Pentamethyl tantalum


Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics 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
Δfgas213. ± 27.kJ/molReviewMartinho Simões 

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics 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
Δfliquid171. ± 26.kJ/molReviewMartinho Simões 

Phase change data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics 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
Δvap42.0 ± 4.2kJ/molRSCAdedeji, Connor J.A., et al., 1976 

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics 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

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

C5H15Ta (l) + 2.5Water (l) = 0.5O5Ta2 (cr) + 5Methane (g)

By formula: C5H15Ta (l) + 2.5H2O (l) = 0.5O5Ta2 (cr) + 5CH4 (g)

Quantity Value Units Method Reference Comment
Δr-853. ± 26.kJ/molRSCAdedeji, Connor J.A., et al., 1976 

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry 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 as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

IE (eV) Method Reference Comment
8.2PEGalyer, Wilkinson, et al., 1975LLK
8.83 ± 0.02PEGreen, Lloyd, et al., 1978Vertical value; LLK
8.7PEGalyer, Wilkinson, et al., 1975Vertical 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]

Adedeji, Connor J.A., et al., 1976
Adedeji, F.A.; Connor J.A.; Skinner, H.A.; Galyer, L.; Wilkinson, G., J. Chem. Soc., Chem. Commun., 1976, 159.. [all data]

Galyer, Wilkinson, et al., 1975
Galyer, L.; Wilkinson, G.; Lloyd, D.R., The photoelectron spectra of hexamethyltungsten and pentamethyltantalum, J. Chem. Soc., Chem. Commun., 1975, 497. [all data]

Green, Lloyd, et al., 1978
Green, J.C.; Lloyd, D.R.; Galyer, L.; Mertis, K.; Wilkinson, G., Photoelectron spectra of some transition metal alkyls and oxoalkyls, J. Chem. Soc. Dalton Trans., 1978, 10, 1403. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References