More Information on the Cr(acac)3 Molecule
Many Tris(acetonylacetonate)metal complexes have been used in this Web site to demonstrate aspects of structure and symmetry.
The tris(acetonylacetonate)chromium(III) molecule (showing all the multiple bonds) is shown on your left.
When deprotanated, each ligand carries a negative one charge and the 5 membered O-C-C-C-O ring is planar. The ligand is called acetonylacetonate and is abbreviated "acac".
A Reference for the structure of each M(acac)3 used in this site can be found here.