Fragmentation of the intramolecularly coordinated alane Me2NCH2CD2CH2AlBr2:: A matrix-isolation study

被引:0
|
作者
Müller, J [1 ]
Wittig, B [1 ]
机构
[1] Ruhr Univ Bochum, Lehrstuhl Anorgan Chem 2, D-44780 Bochum, Germany
来源
FUNDAMENTAL GAS-PHASE AND SURFACE CHEMISTRY OF VAPOR-PHASE DEPOSITION II AND PROCESS CONTROL, DIAGNOSTICS, AND MODELING IN SEMICONDUCTOR MANFACTURING IV | 2001年 / 2001卷 / 13期
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中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The selectively deuterated aluminum bromide Me2NCH2CD2CH2AlBr2 was prepared from AlBr3 and Li[CH2CD2CH2NMe2] and analyzed by NMR, mass spectrometry, and elemental analysis. High-vacuum thermolyses of this intramolecularly coordinated precursor were investigated with matrix-isolation techniques. Among other products, the known hydride HAlBr2 was identified by IR spectroscopy in argon matrices. In none of the thermolysis experiments the deuteride DAlBr2 was found. The predicted vibrational frequencies of DAlBr2 are discussed. These findings reveal that a beta-hydrogen elimination can be excluded as a fragmentation path. They are interpreted as resulting from a homolysis of the Al-C bond of the starting compound.
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页码:124 / 128
页数:5
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