Misplaced Pages

Aluminium monohydroxide

Names
IUPAC name Hydroxyaluminium(I)
Identifiers
CAS Number	20768-67-6
3D model (JSmol)	Interactive image
InChI InChI=1S/Al.H2O/h;1H2/q+1;/p-1Key: MPJGFDUNKYERDK-UHFFFAOYSA-M
SMILES O
Properties
Chemical formula	AlOH
Molar mass	43.989 g·mol
Related compounds
Other anions	AlSH
Other cations	GaOH, InOH, TlOH
Related compounds	Al(OH)2, Al(OH)3
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references

Hydroxyaluminium(I), also known as Aluminium(I) hydroxide, is an inorganic chemical with molecular formula AlOH. It consists of aluminium in the +1 oxidation state paired with a single hydroxide. It has been detected as a molecular substance in the envelope of an oxygen-rich red supergiant star, a place where substances containing metals or hydroxides are thought to be rare.

Production

In the laboratory AlOH can be made by heating aluminium, so that it vapourises into low pressure hydrogen peroxide vapour. Another method is to condense a mixture of aluminium vapour, hydrogen and oxygen with argon into a solid at 10K. Along with AlOH, there are also Al(OH)₂, Al(OH)₃, HAl(OH)₂, cyc-AlO₂ and AlOAl molecules formed.

Properties

The bond lengths are, Al-O 1.682 Å, and for O-H 0.878 Å. The rotational constants are B₀=15,740.2476 MHz and D₀=0.02481 MHz.

References

1. Fukushima, Masaru; Gerry, Michael C.L. (July 2010). "Fourier transform microwave spectroscopy of aluminum hydrosulfide, AlSH". Journal of Molecular Spectroscopy. 262 (1): 11–15. Bibcode:2010JMoSp.262...11F. doi:10.1016/j.jms.2010.04.005.
2. Tenenbaum, E. D.; Ziurys, L. M. (2010). "Exotic Metal Molecules in Oxygen-rich Envelopes: Detection of AlOH (XΣ) in VY Canis Majoris". Astrophysical Journal. 712 (1): L93 – L97. Bibcode:2010ApJ...712L..93T. doi:10.1088/2041-8205/712/1/L93.
3. ^ Apponi, A. J., Barclay, W. L., Jr., & Ziurys, L. M. (1993). "The millimeter-wave spectrum of AlOH". Astrophysical Journal Letters. 414 (2): L129 – L132. Bibcode:1993ApJ...414L.129A. doi:10.1086/187013.{{cite journal}}: CS1 maint: multiple names: authors list (link)
4. Wang, Xuefeng; Andrews, Lester (March 2007). "Infrared Spectroscopic Observation of the Group 13 Metal Hydroxides, M(OH)_1,2,3 (M = Al, Ga, In, and Tl) and HAl(OH)₂". The Journal of Physical Chemistry A. 111 (10): 1860–1868. Bibcode:2007JPCA..111.1860W. doi:10.1021/jp066390e. PMID 17388275.

This inorganic compound–related article is a stub. You can help Misplaced Pages by expanding it.

