CCCBDB listing of experimental data page 2

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Property	Value	Uncertainty	units	Reference	Comment
Hfg(298.15K)	276.77	20.00	kJ mol^-1	Gurvich	limited experimental data. Theory used by Gurvich.
Hfg(0K)	279.69	20.00	kJ mol^-1	Gurvich	limited experimental data. Theory used by Gurvich.
Entropy (298.15K)	213.31		J K^-1 mol^-1	Gurvich	limited experimental data. Theory used by Gurvich.
Integrated Heat Capacity (0 to 298.15K)	10.09		kJ mol^-1	Gurvich	limited experimental data. Theory used by Gurvich.
Heat Capacity (298.15K)	35.77		J K^-1 mol^-1	Gurvich	limited experimental data. Theory used by Gurvich.

Mode Number	Symmetry	Frequency			Intensity			Comment	Description
Mode Number	Symmetry	Fundamental(cm^-1)	Harmonic(cm^-1)	Reference	(km mol^-1)	unc.	Reference	Comment	Description
1	A₁	1770		VEEL5
2	A₁	760		VEEL5
3	B₂	1807		VEEL5

Description	Value	unc.	Connectivity				Reference	Comment
Description	Value	unc.	Atom 1	Atom 2	Atom 3	Atom 4	Reference	Comment
rAlH	1.590		1	2			1966Herzberg
aHAlH	119		2	1	3		1966Herzberg

Atom	y (Å)	z (Å)
Al1	0.0000	0.0000
H2	1.3700	0.8070
H3	-1.3700	0.8070

	Al1	H2	H3
Al1		1.5900	1.5900
H2	1.5900		2.7400
H3	1.5900	2.7400

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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State	Config	State description	Conf description	Exp. min.	Dipole (Debye)				Reference	comment	Point Group	Components
State	Config	State description	Conf description	Exp. min.	x	y	z	total	Reference	comment	Point Group	dipole	quadrupole
1	1	²A₁	C_2v	True							C_2v	1	2

squib	reference	DOI
1966Herzberg	Herzberg, G., Electronic spectra and electronic structure of polyatomic molecules,Van Nostrand,New York, 1966
Gurvich	Gurvich, L.V.; Veyts, I. V.; Alcock, C. B., Thermodynamic Properties of Individual Substances, Fouth Edition, Hemisphere Pub. Co., New York, 1989
VEEL5	M.E. Jacox, Vibrational and Electronic Energy Levels of Polyatomic Transient Molecules, J. Phys. Chem.Ref. Data, Monograph 3 (1994) (updated data in NIST Chemistry Webbook - http://webbook.nist.gov/chemistry/

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Experimental data for AlH2 (aluminum dihydride)

Experimental data for AlH₂ (aluminum dihydride)