Dimanganese decacarbonyl


Reaction thermochemistry 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: José A. Martinho Simões

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Individual Reactions

Dimanganese decacarbonyl (solution) = 2C5MnO5 (solution)

By formula: C10Mn2O10 (solution) = 2C5MnO5 (solution)

Quantity Value Units Method Reference Comment
Δr37.7 ± 4.1kcal/molES/EChemPugh and Meyer T.J., 1992solvent: Acetonitrile; The value relies on the reaction Gibbs energy, 28.1 ± 4.0 kcal/mol Pugh and Meyer T.J., 1992, and an estimated value, 133.9 J/(mol K), for the reaction entropy Pugh and Meyer T.J., 1992
Δr>24.90kcal/molES/EChemPugh and Meyer, 1988solvent: Acetonitrile; The lower limit is the reaction Gibbs energy
Δr38.0 ± 5.0kcal/molPACGoodman, Peters, et al., 1986solvent: Hexane, cyclohexane, thf or acetonitrile; The average value of the enthalpy of the reaction Mn2(CO)10(solution) = 2xMn(CO)5(solution) + (1-x)Mn2(CO)9(solution) + (1-x)CO(solution) in the solvents indicated is 12.8 ± 1.2 kcal/mol. This value, together with several estimates and auxiliary data led to the reaction enthalpy for the cleavage of Mn-Mn bond
Δr>36.8kcal/molKinSHopgood and Poë, 1966solvent: Decalin; Please also see Poë, 1981. The reaction enthalpy was derived from the enthalpy of activation, 36.76 ± 0.38 kcal/mol Hopgood and Poë, 1966 Poë, 1981, by assuming a negligible barrier for the radical recombination. This procedure was later considered to yield a low limit of the reaction enthalpy Poë, 1983 Marcomini and Poë, 1984 Marcomini and Poë, 1983 Coville, Stolzenberg, et al., 1983. See also Schmidt, Trogler, et al., 1984

Dimanganese decacarbonyl (solution) + Dirhenium decacarbonyl (solution) = 2C10MnO10Re (solution)

By formula: C10Mn2O10 (solution) + C10O10Re2 (solution) = 2C10MnO10Re (solution)

Quantity Value Units Method Reference Comment
Δr28.9 ± 7.4kcal/molPCHarel and Adamson, 1986solvent: Cyclohexane; The reaction enthalpy was calculated from the enthalpies of the following reactions: Mn2(CO)10(solution) + I2(solution) = 2Mn(CO)5(I)(solution), -44.9 ± 2.0 kcal/mol, Re2(CO)10(solution) + I2(solution) = 2Re(CO)5(I)(solution), -37.6 ± 3.8 kcal/mol, and MnRe(CO)10(solution) + I2(solution) = Mn(CO)5(I)(solution) + Re(CO)5(I)(solution), -55.7 ± 3.0 kcal/mol
Δr8.22 ± 0.31kcal/molEqSMarcomini and Poë, 1984solvent: Decalin; Temperature range: 443-463 K

Dimanganese decacarbonyl (cr) + Iodine (cr) = 2Manganese, pentacarbonyliodo- (cr)

By formula: C10Mn2O10 (cr) + I2 (cr) = 2C5IMnO5 (cr)

Quantity Value Units Method Reference Comment
Δr-44.2 ± 2.1kcal/molPCHarel and Adamson, 1986The reaction enthalpy was calculated from the enthalpy of the same reaction in cyclohexane, -44.9 ± 2.0 kcal/mol Harel and Adamson, 1986, and from the solution enthalpies of Mn2(CO)10(cr), 8.60 ± 0.50 kcal/mol, I2(cr), 4.90 ± 0.1 kcal/mol, and Mn(CO)5(I)(cr), 6.4 ± 0.1 kcal/mol Harel and Adamson, 1986. The latter value refers to the solution in benzene and is therefore taken as an approximation

Dimanganese decacarbonyl (g) = 2C5MnO5 (g)

By formula: C10Mn2O10 (g) = 2C5MnO5 (g)

Quantity Value Units Method Reference Comment
Δr>42.1kcal/molESTSmith, 1988 
Δr22.kcal/molESTConnor, Zafarani-Moattar, et al., 1982 
Δr23. ± 3.1kcal/molEG/EIMSBidinosti and McIntyre, 1970The reaction enthalpy includes an estimated correction to 298 K. A value of 24.9 ± 2.0 kcal/mol was reported at an average temperature of 540 K Bidinosti and McIntyre, 1970. The enthalpy of formation relies on -378.9 ± 1.0 kcal/mol for the enthalpy of formation of Mn2(CO)10(g)

