Chlorodifluoromethyl radical
- Formula: CClF2
- Molecular weight: 85.461
- IUPAC Standard InChIKey: QPAXMPYBNSHKAK-UHFFFAOYSA-N
- CAS Registry Number: 1691-89-0
- Chemical structure:
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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 as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
B - John E. Bartmess
View reactions leading to CClF2+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°(+) ion | 133. | kcal/mol | N/A | N/A |
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
>1.86999 | EIAE | Illenberger, Baumgartel, et al., 1979 | From CF3Cl. G3MP2B3 calculations indicate an EA of ca. 2.05 eV.; B |
<1.75581 | D-EA | Paulino and Squires, 1991 | Probably CF2..Cl-, non-covalent.; B |
1.60 ± 0.30 | NBAE | Dispert and Lacmann, 1978 | From CF2Cl2; B |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
13. ± 1. | DER | Langford and Harris, 1990 | LL |
9.0 ± 0.5 | CIEL | Griffiths, Harris, et al., 1989 | LL |
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.
Illenberger, Baumgartel, et al., 1979
Illenberger, T.; Baumgartel, H.; Scheunemann, H.,
Negative Ion Formation in CF2Cl2, CF3Cl, and CFCl3 Following Low Energy (0-10eV) Impact with Near Monoenergetic Electrons,
Chem. Phys., 1979, 37, 1, 21, https://doi.org/10.1016/0301-0104(79)80003-8
. [all data]
Paulino and Squires, 1991
Paulino, J.A.; Squires, R.R.,
Carbene Anion Complexes - Unusual Structural and Thermochemical Features of alpha-Halocarbanions in the Gas Phase,
J. Am. Chem. Soc., 1991, 113, 5, 1845, https://doi.org/10.1021/ja00005a067
. [all data]
Dispert and Lacmann, 1978
Dispert, H.; Lacmann, K.,
Negative ion formation in collisions between potassium and fluoro- and chloromethanes: Electron affinities and bond dissociation energies,
Int. J. Mass Spectrom. Ion Phys., 1978, 28, 49. [all data]
Langford and Harris, 1990
Langford, M.L.; Harris, F.M.,
Experimental determination of the energies required to ionize the ions CFCl+, CFBr+, CClBr+, CF2Cl+, CF2Br+, CCl2F+, CBr2F+, and CBr2Cl+,
Int. J. Mass Spectrom. Ion Phys., 1990, 96, 111. [all data]
Griffiths, Harris, et al., 1989
Griffiths, W.J.; Harris, F.M.; Barton, J.D.,
Experimental determination of the single-ionization energies of two environmentally important free radicals, CF2Cl and CFCl2,
Rapid Commun. Mass Spectrom., 1989, 3, 283. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
EA Electron affinity - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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