organoalumiiniumühend

Organoaluminium compounds are chemical compounds that contain a carbon-aluminium bond. They are a class of organometallic compounds that exhibit a wide range of chemical properties and applications. The bonding between carbon and aluminium is polar covalent, with aluminium being more electropositive than carbon. This polarity influences the reactivity of these compounds.

The simplest organoaluminium compounds are trialkylaluminium compounds, such as trimethylaluminium and triethylaluminium. These compounds are often liquids or solids and are known for their high reactivity, particularly with oxygen and water, making them pyrophoric. They are typically synthesized through reactions involving aluminium metal and alkyl halides.

Organoaluminium compounds are crucial in various industrial processes. They are widely used as catalysts in the polymerization of olefins, such as ethylene and propylene, to produce plastics like polyethylene and polypropylene. Ziegler-Natta catalysts, which are central to this process, often incorporate organoaluminium compounds. They also find use as reducing agents in organic synthesis and as precursors for the production of other organometallic compounds and materials. Their reactivity can be tuned by modifying the alkyl or aryl groups attached to the aluminium atom, allowing for tailored applications in catalysis and materials science.