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C4H4+ (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 C4H4+ (ion structure unspecified)

Precursor AP (eV) Other Products Method Reference Comment
C4H49.25?EILi and McGee, 1969 
C4H4N211.64 ± 0.05N2EIMomigny, Urbain, et al., 1965 
C4H613.0 ± 0.1H2EIDannacher, Flamme, et al., 1980 
C4H613.84 ± 0.07H2EIFranklin and Mogenis, 1967 
C4H610.9 ± 0.2H2EICoats and Anderson, 1957 
C4H610.6 ± 0.2H2PIBombach, Dannacher, et al., 1983 
C4H614.0 ± 0.1H2EICoats and Anderson, 1957 
C5H4O210.2?EIHedaya, Miller, et al., 1969 
C5H5N11.84 ± 0.05HCNTRPILifshitz and Malinovich, 1984 
C5H5N12.6 ± 0.1HCNEIBurgers and Holmes, 1984 
C5H5N12.34 ± 0.05HCNEIBurgers and Holmes, 1984 
C5H5N12.0 ± 0.2HCNTRPILifshitz, 1982 
C5H5N12.15 ± 0.02HCNPIPECORosenstock, Stockbauer, et al., 1981 
C5H5N11.8HCNPIEland, Berkowitz, et al., 1978 
C5H5N12.3 ± 0.1HCNEIRosenstock, McCulloh, et al., 1977 
C5H5N13.41 ± 0.05HCNEIZaretskii, Oren, et al., 1976 
C5H5N13.28HCNEIBeynon, Hopkinson, et al., 1969 
C5H821.12 ± 0.08?EIFranklin and Mogenis, 1967 
C6H5Br16.8 ± 0.1?EIMomigny, 1959 
C6H5Cl17.6 ± 0.1?EIMomigny, 1959 
C6H5F15.90 ± 0.09C2HFPIPECONishimura, Meisels, et al., 1991 
C6H5F17.0 ± 0.1?EIMomigny, 1959 
C6H614.77C2H2EIMomigny, Brakier, et al., 1962 
C6H611.82C2H2EIMomigny, Brakier, et al., 1962 
C6H611.3 ± 0.2C2H2PIRosenstock, McCulloh, et al., 1977 
C6H612.12C2H2EIMomigny, Brakier, et al., 1962 
C6H6<=11.8C2H2PIDannacher, Stadelmann, et al., 1981 
C6H612.C2H2EIMomigny, Brakier, et al., 1962 
C6H610.42 ± 0.08C2H2PIRosenstock, McCulloh, et al., 1977 
C6H610.5 ± 0.1C2H2EIRosenstock, McCulloh, et al., 1977 
C6H611.4C2H2EIMomigny, Brakier, et al., 1962 
C6H613.40C2H2LSKuhlewind, Kiermeier, et al., 1986T = 0K
C6H613.9 ± 0.1C2H2EIRosenstock, McCulloh, et al., 1977 
C6H614.17 ± 0.08C2H2PIRosenstock, McCulloh, et al., 1977 
C6H614.85C2H2PEEland, Frey, et al., 1976 
C6H613.85C2H2PIRosenstock, Larkins, et al., 1973 
C6H614.1C2H2EIHickling and Jennings, 1970 
C6H614.5 ± 0.2C2H2EILifshitz and Reuben, 1969 
C6H6S17.5 ± 0.3?EIGal'perin, Bogolyubov, et al., 1969 
C6H812.82 ± 0.10C2H2+H2EIFranklin and Carroll, 1969 
C6H813.91 ± 0.20C2H2+H2EIFranklin and Carroll, 1969 
C6H813.55 ± 0.10C2H2+H2EIFranklin and Carroll, 1969 
C6H9N13.4CH2=NH+CH3EIPlotnikov, Bogolyubov, et al., 1969 
C6H1015.41 ± 0.08?EIFranklin and Mogenis, 1967 
C8H817.25 ± 0.152C2H2EIFranklin and Carroll, 1969, 2 
C8H813.85 ± 0.102C2H2EIFranklin and Carroll, 1969, 2 
C8H813.90 ± 0.102C2H2EIFranklin and Carroll, 1969, 2 
C8H812.88 ± 0.152C2H2EIFranklin and Carroll, 1969, 2 
C8H815.31 ± 0.202C2H2EIFranklin and Carroll, 1969, 2 
C8H815.10 ± 0.102C2H2EIFranklin and Carroll, 1969, 2 
C8H816.01 ± 0.152C2H2EIFranklin and Carroll, 1969, 2 
C8H11N13.7?EIPlotnikov, Bogolyubov, et al., 1969 
C10H819.1 ± 0.1C4H2+C2H2PIJochims, Rasekh, et al., 1992 
C10H817.8 ± 0.10?EIVanBrunt and Wacks, 1964 
C10H819.4 ± 0.1C4H2+C2H2PIJochims, Rasekh, et al., 1992 
C10H819.6 ± 0.20?EIVanBrunt and Wacks, 1964 

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.

