Base-stabilized monomeric stibinoalane dmap-Al(Et2)Sb(tBu)2

The six-membered heterocycle [Me2AlSb(t-Bu)2]3 was reacted with the strong Lewis-base 4-dimethylaminopyridine (dmap), yielding the first completely alkyl-substituted monomeric complex dmap–Al(Me2)Sb(t-Bu)21. 1 was characterized by NMR spectroscopy and single crystal X-ray diffraction. 1 is monoclinic, space group P21/n with a = 9.9004(2) Å, b = 16.8166(3) Å, c = 13.8400(3) Å, β = 100.746(1)° and Z = 4.


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