• v
• t
• e

v t e Molecules detected in outer space
Molecules	Diatomic Aluminium monochloride Aluminium monofluoride Aluminium(II) oxide Argonium Carbon cation Carbon monophosphide Carbon monosulfide Carbon monoxide Cyano radical Diatomic carbon Fluoromethylidynium Helium hydride ion Hydrogen chloride Hydrogen fluoride Hydrogen (molecular) Hydroxyl radical Iron(II) oxide Magnesium monohydride Methylidyne radical Nitric oxide Nitrogen (molecular) Imidogen Sulfur mononitride Oxygen (molecular) Phosphorus monoxide Phosphorus mononitride Potassium chloride Silicon carbide Silicon monoxide Silicon monosulfide Sodium chloride Sodium iodide Sulfanyl Sulfur monoxide Titanium(II) oxide Triatomic Aluminium(I) hydroxide Aluminium isocyanide Amino radical Carbon dioxide Carbonyl sulfide CCP radical Chloronium Diazenylium Dicarbon monoxide Disilicon carbide Ethynyl radical Formyl radical Hydrogen cyanide (HCN) Hydrogen isocyanide (HNC) Hydrogen sulfide Hydroperoxyl Iron cyanide Isoformyl Magnesium cyanide Magnesium isocyanide Methylene N2H Nitrous oxide Nitroxyl Ozone Methylidynephosphane Potassium cyanide Trihydrogen cation Sodium cyanide Sodium hydroxide Silicon carbonitride c-Silicon dicarbide SiNC Sulfur dioxide Thioformyl Thioxoethenylidene Titanium dioxide Tricarbon Water Four atoms Acetylene Ammonia Isocyanic acid Cyanoethynyl Formaldehyde Fulminic acid HCCN Hydrogen peroxide Hydromagnesium isocyanide Isocyanic acid Isothiocyanic acid Ketenyl Methylene amidogen Methyl cation Methyl radical Propynylidyne Protonated carbon dioxide Protonated hydrogen cyanide Silicon tricarbide Thioformaldehyde Tricarbon monoxide Tricarbon monosulfide Thiocyanic acid Five atoms Ammonium ion Butadiynyl Carbodiimide Cyanamide Cyanoacetylene Cyanoformaldehyde Cyanomethyl Cyclopropenylidene Formic acid Isocyanoacetylene Ketene Methane Methoxy radical Methylenimine Propadienylidene Protonated formaldehyde Silane Silicon-carbide cluster Six atoms Acetonitrile Cyanobutadiynyl radical E-Cyanomethanimine Cyclopropenone Diacetylene Ethylene Formamide HC4N Ketenimine Methanethiol Methanol Methyl isocyanide Pentynylidyne Propynal Protonated cyanoacetylene Seven atoms Acetaldehyde Acrylonitrile Vinyl cyanide Cyanodiacetylene Ethylene oxide Glycolonitrile Hexatriynyl radical Propyne Methylamine Methyl isocyanate Vinyl alcohol Eight atoms Acetic acid Aminoacetonitrile Cyanoallene Ethanimine Glycolaldehyde Hexapentaenylidene Methylcyanoacetylene Methyl formate Acrolein Nine atoms Acetamide Cyanohexatriyne Dimethyl ether Ethanol Methyldiacetylene Octatetraynyl radical Propene Ethanethiol Propionitrile N-Methylformamide Ten atoms or more Acetone Benzene Benzonitrile Buckminsterfullerene (C60, C60, fullerene, buckyball) C70 fullerene Cyanodecapentayne Ethylene glycol Ethyl formate Methyl acetate Methyl-cyano-diacetylene Methyltriacetylene Propionaldehyde Butyronitrile Pyrimidine Heptatrienyl radical
Deuterated molecules	Ammonia Ammonium ion Formaldehyde Formyl radical Heavy water Hydrogen cyanide Hydrogen deuteride Hydrogen isocyanide Propyne N2D Trihydrogen cation
Unconfirmed	Anthracene Dihydroxyacetone Methoxyethane Glycine Graphene Hemolithin H2NCO Linear C5 Naphthalene cation Phosphine Pyrene Silylidyne
Related	Abiogenesis Astrobiology Astrochemistry Atomic and molecular astrophysics Chemical formula Circumstellar dust Circumstellar envelope Cosmic dust Cosmic ray Cosmochemistry Diffuse interstellar band Earliest known life forms Extraterrestrial life Extraterrestrial liquid water Forbidden mechanism Homochirality Intergalactic dust Interplanetary medium Interstellar medium Photodissociation region Iron–sulfur world theory Kerogen Molecules in stars Nexus for Exoplanet System Science Organic compound Outer space PAH world hypothesis Pseudo-panspermia Polycyclic aromatic hydrocarbon (PAH) RNA world hypothesis Spectroscopy Tholin
Category:Astrochemistry Outer space portal Astronomy portal Chemistry portal

• Inorganic compound stubs
• Astrochemistry
• Aluminium(I) compounds
• Hydroxides