Benzophenone

• Formula: C₁₃H₁₀O
• Molecular weight: 182.2179
• IUPAC Standard InChI: InChI=1S/C13H10O/c14-13(11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10H Copy

  
• IUPAC Standard InChIKey: RWCCWEUUXYIKHB-UHFFFAOYSA-N Copy
• CAS Registry Number: 119-61-9
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: Methanone, diphenyl-; α-Oxodiphenylmethane; α-Oxoditane; Benzene, benzoyl-; Benzoylbenzene; Diphenyl ketone; Diphenylmethanone; Phenyl ketone; Ketone, diphenyl; alpha-Oxodiphenylmethane; alpha-Oxoditane; Adjutan 6016; Kayacure BP; Diphenyl-methanon; NSC 8077; 1-Benzophenone; Cinnarizine M (benzophenone); Cyclizine M (Benzophenone)
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Phase change data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Reaction thermochemistry data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
  • X-ray Photoelectron Spectroscopy Database, version 5.0
• Options:
  • Switch to calorie-based units

Data at NIST subscription sites:

• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.

Phase change data

Go To: Top, Gas phase ion energetics data, References, Notes

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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Reduced pressure boiling point

Enthalpy of vaporization

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

View plot Requires a JavaScript / HTML 5 canvas capable browser.

Enthalpy of sublimation

Enthalpy of fusion

Entropy of fusion

Gas phase ion energetics data

Go To: Top, Phase change data, References, Notes

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)

Electron affinity determinations

Ionization energy determinations

Appearance energy determinations

References

Go To: Top, Phase change data, 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.

De Kruif, van Miltenburg, et al., 1983
De Kruif, C.G.; van Miltenburg, J.C.; Blok, J.G., Molar heat capacities and vapour pressures of solid and liquid benzophenone, J. Chem. Thermodyn., 1983, 15, 129. [all data]

Steele, Chirico, et al., 1994
Steele, W.V.; Chirico, R.D.; Hossenlopp, I.A.; Knipmeyer, S.E.; Nguyen, A.; Smith, N.K., DIPPR project 871. Determination of ideal-gas enthalpies of formation for key compounds. The 1990 project results, Experimental Results for DIPPR 1990-91 Projects on Phase Equilibria and Pure Component Properties, 1994, 1994, DIPPR Data Ser. No. 2, p. 188-215. [all data]

Neumann and Volker, 1932
Neumann, K.; Volker, E., Eine drehwaagemethode zur messung kleinster dampfdruck, Z. Phys. Chem., 1932, 161, 33-45. [all data]

Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M., Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [all data]

Jaquerod and Wassmer, 2006
Jaquerod, Adrien; Wassmer, Eugene, Ueber den Siedepunkt des Naphtalins, des Diphenyls und des Benzophenons unter verschiedenem Druck und dessen Bestimmung mit Hilfe des Wasserstoffthermometers, Ber. Dtsch. Chem. Ges., 2006, 37, 3, 2531-2534, https://doi.org/10.1002/cber.19040370303 . [all data]

Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E., The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Dreisbach and Shrader, 1949
Dreisbach, R.R.; Shrader, S.A., Vapor Pressure--Temperature Data on Some Organic Compounds, Ind. Eng. Chem., 1949, 41, 12, 2879-2880, https://doi.org/10.1021/ie50480a054 . [all data]

Dreisbach and Martin, 1949
Dreisbach, R.R.; Martin, R.A., Physical Data on Some Organic Compounds, Ind. Eng. Chem., 1949, 41, 12, 2875-2878, https://doi.org/10.1021/ie50480a053 . [all data]

Ginkel, Kruif, et al., 2001
Ginkel, C.H.D. van; Kruif, C.G. de; Waal, F.E.B. de, The need for temperature control in effusion experiments (and application to heat of sublimation determination), J. Phys. E: Sci. Instrum., 2001, 8, 6, 490-492, https://doi.org/10.1088/0022-3735/8/6/018 . [all data]

Pribilová and Pouchlý, 1974
Pribilová, J.; Pouchlý, J., Vapour pressure of some low-volatile hydrocarbons determined by the effusion method, Collect. Czech. Chem. Commun., 1974, 39, 5, 1118-1124, https://doi.org/10.1135/cccc19741118 . [all data]

