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Lead, tetramethyl-

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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

Quantity Value Units Method Reference Comment
Deltafgas32.5 ± 1.1kcal/molReviewMartinho SimõesSelected data
Deltafgas40.06 ± 0.79kcal/molReviewMartinho Simões 
Deltafgas3.2 ± 3.1kcal/molReviewMartinho 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 as indicated in comments:
MS - José A. Martinho Simões
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Deltafliquid23.4 ± 1.1kcal/molReviewMartinho SimõesSelected data; MS
Deltafliquid30.98 ± 0.79kcal/molReviewMartinho SimõesMS
Deltafliquid-5.9 ± 3.1kcal/molReviewMartinho SimõesThe enthalpy of formation of Pb(Me)4(l) is calculated as -0.6 ± 3.0 kcal/mol by assuming that PbO(cr, yellow) is the product oxide.; MS
Quantity Value Units Method Reference Comment
Deltacliquid-887.00 ± 0.31kcal/molCC-RBGood, Scott, et al., 1959Please also see Pedley and Rylance, 1977 and Cox and Pilcher, 1970.; MS
Deltacliquid-869.19 ± 0.76kcal/molCC-SBChlupacek, 1953MS
Deltacliquid-837.6 ± 3.0kcal/molCC-SBLippincott and Tobin, 1953MS
Quantity Value Units Method Reference Comment
liquid76.479cal/mol*KN/AGood, Scott, et al., 1959, 2DH

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
48.40298.15Good, Scott, et al., 1959, 2DH

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

Lead, tetramethyl- (g) = C3H9Pb (g) + Methane (g)

By formula: C4H12Pb (g) = C3H9Pb (g) + CH4 (g)

Quantity Value Units Method Reference Comment
Deltar55.0 - 58.1kcal/molN/ASmith and Patrick, 1983 
Deltar57.0 ± 4.0kcal/molN/AMcMillen and Golden, 1982 

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry 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]

Good, Scott, et al., 1959
Good, W.D.; Scott, D.W.; Lacina, J.L.; McCullough, J.P., J. Phys. Chem., 1959, 63, 1139. [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]

Chlupacek, 1953
Chlupacek, W., Chem. Tech., 1953, art 8. [all data]

Lippincott and Tobin, 1953
Lippincott, E.R.; Tobin, M.C., J. Am. Chem. Soc., 1953, 75, 4141. [all data]

Good, Scott, et al., 1959, 2
Good, W.D.; Scott, D.W.; Lacina, J.L.; McCullough, J.P., Tetramethyllead: heat of formation by rotating-bomb calorimetry, J. Phys. Chem., 1959, 63, 1139-1142. [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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