Li and McGee, 1969
Li, P.H.; McGee, H.A., Jr., Mass spectrum and ionization potential of condensed cyclobutadiene, Chem. Commun., 1969, 592. [all data]

Momigny, Urbain, et al., 1965
Momigny, J.; Urbain, J.; Wankenne, H., Les effets de l'impact electronique sur la pyridine et les diazines isomeres, Bull. Soc. Roy. Sci. Liege, 1965, 34, 337. [all data]

Dannacher, Flamme, et al., 1980
Dannacher, J.; Flamme, J.P.; Stadelmann, J.P.; Vogt, J., Unimolecular fragmentations of internal energy selected 1,3-butadiene cations, Chem. Phys., 1980, 51, 189. [all data]

Franklin and Mogenis, 1967
Franklin, J.L.; Mogenis, A., An electron impact study of ions from several dienes, J. Phys. Chem., 1967, 71, 2820. [all data]

Coats and Anderson, 1957
Coats, F.H.; Anderson, R.C., Thermodynamic data from electron-impact measurements on acetylene and substituted acetylenes, J. Am. Chem. Soc., 1957, 79, 1340. [all data]

Bombach, Dannacher, et al., 1983
Bombach, R.; Dannacher, J.; Stadelmann, J.-P.; Neier, R., Fundamental aspects of ionic dissociations: The fragmentation pathways of excited bicyclobutane cations, Helv. Chim. Acta, 1983, 66, 701. [all data]

Hedaya, Miller, et al., 1969
Hedaya, E.; Miller, R.D.; McNeil, D.W.; D'Angelo, P.F.; Schissel, P., Flash vacuum pyrolysis. V. Cyclobutadiene, J. Am. Chem. Soc., 1969, 91, 1875. [all data]

Lifshitz and Malinovich, 1984
Lifshitz, C.; Malinovich, Y., Time resolved photoionization mass spectrometry in the millisecond range, Int. J. Mass Spectrom. Ion Processes, 1984, 60, 99. [all data]

Burgers and Holmes, 1984
Burgers, P.C.; Holmes, J.L., Fragmentation rate constants and appearance energies for reactions having a large kinetic shift and the energy partitioning in their metastable decomposition, Int. J. Mass Spectrom. Ion Processes, 1984, 58, 15. [all data]

Lifshitz, 1982
Lifshitz, C., Time-dependent mass spectra and breakdown graphs. 2. The kinetic shift in pyridine, J. Phys. Chem., 1982, 86, 606. [all data]

Rosenstock, Stockbauer, et al., 1981
Rosenstock, H.M.; Stockbauer, R.; Parr, A.C., Unimolecular kinetis of pyridine ion fragmentation, Int. J. Mass Spectrom. Ion Phys., 1981, 38, 323. [all data]

Eland, Berkowitz, et al., 1978
Eland, J.H.D.; Berkowitz, J.; Schulte, H.; Frey, R., Rates of unimolecular pyridine ion decay and the heat of formation of C4H4+, Int. J. Mass Spectrom. Ion Phys., 1978, 28, 297. [all data]

Rosenstock, McCulloh, et al., 1977
Rosenstock, H.M.; McCulloh, K.E.; Lossing, F.P., On the mechanisms of C6H6 ionization fragmentation, Int. J. Mass Spectrom. Ion Phys., 1977, 25, 327. [all data]

Zaretskii, Oren, et al., 1976
Zaretskii, Z.V.I.; Oren, D.; Kelner, L., Automatic method for the measurement of the electron impact ionization and appearance potentials, Appl. Spectrosc., 1976, 30, 366. [all data]

Beynon, Hopkinson, et al., 1969
Beynon, J.H.; Hopkinson, J.A.; Lester, G.R., Mass spectrometry-the appearance potentials of "meta-stable peaks" in some aromatic nitro compounds - a chemical reaction in the mass spectrometer, Intern. J. Mass Spectrom. Ion Phys., 1969, 2, 291. [all data]

