ClO4 anion
- Formula: ClO4-
- Molecular weight: 99.451
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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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
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Individual Reactions
ClO4- + = HClO4
By formula: ClO4- + H+ = HClO4
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 299.9 ± 5.7 | kcal/mol | IMRB | Meyer and Kass, 2010 | gas phase; B |
ΔrH° | 292. ± 12. | kcal/mol | Acid | Marcus, 1987 | gas phase; Acidity seems too strong by ca. 10 kcal/mol. Other lattice energetics ( Mallouk, Rosenthal, et al., 1984, Finch, Gates, et al., 1977) are also too stable for anions.; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 286. ± 12. | kcal/mol | H-TS | Marcus, 1987 | gas phase; Acidity seems too strong by ca. 10 kcal/mol. Other lattice energetics ( Mallouk, Rosenthal, et al., 1984, Finch, Gates, et al., 1977) are also too stable for anions.; B |
By formula: ClO4- + H2O = (ClO4- • H2O)
Bond type: Hydrogen bond (negative ion to hydride)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 11.8 ± 1.5 | kcal/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° | 4.80 ± 0.30 | kcal/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B,M |
By formula: ClO4- + O2S = (ClO4- • O2S)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrG° | 5.70 ± 0.10 | kcal/mol | TDAs | Banic and Iribarne, 1985 | gas phase; B |
Free energy of reaction
ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
5.7 | 290. | HPMS | Banic and Iribarne, 1985 | gas phase; electric fields; M |
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.
Meyer and Kass, 2010
Meyer, M.M.; Kass, S.R.,
Experimental and Theoretical Gas-Phase Acidities, Bond Dissociation Energies, and Heats of Formation of HClOx, x=1-4,
J. Phys. Chem. A, 2010, 114, 12, 4086-4092, https://doi.org/10.1021/jp100888k
. [all data]
Marcus, 1987
Marcus, Y.,
The Thermodynamics of Solvation of Ions. 2. The Enthalpy of Hydration at 298.15K,
J. Chem. Soc. Farad. Trans. I, 1987, 83, 2, 339, https://doi.org/10.1039/f19878300339
. [all data]
Mallouk, Rosenthal, et al., 1984
Mallouk, T.E.; Rosenthal, G.L.; Muller, G.; Brusasco, R.; Bartlett, N.,
Fluoride ion affinities of GeF4 and BF4 from thermodynamic and structural data for (SF2)2GeF6, ClO2GeF5, and ClO2BF4,
Inorg. Chem., 1984, 23, 3167. [all data]
Finch, Gates, et al., 1977
Finch, A.; Gates, P.N.; Peake, S.J.,
Thermochemistry of polyhalides. III. Cesium and rubidium tetrachloroiodates,
J. Inorg. Nucl. Chem., 1977, 39, 2135. [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]
Banic and Iribarne, 1985
Banic, C.M.; Iribarne, J.V.,
Equilibrium Constants for Clustering of Neutral Molecules about Gaseous Ions,
J. Chem. Phys., 1985, 83, 12, 6432, https://doi.org/10.1063/1.449543
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
T Temperature 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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