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Experimental data for AlO (Aluminum monoxide)

22 02 02 11 45
Other names
Aluminum oxide;
INChI INChIKey SMILES IUPAC name
InChI=1S/Al.O AIRCTMFFNKZQPN-UHFFFAOYSA-N [Al]=O
State Conformation
2Σ C*V
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 66.90 8.00 kJ mol-1 JANAF
Hfg(0K) enthalpy of formation 66.99 8.00 kJ mol-1 JANAF
Entropy (298.15K) entropy 218.38 0.08 J K-1 mol-1 JANAF
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 8.79   kJ mol-1 JANAF
Heat Capacity (298.15K) heat capacity 30.82   J K-1 mol-1 webbook
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 Σ 965 979 2007Iri:389      

Detailed diatomic data
ωe ωexe ωeye Be αe ZPE reference
979.4852 7.0121 -0.00206 0.6413856 0.0057796 487.9756 2007Iri:389

vibrational zero-point energy: 482.7 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for AlO (Aluminum monoxide).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
  0.64139   2007Iri:389

Calculated rotational constants for AlO (Aluminum monoxide).
Product of moments of inertia moments of inertia
26.28314amu Å2   4.364487E-39gm cm2
Geometric Data
picture of Aluminum monoxide

Point Group C∞v


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
rAlO 1.618   1 2 1979HUB/HER re

Cartesians
Atom x (Å) y (Å) z (Å)
Al1 0.0000 0.0000 0.0000
O2 0.0000 0.0000 1.6179

Atom - Atom Distances bond lengths
Distances in Å
  Al1 O2
Al1   1.6179
O2 1.6179  

Calculated geometries for AlO (Aluminum monoxide).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
O-Al 1

Connectivity
Atom 1 Atom 2
Al1 O2
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 2 1979HUB/HER 2Σ
5406.7 2 Gurvich

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
9.460 0.060     webbook

Electron Affinity (eV)
Electron Affinity unc. reference
2.600 0.010 2002Rie/Tsc:231
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 2Σ C∞v True           C∞v 1 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 AlO (Aluminum monoxide).
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 2Σ C∞v True       C∞v 1 1

Calculated electric quadrupole moments for AlO (Aluminum monoxide).

References
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squib reference DOI
1979HUB/HER Huber, K.P.; Herzberg, G., Molecular Spectra and Molecular Structure. IV. Constants of Diatomic Molecules, Van Nostrand Reinhold Co., 1979 10.1007/978-1-4757-0961-2
2002Rie/Tsc:231 JC Rienstra-Kiracofe, GS Tschumper, HF Schaefer III, S Nandi, GB Ellison "Atomic and Molecular Electron Affinities: Photoelectron Experiments and Theoretical Computations" Chemical Reviews 2002, 102, 231-282 10.1021/cr990044u
2007Iri:389 KK Irikura "Experimental Vibrational Zero-Point Energies: Diatomic Molecules" J. Phys. Chem. Ref. Data 36(2), 389, 2007 10.1063/1.2436891
Gurvich Gurvich, L.V.; Veyts, I. V.; Alcock, C. B., Thermodynamic Properties of Individual Substances, Fouth Edition, Hemisphere Pub. Co., New York, 1989  
JANAF Chase, M.W., Jr.; Davies, C.A.; Downey, J.R., Jr.; Frurip, D.J.; McDonald, R.A.; Syverud, A.N., JANAF Thermochemical Tables (Third Edition), J. Phys. Chem. Ref. Data,Suppl. 1, 1985, 14, 1.  
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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