Cyclopropane

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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 as indicated in comments:
B - John E. Bartmess
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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Individual Reactions

C3H5- + Hydrogen cation = Cyclopropane

By formula: C3H5- + H+ = C3H6

Quantity Value Units Method Reference Comment
Δr1716. ± 10.kJ/molAVGN/AAverage of 5 out of 7 values; Individual data points
Quantity Value Units Method Reference Comment
Δr1676. ± 10.kJ/molAVGN/AAverage of 3 out of 6 values; Individual data points

Hydrogen bromide + Cyclopropane = Propane, 1-bromo-

By formula: HBr + C3H6 = C3H7Br

Quantity Value Units Method Reference Comment
Δr-107.8 ± 1.3kJ/molCmLacher, Kianpour, et al., 1957gas phase; ALS
Δr-94.94 ± 0.65kJ/molCmLacher, Walden, et al., 1950gas phase; Heat of hydrobromination; ALS

Propane, 1,3-diiodo- = Cyclopropane + Iodine

By formula: C3H6I2 = C3H6 + I2

Quantity Value Units Method Reference Comment
Δr77. ± 17.kJ/molEqkBenson and Amano, 1962gas phase; ALS

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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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 18855

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References

Go To: Top, 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.

Lacher, Kianpour, et al., 1957
Lacher, J.R.; Kianpour, A.; Park, J.D., Reaction heats of organic halogen compounds. X. Vapor phase heats of hydrobromination of cyclopropane and propylene, J. Phys. Chem., 1957, 61, 1124-1125. [all data]

Lacher, Walden, et al., 1950
Lacher, J.R.; Walden, C.H.; Lea, K.R.; Park, J.D., Vapor phase heats of hydrobromination of cyclopropane and propylene, J. Am. Chem. Soc., 1950, 72, 331-333. [all data]

Benson and Amano, 1962
Benson, S.W.; Amano, A., Thermodynamics of iodine addition to ethylene, propylene, and cyclopropane, J. Chem. Phys., 1962, 36, 3464-3471. [all data]


Notes

Go To: Top, Reaction thermochemistry data, Mass spectrum (electron ionization), References