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organic compounds
In aprotic solvents, dibromoethylsilane (HSiEtBr2) and 3,4-dimethylpyridine form a 1:2 crystalline complex which is stable at room temperature. X-ray structure analysis reveals an [HSiEtBr(3,4-dimethylpyridine)2]+ (C16H24BrN2Si+.Br-) complex, with one Br- ion in the outer coordination sphere. The ligands bound directly to the silicon centre exhibit almost trigonal-bipyramidal geometry. The geometry of the title compound compares well with that of bromo(hydrido)methylbis(4-methylpyridine-N)silicon bromide.
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