Cyclopropane, tetramethylmethylene-


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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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Individual Reactions

Cyclopropane, tetramethylmethylene- = Cyclopropane, 1,1-dimethyl-2-(1-methylethylidene)

By formula: C8H14 = C8H14

Quantity Value Units Method Reference Comment
Δr-21.7 ± 0.63kJ/molEqkCrawford and Tokunaga, 1974gas phase

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 compiled by: Sharon G. Lias and Joel F. Liebman

Ionization energy determinations

IE (eV) Method Reference Comment
9.22PEKindermann, Poppek, et al., 1990Vertical value

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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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 D.HENNEBERG, MAX-PLANCK INSTITUTE, MULHEIM, WEST GERMANY
NIST MS number 63080

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References

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics 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.

Crawford and Tokunaga, 1974
Crawford, R.J.; Tokunaga, H., Thermolysis of 3,3,5,5-tetramethyl-4-methylene-1-pyrazoline and the thermal isomerization of some alkylidenecyclopropanes, Can. J. Chem., 1974, 52, 4033-4039. [all data]

Kindermann, Poppek, et al., 1990
Kindermann, M.K.; Poppek, R.; Rademacher, P.; Fub, A.; Quast, H., Gas-phase thermolysis of 4-substituted 3,5-dihydro-3,3,5,5-tetramethyl-4H-pyrazoles studied by photoelectron spectroscopy and flash vacuum pyrolysis, Chem. Ber., 1990, 123, 1161. [all data]


Notes

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