Benzene, cyclopropyl-

• Formula: C₉H₁₀
• Molecular weight: 118.1757
• IUPAC Standard InChI: InChI=1S/C9H10/c1-2-4-8(5-3-1)9-6-7-9/h1-5,9H,6-7H2 Copy

  
• IUPAC Standard InChIKey: VFSFCYAQBIPUSL-UHFFFAOYSA-N Copy
• CAS Registry Number: 873-49-4
• 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: Cyclopropane, phenyl-; Cyclopropylbenzene; Phenylcyclopropane; 1-Phenylcyclopropane
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • UV/Visible spectrum
  • Gas Chromatography
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Gas 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.

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

Phase change 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
BS - Robert L. Brown and Stephen E. Stein
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Reduced pressure boiling point

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

C₉H₉^- +  =

By formula: C₉H₉^- + H⁺ = C₉H₁₀

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
MM - Michael M. Meot-Ner (Mautner)
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

View reactions leading to C₉H₁₀⁺ (ion structure unspecified)

Proton affinity at 298K

Gas basicity at 298K

Ionization energy determinations

Appearance energy determinations

De-protonation reactions

C₉H₉^- +  =

By formula: C₉H₉^- + H⁺ = C₉H₁₀

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

Gas Phase Spectrum

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Additional Data

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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Additional Data

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Notes

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

Fuchs, Hallman, et al., 1982
Fuchs, R.; Hallman, J.H.; Perlman, M.O., Thermochemistry of conjugation of simple cyclopropane derivatives, Can. J. Chem., 1982, 60, 1832-1835. [all data]

Kozina, Lukina, et al., 1961
Kozina, M.P.; Lukina, M.Yu.; Zubareya, N.D.; Safonova, I.L.; Skuratov, S.M.; Kazansky, B.A., The energy of combustion of some phenylcyclopropanes, Dokl. Akad. Nauk SSSR, 1961, 138, 843-845. [all data]

Fierens and Nasielski, 1962
Fierens, P.J.C.; Nasielski, J., Chaleurs de combustion de derives cyclopropaniques et pouvoir de conjugaison du groupe cyclopropyle, Bull. Soc. Chim. Belg., 1962, 71, 187-202. [all data]

Hahn, Corbin, et al., 1968
Hahn, R.C.; Corbin, T.F.; Shechter, H., Electrical Effects of Cycloalkyl Groups, J. Am. Chem. Soc., 1968, 90, 3404-15. [all data]

Gragson, Greenlee, et al., 1955
Gragson, J.T.; Greenlee, K.W.; Derfer, J.M.; Boord, C.E., Cyclopropane Hydrocarbons from γ-Bromo Ethers, J. Org. Chem., 1955, 20, 275. [all data]

Lespieau, 1930
Lespieau, R., Phenyltrimethylene, C. R. Hebd. Seances Acad. Sci., 1930, 190, 1129-31. [all data]

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Chou, Dahlke, et al., 1993
Chou, P.K.; Dahlke, G.D.; Kass, S.R., Unimolecular Rearrangements of Carbanions in the Gas Phase .2. Cyclopropyl Anions, J. Chem. Soc. Chem. Comm., 1993, 115, 1, 315, https://doi.org/10.1021/ja00054a045 . [all data]

Andrist, DePuy, et al., 1984
Andrist, A.H.; DePuy, C.H.; Squires, R.R., Structures of ssomeric anions in the gas phase: Arylallyl and arylcyclopropyl anions, J. Am. Chem. Soc., 1984, 106, 845. [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]

Aue, Guidoni, et al., 2000
Aue, D.H.; Guidoni, M.; Betowski, L.D., Ab initio calculated gas-phase basicities of polynuclear aromatic hydrocarbons, Int. J. Mass Spectrom., 2000, 201, 283. [all data]

Fu and Dunbar, 1978
Fu, E.W.; Dunbar, R.C., Photodissociation spectroscopy and structural rearrangements in ions of cyclooctatetraene, styrene and related molecules, J. Am. Chem. Soc., 1978, 100, 2283. [all data]

Koppel, Schwarz, et al., 1974
Koppel, C.; Schwarz, H.; Bohlmann, F., Elektronenstossinduzierte fragmentierung von acetylenverbindungen. VIII. Struktur der stabilen und instabilen ionen[C₉H₉]⁺ aus isomeren C₉H₁₀- kohlenwasserstoffen, Org. Mass Spectrom., 1974, 8, 25. [all data]

Shudo, Kobayashi, et al., 1977
Shudo, K.; Kobayashi, T.; Utsunomiya, C., Photoelectron spectral studies on the interaction of three-membered rings with aryl groups, Tetrahedron, 1977, 33, 1721. [all data]

Prins, Verhoeven, et al., 1977
Prins, I.; Verhoeven, J.W.; DeBoer, Th.J.; Worrell, C., Conformational studies on arylcyclopropanes-I, Tetrahedron, 1977, 33, 127. [all data]

Bruckmann and Klessinger, 1974
Bruckmann, P.; Klessinger, M., Photoelektronenspektren organischer verbindungen. V. Wechselwirkung kleiner ringe mit π-systemen, Chem. Ber., 1974, 107, 1108. [all data]

Notes

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• Symbols used in this document:
  

  AE	Appearance energy
  Tboil	Boiling point
  ΔcH°liquid	Enthalpy of combustion of liquid at standard conditions
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfH°liquid	Enthalpy of formation of liquid at standard conditions
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔvapH°	Enthalpy of vaporization at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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