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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
Deltafgas136.1 ± 4.4kJ/molReviewMartinho SimõesSelected data
Deltafgas167.6 ± 3.3kJ/molReviewMartinho Simões 
Deltafgas14. ± 13.kJ/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
Deltafliquid98.1 ± 4.4kJ/molReviewMartinho SimõesSelected data; MS
Deltafliquid129.6 ± 3.3kJ/molReviewMartinho SimõesMS
Deltafliquid-25. ± 13.kJ/molReviewMartinho SimõesThe enthalpy of formation of Pb(Me)4(l) is calculated as -3. ± 13. kJ/mol by assuming that PbO(cr, yellow) is the product oxide.; MS
Quantity Value Units Method Reference Comment
Deltacliquid-3711.2 ± 1.3kJ/molCC-RBGood, Scott, et al., 1959Please also see Pedley and Rylance, 1977 and Cox and Pilcher, 1970.; MS
Deltacliquid-3636.7 ± 3.2kJ/molCC-SBChlupacek, 1953MS
Deltacliquid-3505. ± 13.kJ/molCC-SBLippincott and Tobin, 1953MS
Quantity Value Units Method Reference Comment
liquid319.99J/mol*KN/AGood, Scott, et al., 1959, 2DH

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
202.5298.15Good, Scott, et al., 1959, 2DH

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

Quantity Value Units Method Reference Comment
Tfus242.92KN/AStaveley, Warren, et al., 1954Uncertainty assigned by TRC = 0.1 K; TRC
Quantity Value Units Method Reference Comment
Deltavap38.0 ± 0.4kJ/molCC-RBAbraham and Irving, 1980MS

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Reference Comment
35.7303.Tanaka and Nagai, 1929Based on data from 298. - 308. K.; AC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
273. - 333.4.142591376.726-50.129Good, Douslin, et al., 1959Coefficents calculated by NIST from author's data.

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
10.799242.92Staveley, Warren, et al., 1954, 2DH
10.8242.9Domalski and Hearing, 1996AC

Entropy of fusion

DeltafusS (J/mol*K) Temperature (K) Reference Comment
44.43242.92Staveley, Warren, et al., 1954, 2DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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
Deltar230. - 243.kJ/molN/ASmith and Patrick, 1983 
Deltar239. ± 17.kJ/molN/AMcMillen and Golden, 1982 

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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV) Method Reference Comment
8.50 ± 0.04PEJonas, Schweitzer, et al., 1973LLK
8.8 ± 0.1PEEvans, Green, et al., 1972LLK
8.26 ± 0.17EILappert, Pedley, et al., 1971LLK
9.3EIdeRidder and Dijkstra, 1967RDSH
8.0 ± 0.4EIHobrock and Kiser, 1961RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CH3Pb+13.1?EIdeRidder and Dijkstra, 1967RDSH
CH3Pb+12.4 ± 0.2?EIHobrock and Kiser, 1961RDSH
C2H6Pb+12.7?EIdeRidder and Dijkstra, 1967RDSH
C2H6Pb+11.6 ± 0.2?EIHobrock and Kiser, 1961RDSH
C3H9Pb+8.77 ± 0.16CH3EILappert, Pedley, et al., 1971LLK
C3H9Pb+10.1CH3EIdeRidder and Dijkstra, 1967RDSH
C3H9Pb+8.9 ± 0.1CH3EIHobrock and Kiser, 1961RDSH
PbH+15.3?EIdeRidder and Dijkstra, 1967RDSH
Pb+14.4?EIdeRidder and Dijkstra, 1967RDSH

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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Mass 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 API 0698
NIST MS number 13031

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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), NIST Free Links, 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]

Staveley, Warren, et al., 1954
Staveley, L.A.K.; Warren, J.B.; Paget, H.P.; Dowrick, D.J., Some Thermodynamic Properties of Compounds of the Formula MX4 II. Tetraalkyl Compounds, J. Chem. Soc., 1954, 1954, 1992. [all data]

Abraham and Irving, 1980
Abraham, M.H.; Irving, R.J., J. Chem. Thermodyn., 1980, 12, 539. [all data]

Tanaka and Nagai, 1929
Tanaka, Y.; Nagai, Y., Proc. Imp. Acad. (Tokyo), 1929, 5, 78. [all data]

Good, Douslin, et al., 1959
Good, W.D.; Douslin, D.R.; Scott, D.W.; George, A.; Lacina, J.L.; Dawson, J.P.; Waddington, G., Thermochemistry and vapor pressure of aliphatic fluorocarbons. A comparison of the C-F and C-H thermochemical bond energies, J. Phys. Chem., 1959, 63, 1133-1138. [all data]

Staveley, Warren, et al., 1954, 2
Staveley, L.A.K.; Warren, J.B.; Paget, H.P.; Dowrick, D.J., Some thermodynamic properties of compounds of the formula MX4. Part II. Tetra-alkyl compounds, 1954, J. [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]

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]

Jonas, Schweitzer, et al., 1973
Jonas, A.E.; Schweitzer, G.K.; Grimm, F.A.; Carlson, T.A., The photoelectron spectra of the tetrafluoro and tetramethyl compounds of the group IV elements, J. Electron Spectrosc. Relat. Phenom., 1973, 1, 29. [all data]

Evans, Green, et al., 1972
Evans, S.; Green, J.C.; Joachim, P.J.; Orchard, A.F.; Turner, D.W.; Maier, J.P., Electronic structures of the Group IVB tetramethyls by helium-(I) photoelectron spectroscopy, J. Chem. Soc. Faraday Trans. 2, 1972, 68, 905. [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]

deRidder and Dijkstra, 1967
deRidder, J.J.; Dijkstra, G., Mass spectra of the tetramethyl and tetraethyl compounds of carbon, silicon, germanium, tin and lead, Rec. Trav. Chim., 1967, 86, 737. [all data]

Hobrock and Kiser, 1961
Hobrock, B.G.; Kiser, R.W., Electron impact spectroscopy of tetramethylsilicon, -tin and -lead, J. Phys. Chem., 1961, 65, 2186. [all data]


Notes

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), NIST Free Links, References