Mercury, dimethyl-

• Formula: C₂H₆Hg
• Molecular weight: 230.66
• IUPAC Standard InChI: InChI=1S/2CH3.Hg/h2*1H3; Copy

  
• IUPAC Standard InChIKey: ATZBPOVXVPIOMR-UHFFFAOYSA-N Copy
• CAS Registry Number: 593-74-8
• Chemical structure:
  This structure is also available as a 2d Mol file
• Other names: Dimethylmercury; (CH3)2Hg
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Mass spectrum (electron ionization)
  • Vibrational and/or electronic energy levels
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
• Options:
  • Switch to calorie-based units

Reaction thermochemistry data

Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, References, Notes

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

 (g) = CH₃Hg (g) +  (g)

By formula: C₂H₆Hg (g) = CH₃Hg (g) + CH₄ (g)

 (l) + 2 (cr) = 2 (l) +  (cr)

By formula: C₂H₆Hg (l) + 2I₂ (cr) = 2CH₃I (l) + HgI₂ (cr)

 (l) + 2 (l) = 2 (g) +  (cr)

By formula: C₂H₆Hg (l) + 2Br₂ (l) = 2CH₃Br (g) + Br₂Hg (cr)

 (l) + Cl₂Hg (cr) = 2 (cr)

By formula: C₂H₆Hg (l) + Cl₂Hg (cr) = 2CH₃ClHg (cr)

 (l) +  (cr) = 2 (cr)

By formula: C₂H₆Hg (l) + Br₂Hg (cr) = 2CH₃BrHg (cr)

 (l) +  (cr) = 2 (cr)

By formula: C₂H₆Hg (l) + HgI₂ (cr) = 2CH₃HgI (cr)

Gas phase ion energetics data

Go To: Top, Reaction thermochemistry data, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, References, Notes

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

Ionization energy determinations

Appearance energy determinations

Mass spectrum (electron ionization)

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, References, Notes

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

Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.

For Zoom

1.) Enter the desired X axis range (e.g., 100, 200)

2.) Check here for automatic Y scaling

3.) Press here to zoom

Additional Data

Vibrational and/or electronic energy levels

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Takehiko Shimanouchi

Symmetry:   D_3h'(G⁺₃₆)     Symmetry Number σ = 6

Source: Shimanouchi, 1972

Notes

References

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Jackson, 1989
Jackson, R.L., Chem. Phys. Lett., 1989, 163, 315. [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]

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]

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]

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]

Shimanouchi, 1972
Shimanouchi, T., Tables of Molecular Vibrational Frequencies Consolidated Volume II, J. Phys. Chem. Ref. Data, 1972, 6, 3, 993-1102. [all data]

Notes

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, References

• Symbols used in this document:
  

  AE	Appearance energy
  ΔrH°	Enthalpy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
• The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
• Customer support for NIST Standard Reference Data products.