Stibine, trimethyl-

Formula: C₃H₉Sb
Molecular weight: 166.864
IUPAC Standard InChI: InChI=1S/3CH3.Sb/h3*1H3;
IUPAC Standard InChIKey: PORFVJURJXKREL-UHFFFAOYSA-N
CAS Registry Number: 594-10-5
Chemical structure:
This structure is also available as a 2d Mol file
Other names: Trimethylantimony; Trimethylstibine; (CH3)3Sb
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Other data available:
- Gas phase ion energetics data
- Mass spectrum (electron ionization)
Data at other public NIST sites:
- Gas Phase Kinetics Database
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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	7.7 ± 6.0	kcal/mol	Review	Martinho Simões

Condensed phase thermochemistry data

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Data compiled by: José A. Martinho Simões

Quantity	Value	Units	Method	Reference	Comment
Δ_fH°_liquid	0.2 ± 6.0	kcal/mol	Review	Martinho Simões
Quantity	Value	Units	Method	Reference	Comment
Δ_cH°_liquid	-698.2 ± 6.0	kcal/mol	CC-SB	Long and Sackman, 1955	Please also see Pedley and Rylance, 1977 and Cox and Pilcher, 1970.

Phase change data

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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
Δ_vapH°	7.77 ± 0.002	kcal/mol	N/A	Fulem, Moravek, et al., 2010	Based on data from 249. to 296. K.; AC
Δ_vapH°	7.50 ± 0.31	kcal/mol	CC-SB	Bamford, Levi, et al., 1946	Please also see Long and Sackman, 1955, 2.; MS

Reaction thermochemistry data

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Data compiled by: José A. Martinho Simões

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Individual Reactions

Stibine, trimethyl- (g) = C₂H₆Sb (g) + (g)

By formula: C₃H₉Sb (g) = C₂H₆Sb (g) + CH₄ (g)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	59.0 to 61.9	kcal/mol	N/A	Smith and Patrick, 1983
Δ_rH°	61.0 ± 4.0	kcal/mol	N/A	McMillen and Golden, 1982

References

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

Long and Sackman, 1955
Long, L.H.; Sackman, J.F., The heat of formation of antimony trimethyl, Trans. Faraday Soc., 1955, 51, 1062, https://doi.org/10.1039/tf9555101062 . [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]

Fulem, Moravek, et al., 2010
Fulem, Michal; Moravek, Pavel; Pangrac, Jiri; Hulicius, Eduard; Simecek, Tomislav; Ruzicka, Kvetoslav; Ruzicka, Vlastimil; Kozyrkin, Boris; Shatunov, Valery, Vapor Pressure of Trimethylantimony and tert -Butyldimethylantimony, J. Chem. Eng. Data, 2010, 55, 1, 362-365, https://doi.org/10.1021/je900372v . [all data]

Bamford, Levi, et al., 1946
Bamford, C.H.; Levi, D.L.; Newitt, D.M., J. Chem. Soc., 1946, 468.. [all data]

Long and Sackman, 1955, 2
Long, L.H.; Sackman, J.F., Research (Correspondence), 1955, 8, 523. [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]

Notes

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Symbols used in this document:

Δ_cH°_liquid	Enthalpy of combustion of liquid at standard conditions
Δ_fH°_gas	Enthalpy of formation of gas at standard conditions
Δ_fH°_liquid	Enthalpy of formation of liquid at standard conditions
Δ_rH°	Enthalpy of reaction at standard conditions
Δ_vapH°	Enthalpy of vaporization at standard conditions

Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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