Cl2CHCO2 anion
- Formula: C2HCl2O2-
- Molecular weight: 127.935
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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 by: John E. Bartmess
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
By formula: C2HCl2O2- + H+ = C2H2Cl2O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1374. ± 8.8 | kJ/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrH° | 1374. ± 11. | kJ/mol | G+TS | Cumming and Kebarle, 1978 | gas phase |
ΔrH° | 1369. ± 8.8 | kJ/mol | G+TS | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1347. ± 8.4 | kJ/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrG° | 1347. ± 8.4 | kJ/mol | IMRE | Cumming and Kebarle, 1978 | gas phase |
ΔrG° | 1342. ± 8.4 | kJ/mol | IMRE | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
(C2HCl2O2- • ) + = (C2HCl2O2- • 2)
By formula: (C2HCl2O2- • H2O) + H2O = (C2HCl2O2- • 2H2O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 49.8 ± 6.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 20.5 ± 1.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K |
By formula: C2HCl2O2- + H2O = (C2HCl2O2- • H2O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 57.7 ± 6.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 28.5 ± 1.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry data, Ion clustering data, References, Notes
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
Electron affinity of neutral species
EAneutral (eV) | Method | Reference | Comment |
---|---|---|---|
4.26 ± 0.16 | D-EA | Caldwell, Renneboog, et al., 1989 |
Protonation reactions
By formula: C2HCl2O2- + H+ = C2H2Cl2O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1374. ± 8.8 | kJ/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrH° | 1374. ± 11. | kJ/mol | G+TS | Cumming and Kebarle, 1978 | gas phase |
ΔrH° | 1369. ± 8.8 | kJ/mol | G+TS | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1347. ± 8.4 | kJ/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase |
ΔrG° | 1347. ± 8.4 | kJ/mol | IMRE | Cumming and Kebarle, 1978 | gas phase |
ΔrG° | 1342. ± 8.4 | kJ/mol | IMRE | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
Ion clustering data
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References, Notes
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
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.
Clustering reactions
By formula: C2HCl2O2- + H2O = (C2HCl2O2- • H2O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 57.7 ± 6.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 28.5 ± 1.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K |
(C2HCl2O2- • ) + = (C2HCl2O2- • 2)
By formula: (C2HCl2O2- • H2O) + H2O = (C2HCl2O2- • 2H2O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 49.8 ± 6.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 20.5 ± 1.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K |
References
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Caldwell, Renneboog, et al., 1989
Caldwell, G.; Renneboog, R.; Kebarle, P.,
Gas Phase Acidities of Aliphatic Carboxylic Acids, Based on Measurements of Proton Transfer Equilibria,
Can. J. Chem., 1989, 67, 4, 661, https://doi.org/10.1139/v89-092
. [all data]
Cumming and Kebarle, 1978
Cumming, J.B.; Kebarle, P.,
Summary of gas phase measurements involving acids AH. Entropy changes in proton transfer reactions involving negative ions. Bond dissociation energies D(A-H) and electron affinities EA(A),
Can. J. Chem., 1978, 56, 1. [all data]
Fujio, McIver, et al., 1981
Fujio, M.; McIver, R.T., Jr.; Taft, R.W.,
Effects on the acidities of phenols from specific substituent-solvent interactions. Inherent substituent parameters from gas phase acidities,
J. Am. Chem. Soc., 1981, 103, 4017. [all data]
Blades, Klassen, et al., 1995
Blades, A.T.; Klassen, J.S.; Kebarle, P.,
Free Energies of Hydration in the Gas Phase on the Anions of Some Oxo Acids of C, N, S, P, Cl and I,
J. Am. Chem. Soc., 1995, 117, 42, 10563, https://doi.org/10.1021/ja00147a019
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References
- Symbols used in this document:
EAneutral Electron affinity of neutral species ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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