Molybdenum, tetrakis[μ-(acetato-O:O')]di-, (Mo-Mo)

• Formula: C₈H₁₂Mo₂O₈
• Molecular weight: 428.10
• IUPAC Standard InChI: InChI=1S/4C2H4O2.2Mo/c4*1-2(3)4;;/h4*1H3,(H,3,4);;/q;;;;2*+2/p-4 Copy

  
• IUPAC Standard InChIKey: DOOLFANBWPPEGQ-UHFFFAOYSA-J Copy
• CAS Registry Number: 14221-06-8
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: Molybdenum, tetrakis(μ-acetato)di-, (Mo-Mo); Dimolybdenum tetraacetate; Tetraacetatodimolybdenum; Mo2(O2CCH3)4; Molybdenum, tetrakis[μ-(acetato-O:O')]di-,; tetrakis[μ-(acetato-O:O')]dimolybdenum
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• Information on this page:
  • Phase change data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Mass spectrum (electron ionization)
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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

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:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

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.

Pilcher and Skinner, 1983
Pilcher, G.; Skinner, H.A., Thermochemistry of organometallic compounds, 1983, 43-90, https://doi.org/10.1002/9780470771686.ch2 . [all data]

Cavell, Garner, et al., 1979
Cavell, Kingsley J.; Garner, C. David; Pilcher, Geoffrey; Parkes, Stephen, Standard enthalpies of formation of the tetra-«65533»-acetato-derivatives of dimolybdenum(II), chromium(II)?molybdenum(II), dichromium(II), and dichromium(II) dihydrate, and di-«65533»-acetato-bis(pentane-2,4-dionato)dimolybdenum(II), and their metal?metal bond enthalpy contributions, J. Chem. Soc., Dalton Trans., 1979, 11, 1714, https://doi.org/10.1039/dt9790001714 . [all data]

Slyusareva, Kondrat'ev, et al., 2008
Slyusareva, I.V.; Kondrat'ev, Yu.V.; Kozin, A.O.; Belorukova, L.P., Vestn. St. Petersburg. Universit. Ser. 4 Fiz. Khim., 2008, 3, 64. [all data]

Carson, 1984
Carson, A.S., The molar enthalpy of dehydration of Cr2(O2CCH3)4·2H2O(cr) and the molar enthalpies of sublimation of Cr2(O2CCH3)4(cr), Mo2(O2CCH3)4(cr), and Mo2(O2CCF3)4(cr), The Journal of Chemical Thermodynamics, 1984, 16, 5, 427-429, https://doi.org/10.1016/0021-9614(84)90198-8 . [all data]

Chisholm, Clark, et al., 1987
Chisholm, M.H.; Clark, D.L.; Huffman, J.C.; Van Der Sluys, W.G.; Kober, E.M.; Lichtenberger, D.L.; Bursten, B.E., The tungsten-tungsten triple bond. 13. Bisalkyl tetracarboxylates of dimolybdenum and ditungsten. Triple bonds between metal atoms with the valence molecular orbital description 4 2, J. Am. Chem. Soc., 1987, 109, 6796. [all data]

Lichtenberger and Blevins, 1984
Lichtenberger, D.L.; Blevins, C.H., II, Contribution of a Σ-orbital electron to a quadruple metal-metal bond. A direct experimental measure from vibrational fine structure in the Σ ionization of mo₂(O₂CCH₃)₄, J. Am. Chem. Soc., 1984, 106, 1636. [all data]

Coleman, Green, et al., 1979
Coleman, A.W.; Green, J.C.; Hayes, A.J.; Seddon, E.A.; Lloyd, D.R.; Niwa, Y., A comparison of the electronic structure of some group 6A dimetal tetracarboxylates using photoelectron spectroscopy, J. Chem. Soc. Dalton Trans., 1979, 75, 1057. [all data]

Green and Hayes, 1975
Green, J.C.; Hayes, A.J., Ionization energies of an Mo-Mo quadruple bond; a He(I) photoelectron study of some molybdenum-dycarboxylate dimers, Chem. Phys. Lett., 1975, 31, 306. [all data]

Notes

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• Symbols used in this document:
  

  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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