Kruif, Miltenburg, et al., 1983
Kruif, C.G. de; Miltenburg, J.C. van; Blok, J.G., Molar heat capacities and vapour pressures of solid and liquid benzophenone, The Journal of Chemical Thermodynamics, 1983, 15, 2, 129-136, https://doi.org/10.1016/0021-9614(83)90151-9 . [all data]

Colomina, Jimenez, et al., 1980
Colomina, M.; Jimenez, P.; Turrion, C.; Fernandez, J.A.; Monzon, C., An. Quim. Ser. A, 1980, 76, 245. [all data]

De Kruif and Van Ginkel, 1977
De Kruif, C.G.; Van Ginkel, C.H.D., Torsion-weighing effusion vapour-pressure measurements on organic compounds, The Journal of Chemical Thermodynamics, 1977, 9, 8, 725-730, https://doi.org/10.1016/0021-9614(77)90015-5 . [all data]

DeKruif, van Ginkel, et al., 1975
DeKruif, C.G.; van Ginkel, C.H.D.; Voogd, J., Torsion-effusion vapour pressure measurements of organic compounds, Conf. Int. Thermodyn. Chim. C. R. 4th, 1975, 8, 11-18. [all data]

Serpinskii, Voitkevich, et al., 1956
Serpinskii, V.V.; Voitkevich, S.A.; Lyuboshits, N.Y., Zh. Fiz. Khim., 1956, 30, 177. [all data]

Wolf and Weghofer, 1938
Wolf, K.L.; Weghofer, H.Z., Z. Phys. Chem. Abt. B, 1938, 39, 194. [all data]

Wolf and Trieschmann, 1934
Wolf, K.L.; Trieschmann, H.G., Z. Phys. Chem. Abt. B, 1934, 27, 376. [all data]

Wolf and Weghofer, 1938, 2
Wolf, K.L.; Weghofer, H., Uber sublimationswarmen, Z. Phys. Chem., 1938, 39, 194-208. [all data]

DeKruif, Van Miltenburg, et al., 1983
DeKruif, C.G.; Van Miltenburg, J.C.; Blok, J.G., Molar heat capacities and vapour pressures of solid and liquid benzophenone, J. Chem. Thermodynam., 1983, 15, 129-136. [all data]

Chirico, Knipmeyer, et al., 2002
Chirico, R.D.; Knipmeyer, S.E.; Steele, W.V., Heat capacities, enthalpy increments, and derived thermodynamic functions for benzophenone between the temperatures 5K and 440K, The Journal of Chemical Thermodynamics, 2002, 34, 11, 1885-1895, https://doi.org/10.1016/S0021-9614(02)00261-6 . [all data]

Hanaya, Hikima, et al., 2002
Hanaya, Minoru; Hikima, Takaaki; Hatase, Minoru; Oguni, Masaharu, Low-temperature adiabatic calorimetry of salol and benzophenone and microscopic observation of their crystallization: finding of homogeneous-nucleation-based crystallization, The Journal of Chemical Thermodynamics, 2002, 34, 8, 1173-1193, https://doi.org/10.1006/jcht.2002.0976 . [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Eykman, 1889
Eykman, J.F., Zur kryoskopischen Molekulargewichtsbestimmung, Z. Physik. Chem., 1889, 4, 497-519. [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]

Notes

Go To: Top, Phase change data, Gas phase ion energetics data, References

• Symbols used in this document:
  

  AE	Appearance energy
  EA	Electron affinity
  IE (evaluated)	Recommended ionization energy
  Pc	Critical pressure
  Tboil	Boiling point
  Tc	Critical temperature
  Tfus	Fusion (melting) point
  Ttriple	Triple point temperature
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔsubH	Enthalpy of sublimation
  ΔsubH°	Enthalpy of sublimation at standard conditions
  ΔvapH	Enthalpy of vaporization
  ΔvapH°	Enthalpy of vaporization at standard conditions
  ρc	Critical density

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
• The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
• Customer support for NIST Standard Reference Data products.