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 C₆H₁₂ (2,3-dimethyl-but-2-ene)

Property		Experiment	Calculated	Comparison
Energies Entropies	Enthalpy 298.15K	x
	Enthalpy 0K
	Energy 0K		9
	Energy 298.15K		2
	Atomization Enthalpy 298.15K	x	0	x
	Atomization Enthalpy 0K		0
	Entropy (298.15K)		0
	Entropy at any temperature		0
	Integrated Heat Capacity		0
	Heat Capacity (Cp)	x	0	x
	Nuclear Repulsion Energy		9
	HOMO-LUMO Energies		9
	Barriers to Internal Rotation		0
Geometries	Cartesians		9
	Internal Coordinates	x	9	x
	Products of moments of inertia		9
	Rotational Constants		9
	Point Group		10
Vibrations	Vibrational Frequencies	fun.	9	x
	Vibrational Intensities		9
	Zero-point energies		9
	Vibrational scaling factors
	Anharmonic frequencies and constants
	Raman frequencies and intensities		5
Electronic States	Electronic states	x	0
Electrostatics	Atom charges		9
	Dipole		9
	Quadrupole		8
	Polarizability		9
Other results	Spin		0
	Number of basis functions		0
	Conformations		1