Br2CH anion
- Formula: CHBr2-
- Molecular weight: 172.827
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Gas phase ion energetics 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
Electron affinity of neutral species
| EAneutral (eV) | Method | Reference | Comment |
|---|---|---|---|
| 1.706 ± 0.082 | IMRB | Born, Ingemann, et al., 2000 | between mCHO-nitrobenzene & 3,5-diCF3-nitrobenzene |
| 1.90 ± 0.20 | LPES | Vogelhuber, Wren, et al., 2011 | very poor Franck-Condon overlap; "estimate |
Protonation reactions
CHBr2- + =
By formula: CHBr2- + H+ = CH2Br2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 369.0 ± 3.1 | kcal/mol | G+TS | Born, Ingemann, et al., 2000 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 361.3 ± 3.0 | kcal/mol | IMRB | Born, Ingemann, et al., 2000 | gas phase |
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.
Born, Ingemann, et al., 2000
Born, M.; Ingemann, S.; Nibbering, N.M.M.,
Thermochemical properties of halogen-substituted methanes, methyl radicals, and carbenes in the gas phase,
Int. J. Mass Spectrom., 2000, 194, 2-3, 103-113, https://doi.org/10.1016/S1387-3806(99)00125-6
. [all data]
Vogelhuber, Wren, et al., 2011
Vogelhuber, K.M.; Wren, S.W.; McCoy, A.B.; Ervin, K.M.; Lineberger, W.C.,
Photoelectron spectra of dihalomethyl anions: Testing the limits of normal mode analysis,
J. Chem. Phys., 2011, 134, 18, 184306, https://doi.org/10.1063/1.3585606
. [all data]
Notes
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- 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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