion Energy		203
	HOMO-LUMO Energies		203
	Barriers to Internal Rotation		0
Geometries	Cartesians		181
	Internal Coordinates		180
	Products of moments of inertia		200
	Rotational Constants		204
	Point Group		205
Vibrations	Vibrational Frequencies		199
	Vibrational Intensities		209
	Zero-point energies		199
	Vibrational scaling factors
	Anharmonic frequencies and constants		1
	Raman frequencies and intensities		5
Electronic States	Electronic states	x	0
Electrostatics	Atom charges		178
	Dipole		184
	Quadrupole		175
	Polarizability		165
Other results	Spin		0
	Number of basis functions		5
	Conformations		1