Chlorine anion
- Formula: Cl-
- Molecular weight: 35.454
- IUPAC Standard InChI: InChI=1S/ClH/h1H/p-1
- IUPAC Standard InChIKey: VEXZGXHMUGYJMC-UHFFFAOYSA-M
- CAS Registry Number: 16887-00-6
- Chemical structure:
This structure is also available as a 2d Mol file - Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Options:
Gas phase ion energetics 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 by: John E. Bartmess
Protonation reactions
+
=
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 333.40 | kcal/mol | N/A | Martin and Hepburn, 1998 | gas phase; Given: ΔHacid(0K)=116288.7±0.6 cm-1, or 332.486±0.002 kcal/mol |
| ΔrH° | 333.6 ± 2.1 | kcal/mol | G+TS | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
| ΔrH° | 329.10 | kcal/mol | N/A | Check, Faust, et al., 2001 | gas phase; FeCC-(q); ; ΔS(EA)=5.0 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 328.10 ± 0.10 | kcal/mol | H-TS | Martin and Hepburn, 1998 | gas phase; Given: ΔHacid(0K)=116288.7±0.6 cm-1, or 332.486±0.002 kcal/mol |
| ΔrG° | 328.3 ± 2.0 | kcal/mol | IMRE | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
| ΔrG° | 323.70 | kcal/mol | N/A | Check, Faust, et al., 2001 | gas phase; FeCC-(q); ; ΔS(EA)=5.0 |
References
Go To: Top, 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.
Martin and Hepburn, 1998
Martin, J.D.D.; Hepburn, J.W.,
Determination of bond dissociation energies by threshold ion-pair production spectroscopy: An improved D-0(HCl),
J. Chem. Phys., 1998, 109, 19, 8139-8142, https://doi.org/10.1063/1.477476
. [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]
Check, Faust, et al., 2001
Check, C.E.; Faust, T.O.; Bailey, J.M.; Wright, B.J.; Gilbert, T.M.; Sunderlin, L.S.,
Addition of Polarization and Diffuse Functions to the LANL2DZ Basis Set for P-Block Elements,
J. Phys. Chem. A,, 2001, 105, 34, 8111, https://doi.org/10.1021/jp011945l
. [all data]
Notes
Go To: Top, Gas phase ion energetics 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
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.