Tris(acetylacetonato)cobalt(III)

Tris(acetylacetonato)cobalt(III) is the coordination complex with the formula Co(C₅H₇O₂)₃. It is a green, diamagnetic solid that is soluble in organic solvents, but not in water. It is prepared by the reaction of cobalt(II) carbonate and acetylacetone in the presence of hydrogen peroxide. The solid is isomorphous with tris(acetylacetonato)iron(III), tris(acetylacetonato)manganese(III), and tris(acetylacetonato)aluminium.[1] These complexes are chiral and often can be resolved into the individual enantiomers. Owing to its solubility in organic solvents, ttris(acetylacetonato)cobalt(III) is used to produce homogeneous catalysts by reduction.[2]

Tris(acetylacetonato)cobalt(III)

Names
Other names Cobalt(III) acetylacetonate
Identifiers
CAS Number	21679-46-9
3D model (JSmol)	Interactive image
ChemSpider	4589065
ECHA InfoCard	100.040.464
EC Number	244-527-6
PubChem CID	24884269
CompTox Dashboard (EPA)	DTXSID30893462
InChI InChI=1S/3C5H8O2.Co/c3*1-4(6)3-5(2)7;/h3*3,6H,1-2H3;/q;;;+3/p-3/b3*4-3+; Key: RHCQEPWEBDOALW-MUCWUPSWSA-K
SMILES C/C(=C\C(=O)C)/[O-].C/C(=C\C(=O)C)/[O-].C/C(=C\C(=O)C)/[O-].[Co+3]
Properties
Chemical formula	C15H21CoO6
Molar mass	356.260 g·mol^−1
Appearance	green solid
Density	1.41 g/cm^3
Melting point	213 °C (415 °F; 486 K)
Hazards
GHS pictograms
GHS Signal word	Danger
GHS hazard statements	H302, H317, H334
GHS precautionary statements	P261, P264, P270, P272, P280, P285, P301+312, P302+352, P304+341, P321, P330, P333+313, P342+311, P363, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

References

1. Bryant, Burl E.; Fernelius, W. Conard (1957). "Cobalt(III) Acetylacetonate". Inorganic Syntheses. 5. pp. 188–189. doi:10.1002/9780470132364.ch53. ISBN 9780470132364.
2. Mayo, Peter D.; Tam, William (2002). "Tris(acetoacetonyl)cobalt". Encyclopedia of Reagents for Organic Synthesis. doi:10.1002/047084289X.rn00084. ISBN 0471936235.