return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Experimental > One molecule all properties

Experimental data for AlH3- (aluminum trihydride anion)

22 02 02 11 45
Other names
α-Aluminum trihydride; Alane; Aluminum hydride; Aluminum hydride (AlH3); Aluminum trihydride; alpha-Aluminum trihydride;
INChI INChIKey SMILES IUPAC name
InChI=1S/Al.3H AZDRQVAHHNSJOQ-UHFFFAOYSA-N [AlH3] Aluminum trihydride
InChI=1/Al.3H/rAlH3/h1H3 AZDRQVAHHNSJOQ-FSBNLZEDNA-N [AlH3] Aluminum trihydride
State Conformation
1A1' D3H
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
Hfg(298.15K) enthalpy of formation 128.89 20.00 kJ mol-1 Gurvich estimate from theory! No experimental data!
Hfg(0K) enthalpy of formation 135.73 20.00 kJ mol-1 Gurvich estimate from theory! No experimental data!
Entropy (298.15K) entropy 206.57   J K-1 mol-1 Gurvich
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 10.41   kJ mol-1 Gurvich
Heat Capacity (298.15K) heat capacity 40.06   J K-1 mol-1 Gurvich
Information can also be found for this species in the NIST Chemistry Webbook
Vibrational levels (cm-1) vibrations
Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference
1 A1' 1900   1993Kur/Ebe:1302      
2 A2" 698   1993Kur/Ebe:1302      
3 E' 1883   1993Kur/Ebe:1302      
4 E' 783   1993Kur/Ebe:1302      

vibrational zero-point energy: 3965.1 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for AlH3- (aluminum trihydride anion).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
       

Calculated rotational constants for AlH3- (aluminum trihydride anion).
Product of moments of inertia moments of inertia
amu3Å6   0gm3 cm6
Geometric Data
picture of aluminum trihydride anion

Point Group D3h


Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees
Description Value unc. Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4

Cartesians
Atom x (Å) y (Å) z (Å)

Atom - Atom Distances bond lengths
Distances in Å
 

Calculated geometries for AlH3- (aluminum trihydride anion).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
H-Al 3

Connectivity
Atom 1 Atom 2
Al1 H2
Al1 H3
Al1 H4
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A1'
Dipole, Quadrupole and Polarizability
Electric dipole moment dipole
State Config State description Conf description Exp. min. Dipole (Debye) Reference comment Point Group Components
x y z total dipole quadrupole
1 1 1A1' D3h True       0.000 NSRDS-NBS10   D3h 0 1
Experimental dipole measurement abbreviations: MW microwave; DT Dielectric with Temperature variation; DR Indirect (usually an upper limit); MB Molecular beam
Calculated electric dipole moments for AlH3- (aluminum trihydride anion).
Electric quadrupole moment quadrupole
State Config State description Conf description Exp. min. Quadrupole (D Å) Reference comment Point Group Components
xx yy zz dipole quadrupole
1 1 1A1' D3h True       D3h 0 1

Calculated electric quadrupole moments for AlH3- (aluminum trihydride anion).

References
By selecting the following links, you may be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to [email protected].
squib reference DOI
1993Kur/Ebe:1302 FA Kurth, RA Eberlein, H Schnockel, AJ Downs, CR Pulham "Molecular Aluminum Trihydride, AlH3: Generation in a Solid Noble Gas Matrix and Characterisation by its Infrared Spectrum and Ab initio calculations" J. Chem. Soc. Chem. Commun. 1302, 1993 10.1039/c39930001302
Gurvich Gurvich, L.V.; Veyts, I. V.; Alcock, C. B., Thermodynamic Properties of Individual Substances, Fouth Edition, Hemisphere Pub. Co., New York, 1989  
NSRDS-NBS10 R. D. Nelson Jr., D. R. Lide, A. A. Maryott "Selected Values of electric dipole moments for molecules in the gas phase" NSRDS-NBS10, 1967 10.6028/NBS.NSRDS.10

Got a better number? Please email us at [email protected]


Browse
PreviousNext