Aluminium(III) compounds Organoaluminium chemistry

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structure of trimethylaluminium, compound features five-coordinate carbon.


ligand exchange in trialkylaluminium compounds

the trialkylaluminium dimers participate in dynamic equilibria, resulting in interchange of bridging , terminal ligands ligand exchange between dimers. in noncoordinating solvents, al-me exchange fast, confirmed proton nmr spectroscopy. example, @ −25 °c h nmr spectrum of me6al2 comprises 2 signals in 1:2 ratio, expected solid state structure. @ 20 °c, 1 signal observed because exchange of terminal , bridging methyl groups fast resolved nmr. high lewis acidity of monomeric species related size of al(iii) center , tendency achieve octet configuration.








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