Momigny, 1959
Momigny, J., Determination et discussion des potentials d'apparition d'ions fragmentaires dans le benzene et ses derives monohalogenes, Bull. Soc. Roy. Sci. Liege, 1959, 28, 251. [all data]

Nishimura, Meisels, et al., 1991
Nishimura, T.; Meisels, G.; Niwa, Y., Fragmentation of energy-selected fluorobenzene ion, Bull. Chem. Soc. Jpn., 1991, 64, 2894. [all data]

Momigny, Brakier, et al., 1962
Momigny, J.; Brakier, L.; D'Or, L., Comparaison entre les effets de l'impact electronique sur le benzene et sur les isomeres du benzene en chaine ouverte, Bull. Classe Sci. Acad. Roy. Belg., 1962, 48, 1002. [all data]

Dannacher, Stadelmann, et al., 1981
Dannacher, J.; Stadelmann, J.P.; Vogt, J., On the decay of electronically excited 1,3-hexadiyne cations, Int. J. Mass Spectrom. Ion Processes, 1981, 38, 69. [all data]

Kuhlewind, Kiermeier, et al., 1986
Kuhlewind, H.; Kiermeier, A.; Neusser, H.J., Multiphoton ionization in a reflectron time-of-flight mass spectrometer: Individual rates of competing dissociation channels in energy-selected benzene cations [Data derived from reported threshold energies taking value of 9.244 eV for IE[Benzene]], J. Chem. Phys., 1986, 85, 4427. [all data]

Eland, Frey, et al., 1976
Eland, J.H.D.; Frey, R.; Schulte, H.; Brehm, B., New results on the fragmentation of the benzene ion, Int. J. Mass Spectrom. Ion Phys., 1976, 21, 209. [all data]

Rosenstock, Larkins, et al., 1973
Rosenstock, H.M.; Larkins, J.T.; Walker, J.A., Interpretation of photoionization thresholds: Quasiequilibrium theory and the fragmentation of benzene, Int. J. Mass Spectrom. Ion Phys., 1973, 11, 309. [all data]

Hickling and Jennings, 1970
Hickling, R.D.; Jennings, K.R., Kinetic shifts and metastable transitions, Org. Mass Spectrom., 1970, 3, 1499. [all data]

Lifshitz and Reuben, 1969
Lifshitz, C.; Reuben, B.G., Ion-molecule reactions in aromatic systems. I. Secondary ions and reaction rates in benzene, J. Chem. Phys., 1969, 50, 951. [all data]

Gal'perin, Bogolyubov, et al., 1969
Gal'perin, Ya.V.; Bogolyubov, G.M.; Grishin, N.N.; Petrov, A.A., Organic derivatives of elements of groups V and VI. VI. Mass spectra of compounds with S-S bonds, Zh. Obshch. Khim., 1969, 39, 1599, In original 1567. [all data]

Franklin and Carroll, 1969
Franklin, J.L.; Carroll, S.R., Effect of molecular structure on ionic decomposition. II. An electron-impact study of 1,3-and 1,4-cyclohexadiene and 1,3,5-hexatriene, J. Am. Chem. Soc., 1969, 91, 6564. [all data]

Plotnikov, Bogolyubov, et al., 1969
Plotnikov, V.F.; Bogolyubov, G.M.; Maretina, I.A.; Petrov, A.A., Organic derivatives of elements of Groups V and VI. V. Mass spectra of 1-buten-3-ynylamines, Zh. Org. Khim., 1969, 5, 1137, In original 1157. [all data]

Franklin and Carroll, 1969, 2
Franklin, J.L.; Carroll, S.R., The effect of molecular structure on ionic decomposition. I. An electron impact study of seven C8H8 isomers, J. Am. Chem. Soc., 1969, 91, 5940. [all data]

Jochims, Rasekh, et al., 1992
Jochims, H.-W.; Rasekh, H.; Ruhl, E.; Baumgartel, H.; Leach, S., The photofragmentation of naphthalene and azulene monocations in the energy range 7-22 eV, Chem. Phys., 1992, 168, 159. [all data]

VanBrunt and Wacks, 1964
VanBrunt, R.J.; Wacks, M.E., Electron-impact studies of aromatic hydrocarbons. III. Azulene and naphthalene, J. Chem. Phys., 1964, 41, 3195. [all data]


Notes

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