Ge(Me)3

Formula: C₃H₉Ge
Molecular weight: 117.74
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Gas phase thermochemistry data

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Data compiled by: José A. Martinho Simões

Quantity	Value	Units	Method	Reference	Comment
Δ_fH°_gas	22.2 ± 4.3	kcal/mol	Review	Martinho Simões	The enthalpy of formation relies on -25.7 ± 1.5 kcal/mol for the enthalpy of formation of Ge(Me)4(g).
Δ_fH°_gas	20. ± 3.6	kcal/mol	Review	Martinho Simões	The enthalpy of formation relies on -25.7 ± 1.5 kcal/mol for the enthalpy of formation of Ge(Me)4(g).

Reaction thermochemistry data

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Data compiled by: José A. Martinho Simões

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Individual Reactions

C₃H₁₀Ge (g) = C₃H₉Ge (g) + (g)

By formula: C₃H₁₀Ge (g) = C₃H₉Ge (g) + H (g)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	79.8 ± 2.9	kcal/mol	ICR	Brinkman, Salomon, et al., 1995	The reaction enthalpy was derived from the acidity of Ge(Me)3(H)(g), 361.5 ± 2.8 kcal/mol, the electron affinity of Ge(Me)3(g), 31.91 ± 0.69 kcal/mol Brinkman, Salomon, et al., 1995, and the ionization energy of H(g), 313.58 kcal/mol Lias, Bartmess, et al., 1988.

(g) = C₃H₉Ge (g) + (g)

By formula: C₄H₁₂Ge (g) = C₃H₉Ge (g) + CH₄ (g)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	81.0 ± 3.1	kcal/mol	VLPP	Smith and Patrick, 1983
Δ_rH°	83.0 ± 4.0	kcal/mol	N/A	McMillen and Golden, 1982

(g) + C₃H₁₀Ge (g) = C₃H₉Ge (g) + (g)

By formula: I (g) + C₃H₁₀Ge (g) = C₃H₉Ge (g) + HI (g)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	10.0 ± 0.43	kcal/mol	KinG	Doncaster and Walsh, 1979

References

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Martinho Simões
Martinho Simões, J.A., Private communication (see http://webbook.nist.gov/chemistry/om/). [all data]

Brinkman, Salomon, et al., 1995
Brinkman, E.A.; Salomon, K.; Tumas, W.; Brauman, J.I., Electron affinities and gas-phase acidities of organogermanium and organotin compounds, J. Am. Chem. Soc., 1995, 117, 17, 4905, https://doi.org/10.1021/ja00122a022 . [all data]

Lias, Bartmess, et al., 1988
Lias, S.G.; Bartmess, J.E.; Liebman, J.F.; Holmes, J.L.; Levin, R.D.; Mallard, W.G., Gas-Phase Ion and Neutral Thermochemistry, J. Phys. Chem. Ref. Data, 1988, 17, Suppl. 1. [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]

Doncaster and Walsh, 1979
Doncaster, A.M.; Walsh, R., J. Phys. Chem., 1979, 83, 578. [all data]

Notes

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Symbols used in this document:

Δ_fH°_gas Enthalpy of formation of gas at standard conditions

Δ_rH° Enthalpy of reaction at standard conditions
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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Δ_fH°_gas	Enthalpy of formation of gas at standard conditions
Δ_rH°	Enthalpy of reaction at standard conditions