Ethene, 1,1-dimethoxy-
- Formula: C4H8O2
- Molecular weight: 88.1051
- IUPAC Standard InChI: InChI=1S/C4H8O2/c1-4(5-2)6-3/h1H2,2-3H3
- IUPAC Standard InChIKey: FJTRNRFAIZEJJJ-UHFFFAOYSA-N
- CAS Registry Number: 922-69-0
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
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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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -280.7 ± 3.8 | kJ/mol | Cm | Guthrie and Liu, 1995 | Heat of hydrolysis |
Condensed 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°liquid | -316.1 ± 3.6 | kJ/mol | Cm | Guthrie and Liu, 1995 | Heat of hydrolysis |
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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔvapH° | 35.4 ± 1.2 | kJ/mol | V | Guthrie and Liu, 1995 | Heat of hydrolysis; ALS |
| ΔvapH° | 35.4 | kJ/mol | N/A | Guthrie and Liu, 1995 | DRB |
Enthalpy of vaporization
| ΔvapH (kJ/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 39.6 | 333. | Guthrie and Liu, 1995, 2 | Based on data from 303. to 362. 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 by: 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
2 +
=
+ 2
By formula: 2H2O + C4H8O2 = C2H4O2 + 2CH4O
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -74.4 ± 3.6 | kJ/mol | Cm | Guthrie and Liu, 1995 | liquid phase; Heat of hydrolysis |
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 by: Edward P. Hunter and Sharon G. Lias
View reactions leading to C4H8O2+ (ion structure unspecified)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Proton affinity (review) | 957.0 | kJ/mol | N/A | Hunter and Lias, 1998 | |
| Quantity | Value | Units | Method | Reference | Comment |
| Gas basicity | 928.1 | kJ/mol | N/A | Hunter and Lias, 1998 |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Guthrie and Liu, 1995
Guthrie, J.P.; Liu, Z.,
The enols of acetic acid and methyl acetate,
Can. J. Chem., 1995, 73, 1395-2398. [all data]
Guthrie and Liu, 1995, 2
Guthrie, J.P.; Liu, Z.,
The enols of acetic acid and methyl acetate,
Can. J. Chem., 1995, 73, 1395-1398. [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]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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