Cyclobutene

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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
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
Δfgas157. ± 2.kJ/molCmWiberg and Fenoglio, 1968ALS
Quantity Value Units Method Reference Comment
Δcgas-2588.2 ± 1.5kJ/molCmWiberg and Fenoglio, 1968Corresponding Δfgas = 156.7 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
33.3250.Dorofeeva O.V., 1986Discrepancies between selected values and those calculated earlier [ Danti A., 1957] amount to 1.6-3.5 J/mol*K for S(T) and Cp(T).; GT
35.05100.
38.61150.
44.70200.
58.74273.15
64.4 ± 2.0298.15
64.84300.
88.07400.
108.62500.
125.54600.
139.44700.
151.04800.
160.83900.
169.181000.
176.341100.
182.491200.
187.801300.
192.391400.
196.381500.

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:
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil275.2KN/AWeast and Grasselli, 1989BS

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Method Reference Comment
24.7260.AStephenson and Malanowski, 1987Based on data from 206. to 275. K.; AC
24.6260.N/AHeisig, 1941Based on data from 196. to 275. K. See also Boublik, Fried, et al., 1984.; AC

Antoine Equation Parameters

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

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Temperature (K) A B C Reference Comment
196.0 to 275.14.082591009.32-28.164Heisig, 1941Coefficents calculated by NIST from author's data.

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

cyclobutene-1-ide anion + Hydrogen cation = Cyclobutene

By formula: C4H5- + H+ = C4H6

Quantity Value Units Method Reference Comment
Δr1693. ± 6.3kJ/molCIDCTian, Fattahi, et al., 2006gas phase
Δr1661. ± 21.kJ/molG+TSKass, Filley, et al., 1986gas phase
Quantity Value Units Method Reference Comment
Δr1659. ± 6.7kJ/molH-TSTian, Fattahi, et al., 2006gas phase
Δr1628. ± 21.kJ/molIMRBKass, Filley, et al., 1986gas phase

(CAS Reg. No. 60211-41-8 • 4294967295Cyclobutene) + Cyclobutene = CAS Reg. No. 60211-41-8

By formula: (CAS Reg. No. 60211-41-8 • 4294967295C4H6) + C4H6 = CAS Reg. No. 60211-41-8

Quantity Value Units Method Reference Comment
Δr57.3 ± 8.8kJ/molN/ADePuy, Gronert, et al., 1989gas phase

Mass spectrum (electron ionization)

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry 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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Mass spectrum
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Additional Data

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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.
Origin Chemical Concepts
NIST MS number 151947

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References

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, 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.

Wiberg and Fenoglio, 1968
Wiberg, K.B.; Fenoglio, R.A., Heats of formation of C4H6 hydrocarbons, J. Am. Chem. Soc., 1968, 90, 3395-3397. [all data]

Dorofeeva O.V., 1986
Dorofeeva O.V., Thermodynamic properties of twenty-one monocyclic hydrocarbons, J. Phys. Chem. Ref. Data, 1986, 15, 437-464. [all data]

Danti A., 1957
Danti A., Thermodynamic functions of cyclobutene, J. Chem. Phys., 1957, 27, 1227. [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]

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]

Heisig, 1941
Heisig, G.B., The Preparation and the Vapor Pressures of Cyclobutene and Cyclobutane *, J. Am. Chem. Soc., 1941, 63, 6, 1698-1699, https://doi.org/10.1021/ja01851a055 . [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]

Tian, Fattahi, et al., 2006
Tian, Z.X.; Fattahi, A.; Lis, L.; Kass, S.R., Cycloalkane and cycloalkene C-H bond dissociation energies, J. Am. Chem. Soc., 2006, 128, 51, 17087-17092, https://doi.org/10.1021/ja065348u . [all data]

Kass, Filley, et al., 1986
Kass, S.R.; Filley, J.; Van Doren, J.M.; DePuy, C.H., Nitrous oxide in gas-phase ion-molecule chemistry: A versatile reagent for the determination of carbanion structure, J. Am. Chem. Soc., 1986, 108, 2849. [all data]

DePuy, Gronert, et al., 1989
DePuy, C.H.; Gronert, S.; Barlow, S.E.; Bierbaum, V.M.; Damrauer, R., The Gas Phase Acidities of the Alkanes, J. Am. Chem. Soc., 1989, 111, 6, 1968, https://doi.org/10.1021/ja00188a003 . [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Mass spectrum (electron ionization), References