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- W2034881412 abstract "Dimethylaluminum and gallium alkoxides of the type Me2MOR* were synthesized (M = Al; R = CH(CH3)CH2NMe2 (1), CH(CH3)CH2NH2 (2), M = Ga; R = CH(CH3)CH2NMe2 (3)) by reaction of Me3M (M = Al; Ga) with the corresponding amino alcohols. The resulting compounds 1–3 have been characterised by 1H, 13C and 27Al NMR spectroscopy. The crystal structures of 1–3 were determined by X-ray diffraction. Compounds 1–3 were proved to be dimeric in solid state containing five-membered heterocyclic rings. 3 crystallises in the monoclinic space group P21/n with Z = 4, a = 7.898(2), b = 15.512(9), c = 8.453(2) Å, and β = 103.70(2)°, V = 1000.1(9) Å3. The Ga-N distance in 3 runs to 2.525(2) Å which is significantly longer than the Al-N distances in the investigated Al compounds 1 and 2 (2.246(2) and 2.172(3) Å). Dimethylaluminium- und Dimethylgalliumalkoxide der allgemeinen Formel Me2MOR* wurden durch Umsetzung von Me3M (M = Al; Ga) mit den entsprechenden Aminoalkoholen synthetisiert (M = Al; R = CH(CH3)CH2NMe2 (1), CH(CH3)CH2NH2 (2), M = Ga; R = CH(CH3)CH2NMe2 (3)) und mittels ihrer 1H-, 13C- und 27Al-NMR-Spektren charakterisiert. Die Kristallstrukturen von 1–3 wurden bestimmt. Die Verbindungen 1–3 liegen im festen Zustand als verbrückte Dimere vor, die 5gliedrige Heterocyclen enthalten. 3 kristallisiert in der monoklinen Raumgruppe P21/n mit Z = 4, a = 7.898(2), b = 15.512(9), c = 8.453(2) Å und β = 103.70(2)°, V = 1000.1(9) Å3. Der Ga-N Abstand (2.52 Å) in 3 ist signifikant länger als die Al-N-Bindungslängen in 1 und 2 (2.246(2) und 2.172(3) Å)." @default.
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- W2034881412 date "1997-08-01" @default.
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- W2034881412 title "Dimethylaluminum and gallium amino alkoxides" @default.
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- W2034881412 doi "https://doi.org/10.1016/s0022-328x(97)00129-0" @default.
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