Gallium trimethyl

• Formula: C₃H₉Ga
• Molecular weight: 114.827
• IUPAC Standard InChI: InChI=1S/3CH3.Ga/h3*1H3; Copy

  
• IUPAC Standard InChIKey: XCZXGTMEAKBVPV-UHFFFAOYSA-N Copy
• CAS Registry Number: 1445-79-0
• Chemical structure:
  This structure is also available as a 2d Mol file
• Other names: trimethylgallium
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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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

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
MS - José A. Martinho Simões
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Enthalpy of vaporization

Enthalpy of sublimation

Enthalpy of fusion

Entropy of fusion

Enthalpy of phase transition

Entropy of phase transition

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

 (l) + 3 (cr) = GaI₃ (cr) + 3 (l)

By formula: C₃H₉Ga (l) + 3I₂ (cr) = GaI₃ (cr) + 3CH₃I (l)

 (l) + 2 (cr) = CH₃GaI₂ (cr) + 2 (l)

By formula: C₃H₉Ga (l) + 2I₂ (cr) = CH₃GaI₂ (cr) + 2CH₃I (l)

 (g) = C₂H₆Ga (g) +  (g)

By formula: C₃H₉Ga (g) = C₂H₆Ga (g) + CH₄ (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

Appearance energy determinations

References

Go To: Top, Gas 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]

Long and Sackman, 1958
Long, L.H.; Sackman, J.F., The heat of formation and physical properties of gallium trimethyl, Trans. Faraday Soc., 1958, 54, 1797, https://doi.org/10.1039/tf9585401797 . [all data]

Fowell and Mortimer, 1958
Fowell, P.A.; Mortimer, C.T., J. Chem. Soc., 1958, 3734.. [all data]

Lebedev, Smirnova, et al., 1988
Lebedev, B.V.; Smirnova, N.N.; Kulagina, T.G., Enthalpy, Eentropy and Gibbs Energy in bulk polymerization of cyclohexane with ring-opening between 0 and 330 K at standaed pressure, Makromol. Chem., Rapid Commun., 1988, 9, 781. [all data]

Maslova, Novoselova, et al., 1973
Maslova, V.A.; Novoselova, N.V.; Moseeva, E.M.; Berezhnaya, N.D.; Rabinovich, I.B., Specific Heat and Phase Changes of Triethylindium, Triethylantimony, and Trimethylgallium, Tr. Khim. Khim. Tekhnol., 1973, 1973, 51. [all data]

Fulem, Ruzicka, et al., 2003
Fulem, M.; Ruzicka, K.; Ruzicka, V.; Hulicius, E.; Simecek, T.; Melichar, K.; Pangrác, J.; Rushworth, S.A.; Smith, L.M., Vapor pressure of metal organic precursors, Journal of Crystal Growth, 2003, 248, 99-107, https://doi.org/10.1016/S0022-0248(02)01840-7 . [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]

Maslova, Novoselova, et al., 1973, 2
Maslova, V.A.; Novoselova, N.V.; Moseeva, E.M.; Berezhnaya, N.D.; Rabinovich, I.B., Specific heat and phase changes of triethylindium, triethyl antimony, and trimethyl gallium, Trudy. Khim. Khim. Tekhnol., 1973, (2), 51-52. [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Lebedev, Smirnova, et al., 1988, 2
Lebedev, B.V.; Smirnova, N.N.; Kulagina, T.G., Enthalpy, entropy and Gibbs energy in bulk polymerization of cyclohexene with ring-opening between 0 and 330 K at standard pressure, Makromol. Chem., Rapid Commun., 1988, 9, 781-784. [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]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds in Academic Press, New York, 1970. [all data]

Smith and Patrick, 1983
Smith, G.P.; Patrick, R., Int. J. Chem. Kinet., 1983, 15, 167. [all data]

McMillen and Golden, 1982
McMillen, D.F.; Golden, D.M., Hydrocarbon bond dissociation energies, Ann. Rev. Phys. Chem., 1982, 33, 493. [all data]

Barker, Lappert, et al., 1975
Barker, G.K.; Lappert, M.F.; Pedley, J.B.; Sharp, G.J.; Westwood, N.P.C., Bonding studies of boron and the group 3-5 elements. Part XV. He(I) photoelectron spectra of monomeric group 3 tri-halide, trimethyl, and mixed halogenomethyl species, J. Chem. Soc. Dalton Trans., 1975, 1765. [all data]

Glockling and Strafford, 1971
Glockling, F.; Strafford, R.G., Electron impact studies on some group III metal alkyls, J. Chem. Soc. A, 1971, 1761. [all data]

Notes

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• Symbols used in this document:
  

  AE	Appearance energy
  Ttriple	Triple point temperature
  ΔHtrs	Enthalpy of phase transition
  ΔStrs	Entropy of phase transition
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔsubH	Enthalpy of sublimation
  ΔvapH	Enthalpy of vaporization
  ΔvapH°	Enthalpy of vaporization at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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