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CH3O+ (structure unspecified)

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.

Reactions leading to CH3O+ (ion structure unspecified)

Precursor AP (eV) Other Products Method Reference Comment
CH3NO211.0 ± 0.2NOEIBurgers and Holmes, 1984 
CH3NO210.82 ± 0.05NOEIBurgers and Holmes, 1984 
CH3NO210.69 ± 0.03NOPIPECOGilman, Hsieh, et al., 1983 
CH3NO210.69NOPIPECOGilman, Hsieh, et al., 1983, 2 
CH3NO210.96NOEIHaney and Franklin, 1969 
CH4O11.67 ± 0.09HEIBowen and Maccoll, 1984 
CH4O10.4HEIMishchanchuk, Pokrovskii, et al., 1982 
CH4O11.85 ± 0.08HEIAllam, Migahed, et al., 1982 
CH4O11.88 ± 0.05HEISelim and Helal, 1981 
CH4O11.69HEILossing, 1977 
CH4O11.76 ± 0.11HEIFinney and Harrison, 1972 
CH4O11.55 ± 0.03HPIWarneck, 1971 
CH4O11.66 ± 0.04HPIOmura, Kaneko, et al., 1969 
CH4O11.67HEILifshitz, Shapiro, et al., 1969 
CH4O11.67 ± 0.03HPIRefaey and Chupka, 1968 
CH4O11.649 ± 0.003HPIBerkowitz, Ellison, et al., 1994Ion is CH2OH+; Unpublished results of B. Ruscic and J. Berkowitz
C2H3Br3O11.10CBr3EIHolmes and Lossing, 1988 
C2H3ClO211.42 ± 0.05COClEIHolmes and Lossing, 1984 
C2H3Cl3O11.00CCl3EIHolmes and Lossing, 1988 
C2H4Br2O11.16CHBr2EIHolmes and Lossing, 1988 
C2H4Cl2O11.08CHCl2EIHolmes and Lossing, 1988 
C2H4O212.23CHOEIHaney and Franklin, 1969 
C2H4O210.86 ± 0.05HCOEIHolmes and Lossing, 1984 
C2H4O212.05 ± 0.10CHOEISelim and Helal, 1981 
C2H5BrO11.34CH2BrEIHolmes and Lossing, 1988 
C2H5BrO11.34 ± 0.05CH2BrEIHolmes and Lossing, 1984 
C2H5BrO11.314 ± 0.005CH2BrPIRuscic and Berkowitz, 1994T = 0K; Ion is CH2OH+
C2H5ClO11.16CH2ClEIHolmes and Lossing, 1988 
C2H5ClO11.16 ± 0.05CH2ClEIHolmes and Lossing, 1984 
C2H5ClO11.5 ± 0.1?EIHarrison and Shannon, 1962 
C2H5IO11.36CH2IEIHolmes and Lossing, 1988 
C2H5IO11.36 ± 0.05CH2IEIHolmes and Lossing, 1984 
C2H6O<=11.85 ± 0.10CH3PIPECOButler, Holland, et al., 1984T = 298K
C2H6O<=11.8CH3EILossing, 1977 
C2H6O12.4 ± 0.1CH3EIIvko, 1970 
C2H6O11.95 ± 0.05CH3EIHaney and Franklin, 1969 
C2H6O11.25 ± 0.09CH3EIBowen and Maccoll, 1984 
C2H6O11.40 ± 0.06CH3EISelim and Helal, 1981 
C2H6O11.30CH3EILossing, 1977 
C2H6O11.20 ± 0.05CH3PIPotapov and Sorokin, 1972 
C2H6O11.25CH3PIRefaey and Chupka, 1968 
C2H6OS13.82 ± 0.16?PIPECOZha, Nishimura, et al., 1988 
