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 | -606. ± 11. | kJ/mol | Review | Martinho Simões | The enthalpy of formation relies on -883.9 ± 2.7 kJ/mol for the enthalpy of formation of W(CO)6(g) |
| ΔfH°gas | -605.3 | kJ/mol | Review | Martinho Simões | The enthalpy of formation relies on -960.3 ± 2.4 kJ/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 |
|---|---|---|---|---|---|
| ΔfH°solid | -716. ± 10. | kJ/mol | Review | Martinho Simões | The enthalpy of formation relies on -883.9 ± 2.7 kJ/mol for the enthalpy of formation of W(CO)6(g) |
| ΔfH°solid | -715.0 | kJ/mol | Review | Martinho Simões | The enthalpy of formation relies on -960.3 ± 2.4 kJ/mol for the enthalpy of formation of W(CO)6(cr) |
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 as indicated in comments:
MS - José A. Martinho Simões
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔsubH° | 109.7 ± 2.7 | kJ/mol | DSC | Daamen, Ernsting, et al., 1979 | MS |
Enthalpy of sublimation
| ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 109.7 ± 2.7 | 299. | ME | Daamen, Ernsting, et al., 1979, 2 | Based on data from 285. to 313. K.; AC |
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° | 34.6 | kJ/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, 27.4 ± 2.9 kJ/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 7.9 kJ/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° | 27.4 ± 2.9 | kJ/mol | PC | Nakashima and Adamson, 1982 | solvent: Cyclohexane |
| ΔrH° | 24.9 ± 2.9 | kJ/mol | PC | Nakashima and Adamson, 1982 | solvent: Benzene |
| ΔrH° | 18.4 ± 0.4 | kJ/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° | 83. ± 10. | kJ/mol | DSC | Daamen, van der Poel, et al., 1979 | Please 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]
Daamen, Ernsting, et al., 1979
Daamen, H.; Ernsting, J.M.; Oskam, A.,
Thermochim. Acta, 1979, 33, 217. [all data]
Daamen, Ernsting, et al., 1979, 2
Daamen, H.; Ernsting, J.M.; Oskam, A.,
Vapour pressure measurements on M(CO)5L (M = Cr, Mo, W; L = piperidine, pyridine, pyrazine, pyrazole, thiazole),
Thermochimica Acta, 1979, 33, 217-223, https://doi.org/10.1016/0040-6031(79)87044-6
. [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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- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔrH° Enthalpy of reaction at standard conditions 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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