Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

Benzene, 2-propenyl-

Data at NIST subscription sites:

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.


Condensed phase thermochemistry data

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

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
Deltacliquid-5169.3kJ/molCcbClopatt, 1932Corresponding «DELTA»fliquid = 199. kJ/mol (simple calculation by NIST; no Washburn corrections)

Phase change data

Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, 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
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil429. ± 2.KAVGN/AAverage of 12 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus233.15KN/ALespieau, 1930Uncertainty assigned by TRC = 4. K; TRC
Quantity Value Units Method Reference Comment
Deltavap46.3 ± 0.2kJ/molGSVerevkin, 1999Based on data from 274. - 313. K.; AC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
46.5 ± 0.2294.GSVerevkin, 1999Based on data from 274. - 313. K.; AC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Reaction thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, 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:
B - John E. Bartmess
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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- + Hydrogen cation = Benzene, 2-propenyl-

By formula: C9H9- + H+ = C9H10

Quantity Value Units Method Reference Comment
Deltar1540. ± 9.2kJ/molG+TSGlasovac, Eckert-Maksic, et al., 2002gas phase; The PhCH2CH=CH2 HOF by 81CHY/HIM is at least 4 kcal/mol too high in energy; B
Deltar1540. ± 19.kJ/molG+TSDahlke and Kass, 1991gas phase; Between Et2NOH, Me2CH=NOH. Reprotonation site uncertain.; B
Quantity Value Units Method Reference Comment
Deltar1513. ± 8.8kJ/molIMREGlasovac, Eckert-Maksic, et al., 2002gas phase; The PhCH2CH=CH2 HOF by 81CHY/HIM is at least 4 kcal/mol too high in energy; B
Deltar1513. ± 19.kJ/molIMRBDahlke and Kass, 1991gas phase; Between Et2NOH, Me2CH=NOH. Reprotonation site uncertain.; B

Benzene, 2-propenyl- = (Z)-1-Phenylpropene

By formula: C9H10 = C9H10

Quantity Value Units Method Reference Comment
Deltar-12.3 ± 0.6kJ/molEqkTaskinen and Lindholm, 1994liquid phase; solvent: DMSO; Heat of isomerization; ALS

Hydrogen + Benzene, 2-propenyl- = Benzene, propyl-

By formula: H2 + C9H10 = C9H12

Quantity Value Units Method Reference Comment
Deltar-126. ± 0.8kJ/molChydRogers and McLafferty, 1971liquid phase; solvent: Hydrocarbon; ALS

Benzene, 2-propenyl- = trans-β-Methylstyrene

By formula: C9H10 = C9H10

Quantity Value Units Method Reference Comment
Deltar-23.3 ± 0.5kJ/molEqkTaskinen and Lindholm, 1994liquid phase; solvent: DMSO; ALS

trans-β-Methylstyrene = Benzene, 2-propenyl-

By formula: C9H10 = C9H10

Quantity Value Units Method Reference Comment
Deltar-20.1kJ/molEqkTaskinen and Lindholm, 1994gas phase; Heat of isomerization; ALS

Gas phase ion energetics data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, 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:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

View reactions leading to C9H10+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
8.70PEFu and Dunbar, 1978LLK
7.8 ± 0.1EIKoppel, Schwarz, et al., 1974LLK
8.60PERabalais and Colton, 1973LLK
8.20 ± 0.02PEMaier and Turner, 1973LLK
9.16PEEaton and Traylor, 1974Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C9H9+11.6 ± 0.1HEIKoppel, Schwarz, et al., 1974LLK

De-protonation reactions

C9H9- + Hydrogen cation = Benzene, 2-propenyl-

By formula: C9H9- + H+ = C9H10

Quantity Value Units Method Reference Comment
Deltar1540. ± 9.2kJ/molG+TSGlasovac, Eckert-Maksic, et al., 2002gas phase; The PhCH2CH=CH2 HOF by 81CHY/HIM is at least 4 kcal/mol too high in energy; B
Deltar1540. ± 19.kJ/molG+TSDahlke and Kass, 1991gas phase; Between Et2NOH, Me2CH=NOH. Reprotonation site uncertain.; B
Quantity Value Units Method Reference Comment
Deltar1513. ± 8.8kJ/molIMREGlasovac, Eckert-Maksic, et al., 2002gas phase; The PhCH2CH=CH2 HOF by 81CHY/HIM is at least 4 kcal/mol too high in energy; B
Deltar1513. ± 19.kJ/molIMRBDahlke and Kass, 1991gas phase; Between Et2NOH, Me2CH=NOH. Reprotonation site uncertain.; B

IR Spectrum

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), UV/Visible spectrum, References, Notes

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

Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.