C2H6OS12.2?EIAmos, Gillis, et al., 1969 
C2H6O211.12 ± 0.05CH2OHEIHolmes and Lossing, 1984 
C2H6O212.5 ± 0.15CH2O+HEIHolmes, Lossing, et al., 1983 
C3H5BrO12.5 ± 0.2?EIWada and Kiser, 1962 
C3H5ClO13.4 ± 0.2?EIWada and Kiser, 1962 
C3H5NO10.84 ± 0.02C2H2NEIHolmes, Lossing, et al., 1993 
C3H6O13.3 ± 0.2?EIGallegos and Kiser, 1962 
C3H6O13.4 ± 0.2?EIGallegos and Kiser, 1961 
C3H6O211.89 ± 0.07CH3+COPIPECOZha, Nishimura, et al., 1992 
C3H6O212.0 ± 0.1?EIVanRaalte and Harrison, 1963 
C3H6O212.4C2H3OEIArakawa, 1991 
C3H6O212.52 ± 0.10?EIBrion and Dunning, 1963 
C3H6O311.49 ± 0.05?EIKumakura, Sugiura, et al., 1968 
C3H6O310.96 ± 0.05C2H3O2EISuh, Kingsmill, et al., 1995Unpublished result of F.P.Lossing
C3H6O310.82 ± 0.05C2H3O2EISuh, Kingsmill, et al., 1995Unpublished result of F.P.Lossing
C3H7BrO11.18BrCH2CH2EIHolmes and Lossing, 1988 
C3H7ClO11.20ClCH2CH2EIHolmes and Lossing, 1988 
C3H7ClO11.19ClCHCH3EIHolmes and Lossing, 1988 
C3H8O<=11.7C2H5EILossing, 1977 
C3H8O12.9 ± 0.1C2H5EIIvko, 1970 
C3H8O12.50C2H5EIHaney and Franklin, 1969 
C3H8O12.5?EIFriedman, Long, et al., 1957 
C3H8O11.20C2H5EIHolmes, Lossing, et al., 1988 
C3H8O12.3 ± 0.9C2H5EIBowen and Maccoll, 1984 
C3H8O11.50 ± 0.08C2H3EISelim and Helal, 1981 
C3H8O11.16 ± 0.03C2H5EIJohnstone and Mellon, 1972 
C3H8O~11.3C2H5PIRefaey and Chupka, 1968 
C3H8O~11.11C2H5PIChupka, 1959 
C3H9BO312.7 ± 0.2?EIWada and Kiser, 1964 
C3H9O3P13.8 ± 0.2?EIBafus, Gallegos, et al., 1966 
C3H9O4P17.3 ± 0.4?EIBafus, Gallegos, et al., 1966 
C4H6O13.3 ± 0.5?EIWada and Kiser, 1962 
C4H8O211.10 ± 0.05C2H5+COEISelim and Helal, 1981 
C4H8O211.9 ± 0.3?CEMSJalonen, Tedder, et al., 1980 
C4H8O211.35 ± 0.10C3H5OPIPECOFraser-Monteiro, Fraser-Monteiro, et al., 1982T = 298K
C4H8O213.5 ± 0.1?EIVanRaalte and Harrison, 1963 
C4H8O213.9 ± 0.4?EIWada and Kiser, 1962 
C4H10O12.28 ± 0.05C2H4+CH3EISelim and Helal, 1981 
C4H10O11.92?EIHolmes, Rye, et al., 1979 
C4H10O12.1?EIHarrison, Ivko, et al., 1966 
C4H10O11.36 ± 0.06n-C3H7EISelim and Helal, 1981 
C4H10O11.46?EILambdin, Tuffly, et al., 1959 
C4H10O12.2 ± 0.1C2H4+CH3EIBurgers and Holmes, 1982 
C4H10O12.40?EIHolmes, Rye, et al., 1979 
C4H10O12.5?EIHarrison, Ivko, et al., 1966 
C4H10O212.0 ± 0.1C2H3O+CH4EISirois, George, et al., 1994 
C10H18N2O614.20?EIDay, Gowenlock, et al., 1978 


