Dicobalt octacarbonyl


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-1183.0 ± 9.1kJ/molReviewMartinho Simões 
Δfgas-1185.2 ± 9.4kJ/molReviewMartinho Simões 
Δfgas-1184.1 ± 6.9kJ/molReviewMartinho SimõesSelected data. Average of the values from Connor, Skinner, et al., 1973 and Gardner, Cartner, et al., 1975.

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:
AC - William E. Acree, Jr., James S. Chickos
MS - José A. Martinho Simões

Quantity Value Units Method Reference Comment
Δsub65.2 ± 3.3kJ/molN/APilcher and Skinner, 1983See also Cardner, Gartner, et al., 1975.; AC
Δsub65.2 ± 3.3kJ/molTD-HFCGardner, Cartner, et al., 1975Another value for the enthalpy of sublimation has been reported: 75.3±6.3 Cartner, Robinson, et al., 1973.; MS

Enthalpy of sublimation

ΔsubH (kJ/mol) Temperature (K) Method Reference Comment
84.3 ± 0.5271.TEGarner, Chandra, et al., 1995Based on data from 264. to 278. K.; AC
103.8301.5AStephenson and Malanowski, 1987Based on data from 288. to 315. K. See also Baev, 1968.; AC
75.3 ± 6.3207. to 287.EMCartner, Robinson, et al., 1973, 2AC

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:
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV) Method Reference Comment
8.3 ± 0.1EIBidinosti and McIntyre, 1970RDSH
8.12 ± 0.22EIWinters and Kiser, 1965RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CoCO+14.4 ± 0.5?EIWinters and Kiser, 1965RDSH
Co2CO+16.7 ± 0.37COEIWinters and Kiser, 1965RDSH
CoC2O2+12.7 ± 0.4?EIWinters and Kiser, 1965RDSH
Co2C2O2+14.7 ± 0.56COEIWinters and Kiser, 1965RDSH
CoC3O3+10.9 ± 0.3?EIWinters and Kiser, 1965RDSH
CoC4O4+8.8 ± 0.1?EIBidinosti and McIntyre, 1967RDSH
Co2C4O4+12.2 ± 0.34COEIWinters and Kiser, 1965RDSH
Co2C5O5+10.1 ± 0.43COEIWinters and Kiser, 1965RDSH
Co2C6O6+9.4 ± 0.32COEIWinters and Kiser, 1965RDSH
Co2C7O7+8.6 ± 0.3COEIWinters and Kiser, 1965RDSH
Co+16.9 ± 0.4?EIWinters and Kiser, 1965RDSH
Co2+17.8 ± 0.48COEIWinters and Kiser, 1965RDSH

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]

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]

Gardner, Cartner, et al., 1975
Gardner, P.J.; Cartner, A.; Cunninghame, R.G.; Robinson, B.H., J. Chem. Soc., Dalton Trans., 1975, 2582.. [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]

Cardner, Gartner, et al., 1975
Cardner, Peter J.; Gartner, Anthony; Cunninghame, Robert G.; Robinson, Brian H., Bond energies in dicobalt octacarbonyl and bromo- and chloro-methylidynetricobalt enneacarbonyls, J. Chem. Soc., Dalton Trans., 1975, 23, 2582, https://doi.org/10.1039/dt9750002582 . [all data]

Cartner, Robinson, et al., 1973
Cartner, A.; Robinson, B.; Gardner, P.J., J. Chem. Soc., Chem. Commun., 1973, 317.. [all data]

Garner, Chandra, et al., 1995
Garner, M.L.; Chandra, D.; Lau, K.H., Low-temperature vapor pressures of W-, Cr-, and Co-carbonyls, JPE, 1995, 16, 1, 24-29, https://doi.org/10.1007/BF02646245 . [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Baev, 1968
Baev, A.K., Vestsi Akad. Navak BSSR, Ser. Khim. Navuk, 1968, 4, 76. [all data]

Cartner, Robinson, et al., 1973, 2
Cartner, Anthony; Robinson, Brian; Gardner, Peter J., Heat of formation of dicobalt octacarbonyl and the metal?carbon monoxide bond strength in carbonyls, J. Chem. Soc., Chem. Commun., 1973, 9, 317b, https://doi.org/10.1039/c3973000317b . [all data]

Bidinosti and McIntyre, 1970
Bidinosti, D.R.; McIntyre, N.S., Mass spectrometric study of the thermal decomposition of dimanganese decacarbonyl and dicobalt octacarbonyl, Can. J. Chem., 1970, 48, 593. [all data]

Winters and Kiser, 1965
Winters, R.E.; Kiser, R.W., Ions produced by electron impact with the dimetallic carbonyls of cobalt and manganese, J. Phys. Chem., 1965, 69, 1618. [all data]

Bidinosti and McIntyre, 1967
Bidinosti, D.R.; McIntyre, N.S., The metal-metal bond dissociation energy in cobalt octacarbonyl, Chem. Commun., 1967, 1. [all data]


Notes

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