Pentamethyl tantalum

• Formula: C₅H₁₅Ta
• Molecular weight: 256.1205
• CAS Registry Number: 53378-72-6
• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • References
  • Notes
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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

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

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 by: José A. Martinho 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

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) + 2.5 (l) = 0.5O₅Ta₂ (cr) + 5 (g)

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

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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

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

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• Symbols used in this document:
  

  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfH°liquid	Enthalpy of formation of liquid at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔvapH°	Enthalpy of vaporization at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
• The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
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