Dimanganese decacarbonyl (solution) + Hydrogen (solution) = 2Hydromanganese pentacarbonyl (solution)

By formula: C10Mn2O10 (solution) + H2 (solution) = 2C5HMnO5 (solution)

Quantity Value Units Method Reference Comment
Δr8.70 ± 0.31kcal/molEqSKlingler R.J. and Rathke, 1992solvent: Supercritical carbon dioxide; Temperature range: 373-463 K

Dimanganese decacarbonyl (solution) + Dicobalt octacarbonyl (solution) = 2C9CoMnO9 (solution)

By formula: C10Mn2O10 (solution) + C8Co2O8 (solution) = 2C9CoMnO9 (solution)

Quantity Value Units Method Reference Comment
Δr0.79 ± 0.31kcal/molEqSKlingler R.J. and Rathke, 1992solvent: Supercritical carbon dioxide; Temperature range: 353-453 K

Dimanganese decacarbonyl (g) = C9Mn2O9 (g) + Carbon monoxide (g)

By formula: C10Mn2O10 (g) = C9Mn2O9 (g) + CO (g)

Quantity Value Units Method Reference Comment
Δr38.0 ± 2.0kcal/molLPHPSmith, 1988The reaction enthalpy relies on an activation energy of 38.0 ± 2.0 kcal/mol and assumes a negligible activation barrier for product recombination.

Dimanganese decacarbonyl (solution) + Iodine (solution) = 2Manganese, pentacarbonyliodo- (solution)

By formula: C10Mn2O10 (solution) + I2 (solution) = 2C5IMnO5 (solution)

Quantity Value Units Method Reference Comment
Δr-44.9 ± 2.0kcal/molPCHarel and Adamson, 1986solvent: Cyclohexane

Dimanganese decacarbonyl (cr) + 2Bromine (g) = 2manganese dibromide (cr) + 10Carbon monoxide (g)

By formula: C10Mn2O10 (cr) + 2Br2 (g) = 2Br2Mn (cr) + 10CO (g)

Quantity Value Units Method Reference Comment
Δr-63.0 ± 2.0kcal/molHAL-HFCConnor, Zafarani-Moattar, et al., 1982 

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.

Pugh and Meyer T.J., 1992
Pugh, J.R.; Meyer T.J., J. Am. Chem. Soc., 1992, 114, 3784. [all data]

Pugh and Meyer, 1988
Pugh, J.R.; Meyer, T.J., J. Am. Chem. Soc., 1988, 110, 8245. [all data]

Goodman, Peters, et al., 1986
Goodman, J.L.; Peters, K.S.; Vaida, V., Organometallics, 1986, 5, 815. [all data]

Hopgood and Poë, 1966
Hopgood, D.; Poë, A.J., J. Chem. Soc., Chem. Commun., 1966, 831.. [all data]

Poë, 1981
Poë, A., ACS Symp. Ser., 1981, No. 155, 135. [all data]

Poë, 1983
Poë, A., Chem. Brit., 1983, 19, 997. [all data]

Marcomini and Poë, 1984
Marcomini, A.; Poë, A., J. Chem. Soc., Dalton Trans., 1984, 95.. [all data]

Marcomini and Poë, 1983
Marcomini, A.; Poë, A., J. Am. Chem. Soc., 1983, 105, 6952. [all data]

Coville, Stolzenberg, et al., 1983
Coville, N.J.; Stolzenberg, A.M.; Muetterties, E.L., J. Am. Chem. Soc., 1983, 105, 2499. [all data]

Schmidt, Trogler, et al., 1984
Schmidt, S.P.; Trogler, W.C.; Basolo, F., J. Am. Chem. Soc., 1984, 106, 1308. [all data]

Harel and Adamson, 1986
Harel, Y.; Adamson, A.W., J. Phys. Chem., 1986, 90, 6693. [all data]

Smith, 1988
Smith, G.P., Polyhedron, 1988, 7, 1605. [all data]

Connor, Zafarani-Moattar, et al., 1982
Connor, J.A.; Zafarani-Moattar, M.T.; Bickerton, J.; El-Saied, N.I.; Suradi, S.; Carson, R.; Al Takkhin, G.; Skinner, H.A., Organomet., 1982, 1, 1166. [all data]

Bidinosti and McIntyre, 1970
Bidinosti, D.R.; McIntyre, N.S., Mass spectrometric study of the thermal decomposition of dimanganese decacarbonyl and dicobalt octacarbonyl, Can. J. Chem., 1970, 48, 593. [all data]

Klingler R.J. and Rathke, 1992
Klingler R.J.; Rathke, J.W., Inorg. Chem., 1992, 31, 804. [all data]


Notes

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