Bis(η5-cyclopentadienyl)tungsten dihydride
- Formula: C10H12W
- Molecular weight: 316.04
- CAS Registry Number: 1271-33-6
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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 | 79.95 ± 0.79 | kcal/mol | Review | Martinho Simões | |
| ΔfH°gas | 74.2 ± 2.1 | kcal/mol | Review | Martinho Simões | The enthalpy of formation relies on -15.1 ± 1.7 kcal/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 as indicated in comments:
MS - José A. Martinho Simões
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔsubH° | 20.1 ± 0.38 | kcal/mol | CC-SB | Dias, Diogo, et al., 1990 | Another value for the enthalpy of sublimation has been reported: 23.0 ± 0.50 kcal/mol Tel'noi, Rabinovich, et al., 1976; MS |
| ΔsubH° | 23.0 ± 0.50 | kcal/mol | N/A | Pilcher and Skinner, 1983 | See also Calado, Dias, et al., 1979 and Tel'noi, Rabinovich, et al., 1976.; AC |
Enthalpy of sublimation
| ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 20.2 ± 0.38 | 313. to 323. | ME | Dias, Diogo, et al., 1990, 2 | AC |
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]
Dias, Diogo, et al., 1990
Dias, A.R.; Diogo, H.P.; Minas da Piedade, M.E.; Martinho Simões, J.A.; Carson, A.S.; Jamea, E.H.,
J. Organometal. Chem., 1990, 391, 361. [all data]
Tel'noi, Rabinovich, et al., 1976
Tel'noi, V.I.; Rabinovich, I.B.; Kir'yanov, K.V.; Smirnov, A.S.,
Dokl. Akad. Nauk SSSR, 1976, 231, 733. [all data]
Pilcher and Skinner, 1983
Pilcher, G.; Skinner, H.A.,
Thermochemistry of organometallic compounds, 1983, 43-90, https://doi.org/10.1002/9780470771686.ch2
. [all data]
Calado, Dias, et al., 1979
Calado, J.C.G.; Dias, A.R.; Simo~es, J.A. Martinho; da Silva, M.A.V. Ribeiro,
Bond-enthalpy contributions in M(η-C5H5)2L2 complexes (M = Mo, W;L = H, CH3, Cl),
Journal of Organometallic Chemistry, 1979, 174, 1, 77-80, https://doi.org/10.1016/S0022-328X(00)96164-3
. [all data]
Dias, Diogo, et al., 1990, 2
Dias, A.R.; Diogo, H.P.; Minas da Piedade, M.E.; Simoes, J.A.M.; Carson, A.S.; Jamea, E.H.,
Standard enthalpies of formation of gaseous dicyclopentadienylmolybdenum and -tungsten dihydrides,
J. Organomet. Chem., 1990, 391, 361-366. [all data]
Notes
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- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas 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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