Hexamethylditin


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

Quantity Value Units Method Reference Comment
Δfgas-6.4 ± 2.1kcal/molReviewMartinho SimõesThe enthalpy of formation relies on -44.34 ± 0.88 kcal/mol for the enthalpy of formation of Sn(Me)3(Br)(l).

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

Quantity Value Units Method Reference Comment
Δfliquid-18.4 ± 1.8kcal/molReviewMartinho SimõesThe enthalpy of formation relies on -44.34 ± 0.88 kcal/mol for the enthalpy of formation of Sn(Me)3(Br)(l).

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

Quantity Value Units Method Reference Comment
Δvap12.0 ± 1.0kcal/molRSCCox and Pilcher, 1970 

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

Hexamethylditin (l) + Iodine (cr) = 2C3H9ISn (l)

By formula: C6H18Sn2 (l) + I2 (cr) = 2C3H9ISn (l)

Quantity Value Units Method Reference Comment
Δr-44.00 ± 0.69kcal/molRSCPedley, Skinner, et al., 1957Please also see Pedley and Rylance, 1977 and Cox and Pilcher, 1970.

Hexamethylditin (l) + Bromine (l) = 2C3H9BrSn (l)

By formula: C6H18Sn2 (l) + Br2 (l) = 2C3H9BrSn (l)

Quantity Value Units Method Reference Comment
Δr-70.24 ± 0.50kcal/molRSCPedley, Skinner, et al., 1957Please also see Pedley and Rylance, 1977 and Cox and Pilcher, 1970.

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:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to C6H18Sn2+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
7.8PEGranozzi, Bertoncello, et al., 1985LBLHLM
8.0PESzepes, Koranyi, et al., 1981LLK
8.02 ± 0.15EILappert, Pedley, et al., 1971LLK
8.20PEMochida, Worley, et al., 1985Vertical value; LBLHLM
8.21PEGranozzi, Bertoncello, et al., 1985Vertical value; LBLHLM
8.20PESzepes, Koranyi, et al., 1981Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C3H9Sn+9.51 ± 0.22(CH3)3SnEILappert, Pedley, et al., 1971LLK
C3H9Sn+9.82 ± 0.15?EIYergey and Lampe, 1968RDSH
C3H9Sn+9.65?EIYergey and Lampe, 1968RDSH
C5H15Sn2+8.17 ± 0.03CH3EIYergey and Lampe, 1968RDSH
C6H18Sn2+7.42 ± 0.02?EIPitt, Bursey, et al., 1970RDSH
C6H18Sn2+8.08 ± 0.02?EIYergey and Lampe, 1968RDSH

Mass spectrum (electron ionization)

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin Chemical Concepts
NIST MS number 162369

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References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), 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]

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

Pedley, Skinner, et al., 1957
Pedley, J.B.; Skinner, H.A.; Chernick, C.L., Thermochemistry of metallic alkyls. Part 8.?Tin tetramethyl, and hexamethyl distannane, Trans. Faraday Soc., 1957, 53, 1612, https://doi.org/10.1039/tf9575301612 . [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]

Granozzi, Bertoncello, et al., 1985
Granozzi, G.; Bertoncello, R.; Tondello, E.; Ajo, D., He(I)/He(II) Sn 5p photoionization cross sections: Definitive evidence from the spectra of Sn2(CH3)6, J. Electron Spectrosc. Relat. Phenom., 1985, 36, 207. [all data]

Szepes, Koranyi, et al., 1981
Szepes, L.; Koranyi, T.; Naray-Szabo, G.; Modelli, A.; Distefano, G., Ultraviolet photoelectron spectra of group IV hexamethyl derivatives containing a metal-metal bond, J. Organomet. Chem., 1981, 217, 35. [all data]

Lappert, Pedley, et al., 1971
Lappert, M.F.; Pedley, J.B.; Simpson, J.; Spalding, T.R., Bonding studies of compounds of boron and the Group IV elements. VI. Mass spectrometric studies on compounds Me4M and Me3M-M'Me3 (M and M'=C, Si, Ge, Sn, and Pb): thermochemical data, J. Organomet. Chem., 1971, 29, 195. [all data]

Mochida, Worley, et al., 1985
Mochida, K.; Worley, S.; Kochi, J., UV photoelectron spectra of peralkylated catenates of Group 4B elements (silicon, germanium, and tin), Bull. Chem. Soc. Jpn., 1985, 58, 3389. [all data]

Yergey and Lampe, 1968
Yergey, A.L.; Lampe, F.W., An electron impact study of ionization and dissociation of trimethylstannanes, J. Organometal. Chem., 1968, 15, 339. [all data]

Pitt, Bursey, et al., 1970
Pitt, C.G.; Bursey, M.M.; Rogerson, P.F., Catenates of the group IV elements. Correlation of σ electron energies, J. Am. Chem. Soc., 1970, 92, 519. [all data]


Notes

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