Acetophenone, 4'-amino-

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Condensed phase thermochemistry 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfsolid-43.5 ± 0.1kcal/molCcbLebedeva, Gutner, et al., 1971Hfusion=3.8±0.1, see Lebedeva, Rjadnenko, et al., 1969
Quantity Value Units Method Reference Comment
Δcsolid-1016.3 ± 0.1kcal/molCcbLebedeva, Gutner, et al., 1971Hfusion=3.8±0.1, see Lebedeva, Rjadnenko, et al., 1969
Δcsolid-1129.7 ± 0.2kcal/molCcbSullivan and Hunt, 1949 
Δcsolid-1130.41 ± 0.20kcal/molCcbSullivan, Kibler, et al., 1948 

Reaction thermochemistry 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 by: John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

C8H8NO- + Hydrogen cation = Acetophenone, 4'-amino-

By formula: C8H8NO- + H+ = C8H9NO

Quantity Value Units Method Reference Comment
Δr351.3 ± 2.1kcal/molG+TSTaft and Topsom, 1987gas phase; value altered from reference due to change in acidity scale
Quantity Value Units Method Reference Comment
Δr344.0 ± 2.0kcal/molIMRETaft and Topsom, 1987gas phase; value altered from reference due to change in acidity scale

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

Data compiled as indicated in comments:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Quantity Value Units Method Reference Comment
Proton affinity (review)217.2kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity209.6kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
7.8 ± 0.1PEEgdell, Green, et al., 1975LLK
8.3 ± 0.1EIChin and Harrison, 1969RDSH
8.17 ± 0.02EIFoffani, Pignataro, et al., 1964RDSH
8.27PEGal, Geribaldi, et al., 1985Vertical value; LBLHLM

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C7H6NO+10.2 ± 0.2CH3EIChin and Harrison, 1969RDSH
C7H6NO+9.34CH3EIBuchs, Rossetti, et al., 1964RDSH

De-protonation reactions

C8H8NO- + Hydrogen cation = Acetophenone, 4'-amino-

By formula: C8H8NO- + H+ = C8H9NO

Quantity Value Units Method Reference Comment
Δr351.3 ± 2.1kcal/molG+TSTaft and Topsom, 1987gas phase; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Δr344.0 ± 2.0kcal/molIMRETaft and Topsom, 1987gas phase; value altered from reference due to change in acidity scale; B

References

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

Lebedeva, Gutner, et al., 1971
Lebedeva, N.D.; Gutner, N.M.; Ryadnenko, V.L., Heats of combustion and formation of certain aromatic amino-derivatives, Russ. J. Phys. Chem. (Engl. Transl.), 1971, 45, 561-562. [all data]

Lebedeva, Rjadnenko, et al., 1969
Lebedeva, N.D.; Rjadnenko, B.L.; Gutner, N.M., Heats of formation of some N-containing organic compounds, Int. Conf. Calorim. Therm. (Warsaw, Poland), 1969, 1-8. [all data]

Sullivan and Hunt, 1949
Sullivan, M.V.; Hunt, H., Heats of combustion. IV. The heats of combustion of five aromatic amines, J. Phys. Chem., 1949, 53, 497-500. [all data]

Sullivan, Kibler, et al., 1948
Sullivan, M.V.; Kibler, G.M.; Hunt, H., Heats of combustion of nitrogen containing compounds, Rpt. Tech. Memo. PUR-3 for USN Project SQUID Contract N6ori-104, Task Order No. 1 Designation No. NR 22 042 by Purdue University, Lafayette, IN, 1948, 1-46. [all data]

Taft and Topsom, 1987
Taft, R.W.; Topsom, R.D., The Nature and Analysis of Substituent Effects, Prog. Phys. Org. Chem., 1987, 16, 1. [all data]

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]

Egdell, Green, et al., 1975
Egdell, R.; Green, J.C.; Rao, C.N.R., Photoelectron spectra of substituted benzenes, Chem. Phys. Lett., 1975, 33, 600. [all data]

Chin and Harrison, 1969
Chin, M.S.; Harrison, A.G., Substituent effects on ion abundances and energetics in substituted acetophenones, Org. Mass Spectrom., 1969, 2, 1073. [all data]

Foffani, Pignataro, et al., 1964
Foffani, A.; Pignataro, S.; Cantone, B.; Grasso, F., Ionization potentials and substituent effects for aromatic carbonyl compounds, Z. Physik. Chem. (Frankfurt), 1964, 42, 221. [all data]

Gal, Geribaldi, et al., 1985
Gal, J.-F.; Geribaldi, S.; Pfister-Guillouzo, G.; Morris, D.G., Basicity of the carbonyl group. Part 12. Correlations between ionization potentials and lewis basicities in aromatic carbonyl compounds, J. Chem. Soc. Perkin Trans. 2, 1985, 103. [all data]

Buchs, Rossetti, et al., 1964
Buchs, A.; Rossetti, G.P.; Susz, B.P., Etude, en fonction de la constante σp de Hammett, du spectre de masse d'acetophenones p-substituees, Helv. Chim. Acta, 1964, 47, 1563. [all data]


Notes

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