Pyridine, tungsten pentacarbonyl
- Formula: C10H5NO5W
- Molecular weight: 402.99
- CAS Registry Number: 14586-49-3
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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 |
|---|---|---|---|---|---|
| ΔfH°gas | -144.9 ± 2.6 | kcal/mol | Review | Martinho Simões | The enthalpy of formation relies on -211.3 ± 0.65 kcal/mol for the enthalpy of formation of W(CO)6(g) |
| ΔfH°gas | -144.7 | kcal/mol | Review | Martinho Simões | The 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
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
(cr) +
(l) = C10H5NO5W (cr) +
(g)
By formula: C6O6W (cr) + C4H4N2 (l) = C10H5NO5W (cr) + CO (g)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 8.27 | kcal/mol | N/A | Nakashima and Adamson, 1982 | The 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. |
(solution) +
(solution) = C10H5NO5W (solution) +
(solution)
By formula: C6O6W (solution) + C4H4N2 (solution) = C10H5NO5W (solution) + CO (solution)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 6.55 ± 0.69 | kcal/mol | PC | Nakashima and Adamson, 1982 | solvent: Cyclohexane |
| ΔrH° | 5.95 ± 0.69 | kcal/mol | PC | Nakashima and Adamson, 1982 | solvent: Benzene |
| ΔrH° | 4.40 ± 0.1 | kcal/mol | PC | Nakashima and Adamson, 1982 | solvent: Tetrahydrofuran |
C10H5NO5W (cr) + (g) =
(g) +
(g)
By formula: C10H5NO5W (cr) + CO (g) = C6O6W (g) + C4H4N2 (g)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 20. ± 2.4 | kcal/mol | DSC | Daamen, van der Poel, et al., 1979 | Please also see Meester, Vriends, et al., 1976. |
References
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Notes
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
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, References
- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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