Acetylacetonato complexes

DETERMINATION OF ALUMINIUM BY GAS CHROMATOGRAPHIC ANALYSIS OF ITS TRIS (ACETYLACETONATO) COMPLEX... 

Acetylacetonato complexes of various composition have been reported as the products of reactions between acetylacetone (Hacac) and rhenium nitrosyl precursors. Compositions of [Re(NCpCl(acac)2(H20)] and [Re(N0)(acac)3(Hacac)(H20)2] have been assigned to the prod-... 

Scheme 3.6 Catalytic cycle for the conjugate addition catalyzed by a rhodium-acetylacetonato complex [16].

Oxalato, Malonato and Acetylacetonato Complexes (see also Table 49)... 

Acetylacetone usually forms transition metal complexes by coordination through bidentate oxygens. Since platinum forms unusually strong bonds to carbon, acetylacetonato complexes of platinum(II) are frequently C-bonded. When Pt(acac)2 is treated with 1 mole of pyridine, a bidentate oxygen-bonded acetylacetonate ligand is converted to a y-carbon-bonded ligand. 

When a further mole of pyridine is added the bis y-carbon-bonded acetylacetonato complex (43) is formed (equation 178).503... 

The methyl and ring proton resonances of cationic acetylacetonato complexes of silicon are shifted downfield relative to the resonance of neutral silicon diketonates, whereas the resonances of the anionic complexes are shifted up-... 

Stable monomeric complexes can also be obtained without the presence of bulky ligands. Intramolecular donation of electrons into the empty valency orbital of Ge from nitrogen renders them stability, as seen in (11), which is stable to dry oxygen, but readily hydrolyzes. The same phenomenon occurs in the acetylacetonato complex of Ge(II) and Ge(acac)I, in which germanium is three-coordinate with a stereochemically active lone pair. 

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