Copper(II) acetylacetonate

Copper(II) acetylacetonate is the coordination compound with the formula Cu(O₂C₅H₇)₂. It is the homoleptic acetylacetonate complex of copper(II). It is insoluble within water and exists as a bright blue solid. According to X-ray crystallography, the Cu center is square planar.^[1] Single crystals of this compound exhibit the unusual property of being highly flexible, allowing the formation of knots. The flexibility is attributed to the nature of the intermolecular forces.^[2]

Copper(II) acetylacetonate

Names
Other names Bi(2,4-pentanedionato)copper; Cupric acetylacetonate
Identifiers
CAS Number	13395-16-9 Y
3D model (JSmol)	Interactive image
ChemSpider	17949957
ECHA InfoCard	100.033.147
EC Number	236-477-9
PubChem CID	139053110
UNII	69QQY9TJ8M Y
CompTox Dashboard (EPA)	DTXSID50904281
InChI InChI=1S/2C5H8O2.Cu/c2*1-4(6)3-5(2)7;/h2*3,6H,1-2H3; Key: ZKXWKVVCCTZOLD-UHFFFAOYSA-N
SMILES CC(=CC(=O)C)O.CC(=CC(=O)C)O.[Cu]
Properties
Chemical formula	C10H14CuO4
Molar mass	261.764 g·mol−1
Appearance	blue solid
Density	0.721 g/cm3
Melting point	279–283 °C (534–541 °F; 552–556 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references