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

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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Experimental data for AlH2+ (aluminum dihydride cation)

Experimental data for AlH₂⁺ (aluminum dihydride cation)