ICH2CO2 anion
- Formula: C2H2IO2-
- Molecular weight: 184.9411
- IUPAC Standard InChI: InChI=1S/C2H3IO2/c3-1-2(4)5/h1H2,(H,4,5)/p-1
- IUPAC Standard InChIKey: JDNTWHVOXJZDSN-UHFFFAOYSA-M
- CAS Registry Number: 152-34-1
- Chemical structure:
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Reaction thermochemistry data
Go To: Top, References, Notes
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
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
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
) +
= (
• 3
)
By formula: (C2H2IO2- • 2H2O) + H2O = (C2H2IO2- • 3H2O)
Bond type: Hydrogen bond (negative ion to hydride)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 47.3 ± 6.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 18.0 ± 1.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B,M |
( •
) +
= (
• 2
)
By formula: (C2H2IO2- • H2O) + H2O = (C2H2IO2- • 2H2O)
Bond type: Hydrogen bond (negative ion to hydride)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 51.5 ± 6.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 22.2 ± 1.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B,M |
+
= (
•
)
By formula: C2H2IO2- + H2O = (C2H2IO2- • H2O)
Bond type: Hydrogen bond (negative ion to hydride)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 59.4 ± 6.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 30.1 ± 1.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B,M |
+
=
By formula: C2H2IO2- + H+ = C2H3IO2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1400. ± 9.2 | kJ/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1371. ± 8.4 | kJ/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase; B |
References
Go To: Top, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
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]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
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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