Benzophenone

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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: José A. Martinho Simões

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Individual Reactions

C13H10NaO (solution) + 0.5Dicobalt octacarbonyl (solution) = C4CoNaO4 (solution) + Benzophenone (solution)

By formula: C13H10NaO (solution) + 0.5C8Co2O8 (solution) = C4CoNaO4 (solution) + C13H10O (solution)

Quantity Value Units Method Reference Comment
Δr-157. ± 11.kJ/molRSCKiss, Nolan, et al., 1994solvent: Tetrahydrofuran

Benzophenone (solution) + sodium (cr) = C13H10NaO (solution)

By formula: C13H10O (solution) + Na (cr) = C13H10NaO (solution)

Quantity Value Units Method Reference Comment
Δr-161.1 ± 2.5kJ/molRSCKiss, Nolan, et al., 1994solvent: Tetrahydrofuran

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
B - John E. Bartmess

View reactions leading to C13H10O+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)9.08 ± 0.04eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)882.3kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity852.5kJ/molN/AHunter and Lias, 1998HL

Electron affinity determinations

EA (eV) Method Reference Comment
0.62 ± 0.10IMREGrimsrud, Caldwell, et al., 1985ΔGea(423 K) = -15.3 kcal/mol; ΔSea (estimated) = +2.0 eu; B
1.110 ± 0.040LPESMaeyama, Yagi, et al., 2008Stated EA is Vertical Detachment Energy. Threshold adiabatic EA appears to be ca. 0.6 eV - JEB; B
0.655 ± 0.087IMREHuh, Kang, et al., 1999ΔG(EA) 343K; anchored to ΔG value. Including anchor ΔS, EA is ca. 0.4 kcal/mol more bound.; B
0.694 ± 0.048IMREFukuda and McIver, 1985ΔGea(355 K) = -16.7 kcal/mol; ΔSea = 2.0, est. from data in Kebarle and Chowdhury, 1987; B
0.642 ± 0.052ECDChen and Wentworth, 1983B

Ionization energy determinations

IE (eV) Method Reference Comment
9.4 ± 0.1EIGrutzmacher and Schubert, 1979LLK
9.28EIElder, Beynon, et al., 1976LLK
9.5 ± 0.1EIKrenmayr, Heller, et al., 1974LLK
9.5 ± 0.1EIHeller, Varmuza, et al., 1974LLK
9.46EIBenoit, 1973LLK
9.14 ± 0.03PIIskakov and Potapov, 1971LLK
9.46 ± 0.05EINatalis and Franklin, 1965RDSH
9.35 ± 0.04EIFoffani, Pignataro, et al., 1964RDSH
9.4PITerenin, 1961RDSH
9.05 ± 0.05PEMcAlduff and Bunbury, 1979Vertical value; LLK
9.05PECentineo, Fragala, et al., 1978Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C6H5+15.67C6H5+COEIBenoit, 1973LLK
C6H5+16.22 ± 0.07?EINatalis and Franklin, 1965RDSH
C7H5O+12.0 ± 0.1C6H5EIGrutzmacher and Schubert, 1979LLK
C7H5O+11.45C6H5EIElder, Beynon, et al., 1976LLK
C7H5O+11.4 ± 0.1C6H5EIHeller, Varmuza, et al., 1974LLK
C7H5O+11.72C6H5EIBenoit, 1973LLK
C7H5O+12.00 ± 0.05C6H5EINatalis and Franklin, 1965RDSH
C12H8+17.48 ± 0.12?EINatalis and Franklin, 1965RDSH
C12H9+15.28 ± 0.05CO+H?EINatalis and Franklin, 1965RDSH
C12H10+12.24 ± 0.13COEINatalis and Franklin, 1965RDSH

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, Eugeny B. Stern, Antonina A. Goncharova, 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 Terenin and Ermolaev, 1952
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. 653
Instrument n.i.g.
Melting point 47.8
Boiling point 305.4

References

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, UV/Visible spectrum, Notes

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

Kiss, Nolan, et al., 1994
Kiss, G.; Nolan, S.P.; Hoff, C.D., Inorg. Chim. Acta, 1994, 227, 285. [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]

Grimsrud, Caldwell, et al., 1985
Grimsrud, E.; Caldwell, G.; Kebarle, P., Electron affinities from electron transfer equilibria: A- + B = A + B-, J. Am. Chem. Soc., 1985, 107, 4627. [all data]

