Dimethylzinc

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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
Δfliquid6.0 ± 1.4kcal/molReviewMartinho SimõesMS
Δfliquid5.38 ± 0.31kcal/molReviewMartinho SimõesMS
Quantity Value Units Method Reference Comment
Δcliquid-482.8 ± 1.4kcal/molCC-SBLong and Norrish, 1949Please also see Cox and Pilcher, 1970.; MS
Quantity Value Units Method Reference Comment
liquid48.18cal/mol*KN/ASheiman, Nistratov, et al., 1984DH

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
30.88298.15Sheiman, Nistratov, et al., 1984T = 5 to 300 K.; DH

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
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Ttriple230.13KN/ASheiman, Nistratov, et al., 1984, 2Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC
Quantity Value Units Method Reference Comment
Δvap7.27 ± 0.05kcal/molCC-SBSokolovskii and Baev, 1984Another value for the enthalpy of vaporization has been reported: 7.05 ± 0.1 kcal/mol Long and Cattanach, 1961.; MS

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
7.27 ± 0.02273. to 313.N/ABaev, 1997AC
7.15283.BGBamford, Levi, et al., 1946Based on data from 248. to 318. K.; AC

Enthalpy of fusion

ΔfusH (kcal/mol) Temperature (K) Reference Comment
1.63230.1Domalski and Hearing, 1996AC

Entropy of fusion

ΔfusS (cal/mol*K) Temperature (K) Reference Comment
1.21210.3Domalski and Hearing, 1996CAL
7.094230.1

Enthalpy of phase transition

ΔHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
0.2536210.26crystaline, IIcrystaline, ISheiman, Nistratov, et al., 1984DH
1.632230.13crystaline, IliquidSheiman, Nistratov, et al., 1984DH

Entropy of phase transition

ΔStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
1.21210.26crystaline, IIcrystaline, ISheiman, Nistratov, et al., 1984DH
7.091230.13crystaline, IliquidSheiman, Nistratov, et al., 1984DH

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:


References

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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]

Long and Norrish, 1949
Long, L.H.; Norrish, R.G.W., Phil. Trans. Roy. Soc. (London), 1949, A241, 587. [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]

Sheiman, Nistratov, et al., 1984
Sheiman, M.S.; Nistratov, V.P.; Kamelova, G.P.; Rabinovich, I.B., Low-temperature heat capacity of organic compounds of aluminum and zinc, Probl. Kalorim. Khim. Termodin., Dokl. Vses. Konf., 10th, 1984, 2, 457-459. [all data]

Sheiman, Nistratov, et al., 1984, 2
Sheiman, M.S.; Nistratov, V.P.; Kamelova, G.P.; Rabinovich, I.B., Low-temperature heat capacity of organic compounds of aluminum and zinc in Probl. Kalorim. Khim. Termodin., Dokl. Vses. Konf., 10th, Akad. Nauk SSSS Inst. Khim. Fiz.: Chernogolovka, USSR, Vol. 2 2, 1984. [all data]

Sokolovskii and Baev, 1984
Sokolovskii, A.E.; Baev, A.K., Zh. Obshch. Khim., 1984, 54, 103. [all data]

Long and Cattanach, 1961
Long, L.H.; Cattanach, J., J. Inorg. Nucl. Chem., 1961, 20, 340. [all data]

Baev, 1997
Baev, A.K., Thermodynamic study of structural changes in solutions of dimethyl-zinc with methyl compounds of Group VIB elements, Zh. Neorg. Khim., 1997, 42, 4, 662. [all data]

Bamford, Levi, et al., 1946
Bamford, C.H.; Levi, D.L.; Newitt, D.M., 91. Physical and chemical properties of organo-metallic compounds. Part I. The vapour pressures and freezing points of simple metal alkyls of Groups II, III, and V, J. Chem. Soc., 1946, 468, https://doi.org/10.1039/jr9460000468 . [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]


Notes

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