Matrix Reactivity of AlF and AlCl in the Presence of HCl and HBr: Generation and Characterization of the New Al(III) Hydrides HAlFCl, HAlFBr, and HAlClBr and the Monomeric Mixed Al(III) Halides AlX
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- 作者：Hans-Jö ; rg Himmel ; Jan Bahlo ; Michael Haussmann ; Fabian Kurth ; Gregor Stö ; sser ; and Hansgeorg Schnö ; ckel
- 刊名：Inorganic Chemistry
- 出版年：2002
- 出版时间：September 23, 2002
- 年：2002
- 卷：41
- 期：19
- 页码：4952 - 4960
- 全文大小：111K
- 年卷期：v.41,no.19(September 23, 2002)
- ISSN：1520-510X
文摘
The spontaneous and photolytically induced reactions of AlF and AlCl in the presence of HCl and HBr in solidargon matrices were followed and the products identified and characterized by means of IR spectroscopy. Quantummechanical calculations allow for a further evaluation of the properties of the reaction products. These are theadducts AlF·HCl, AlF·HBr, and AlCl·HBr, representing the products of spontaneous reactions, and the trivalentAl(III) hydrides HAlFCl, HAlFBr, and HAlClBr, which were formed upon photoactivation of these complexes. Allthree hydrides are planar molecules (Cs symmetry) with bond angles in agreement with the predictions of theVSEPR theory. In addition, the mixed halides AlFCl2, AlFBr2, and AlClBr2 were formed upon photolysis. The bisadductsAlF·(HCl)2 and AlF·(HBr)2 are likely to be the precursors to these species.