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CH2+ (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 CH2+ (ion structure unspecified)

Precursor AP (eV) Other Products Method Reference Comment
CH2Br217.1 ± 0.3?EIKaposi, Riedel, et al., 1976 
CH2Cl217.0Cl2EIHaney and Franklin, 1968 
CH2N211.0 ± 0.1N2EIPaulett and Ettinger, 1963 
CH2N212.3 ± 0.1N2EIPaulett and Ettinger, 1963 
CH315.09 ± 0.03HPIChupka and Lifshitz, 1968 
CH3BF216.9 ± 0.1?EISteele, Nichols, et al., 1962 
CH3Br14.7 ± 0.5HBrEIKaposi, Riedel, et al., 1976 
CH3Br14.7 ± 0.5HBrEIKaposi, Riedel, et al., 1975 
CH3Br14.9 ± 0.2HBrEITsuda and Hamill, 1964 
CH3Cl14.6 ± 0.2HClEITsuda and Hamill, 1964 
CH3I14.6 ± 0.2HIEITsuda and Hamill, 1964 
CH415.1 ± 0.4H2EIChatham, Hils, et al., 1984 
CH415.06 ± 0.02H2EIPlessis, Marmet, et al., 1983 
CH415.16 ± 0.02H2PIMcCulloh and Dibeler, 1976T = 0K
CH415.3H2EIMorrison and Traeger, 1973 
CH415.19 ± 0.02H2PIChupka, 1968 
CH415.16 ± 0.04H2PIDibeler, Krauss, et al., 1965 
CH4O14.05 ± 0.05H2OPIWarneck, 1971 
CH4O15.3H2OEIHaney and Franklin, 1968 
C2H219.74 ± 0.20CEILocht and Davister, 1995 
C2H219.40 ± 0.12CEIPlessis and Marmet, 1986 
C2H218.17 ± 0.09C-EIPlessis and Marmet, 1986 
C2H219.4 ± 0.1CPIHayaishi, Iwata, et al., 1982 
C2H220.5 ± 0.2?EISuzuki and Maeda, 1977 
C2H221.CEIFranklin and Munson, 1965 
C2H2D218.4?EISuzuki and Maeda, 1974 
C2H2F216.99 ± 0.02CF2PIReinke, Kraessig, et al., 1973 
C2H2F217.2 ± 0.1CF2EISyrvatka, Bel'ferman, et al., 1971 
C2H2F217.8CF2EILifshitz and Long, 1963 
C2H2O13.712 ± 0.008COPIMcCulloh and Dibeler, 1976T = 400K
C2H2O13.729 ± 0.008CODERMcCulloh and Dibeler, 1976T = 0K
C2H2O13.8 ± 0.2COEICollin and Locht, 1970 
C2H3F316.2 ± 0.3?EISteele and Stone, 1962 
C2H3N15.7HCNEIHaney and Franklin, 1968 
C2H3N14.94 ± 0.02HCNPIDibeler and Liston, 1968 
C2H417.82 ± 0.06CH2EIPlessis and Marmet, 1986, 2 
C2H418.04 ± 0.04CH2TEStockbauer and Inghram, 1975 
C2H418.4CH2EIMaeda, Suzuki, et al., 1974 
C2H418.05CH2PIChupka, Berkowitz, et al., 1969 
C2H419.2 ± 0.3?EIKusch, Hustrulid, et al., 1937 
C2H4O15.08 ± 0.09?PIKrassig, Reinke, et al., 1974 
C2H4O14.66 ± 0.09?PIKrassig, Reinke, et al., 1974 
C2H4O16.5 ± 0.4?EIGallegos and Kiser, 1961 
C2H4O219.8?EIKing and Long, 1958 
C2H4S20.4 ± 0.5?EIGallegos and Kiser, 1961, 2 
C2H625. ± 1.?PIAu, Cooper, et al., 1993 
C2H614.69 ± 0.05CH4EIPlessis and Marmet, 1987 
C2H617. ± 2.?EIChatham, Hils, et al., 1984 
C2H617.3 ± 0.15?EISuzuki and Maeda, 1977, 2 
C2H6OS15.5 ± 0.3?EIBlais, Cottin, et al., 1970 
C3H5BrO21.4 ± 0.5?EIWada and Kiser, 1962 
C3H5ClO21.6 ± 0.5?EIWada and Kiser, 1962 
C3H617.0 ± 0.5?EIPeers and Vigny, 1968 
C3H619.3C2H4EIHaney and Franklin, 1968 
C3H6O18.8 ± 0.5?EIGallegos and Kiser, 1961 
C3H6O220.8?EIKing and Long, 1958 
C3H825. ± 1.?PIAu, Cooper, et al., 1993 
C4H8O221.3 ± 0.5?EIWada and Kiser, 1962 

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.

