Acetamide, N-phenyl-

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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 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

Ionization energy determinations

IE (eV) Method Reference Comment
8.30 ± 0.10PEBouchoux, 1978LLK
8.60EIBaldwin, Loudon, et al., 1976LLK
8.18 ± 0.03EIBenezra and Bursey, 1971LLK
8.39 ± 0.10EICotter, 1964RDSH
8.46PENakagaki, Kobayashi, et al., 1980Vertical value; LLK
8.46 ± 0.05PESzepes, Distefano, et al., 1974Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C2H3O+13.22 ± 0.03?EIBenezra and Bursey, 1971LLK
C6H7N+10.60?EIBaldwin, Loudon, et al., 1976LLK
C6H7N+10.45 ± 0.03CH2=C=OEIBenezra and Bursey, 1971LLK
C6H7N+8.88 ± 0.15?EICotter, 1964RDSH
C8H8NO+11.00HEIBaldwin, Loudon, et al., 1976LLK

De-protonation reactions

C8H8NO- + Hydrogen cation = Acetamide, N-phenyl-

By formula: C8H8NO- + H+ = C8H9NO

Quantity Value Units Method Reference Comment
Δr347.5 ± 2.1kcal/molG+TSTaft and Bordwell, 1988gas phase; B
Δr352.8 ± 2.3kcal/molG+TSCumming and Kebarle, 1978gas phase; B
Quantity Value Units Method Reference Comment
Δr340.6 ± 2.0kcal/molIMRETaft and Bordwell, 1988gas phase; B
Δr345.8 ± 2.0kcal/molIMRECumming and Kebarle, 1978gas phase; B

Mass spectrum (electron ionization)

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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 compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Mass spectrum
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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin D.HENNEBERG, MAX-PLANCK INSTITUTE, MULHEIM, WEST GERMANY
NIST MS number 63771

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UV/Visible spectrum

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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 compiled by: Victor Talrose, Alexander N. Yermakov, Alexy A. Usov, Antonina A. Goncharova, Axlexander N. Leskin, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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UVVis spectrum
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Additional Data

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Source Johnson, 1966
Owner INEP CP RAS, NIST OSRD
Collection (C) 2007 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS
Source reference RAS UV No. 19783
Instrument Unicam SP 500
Melting point 115-115.6

Gas Chromatography

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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 compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Normal alkane RI, non-polar column, custom temperature program

View large format table.

Column type Active phase I Reference Comment
CapillaryPolydimethyl siloxanes1362.Zenkevich and Chupalov, 1996Program: not specified
CapillaryPolydimethyl siloxanes1362.Schutz and Wollrab A., 1988Program: not specified
OtherMethyl Silicone1358.Ardrey and Moffat, 1981Program: not specified

References

Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Bouchoux, 1978
Bouchoux, G., Ionisation et fragmentation en spectrometrie de masse VIII. Energies d'activation de deux fragmentations competitives, dissociation de l'acetate de phenyle et de l'acetanilide sous impact electronique, Int. J. Mass Spectrom. Ion Phys., 1978, 26, 379. [all data]

Baldwin, Loudon, et al., 1976
Baldwin, M.A.; Loudon, A.G.; Maccoll, A.; Webb, K.S., The nature and fragmentation pathways of the molecular ions of some arylureas, arylthioureas, acetanilides, thioacetanilides and related compounds, Org. Mass Spectrom., 1976, 11, 1181. [all data]

Benezra and Bursey, 1971
Benezra, S.A.; Bursey, M.M., ortho-Effects on ordering factors in mass spectral rearrangements. Loss of keten from halogenated phenyl acetates and acetanilides, J. Chem. Soc. B, 1971, 1515. [all data]

Cotter, 1964
Cotter, J.L., Electron impact fragmentation patterns of acetanilide and benzamide, J. Chem. Soc., 1964, 5477. [all data]

Nakagaki, Kobayashi, et al., 1980
Nakagaki, R.; Kobayashi, T.; Nagakura, S., Conformations of acetanilide and related compounds studied by ultraviolet photoelectron spectroscopy, Bull. Chem. Soc. Jpn., 1980, 53, 901. [all data]

Szepes, Distefano, et al., 1974
Szepes, L.; Distefano, G.; Pignataro, S., Steric inhibition of resonance in acetanilides by UV photoelectron spectroscopy, Ann. Chim., 1974, 64, 159. [all data]

Taft and Bordwell, 1988
Taft, R.W.; Bordwell, F.G., Structural and Solvent Effects Evaluated from Acidities Measured in Dimethyl Sulfoxide and in the Gas Phase, Acc. Chem. Res., 1988, 21, 12, 463, https://doi.org/10.1021/ar00156a005 . [all data]

Cumming and Kebarle, 1978
Cumming, J.B.; Kebarle, P., Summary of gas phase measurements involving acids AH. Entropy changes in proton transfer reactions involving negative ions. Bond dissociation energies D(A-H) and electron affinities EA(A), Can. J. Chem., 1978, 56, 1. [all data]

Johnson, 1966
Johnson, E.A., UV atlas of organic compaunds, 1966, 2, D6/5. [all data]

Zenkevich and Chupalov, 1996
Zenkevich, I.G.; Chupalov, A.A., New Possibilities of Chromato Mass Pectrometric Identification of Organic Compounds Using Increments of Gas Chromatographic Retention Indices of Molecular Structural Fragments, Zh. Org. Khim. (Rus.), 1996, 32, 5, 656-666. [all data]

Schutz and Wollrab A., 1988
Schutz, H.; Wollrab A., The significance of the retention index in toxicologic analysis II, Pharmazie in unzerer Zeit, 1988, 17, 4, 97-101. [all data]

Ardrey and Moffat, 1981
Ardrey, R.E.; Moffat, A.C., Gas-liquid chromatographic retention indices of 1318 substances of toxicological interest on SE-30 or OV-1 stationary phase, J. Chromatogr., 1981, 220, 3, 195-252, https://doi.org/10.1016/S0021-9673(00)81925-1 . [all data]


Notes

Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, References