CF2=CF2..Br anion
- Formula: C2BrF4-
- Molecular weight: 179.920
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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 by: John E. Bartmess
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Individual Reactions
+
= C2BrF4-
By formula: Br- + C2F4 = C2BrF4-
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 7.10 ± 0.50 | kcal/mol | TDAs | Hiraoka, Mochizuki, et al., 2008 | gas phase; The experimental HOF of C2F4 has been questioned as being too positive: Curtiss, Raghavachari, et al., 7374, 11CHA/DEN |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 2.33 ± 0.50 | kcal/mol | TDAs | Hiraoka, Mochizuki, et al., 2008 | gas phase; The experimental HOF of C2F4 has been questioned as being too positive: Curtiss, Raghavachari, et al., 7374, 11CHA/DEN |
C2BrF4- + 2 = C4BrF8-
By formula: C2BrF4- + 2C2F4 = C4BrF8-
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 6.00 ± 0.50 | kcal/mol | TDAs | Hiraoka, Mochizuki, et al., 2008 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 0.93 ± 0.50 | kcal/mol | TDAs | Hiraoka, Mochizuki, et al., 2008 | gas phase |
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.
Hiraoka, Mochizuki, et al., 2008
Hiraoka, K.; Mochizuki, N.; Wada, A.; Okada, H.; Ichikawa, T.; Asakawa, D.; Yazawa, I.,
Gas-phase ion/molecule reactions in C2F4,
Int. J. Mass Spectrom., 2008, 272, 1, 22-28, https://doi.org/10.1016/j.ijms.2007.12.013
. [all data]
Curtiss, Raghavachari, et al., 7374
Curtiss, L.A.; Raghavachari, K.; Redfern, P.C.; Pople, J.A.,
Assesment of Gaussian-3 and density Functional Theories for a larger experimental test set, J. Chem. Phys. 112 (2000), 7374. [all data]
Notes
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- 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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