Kaposi, Riedel, et al., 1976
Kaposi, O.; Riedel, M.; Vass-Balthazar, K.; Sanchez, G.R.; Lelik, L., Mass-spectrometric determination of thermochemical data of CHBr3 and CBr4 by study of their electron impact and heterogeneous pyrolytic decompositions, Acta Chim. Acad. Sci. Hung., 1976, 89, 221. [all data]

Haney and Franklin, 1968
Haney, M.A.; Franklin, J.L., Correlation of excess energies of electron-impact dissociations with the translational energies of the products, J.Chem. Phys., 1968, 48, 4093. [all data]

Paulett and Ettinger, 1963
Paulett, G.S.; Ettinger, R., Mass spectra and appearance potentials of diazirine and diazomethane, J. Chem. Phys., 1963, 39, 825. [all data]

Chupka and Lifshitz, 1968
Chupka, W.A.; Lifshitz, C., Photoionization of CH3+; heat of formation of CH2, J. Chem. Phys., 1968, 48, 1109. [all data]

Steele, Nichols, et al., 1962
Steele, W.C.; Nichols, L.D.; Stone, F.G.A., An electron impact investigation of some organoboron difluorides, J. Am. Chem. Soc., 1962, 84, 1154. [all data]

Kaposi, Riedel, et al., 1975
Kaposi, O.; Riedel, M.; Sanchez, G.R., Mass-spectrometric study of electron-impact and heterogeneous pyrolytic decomposition of methyl bromide, Acta Chim. Acad. Sci. Hung., 1975, 85, 361. [all data]

Tsuda and Hamill, 1964
Tsuda, S.; Hamill, W.H., Structure in ionization efficiency curves near threshold from alkanes and alkyl halides, J. Chem. Phys., 1964, 41, 2713. [all data]

Chatham, Hils, et al., 1984
Chatham, H.; Hils, D.; Robertson, R.; Gallagher, A., Total and partial electron collisional ionization cross sections for CH4, C2H6, SiH4, and Si2H6, J. Chem. Phys., 1984, 81, 1770. [all data]

Plessis, Marmet, et al., 1983
Plessis, P.; Marmet, P.; Dutil, R., Ionization and appearance potentials of CH4 by electron impact, J. Phys. B:, 1983, 16, 1283. [all data]

McCulloh and Dibeler, 1976
McCulloh, K.E.; Dibeler, V.H., Enthalpy of formation of methyl and methylene radicals of photoionization studies of methane and ketene, J. Chem. Phys., 1976, 64, 4445. [all data]

Morrison and Traeger, 1973
Morrison, J.D.; Traeger, J.C., Ionization and dissociation by electron impact. III. CH4 and SiH4, Int. J. Mass Spectrom. Ion Phys., 1973, 11, 289. [all data]

Chupka, 1968
Chupka, W.A., Mass-spectrometric study of the photoionization of methane, J. Chem. Phys., 1968, 48, 2337. [all data]

Dibeler, Krauss, et al., 1965
Dibeler, V.H.; Krauss, M.; Reese, R.M.; Harllee, F.N., Mass-spectrometric study of photoionization. III. Methane and methane-d4, J. Chem. Phys., 1965, 42, 3791. [all data]

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

Locht and Davister, 1995
Locht, R.; Davister, M., The dissociative ionization of C2H2. The C+, C2+, and CH2+ dissociation channels. The vinylidene ion as a transient?, Chem. Phys., 1995, 195, 443. [all data]

Plessis and Marmet, 1986
Plessis, P.; Marmet, P., Electroionization study of acetylene and fragment ions, Int. J. Mass Spectrom. Ion Processes, 1986, 70, 23. [all data]

Hayaishi, Iwata, et al., 1982
Hayaishi, T.; Iwata, S.; Sasanuma, M.; Ishiguro, E.; Morioka, Y.; Iida, Y.; Nakamura, M., Photoionisation mass spectrometric study of acetylene in the VUV region, J. Phys. B:, 1982, 15, 79. [all data]

Suzuki and Maeda, 1977
Suzuki, I.H.; Maeda, K., Ionization efficiency curves of acetylene by electron impact, Mass Spectrosc. (Tokyo), 1977, 25, 223. [all data]

Franklin and Munson, 1965
Franklin, J.L.; Munson, M.S.B., Ion-molecule reactions in methane-oxygen and acetylene-oxygen systems, Symp. Combust., 10th, Univ. Cambridge, Cambridge, Engl.,, 1965, 1964, 561. [all data]

Suzuki and Maeda, 1974
Suzuki, I.H.; Maeda, K., Ionization efficiency curves and fragmentations of deuterated ethylenes by electron impact, Int. J. Mass Spectrom. Ion Phys., 1974, 15, 281. [all data]