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.

Burgers and Holmes, 1984
Burgers, P.C.; Holmes, J.L., The generation of triplet methoxy cations, Org. Mass Spectrom., 1984, 19, 452. [all data]

Gilman, Hsieh, et al., 1983
Gilman, J.P.; Hsieh, T.; Meisels, G.G., The unimolecular decomposition rates of energy selected methylnitrite and deuterated methylnitrite ions, J. Chem. Phys., 1983, 78, 3767. [all data]

Gilman, Hsieh, et al., 1983, 2
Gilman, J.P.; Hsieh, T.; Meisels, G.G., Competition between isomerization and fragmentation of gaseous ions. II. Nitromethane and methylnitrite ions, J. Chem. Phys., 1983, 78, 1174. [all data]

Haney and Franklin, 1969
Haney, M.A.; Franklin, J.L., Excess energies in mass spectra of some oxygen-containing organic compounds, J. Chem. Soc. Faraday Trans., 1969, 65, 1794. [all data]

Bowen and Maccoll, 1984
Bowen, R.D.; Maccoll, A., Low energy, low temperature mass spectra, Org. Mass Spectrom., 1984, 19, 379. [all data]

Mishchanchuk, Pokrovskii, et al., 1982
Mishchanchuk, B.G.; Pokrovskii, V.A.; Shabel'nikov, V.P.; Korol, E.N., Mass spectrometric study of energy characteristics of methanol and ethanol ions during ionization by a strong electric field, Teor. Eksp. Khim., 1982, 18, 307. [all data]

Allam, Migahed, et al., 1982
Allam, S.H.; Migahed, M.D.; El-Khodary, A., Electron impact ionization and dissociation of deuterated and non-deuterated methanol, methyl cyanide, nitromethane and nitrobenzene, Egypt. J. Phys., 1982, 13, 167. [all data]

Selim and Helal, 1981
Selim, E.T.M.; Helal, A.I., Heat of formation of CH2=OH+ fragment ion, Indian J. Pure Appl. Phys., 1981, 19, 977. [all data]

Lossing, 1977
Lossing, F.P., Heats of formation of some isomeric [CnH2n+1]+ ions. Substitutional effects on ion stability, J. Am. Chem. Soc., 1977, 99, 7526. [all data]

Finney and Harrison, 1972
Finney, C.D.; Harrison, A.G., A third-derivative method for determining electron-impact onset potentials, Int. J. Mass Spectrom. Ion Phys., 1972, 9, 221. [all data]

Warneck, 1971
Warneck, P., Photoionisation von methanol und formaldehyd, Z. Naturforsch. A:, 1971, 26, 2047. [all data]

Omura, Kaneko, et al., 1969
Omura, I.; Kaneko, T.; Yamada, Y.; Tanaka, K., Mass spectrometric studies of photoionization. V. Methanol and methanol-d, J. Phys. Soc. Japan, 1969, 27, 981. [all data]

Lifshitz, Shapiro, et al., 1969
Lifshitz, C.; Shapiro, M.; Sternberg, R., Isotopic effects on metastable transitions. IV. Isotopic methanols, Israel J. Chem., 1969, 7, 391. [all data]

Refaey and Chupka, 1968
Refaey, K.M.A.; Chupka, W.A., Photoionization of the lower aliphatic alcohols with mass analysis, J. Chem. Phys., 1968, 48, 5205. [all data]

Berkowitz, Ellison, et al., 1994
Berkowitz, J.; Ellison, G.B.; Gutman, D., Three methods to measure RH bond energies, J. Phys. Chem., 1994, 98, 2744. [all data]

Holmes and Lossing, 1988
Holmes, J.L.; Lossing, F.P., Heats of formation and bond dissociation energies in halogen-substituted methyl and ethyl radicals, J. Am. Chem. Soc., 1988, 110, 7343. [all data]

Holmes and Lossing, 1984
Holmes, J.L.; Lossing, F.P., Heats of formation of organic radicals from appearance energies, Int. J. Mass Spectrom. Ion Processes, 1984, 58, 113. [all data]

Ruscic and Berkowitz, 1994
Ruscic, B.; Berkowitz, J., The heats of formation of some C2H5O+ isomers, relevant bond energies in ethanol and PA(CH3CHO), J. Chem. Phys., 1994, 101, 10936. [all data]

