atsetüülatsotsetaat

Atsetüülatsotsetaat, also known as acetylacetonate or acac, is a coordination compound with the chemical formula [CH3COCHCOCH3]−. It is an anionic ligand that readily forms complexes with a wide range of metal ions. The acetylacetonate ligand is bidentate, meaning it can bind to a metal ion through two donor atoms, in this case, two oxygen atoms. This chelation effect leads to the formation of stable metal complexes.

The synthesis of acetylacetonate is typically achieved by reacting acetylacetone with a strong base, such as sodium hydroxide, to deprotonate the acidic methylene group between the two carbonyl groups. This deprotonation generates the acetylacetonate anion. This anion can then react with various metal salts to form metal acetylacetonates. These complexes are often soluble in organic solvents, which makes them useful in various applications.

Metal acetylacetonates find use in a diverse array of fields. They serve as catalysts in organic synthesis, including polymerization reactions and oxidation processes. In materials science, they are employed as precursors for the deposition of metal oxide films via techniques like chemical vapor deposition (CVD). Some metal acetylacetonates also exhibit magnetic or optical properties, leading to their investigation for use in electronic devices or as pigments. The stability and versatility of the acetylacetonate ligand make it a valuable component in coordination chemistry and its related applications.