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Pentanal

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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:
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 C5H10O+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)9.74 ± 0.04eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)190.4kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity182.8kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
9.72EIHolmes, Fingas, et al., 1981LLK
9.89 ± 0.12EIEl-Sherbini, Allam, et al., 1981LLK
9.90EIMorgan, Derrick, et al., 1980LLK
9.65 ± 0.02PEAshmore and Burgess, 1978LLK
9.72 ± 0.06EIHolmes, Yuan, et al., 1977LLK
9.748 ± 0.005PEHernandez, Masclet, et al., 1977LLK
9.77 ± 0.01PECocksey, Eland, et al., 1971LLK
9.82 ± 0.05PIWatanabe, Nakayama, et al., 1962RDSH
9.82PEBenoit and Harrison, 1977Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C2H4O+11.40C3H6EIMorgan, Derrick, et al., 1980LLK
C3H6+11.90C2H4OEIMorgan, Derrick, et al., 1980LLK
C3H6O+10.00C2H4EIMorgan, Derrick, et al., 1980LLK
C3H6O+9.82C2H4EIHolmes and Lossing, 1980LLK
C5H8+10.00H2OEIMorgan, Derrick, et al., 1980LLK
C5H8+9.80 ± 0.06H2OEIHolmes, Yuan, et al., 1977LLK

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]

Holmes, Fingas, et al., 1981
Holmes, J.L.; Fingas, M.; Lossing, F.P., Towards a general scheme for estimating the heats of formation of organic ions in the gas phase. Part I. Odd-electron cations, Can. J. Chem., 1981, 59, 80. [all data]

El-Sherbini, Allam, et al., 1981
El-Sherbini, T.M.; Allam, S.H.; Migahed, M.D.; Dawoud, A.M., Mass spectrometric investigation of aliphatic aldehydes, Z. Naturforsch. A:, 1981, 36, 1334. [all data]

Morgan, Derrick, et al., 1980
Morgan, R.P.; Derrick, P.J.; Loudon, A.G., Kinetics and mechanisms of the decompositions of the molecular ions of pentanal and its monomethyl- substituted homologues in the picosecond to microsecond time interval following field ionization, J. Chem. Soc. Perkin Trans. 2, 1980, 306. [all data]

Ashmore and Burgess, 1978
Ashmore, F.S.; Burgess, A.R., Photoelectron spectra of the unbranched C5-C7 alkenes, aldehydes and ketones, J. Chem. Soc. Faraday Trans. 2, 1978, 74, 734. [all data]

Holmes, Yuan, et al., 1977
Holmes, J.L.; Yuan, D.; Rye, R.T.B., Metastable ion studies VII-Loss of water from the molecular ion of cyclopentanol, Org. Mass Spectrom., 1977, 12, 254. [all data]

Hernandez, Masclet, et al., 1977
Hernandez, R.; Masclet, P.; Mouvier, G., Spectroscopie de photoelectrons d'aldehydes et de cetones aliphatiques, J. Electron Spectrosc. Relat. Phenom., 1977, 10, 333. [all data]

Cocksey, Eland, et al., 1971
Cocksey, B.J.; Eland, J.H.D.; Danby, C.J., The effect of alkyl substitution on ionisation potential, J. Chem. Soc., 1971, (B), 790. [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]

Benoit and Harrison, 1977
Benoit, F.M.; Harrison, A.G., Predictive value of proton affinity. Ionization energy correlations involving oxygenated molecules, J. Am. Chem. Soc., 1977, 99, 3980. [all data]

Holmes and Lossing, 1980
Holmes, J.L.; Lossing, F.P., Gas-phase heats of formation of keto and enol ions of carbonyl compounds., J. Am. Chem. Soc., 1980, 102, 1591. [all data]


Notes

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