Ethene, methoxy-

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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 by: Glushko Thermocenter, Russian Academy of Sciences, Moscow

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
79.50298.15Cruickshank F.R., 1969 
79.91300.
99.16400.
115.90500.
130.12600.
151.04800.
166.941000.
190.791500.

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
Tboil278.7KN/AAldrich Chemical Company Inc., 1990BS

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Method Reference Comment
23.4293.AStephenson and Malanowski, 1987Based on data from 278. - 412. K.; AC

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

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

C3H5O- + Hydrogen cation = Ethene, methoxy-

By formula: C3H5O- + H+ = C3H6O

Quantity Value Units Method Reference Comment
Δr1720. ± 50.kJ/molCIDTGraul and Squires, 1990gas phase; B
Quantity Value Units Method Reference Comment
Δr1690. ± 50.kJ/molH-TSGraul and Squires, 1990gas phase; B

C3H7ClO = Ethene, methoxy- + Hydrogen chloride

By formula: C3H7ClO = C3H6O + HCl

Quantity Value Units Method Reference Comment
Δr71.1kJ/molEqkCruickshank and Benson, 1969gas phase; ALS

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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to C3H6O+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)8.95 ± 0.01eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)859.2kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity830.3kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
8.96PEPlanckaert, Doucet, et al., 1974LLK
8.95PEMines and Thompson, 1973LLK
8.93 ± 0.02PIWatanabe, Nakayama, et al., 1962RDSH
9.05PEBock, Wagner, et al., 1974Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C2H3O+11.44CH3EIBernecker and Long, 1961RDSH

De-protonation reactions

C3H5O- + Hydrogen cation = Ethene, methoxy-

By formula: C3H5O- + H+ = C3H6O

Quantity Value Units Method Reference Comment
Δr1720. ± 50.kJ/molCIDTGraul and Squires, 1990gas phase; B
Quantity Value Units Method Reference Comment
Δr1690. ± 50.kJ/molH-TSGraul and Squires, 1990gas phase; B

IR Spectrum

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Data compiled by: Coblentz Society, Inc.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director


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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Additional Data

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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 133

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References

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, 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.

Cruickshank F.R., 1969
Cruickshank F.R., Thermodynamic properties of methyl vinyl ether, alpha-chloroethyl methyl ether, and iodomethyl methyl ether. Evidence for nonbonded electrostatic interactions, J. Am. Chem. Soc., 1969, 91, 2487-2492. [all data]

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 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]

Graul and Squires, 1990
Graul, S.T.; Squires, R.R., Gas-Phase Acidities Derived from Threshold Energies for Activated Reactions, J. Am. Chem. Soc., 1990, 112, 7, 2517, https://doi.org/10.1021/ja00163a007 . [all data]

Cruickshank and Benson, 1969
Cruickshank, F.R.; Benson, S.W., Some thermochemical properties of methyl vinyl ether, α-chloroethyl methyl ether, and iodomethyl methyl ether. Evidence for nonbonded electrostatic interactions, J. Am. Chem. Soc., 1969, 91, 2487-2490. [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Planckaert, Doucet, et al., 1974
Planckaert, A.A.; Doucet, J.; Sandorfy, C., Comparative study of the vacuum ultraviolet absorption and photoelectron spectra of some simple ethers and thioethers, J. Chem. Phys., 1974, 60, 4846. [all data]

Mines and Thompson, 1973
Mines, G.W.; Thompson, H.W., Photoelectron spectra of vinyl and allyl halides, Spectrochim. Acta Part A, 1973, 29, 1377. [all data]

Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J., Ionization potentials of some molecules, J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]

Bock, Wagner, et al., 1974
Bock, H.; Wagner, G.; Wittel, K.; Sauer, J.; Seebach, D., Photoelektronenspektren und molekuleigenschaften. XXXII. n/π-konjugation in heterosubstituierten athylenen, Chem. Ber., 1974, 107, 1869. [all data]

Bernecker and Long, 1961
Bernecker, R.R.; Long, F., Some organic positive ions and their parent radicals and molecules, J. Phys. Chem., 1961, 65, 1565. [all data]


Notes

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