The reactions of metal acetylacetonates with acids

摘要: The reactions of a number metal acetylacetonates with trifluoroacetic acid have been investigated using nmr. initial reaction involves protonation on the carbon atom ligand. In case aluminum compound in coordinating solvents there is further to give cationic complexes. results are used reinterpret kinetics ligand exchange for this compound. It argued that, contrary previous suggestions, slow step breaking first oxygen bond form dangling intermediate. A consequence conclusion that intramolecular rearrangements Al(III) β diketonates must proceed by twisting rather than rupture mechanisms.