IR spectrum
For Zoom
1.) Enter the desired X axis range (e.g., 100, 200)
2.) Check here for automatic Y scaling
3.) Press here to zoom

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

View image of digitized spectrum (can be printed in landscape orientation).

View spectrum image in SVG format.

Download spectrum in JCAMP-DX format.

Owner NIST Standard Reference Data Program
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin Sadtler Research Labs Under US-EPA Contract
State gas

This IR spectrum is from the NIST/EPA Gas-Phase Infrared Database .


Mass spectrum (electron ionization)

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, UV/Visible spectrum, References, Notes

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

Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.

Mass spectrum
For Zoom
1.) Enter the desired X axis range (e.g., 100, 200)
2.) Check here for automatic Y scaling
3.) Press here to zoom

Additional Data

View image of digitized spectrum (can be printed in landscape orientation).

View spectrum image in SVG format.

Download spectrum in JCAMP-DX format.

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.
NIST MS number 2025

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


UV/Visible spectrum

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

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

Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.

UVVis spectrum
For Zoom
1.) Enter the desired X axis range (e.g., 100, 200)
2.) Check here for automatic Y scaling
3.) Press here to zoom

Additional Data

View image of digitized spectrum (can be printed in landscape orientation).

View spectrum image in SVG format.

Download spectrum in JCAMP-DX format.

Source Rabinovich, Astaf'ev, et al., 1962
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. 3167
Instrument n.i.g.
Melting point -40
Boiling point 156

References

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

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

Clopatt, 1932
Clopatt, J.A., Eine neue Methode zur Bestimmung der Verbrennungswarme fluchtiger Stoffe, Soc. Scient. Fenn. Commentat. Phys. Math., 1932, 6, 1-15. [all data]

Lespieau, 1930
Lespieau, R., Preparation of the «beta» Dibromides of Trimethylenic Hydrocarbons, Bull. Soc. Chim. Fr., 1930, 47, 847. [all data]

Verevkin, 1999
Verevkin, Sergey P., Thermochemical investigation on «alpha»-methyl-styrene and parent phenyl substituted alkenes, Thermochimica Acta, 1999, 326, 1-2, 17-25, https://doi.org/10.1016/S0040-6031(98)00585-1 . [all data]

Glasovac, Eckert-Maksic, et al., 2002
Glasovac, Z.; Eckert-Maksic, M.; Dacres, J.E.; Kass, S.R., Gas phase formation of 1-phenylcyclobuten-3-yl and 1- phenylallyl anions and a determination of the allylic C-H acidities and bond dissociation energies of 1-phenylcyclobutene and (E)-1-phen, J. Chem. Soc. Perkin Trans., 2002, 2, 3, 410-415, https://doi.org/10.1039/b111398d . [all data]

Dahlke and Kass, 1991
Dahlke, G.D.; Kass, S.R., Substituent Effects in the Gas Phase - 1-Substituted Allyl Anions, J. Am. Chem. Soc., 1991, 113, 15, 5566, https://doi.org/10.1021/ja00015a008 . [all data]

Taskinen and Lindholm, 1994
Taskinen, E.; Lindholm, N., Relative thermodynamic stabilities of the isomeric propenylbenzenes, J. Phys. Org. Chem., 1994, 7, 256-258. [all data]

Rogers and McLafferty, 1971
Rogers, D.W.; McLafferty, F.J., A new hydrogen calorimeter. Heats of hydrogenation of allyl and vinyl unsaturation adjacent to a ring, Tetrahedron, 1971, 27, 3765-3775. [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]

Rabalais and Colton, 1973
Rabalais, J.W.; Colton, R.J., Electronic interaction between the phenyl group and its unsaturated substituents, J. Electron Spectrosc. Relat. Phenom., 1973, 1, 83. [all data]

Maier and Turner, 1973
Maier, J.P.; Turner, D.W., Steric inhibition of resonance studied by molecular photoelectron spectroscopy. Part 2. Phenylethylenes, J. Chem. Soc. Faraday Trans. 2, 1973, 69, 196. [all data]

Eaton and Traylor, 1974
Eaton, D.F.; Traylor, T.G., Distortional stabilization in phenyl participations, J. Am. Chem. Soc., 1974, 96, 7109. [all data]

Rabinovich, Astaf'ev, et al., 1962
Rabinovich, E.A.; Astaf'ev, I.V.; Shatenshtein, A.I., The problem of the carbane ion mechanism of isomerization of unsaturated hydrocarbons, Zh. Obshch. Khim., 1962, 32, 746-747. [all data]


Notes

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