Osmocene
- Formula: C10H10Os
- Molecular weight: 320.42
- IUPAC Standard InChI: InChI=1S/2C5H5.Os/c2*1-2-4-5-3-1;/h2*1-5H;
- IUPAC Standard InChIKey: RBPKLTFNJHKDRH-UHFFFAOYSA-N
- CAS Registry Number: 1273-81-0
- Chemical structure:
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, References, Notes
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 | 87.07 | kcal/mol | Review | Martinho Simões | The enthalpy of formation relies on the assumption that OsO4(cr, yellow) is the only oxide formed but it is likely that the combustion products include a mixture of oxides. |
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 | 67.83 | kcal/mol | Review | Martinho Simões | The enthalpy of formation relies on the assumption that OsO4(cr, yellow) is the only oxide formed but it is likely that the combustion products include a mixture of oxides. |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -1444.0 | kcal/mol | CC-SB | Brendel and Grubert, 1959 | No experimental details are reported. |
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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
MS - José A. Martinho Simões
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 571. | K | N/A | Baev, Barkatin, et al., 1979 | Uncertainty assigned by TRC = 0.00001 K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| Tfus | 506.8 | K | N/A | Baev, Barkatin, et al., 1979 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.5 K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔsubH° | 19.2 ± 0.41 | kcal/mol | N/A | Baev and Barkatin, 1984 | AC |
| ΔsubH° | 19.2 ± 0.41 | kcal/mol | CC-SB | Baev and Barkatin, 1984 | Another value for the enthalpy of vaporization has been reported: 18.0 kcal/mol Fischer and Grubert, 1959; MS |
Enthalpy of vaporization
| ΔvapH (kcal/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 13.5 ± 0.31 | 535. | Baev and Barkatin, 1984 | Based on data from 506. to 563. K.; AC |
Enthalpy of sublimation
| ΔsubH (kcal/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 17.4 ± 0.33 | 393. to 506. | Baev and Barkatin, 1984 | AC |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change 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]
Brendel and Grubert, 1959
Brendel, G.; Grubert, H.,
Chem. Ber., 1959, 92, 2302. [all data]
Baev, Barkatin, et al., 1979
Baev, A.K.; Barkatin, A.A.; Gubin, S.P.; Dyagileva, S.P.,
Thermodynamics of phase transitions and vapor state of some compounds of elements with incomplete d-shells
in Vses. Konf. po Kalorimetrii i Khim. Termodinamike, 8th, Ivanovo, p 386-389, 1979. [all data]
Baev and Barkatin, 1984
Baev, A.K.; Barkatin, A.A.,
Russ. J. Phys. Chem., 1984, 58, 195. [all data]
Fischer and Grubert, 1959
Fischer, E.O.; Grubert, H.,
Chem. Ber., 1959, 92, 2302. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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