Zinc acetylacetonate is an acetylacetonate complex of zinc, with the chemical formula of . The compound is in fact a trimer, Zn3(acac)6, in which each Zn ion is coordinated by five oxygen atoms in a distorted trigonal bipyramidal structure. Hydrated zinc acetylacetonate can be obtained by combining zinc sulfate, acetylacetone, and sodium hydroxide.
Structure
Through sublimation, both monomeric and trimeric forms can be obtained. The monomer is monoclinic and have the space group C2/c (No. 15). Anhydrous zinc acetylacetonate also exists in the solid state as a trimer.
Reactions The anhydrous zinc acetylacetonate is Lewis acidic, giving 5- and 6-coordinate adducts of the formula , respectively. The structures of its monohydrate and dihydrate are also known.
Thermal decomposition of zinc acetylacetonate gives zinc oxide, and is also a catalyst for organic synthesis.
References