Dimethylzinc

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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
Δfgas55.4 ± 5.9kJ/molReviewMartinho Simões 
Δfgas52.9 ± 1.3kJ/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
Δfliquid25.0 ± 5.9kJ/molReviewMartinho SimõesMS
Δfliquid22.5 ± 1.3kJ/molReviewMartinho SimõesMS
Quantity Value Units Method Reference Comment
Δcliquid-2020.0 ± 5.9kJ/molCC-SBLong and Norrish, 1949Please also see Cox and Pilcher, 1970.; MS
Quantity Value Units Method Reference Comment
liquid201.6J/mol*KN/ASheiman, Nistratov, et al., 1984DH

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
129.2298.15Sheiman, Nistratov, et al., 1984T = 5 to 300 K.; DH

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
9.00 ± 0.02PIDistefano and Dibeler, 1970RDSH
8.86 ± 0.15EIWinters and Kiser, 1967RDSH
9.4PECreber and Bancroft, 1980Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CH3+15.1 ± 0.5?EIWinters and Kiser, 1967RDSH
CH3Zn+10.22 ± 0.02CH3PIDistefano and Dibeler, 1970RDSH
CH3Zn+11.2 ± 0.2CH3EIWinters and Kiser, 1967RDSH
ZnH+13.9 ± 0.4?EIWinters and Kiser, 1967RDSH
Zn+13.13 ± 0.022CH3PIDistefano and Dibeler, 1970RDSH
Zn+13.4 ± 0.32CH3EIWinters and Kiser, 1967RDSH

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Gas phase ion energetics 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]

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]

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]

Winters and Kiser, 1967
Winters, R.E.; Kiser, R.W., Ionization and fragmentation of dimethylzinc, trimethylaluminum, and trimethylantimony, J. Organometal. Chem., 1967, 10, 7. [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]


Notes

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