Bis(η5-cyclopentadienyl)dimethyl tungsten
- Formula: C12H16W
- Molecular weight: 344.10
- CAS Registry Number: 39333-53-4
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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 | 346.2 ± 8.7 | kJ/mol | Review | Martinho Simões | The enthalpy of formation relies on -63.1 ± 7.2 kJ/mol for the enthalpy of formation of W(Cp)2(Cl)2(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 | 271.6 ± 7.6 | kJ/mol | Review | Martinho Simões | The enthalpy of formation relies on -63.1 ± 7.2 kJ/mol for the enthalpy of formation of W(Cp)2(Cl)2(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 by: José A. Martinho Simões
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔsubH° | 74.6 ± 4.2 | kJ/mol | RSC | Calado, Dias, et al., 1980 |
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
C12H16W (cr) + 2( • 5.55
) (solution) = C10H10Cl2W (cr) + 2
(g)
By formula: C12H16W (cr) + 2(HCl • 5.55H2O) (solution) = C10H10Cl2W (cr) + 2CH4 (g)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -169.9 ± 2.3 | kJ/mol | RSC | Calado, Dias, et al., 1978 | Please also see Calhorda, Dias, et al., 1987. |
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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 5.8 | PE | Green, Jackson, et al., 1975 | LLK |
| 6.0 ± 0.1 | PE | Green, Jackson, et al., 1975 | Vertical value; LLK |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics 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]
Calado, Dias, et al., 1980
Calado, J.C.G.; Dias, A.R.; Minas da Piedade M.E.; Martinho Simões, J.A.,
Rev. Port. Quím., 1980, 22, 57. [all data]
Calado, Dias, et al., 1978
Calado, J.C.G.; Dias, A.R.; Martinho Simões, J.A.; Ribeiro da Silva, M.A.V.,
J. Chem. Soc., Chem. Commun., 1978, 737.. [all data]
Calhorda, Dias, et al., 1987
Calhorda, M.J.; Dias, A.R.; Minas da Piedade M.E.; Salema, M.S.; Martinho Simões J.A.,
Organometallics, 1987, 6, 734. [all data]
Green, Jackson, et al., 1975
Green, J.C.; Jackson, S.E.; Higginson, B.,
Photoelectron studies of some bent bis(n-cyclopentadienyl)metal complexes. Part I. Some eighteen-electron systems with hydride, alkyl, olefin, allyl, carbonyl ligands,
J. Chem. Soc. Dalton Trans., 1975, 403. [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 at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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