Butanedioic acid, methylene-, dimethyl ester


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

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Individual Reactions

C7H9O4- + Hydrogen cation = Butanedioic acid, methylene-, dimethyl ester

By formula: C7H9O4- + H+ = C7H10O4

Quantity Value Units Method Reference Comment
Δr1458. ± 17.kJ/molIMRBChou, Dahlke, et al., 1993gas phase; Acid: CH2=C(CO2Me)CH2CO2Me. Between MeSH, tBuSH.

Gas Chromatography

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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

Kovats' RI, non-polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
CapillaryUltra-1100.1061.Herrmann, Dufka, et al., 198625. m/0.20 mm/0.32 μm, N2
CapillaryUltra-1125.1059.Herrmann, Dufka, et al., 198625. m/0.20 mm/0.32 μm, N2
CapillaryUltra-1150.1057.Herrmann, Dufka, et al., 198625. m/0.20 mm/0.32 μm, N2
CapillaryUltra-175.1065.Herrmann, Dufka, et al., 198625. m/0.20 mm/0.32 μm, N2

Van Den Dool and Kratz RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryVF-5MS1096.5Tret'yakov, 200830. m/0.25 mm/0.25 μm, He; Program: Multi-step temperature program; T(initial)=60C; T(final)=270C

References

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

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]

Herrmann, Dufka, et al., 1986
Herrmann, F.; Dufka, O.; Churacek, J., Fused-Silica Capillary Gas Chromatography-Mass Spectrometry of Some Dicarboxylic Acids Present in Condensation-Type Polymers I. Dimethyl Esters, J. Chromatogr., 1986, 360, 79-88, https://doi.org/10.1016/S0021-9673(00)91653-4 . [all data]

Tret'yakov, 2008
Tret'yakov, K.V., Retention Data. NIST Mass Spectrometry Data Center., NIST Mass Spectrometry Data Center, 2008. [all data]


Notes

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