Mercury, dimethyl-


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
Δfliquid61.8 ± 3.9kJ/molReviewMartinho Simões 
Δfliquid51.9 ± 2.1kJ/molReviewMartinho Simões 
Δfliquid57.8 ± 3.0kJ/molReviewMartinho SimõesSelected data. Average of the values from Carson, Carson, et al., 1952 and Hartley, Pritchard, et al., 1950.
Δfliquid59.8 ± 0.4kJ/molCC-SBCarson, Carson, et al., 1952Value corrected based on a set of ancillary data by J.A. Martinho Simões; Please also see Cox and Pilcher, 1970. The enthalpy of combustion is not reported in Carson, Carson, et al., 1952.
Quantity Value Units Method Reference Comment
Δfsolid162.2kJ/molReviewMartinho Simões 
Quantity Value Units Method Reference Comment
Δcsolid-1806.7kJ/molCC-SBBerthelot, 1899Please also see Berthelot, 1900.

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:
MS - José A. Martinho Simões
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Δvap34.6 ± 0.8kJ/molCC-SBLong and Cattanach, 1961MS
Quantity Value Units Method Reference Comment
Δsub34.6 ± 0.8kJ/molCC-SBLong and Cattanach, 1961MS

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Reference Comment
36.7 ± 0.1321.Baev, 2001Based on data from 275. to 367. K.; AC

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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

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

Quantity Value Units Method Reference Comment
Proton affinity (review)771.6kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity740.8kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
9.10 ± 0.05PIDistefano and Dibeler, 1970RDSH
9.3PECreber and Bancroft, 1980Vertical value; LLK
9.33PENugent, Wu, et al., 1976Vertical value; LLK
9.33PEFehlner, Ulman, et al., 1976Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CH3+12.55CH3+Hg?PIDistefano and Dibeler, 1970RDSH
CH3Hg+10.10 ± 0.02CH3PIDistefano and Dibeler, 1970RDSH
Hg+13.05 ± 0.022CH3PIDistefano and Dibeler, 1970RDSH

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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Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin NATIONAL BUREAU OF STANDARDS, WASHINGTON D.C., USA
NIST MS number 34446

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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]

Carson, Carson, et al., 1952
Carson, A.S.; Carson, E.M.; Wilmshurst, B., Nature, 1952, 170, 320. [all data]

Hartley, Pritchard, et al., 1950
Hartley, K.; Pritchard, H.O.; Skinner, H.A., Thermochemistry of metallic alkyls. III.?mercury dimethyl and mercury methyl halides, Trans. Faraday Soc., 1950, 46, 1019, https://doi.org/10.1039/tf9504601019 . [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]

Berthelot, 1899
Berthelot, M., Compt. Rend., 1899, 129, 918. [all data]

Berthelot, 1900
Berthelot, M., Ann. Chim. Phys., 1900, 20, 158. [all data]

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

Baev, 2001
Baev, A.K., Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol., 2001, 44, 1, 3. [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Distefano and Dibeler, 1970
Distefano, G.; Dibeler, V.H., Photoionization study of the dimethyl compounds of zinc, cadmium, and mercury, Intern. J. Mass Spectrom. Ion Phys., 1970, 4, 59. [all data]

Creber and Bancroft, 1980
Creber, D.K.; Bancroft, G.M., Photoelectron studies of dialkyl group 2B compounds: Ligand field splittings intensity variations with photon energy, Inorg. Chem., 1980, 19, 643. [all data]

Nugent, Wu, et al., 1976
Nugent, W.A.; Wu, M.M.-H.; Fehlner, T.P.; Kochi, J.K., Enhanced reactivity of exo-norbornyl derivatives. Evidence for σ-participation in the absence of steric effects, J. Chem. Soc., Chem. Commun., 1976, 456. [all data]

Fehlner, Ulman, et al., 1976
Fehlner, T.P.; Ulman, J.; Nugent, W.A.; Kochi, J.K., Effect of alkyl substituents on the first ionization potential and on 5d10 ionization in dialkylmercury compounds, Inorg. Chem., 1976, 15, 2544. [all data]


Notes

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