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 C₁₀H₈ (Azulene)

Property		Experiment	Calculated	Comparison
Energies Entropies	Enthalpy 298.15K	x
	Enthalpy 0K
	Energy 0K		417
	Energy 298.15K		331
	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)	x	0	x
	Nuclear Repulsion Energy		413
	HOMO-LUMO Energies		394
	Barriers to Internal Rotation		0
Geometries	Cartesians	x	404
	Internal Coordinates	x	0	x
	Products of moments of inertia	x	395	x
	Rotational Constants	x	404	x
	Point Group		421
Vibrations	Vibrational Frequencies		379
	Vibrational Intensities		375
	Zero-point energies		379
	Vibrational scaling factors
	Anharmonic frequencies and constants
	Raman frequencies and intensities		0
Electronic States	Electronic states	x	0
Electrostatics	Atom charges		276
	Dipole	x	361	x
	Quadrupole		309
	Polarizability	x	328	x
Other results	Spin		0
	Number of basis functions		28
	Conformations		2	x