Cobalt tris(acetylacetonate)

• Formula: C₁₅H₂₁CoO₆
• Molecular weight: 356.2568
• IUPAC Standard 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-; Copy

  
• IUPAC Standard InChIKey: RHCQEPWEBDOALW-LNTINUHCSA-K Copy
• CAS Registry Number: 21679-46-9
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: Cobalt acetylacetonate; Cobalt, tris(2,4-pentanedionato-O,O')-, (OC-6-11)-; Cobalt, tris(2,4-pentanedionato)-; Cobalt triacetoacetate; Cobalt triacetylacetonate; Cobalt(III) acetylacetonate; Cobalt(3+) acetylacetonate; Cobaltic acetylacetonate; Cobaltic trisacetylacetonate; Tris(acetylacetonato)cobalt; Tris(2,4-pentanedionato)cobalt; Cobalt(III) 2,4-pentanedionate; Tris(acetylacetonato)cobalt(III); Cobalt, tris(2,4-pentanedionato-O,O')-; Cobalt, tris(2,4-pentanedionato-κO,κO')-, (OC-6-11)-; Cobalt, tris(2,4-pentanedionato-κO2,κO4)-, (OC-6-11)-; NSC 43621; Tris(acetylacetone)cobalt; tris(pentane-2,4-dionato-O,O')cobalt
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• Information on this page:
  • Phase change data
  • Gas phase ion energetics data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Data at other public NIST sites:
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: William E. Acree, Jr., James S. Chickos

Enthalpy of sublimation

Enthalpy of fusion

Gas phase ion energetics data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess

Electron affinity determinations

Ionization energy determinations

IR Spectrum

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Coblentz Society, Inc.

Condensed Phase Spectrum

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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

Mass spectrum (electron ionization)

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Malkerova, Alikhanyan, et al., 1990
Malkerova, I.P.; Alikhanyan, A.S.; Sevast'yanov, V.G.; Grinberg, Ya.Kh.; Gorgoraki, V.I., Thermal behavior of 3d transition metal acetylacetonates, Zh. Neorg. Khim., 1990, 35, 2, 413. [all data]

Fahlman and Barron, 2000
Fahlman, Bradley D.; Barron, Andrew R., Substituent effects on the volatility of metal ?-diketonates, Adv. Mater. Opt. Electron., 2000, 10, 3-5, 223-232, https://doi.org/10.1002/1099-0712(200005/10)10:3/5<223::AID-AMO411>3.0.CO;2-M . [all data]

Murray and Hill, 1987
Murray, J.P.; Hill, J.O., DSC determination of the sublimation enthalpy of tris(2,4-pentanedionato)cobalt(III) and bis(2,4-pentanedionato) nickel(II) and -copper(II), Thermochimica Acta, 1987, 109, 2, 383-390, https://doi.org/10.1016/0040-6031(87)80034-5 . [all data]

Götze, Bloss, et al., 1970
Götze, H.-J.; Bloss, K.; Molketin, H., Dampfdruckbestimmung von Acetylacetonaten, Zeitschrift für Physikalische Chemie, 1970, 73, 4₆, 314-320, https://doi.org/10.1524/zpch.1970.73.4₆.314 . [all data]

Sabolovic, Mrak, et al., 2004
Sabolovic, Jasmina; Mrak, Zeljko; Kostrun, Sanja; Janekovic, August, Is the Enthalpy of Fusion of Tris(acetylacetonato)metal(III) Complexes Affected by Their Potential Energy in the Crystal State?, Inorg. Chem., 2004, 43, 26, 8479-8489, https://doi.org/10.1021/ic048900u . [all data]

Sharpe, Eyler, et al., 1990
Sharpe, P.; Eyler, J.R.; Richardson, D.E., Free Energies of Electron Attachment to Tris(acetylacetonate) and Tris(hexafluoroacetylacetonate) Transition-Metal Complexes in the Gas Phase: Experimental Results and Ligand Field Analysis, Inorg. Chem., 1990, 29, 15, 2779, https://doi.org/10.1021/ic00340a014 . [all data]

Westmore, Reimer, et al., 1981
Westmore, J.B.; Reimer, M.L.J.; Reichert, C., Ionization energies of metal chelates. Acetylacetonates, trifluoroacetylacetonates, and hexafluoroacetylacetonates of trivalent metals of the first transition series, Can. J. Chem., 1981, 59, 1797. [all data]

Bancroft, Reichert, et al., 1968
Bancroft, G.M.; Reichert, C.; Westmore, J.B., Mass spectral studies of metal chelates. II. Mass spectra and appearance potentials of acetylacetonates of trivalent metals of the first transition series, Inorg. Chem., 1968, 7, 870. [all data]

Brittain, Horozoglu, et al., 1979
Brittain, H.G.; Horozoglu, G.; Baker, A.D., The He(I) photoelectron spectra of some γ-substituted Co(III) acetylacetonate complexes, J. Electron Spectrosc. Relat. Phenom., 1979, 16, 107. [all data]

Evans, Hamnett, et al., 1972
Evans, S.; Hamnett, A.; Orchard, A.F.; Lloyd, D.R., Study of the metal-oxygen bond in simple tris-chelate complexes by He(I) photoelectron spectroscopy, Faraday Discuss. Chem. Soc., 1972, 54, 227. [all data]

Notes

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• Symbols used in this document:
  

  EA	Electron affinity
  ΔfusH	Enthalpy of fusion
  ΔsubH	Enthalpy of sublimation
  ΔsubH°	Enthalpy of sublimation at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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