Harrison and Shannon, 1962
Harrison, A.G.; Shannon, T.W., An electron impact study of chloromethyl and dichloromethyl derivatives, Can. J. Chem., 1962, 40, 1730. [all data]

Butler, Holland, et al., 1984
Butler, J.J.; Holland, D.M.P.; Parr, A.C.; Stockbauer, R., A threshold photoelectron-photoion coincidence spectrometric study of dimethyl ether (CH3OCH3), Int. J. Mass Spectrom. Ion Processes, 1984, 58, 1. [all data]

Ivko, 1970
Ivko, A.A., Use of mass spectroscopy and isotope labelling for determining the structure of ions and molecules, Org. Katal., 1970, 20. [all data]

Potapov and Sorokin, 1972
Potapov, V.K.; Sorokin, V.V., Kinetic energies of products of dissociative photoionization of molecules. I. Aliphatic ketones and alcohols, Khim. Vys. Energ., 1972, 6, 387. [all data]

Zha, Nishimura, et al., 1988
Zha, Q.; Nishimura, T.; Meisels, G.G., Unimolecular dissociation of energy-selected dimethyl sulfoxide, Int. J. Mass Spectrom. Ion Processes, 1988, 83, 1. [all data]

Amos, Gillis, et al., 1969
Amos, D.; Gillis, R.G.; Occolowitz, J.L.; Pisani, J.F., The ions [CH3S]+, [C2H5S]+ and [CH3O]+ formed by electron-impact, Org. Mass Spectrom., 1969, 2, 209. [all data]

Holmes, Lossing, et al., 1983
Holmes, J.L.; Lossing, F.P.; Terlouw, J.K.; Burgers, P.C., Novel gas-phase ions. The radical cations [CH2XH]+. (X = F, Cl, Br, I, OH, NH2, SH) and [CH2CH2NH3]+., Can. J. Chem., 1983, 61, 2305. [all data]

Wada and Kiser, 1962
Wada, Y.; Kiser, R.W., Electron impact spectroscopy of some substituted oxiranes, J. Phys. Chem., 1962, 66, 1652. [all data]

Holmes, Lossing, et al., 1993
Holmes, J.L.; Lossing, F.P.; Mayer, P.M., The effects of methyl substitution on the structure and thermochemistry of the cyanomethyl radical and cation, Chem. Phys. Lett., 1993, 212, 134. [all data]

Gallegos and Kiser, 1962
Gallegos, E.J.; Kiser, R.W., Electron impact spectroscopy of the four- and five-membered, saturated heterocyclic compounds containing nitrogen, oxygen and sulfur, J. Phys. Chem., 1962, 66, 136. [all data]

Gallegos and Kiser, 1961
Gallegos, E.J.; Kiser, R.W., Electron impact spectroscopy of ethylene oxide and propylene oxide, J. Am. Chem. Soc., 1961, 83, 773. [all data]

Zha, Nishimura, et al., 1992
Zha, Q.; Nishimura, T.; Meisels, G.G., Unimolecular dissociation of energy-selected ethyl formate ions, Int. J. Mass Spectrom. Ion Processes, 1992, 120, 85. [all data]

VanRaalte and Harrison, 1963
VanRaalte, D.; Harrison, A.G., Ionization and dissociation of formate esters by electron impact, Can. J. Chem., 1963, 41, 2054. [all data]

Arakawa, 1991
Arakawa, R., Mass spectral study of ionized-hydroxyacetone dissociation, Bull. Chem. Soc. Jpn., 1991, 64, 1022. [all data]

Brion and Dunning, 1963
Brion, C.E.; Dunning, W.J., Electron impact studies of simple carboxylic esters, J. Chem. Soc. Faraday Trans., 1963, 59, 647. [all data]

Kumakura, Sugiura, et al., 1968
Kumakura, M.; Sugiura, T.; Okamura, S., Characteristics of RPD ion source of time-of-flight mass spectrometer, and measurement of the ionization potential and the appearance potentials of trioxymethylene, Mass Spectry. (Tokyo), 1968, 16, 16. [all data]