Reinke, Kraessig, et al., 1973
Reinke, D.; Kraessig, R.; Baumgartel, H., Photoreactions of small organic molecules, Z. Naturforsch. A:, 1973, 28, 1021. [all data]

Syrvatka, Bel'ferman, et al., 1971
Syrvatka, B.G.; Bel'ferman, A.L.; Gil'burd, M.M.; Moin, F.B., Determination of the dissociation energy of the double bond in some fluorochloro-substituted ethylenes and their ions by electron bombardment, J. Org. Chem. USSR, 1971, 7, 8, In original 9. [all data]

Lifshitz and Long, 1963
Lifshitz, C.; Long, F.A., Appearance potentials and mass spectra of fluorinated ethylenes. I. Decomposition mechanisms and their energetics, J. Phys. Chem., 1963, 67, 2463. [all data]

Collin and Locht, 1970
Collin, J.E.; Locht, R., Positive and negative ion formation in ketene by electron impact, Intern. J. Mass Spectrom. Ion Phys., 1970, 3, 465. [all data]

Steele and Stone, 1962
Steele, W.C.; Stone, F.G.A., An electron impact study of 1,1,1-trifluoroethane, 1,1,1-trifluoropropane and 3,3,3-trifluoropropene, J. Am. Chem. Soc., 1962, 84, 3450. [all data]

Dibeler and Liston, 1968
Dibeler, V.H.; Liston, S.K., Mass-spectrometric study of photoionization. IX. Hydrogen cyanide and acetonitrile, J. Chem. Phys., 1968, 48, 4765. [all data]

Plessis and Marmet, 1986, 2
Plessis, P.; Marmet, P., Electroionization study of ethylene: Ionization and appearance energies, ion-pair formations, and negative ions, Can. J. Phys., 1986, 65, 165. [all data]

Stockbauer and Inghram, 1975
Stockbauer, R.; Inghram, M.G., Threshold photoelectron-photoion coincidence mass spectrometric study of ethylene and ethylene-d4, J. Chem. Phys., 1975, 62, 4862. [all data]

Maeda, Suzuki, et al., 1974
Maeda, K.; Suzuki, I.H.; Koyama, Y., Ionization efficiency curves of ethylene by electron impact, Int. J. Mass Spectrom. Ion Phys., 1974, 14, 273. [all data]

Chupka, Berkowitz, et al., 1969
Chupka, W.A.; Berkowitz, J.; Refaey, K.M.A., Photoionization of ethylene with mass analysis, J. Chem. Phys., 1969, 50, 1938. [all data]

Kusch, Hustrulid, et al., 1937
Kusch, P.; Hustrulid, A.; Tate, J.T., The dissociation of HCN, C2H2, C2N2 and C2H4 by electron impact, Phys. Rev., 1937, 52, 843. [all data]

Krassig, Reinke, et al., 1974
Krassig, R.; Reinke, D.; Baumgartel, H., Photo-reaktionen kleiner organischer molekule II. Die photoionenspektren der Isomeren propylen-cyclopropan und acetaldehyd-athylenoxyd, Ber. Bunsen-Ges. Phys. Chem., 1974, 78, 425. [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]

King and Long, 1958
King, A.B.; Long, F.A., Mass spectra of some simple esters and their interpretation by quasi-equilibrium theory, J. Chem. Phys., 1958, 29, 374. [all data]

Gallegos and Kiser, 1961, 2
Gallegos, E.; Kiser, R.W., Electron impact spectroscopy of ethylene sulfide and ethylenimine, J. Phys. Chem., 1961, 65, 1177. [all data]

Au, Cooper, et al., 1993
Au, J.W.; Cooper, G.; Brion, C.E., The molecular and dissociative photoionization of ethane, propane, and n-butane: Absolute oscillator strengths (10-80 eV) and breakdown pathways, Chem. Phys., 1993, 173, 241. [all data]

Plessis and Marmet, 1987
Plessis, P.; Marmet, P., Electroionization study of ethane: Ionization and appearance energies, ion-pair formations and negative ions, Can. J. Chem., 1987, 65, 1424. [all data]

Suzuki and Maeda, 1977, 2
Suzuki, I.H.; Maeda, K., Behavior of hydrogen atoms in the fragmentation of CH3CD3, Can. J. Chem., 1977, 55, 3124. [all data]

Blais, Cottin, et al., 1970
Blais, J.-C.; Cottin, M.; Gitton, B., Ionisation positive et negative dans le dimethylsulfoxyde en phase gazeuse, J. Chim. Phys., 1970, 67, 1475. [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]

Peers and Vigny, 1968
Peers, A.M.; Vigny, P., Reactions molecule-ion dans le propylene, J. Chim. Phys., 1968, 65, 805. [all data]


Notes

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