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 C₅H₈ (1,2-Butadiene, 3-methyl-)

Property		Experiment	Calculated	Comparison
Energies Entropies	Enthalpy 298.15K	x
	Enthalpy 0K	x
	Energy 0K		234
	Energy 298.15K		225
	Atomization Enthalpy 298.15K	x	159	x
	Atomization Enthalpy 0K	x	161	x
	Entropy (298.15K)	x	155	x
	Entropy at any temperature		155
	Integrated Heat Capacity	x	155	x
	Heat Capacity (Cp)	x	155	x
	Nuclear Repulsion Energy		223
	HOMO-LUMO Energies		222
	Barriers to Internal Rotation		0
Geometries	Cartesians		198
	Internal Coordinates	x	197	x
	Products of moments of inertia	x	218	x
	Rotational Constants	x	222	x
	Point Group		221
Vibrations	Vibrational Frequencies	fun.	220	x
	Vibrational Intensities		235
	Zero-point energies		220
	Vibrational scaling factors
	Anharmonic frequencies and constants		1
	Raman frequencies and intensities		5
Electronic States	Electronic states	x	0
Electrostatics	Atom charges		186
	Dipole	x	195	x
	Quadrupole		188
	Polarizability		175
Other results	Spin		0
	Number of basis functions		6
	Conformations		1