Suh, Kingsmill, et al., 1995
Suh, D.; Kingsmill, C.A.; Ruttink, P.J.A.; Burgers, P.C.; Terlouw, J.K., C-H...O and O...H...O bonded intermediates in the dissociation of low energy methyl glycolate radical cations, Int. J. Mass Spectrom. Ion Processes, 1995, 146/147, 305. [all data]

Friedman, Long, et al., 1957
Friedman, L.; Long, F.A.; Wolfsberg, M., Study of the mass spectra of the lower aliphatic alcohols, J. Chem. Phys., 1957, 27, 613. [all data]

Holmes, Lossing, et al., 1988
Holmes, J.L.; Lossing, F.P.; Maccoll, A., Heats of formation of alkyl radicals from appearance energies, J. Am. Chem. Soc., 1988, 110, 7339. [all data]

Johnstone and Mellon, 1972
Johnstone, R.A.W.; Mellon, F.A., Electron-impact ionization and appearance potentials, J. Chem. Soc. Faraday Trans. 2, 1972, 68, 1209. [all data]

Chupka, 1959
Chupka, W.A., Effect of unimolecular decay kinetics on the interpretation of appearance potentials, J. Chem. Phys., 1959, 30, 191. [all data]

Wada and Kiser, 1964
Wada, Y.; Kiser, R.W., A mass spectrometric study of trimethyl borate, J. Phys. Chem., 1964, 68, 1588. [all data]

Bafus, Gallegos, et al., 1966
Bafus, D.A.; Gallegos, E.J.; Kiser, R.W., An electron impact investigation of some alkyl phosphate esters, J. Phys. Chem., 1966, 70, 2614. [all data]

Jalonen, Tedder, et al., 1980
Jalonen, J.; Tedder, J.M.; Nidaud, P.H., Charge-exchange mass spectra of ethyl acetate, methyl proprionate and propyl formate, J. Chem. Soc. Faraday Trans. 2, 1980, 76, 1450. [all data]

Fraser-Monteiro, Fraser-Monteiro, et al., 1982
Fraser-Monteiro, M.L.; Fraser-Monteiro, L.; Butler, J.J.; Baer, T.; Hass, J.R., Thermochemistry and dissociation dynamics of state-selected C4H8O2+ ions. 1. 1,4-Dioxane, J. Phys. Chem., 1982, 86, 739. [all data]

Holmes, Rye, et al., 1979
Holmes, J.L.; Rye, R.T.B.; Terlouw, J.K., On the loss of ethylene from [C3H7O]+ ions of structure CH3CH2CHOH, Org. Mass Spectrom., 1979, 14, 606. [all data]

Harrison, Ivko, et al., 1966
Harrison, A.G.; Ivko, A.; Van Raalte, D., Energetics of formation of some oxygenated ions and the proton affinities of carbonyl compounds, Can. J. Chem., 1966, 44, 1625. [all data]

Lambdin, Tuffly, et al., 1959
Lambdin, W.J.; Tuffly, B.L.; Yarborough, V.A., Appearance potentials as obtained with an analytical mass spectrometer, Appl. Spectry., 1959, 13, 71. [all data]

Burgers and Holmes, 1982
Burgers, P.C.; Holmes, J.L., Metastable ion studies. XIII. The measurement of appearance energies of metastable peaks, Org. Mass Spectrom., 1982, 17, 123. [all data]

Sirois, George, et al., 1994
Sirois, M.; George, M.; Holmes, J.L., Neutral counterparts of the C2H7O+ isomers, Org. Mass Spectrom., 1994, 29, 11. [all data]

Day, Gowenlock, et al., 1978
Day, J.S.; Gowenlock, B.G.; Johnson, C.A.F.; McInally, I.D.; Pfab, J., Appearance potential studies of some geminal substituted C-nitroso- compounds, J. Chem. Soc. Perkin Trans. 2, 1978, 10, 1110. [all data]


Go To: Top, Gas phase ion energetics data, References