Osmium, dodecacarbonyltri-, triangulo


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
Δfgas-1644. ± 26.kJ/molReviewMartinho Simões 

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

C11H2O11Os (solution) + Carbon monoxide (solution) = Hydrogen (g) + Osmium, dodecacarbonyltri-, triangulo (solution)

By formula: C11H2O11Os (solution) + CO (solution) = H2 (g) + C12O12Os3 (solution)

Quantity Value Units Method Reference Comment
Δr-37.7 ± 9.6kJ/molES/KSPoë, Sampson, et al., 1993solvent: Decalin; Calculated from equilibrium and kinetic data Poë, Sampson, et al., 1993.
Δr-77.4 ± 9.7kJ/molN/APoë, Sampson, et al., 1993solvent: Decalin; Calculated from data for the reactions Os3(CO)10(H)2(solution) + CO(solution) = Os3(CO)11(H)2(solution) (hrxn [kJ/mol]=-39.7±1.3, srxn [J/(mol K)]=-80.3±3.8) and Os3(CO)11(H)2(solution) + CO(solution) = Os3(CO)12(solution) + H2(g) (hrxn [kJ/mol]=-37.7±9.6, srxn [J/(mol K)]=-32.6±27.6) Poë, Sampson, et al., 1993.

Osmium, dodecacarbonyltri-, triangulo (cr) = 12Carbon monoxide (g) + 3osmium (cr)

By formula: C12O12Os3 (cr) = 12CO (g) + 3Os (cr)

Quantity Value Units Method Reference Comment
Δr423. ± 17.kJ/molTD-HFCConnor, Skinner, et al., 1973Please also see Pedley and Rylance, 1977. The value for the reaction enthalpy was considered a low limit Connor, Skinner, et al., 1973

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]

Poë, Sampson, et al., 1993
Poë, A.J.; Sampson, C.N.; Smith, R.T.; Zheng, Y., J. Am. Chem. Soc., 1993, 115, 3174. [all data]

Connor, Skinner, et al., 1973
Connor, J.A.; Skinner, H.A.; Virmani, Y., High temperature microcalorimetric studies of the thermal decomposition and iodination of polynuclear carbonyls of Fe, Co, Ru, Rh, Re, Os and Ir, Faraday Symp. Chem. Soc., 1973, 8, 18, https://doi.org/10.1039/fs9730800018 . [all data]

Pedley and Rylance, 1977
Pedley, J.B.; Rylance, J., Computer Analysed Thermochemical Data: Organic and Organometallic Compounds, University of Sussex, Brigton, 1977. [all data]


Notes

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