Abstract
Abstract The organogallium compound [{Me2NCH2Ga(Cl,I)2}2] (1) and the organoindium compounds [Me2NCH2In(Cl,Br)2]2 (2) and [Me2NCH2InCl2]2 (3) have been prepared by the reactions of the low valent metal halides “GaI”, InBr and InCl with the iminium salt [Me2N=CH2]Cl. Compounds 1 and 2 are heterohalogen mixtures. These compounds were characterised by NMR spectroscopy and mass spectrometry, 1 furthermore by single crystal X-ray diffraction and 3 by elemental analysis. During the work-up procedure, minor amounts of hydrogen halide adducts of compounds 2 and 3 were isolated as single crystals, which contain a further equivalent of THF. These zwitter-ionic species Me2N(H)CH2In(Br,Cl)3·THF (2·H(Cl,Br)·THF) and Me2N(H)CH2InCl3 ·THF (3 ·HCl ·THF) were identified by single crystal X-ray diffraction. Methylation reactions of compounds 1 and 2 with MeLi gave two well-established compounds [{Me2NCH2GaMe2}2] and [{Me2NCH2InMe2}2], which were obtained previously by different preparation procedures.
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