Affiliation:
1. Department of Chemistry, University of Virginia, Post Office Box 400319, Charlottesville, VA 22904–4319, USA.
Abstract
Although many volatile binary boron hydride compounds are known, binary aluminum hydride chemistry is limited to the polymeric (AlH
3
)
n
solid. The reaction of laser-ablated aluminum atoms and pure H
2
during codeposition at 3.5 kelvin, followed by ultraviolet irradiation and annealing to 6.5 kelvin, allows dimerization of the intermediate AlH
3
photolysis product to form Al
2
H
6
. The Al
2
H
6
molecule is identified by seven new infrared absorptions that are accurately predicted by quantum chemical calculations for dibridged Al
2
H
6
, a molecule that is isostructural with diborane.
Publisher
American Association for the Advancement of Science (AAAS)
Reference48 articles.
1. A. Stock Hydrides of Boron and Silicon (Cornell Univ. Press Ithaca NY 1933).
2. W. N. Lipscomb Boron Hydrides (Benjamin New York 1963).
3. F. A. Cotton G. Wilkinson C. A. Murillo M. Bochmann Advanced Inorganic Chemistry (Wiley New York ed. 6 1999).
4. Crystal structure of aluminum hydride
5. Preparation and properties of aluminum hydride
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