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Ethene, methoxy-

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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
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to C3H6O+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)8.95 ± 0.01eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)859.2kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity830.3kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
8.96PEPlanckaert, Doucet, et al., 1974LLK
8.95PEMines and Thompson, 1973LLK
8.93 ± 0.02PIWatanabe, Nakayama, et al., 1962RDSH
9.05PEBock, Wagner, et al., 1974Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C2H3O+11.44CH3EIBernecker and Long, 1961RDSH

De-protonation reactions

C3H5O- + Hydrogen cation = Ethene, methoxy-

By formula: C3H5O- + H+ = C3H6O

Quantity Value Units Method Reference Comment
Deltar1720. ± 50.kJ/molCIDTGraul and Squires, 1990gas phase; B
Quantity Value Units Method Reference Comment
Deltar1690. ± 50.kJ/molH-TSGraul and Squires, 1990gas phase; B

References

Go To: Top, 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.

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]

Planckaert, Doucet, et al., 1974
Planckaert, A.A.; Doucet, J.; Sandorfy, C., Comparative study of the vacuum ultraviolet absorption and photoelectron spectra of some simple ethers and thioethers, J. Chem. Phys., 1974, 60, 4846. [all data]

Mines and Thompson, 1973
Mines, G.W.; Thompson, H.W., Photoelectron spectra of vinyl and allyl halides, Spectrochim. Acta Part A, 1973, 29, 1377. [all data]

Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J., Ionization potentials of some molecules, J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]

Bock, Wagner, et al., 1974
Bock, H.; Wagner, G.; Wittel, K.; Sauer, J.; Seebach, D., Photoelektronenspektren und molekuleigenschaften. XXXII. n/«pi»-konjugation in heterosubstituierten athylenen, Chem. Ber., 1974, 107, 1869. [all data]

Bernecker and Long, 1961
Bernecker, R.R.; Long, F., Some organic positive ions and their parent radicals and molecules, J. Phys. Chem., 1961, 65, 1565. [all data]

Graul and Squires, 1990
Graul, S.T.; Squires, R.R., Gas-Phase Acidities Derived from Threshold Energies for Activated Reactions, J. Am. Chem. Soc., 1990, 112, 7, 2517, https://doi.org/10.1021/ja00163a007 . [all data]


Notes

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