Maeyama, Yagi, et al., 2008
Maeyama, T.; Yagi, I.; Fujii, A.; Mikami, N., Photoelectron spectroscopy of microsolvated benzophenone radical anions to reveal the origin of solvatochromic shifts in alcoholic media, Chem. Phys. Lett., 2008, 457, 1-3, 18-22, https://doi.org/10.1016/j.cplett.2008.03.055 . [all data]

Huh, Kang, et al., 1999
Huh, C.; Kang, C.H.; Lee, H.W.; Nakamura, H.; Mishima, M.; Tsuno, Y.; Yamataka, H., Thermodynamic stabilities and resonance demand of aromatic radical anions in the gas phase, Bull. Chem. Soc. Japan, 1999, 72, 5, 1083-1091, https://doi.org/10.1246/bcsj.72.1083 . [all data]

Fukuda and McIver, 1985
Fukuda, E.K.; McIver, R.T., Jr., Relative electron affinities of substituted benzophenones, nitrobenzenes, and quinones. [Anchored to EA(SO2) from 74CEL/BEN], J. Am. Chem. Soc., 1985, 107, 2291. [all data]

Kebarle and Chowdhury, 1987
Kebarle, P.; Chowdhury, S., Electron affinities and electron transfer reactions, Chem. Rev., 1987, 87, 513. [all data]

Chen and Wentworth, 1983
Chen, E.C.M.; Wentworth, W.E., Determination of molecular electron affinities using the electron capture detector in the pulse sampling mode at steady state, J. Phys. Chem., 1983, 87, 45. [all data]

Grutzmacher and Schubert, 1979
Grutzmacher, H.-F.; Schubert, R., Substituent effects in the mass spectra of benzoyl hetarenes, Org. Mass Spectrom., 1979, 14, 567. [all data]

Elder, Beynon, et al., 1976
Elder, J.F.; Beynon, J.H.; Cooks, R.G., The benzoyl ion. Thermochemistry and kinetic energy release, Org. Mass Spectrom., 1976, 11, 415. [all data]

Krenmayr, Heller, et al., 1974
Krenmayr, P.; Heller, R.; Varmuza, K., Massenspektrometrische untersuchungen an benzophenon und substituierten benzophenonen. I. Ermittlung thermodynamischer grossen, Org. Mass Spectrom., 1974, 9, 998. [all data]

Heller, Varmuza, et al., 1974
Heller, R.; Varmuza, K.; Krenmayr, P., Massenspektrometrische untersuchung des substituenteneffektes bei einfach substituierten benzophenonen, Monatsh. Chem., 1974, 105, 787. [all data]

Benoit, 1973
Benoit, F., The benzoyl cation: The participation of isolated electronic excited states in the dissociation of molecular ions of the form [C6H5COX]+, Org. Mass Spectrom., 1973, 7, 1407. [all data]

Iskakov and Potapov, 1971
Iskakov, L.I.; Potapov, V.K., Photionization and decomposition of benzaldehyde, acetophenone, and benzophenone, High Energy Chem., 1971, 5, 238, In original 265. [all data]

Natalis and Franklin, 1965
Natalis, P.; Franklin, J.L., Ionization and dissociation of diphenyl and condensed ring aromatics by electron impact. II. Diphenylcarbonyls and ethers, J. Phys. Chem., 1965, 69, 2943. [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]

Terenin, 1961
Terenin, A., Charge transfer in organic solids, induced by light, Proc. Chem. Soc., London, 1961, 321. [all data]

McAlduff and Bunbury, 1979
McAlduff, E.J.; Bunbury, D.L., Photoelectron spectra of some aromatic mono-and di-ketones, J. Electron Spectrosc. Relat. Phenom., 1979, 17, 81. [all data]

Centineo, Fragala, et al., 1978
Centineo, G.; Fragala, I.; Bruno, G.; Spampinato, S., Photoelectron spectroscopy of benzophenone, acetophenone and their ortho-alkyl derivatives, J. Mol. Struct., 1978, 44, 203. [all data]

Terenin and Ermolaev, 1952
Terenin, A.N.; Ermolaev, V.L., Sensibilized phosphorescence of organic molecules at low temperatures, Dokl. Akad. Nauk SSSR, 1952, 85, 3, 547-550. [all data]


Notes

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, UV/Visible spectrum, References