منابع مشابه
Aluminum Hydride Chemistry
Anion photoelectron spectroscopy and density functional theory were employed to study aluminum hydride clusters, AlnHm (4 e n e 8, 0 e m e 10). Photoelectron spectra revealed that Al4H4, Al4H6, and a family of species with general formula AlnHn+2 (5 e n e 8) have small adiabatic electron affinities and large HOMO-LUMO gaps (ranging from 0.5 to 1.9 eV) relative to those of their stoichiometric n...
متن کاملRegeneration of lithium aluminum hydride.
Lithium aluminum hydride (LiAlH(4)) is a promising compound for hydrogen storage, with a high gravimetric and volumetric hydrogen density and a low decomposition temperature. Similar to other metastable hydrides, LiAlH(4) does not form by direct hydrogenation at reasonable hydrogen pressures; therefore, there is considerable interest in developing new routes to regenerate the material from the ...
متن کاملReduction of Halomethanes with Lithium Aluminum Hydride
A study has been made of t he reactions of lithium aluminum hydride with methyl bromide, methylene chloride, meth ylene bromide, methylene iodide, chloroform, bromoform, and carbon t etrachloride. Except for hydrogen and unreacted h alida, essentia lly pure methane was formed in each case. The amount of hydrogen evolved increased with the n umber of halogen atoms in the molecule, reaching a max...
متن کاملPhotoelectron spectroscopic study of carbon aluminum hydride cluster anions.
Numerous previously unknown carbon aluminum hydride cluster anions were generated in the gas phase, identified by time-of-flight mass spectrometry and characterized by anion photoelectron spectroscopy, revealing their electronic structure. Density functional theory calculations on the CAl5-9H- and CAl5-7H2- found that several of them possess unusually high carbon atom coordination numbers. Thes...
متن کاملKinetics of Thermal Decomposition Of Aluminum Hydride In Argon
Thermogravimetric analysis was utilized to investigate the decomposition kinetics of alane (AlH3) in argon atmosphere and to shed light on the mechanism of alane decomposition. Two kinetic models have been successfully developed and used to propose a mechanism for the complete decomposition of alane and to predict its shelf-life during storage. Under non-isothermal heating, alane decomposes in ...
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ژورنال
عنوان ژورنال: Synlett
سال: 2005
ISSN: 0936-5214,1437-2096
DOI: 10.1055/s-2005-872265