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Pyridine, tungsten pentacarbonyl


Gas phase 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

Quantity Value Units Method Reference Comment
Deltafgas-144.9 ± 2.6kcal/molReviewMartinho SimõesThe enthalpy of formation relies on -211.3 ± 0.65 kcal/mol for the enthalpy of formation of W(CO)6(g)
Deltafgas-144.7kcal/molReviewMartinho SimõesThe enthalpy of formation relies on -229.5 ± 0.57 kcal/mol for the enthalpy of formation of W(CO)6(cr)

Condensed phase 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

Quantity Value Units Method Reference Comment
Deltafsolid-171.1 ± 2.5kcal/molReviewMartinho SimõesThe enthalpy of formation relies on -211.3 ± 0.65 kcal/mol for the enthalpy of formation of W(CO)6(g)
Deltafsolid-170.9kcal/molReviewMartinho SimõesThe enthalpy of formation relies on -229.5 ± 0.57 kcal/mol for the enthalpy of formation of W(CO)6(cr)

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

Tungsten hexacarbonyl (cr) + 1,3-Diazine (l) = C10H5NO5W (cr) + Carbon monoxide (g)

By formula: C6O6W (cr) + C4H4N2 (l) = C10H5NO5W (cr) + CO (g)

Quantity Value Units Method Reference Comment
Deltar8.27kcal/molN/ANakashima and Adamson, 1982The reaction enthalpy was calculated from the enthalpy of the reaction W(CO)6(solution) + py(solution) = W(CO)5(py)(solution) + CO(solution) in cyclohexane, 6.55 ± 0.69 kcal/mol, together with the enthalpies of solution of W(CO)6(cr), W(CO)5(py)(cr), and py(l), 35.7, 36.4, and 1.9 kcal/mol, respectively Nakashima and Adamson, 1982.

Tungsten hexacarbonyl (solution) + 1,3-Diazine (solution) = C10H5NO5W (solution) + Carbon monoxide (solution)

By formula: C6O6W (solution) + C4H4N2 (solution) = C10H5NO5W (solution) + CO (solution)

Quantity Value Units Method Reference Comment
Deltar6.55 ± 0.69kcal/molPCNakashima and Adamson, 1982solvent: Cyclohexane
Deltar5.95 ± 0.69kcal/molPCNakashima and Adamson, 1982solvent: Benzene
Deltar4.40 ± 0.1kcal/molPCNakashima and Adamson, 1982solvent: Tetrahydrofuran

C10H5NO5W (cr) + Carbon monoxide (g) = Tungsten hexacarbonyl (g) + 1,3-Diazine (g)

By formula: C10H5NO5W (cr) + CO (g) = C6O6W (g) + C4H4N2 (g)

Quantity Value Units Method Reference Comment
Deltar20. ± 2.4kcal/molDSCDaamen, van der Poel, et al., 1979Please also see Meester, Vriends, et al., 1976.

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.

Martinho Simões
Martinho Simões, J.A., Private communication (see http://webbook.nist.gov/chemistry/om/). [all data]

Nakashima and Adamson, 1982
Nakashima, M.; Adamson, A.W., J. Phys. Chem., 1982, 86, 2905. [all data]

Daamen, van der Poel, et al., 1979
Daamen, H.; van der Poel, H.; Stufkens, D.J.; Oskam, A., Thermochim. Acta, 1979, 34, 69. [all data]

Meester, Vriends, et al., 1976
Meester, M.A.M.; Vriends, R.C.J.; Stufkens, D.J.; Vrieze, K., Inorg. Chim. Acta, 1976, 19, 95. [all data]


Notes

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