2-Propanone, 1,1,1,3,3-pentafluoro-


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

Chlorine anion + 2-Propanone, 1,1,1,3,3-pentafluoro- = (Chlorine anion • 2-Propanone, 1,1,1,3,3-pentafluoro-)

By formula: Cl- + C3HF5O = (Cl- • C3HF5O)

Quantity Value Units Method Reference Comment
Δr26.1 ± 1.0kcal/molTDAsBofdanov and McMahon, 2002gas phase; B
Δr23.4kcal/molICRLarson and McMahon, 1984gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
Quantity Value Units Method Reference Comment
Δr23.9cal/mol*KN/ALarson and McMahon, 1984gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
Quantity Value Units Method Reference Comment
Δr17.2 ± 1.0kcal/molTDAsBofdanov and McMahon, 2002gas phase; B
Δr16.3 ± 2.0kcal/molIMRELarson and McMahon, 1984, 2gas phase; B,M,M

C3F5O- + Hydrogen cation = 2-Propanone, 1,1,1,3,3-pentafluoro-

By formula: C3F5O- + H+ = C3HF5O

Quantity Value Units Method Reference Comment
Δr337.5 ± 4.2kcal/molG+TSFarid and McMahon, 1980gas phase; Between FCH2CO2H, HCl; nearer to HCl; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Δr330.7 ± 4.1kcal/molIMRBFarid and McMahon, 1980gas phase; Between FCH2CO2H, HCl; nearer to HCl; value altered from reference due to change in acidity scale; B

CN- + 2-Propanone, 1,1,1,3,3-pentafluoro- = (CN- • 2-Propanone, 1,1,1,3,3-pentafluoro-)

By formula: CN- + C3HF5O = (CN- • C3HF5O)

Quantity Value Units Method Reference Comment
Δr25.8 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr26.4cal/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr17.9 ± 2.3kcal/molIMRELarson and McMahon, 1987gas phase; B,M

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

De-protonation reactions

C3F5O- + Hydrogen cation = 2-Propanone, 1,1,1,3,3-pentafluoro-

By formula: C3F5O- + H+ = C3HF5O

Quantity Value Units Method Reference Comment
Δr337.5 ± 4.2kcal/molG+TSFarid and McMahon, 1980gas phase; Between FCH2CO2H, HCl; nearer to HCl; value altered from reference due to change in acidity scale
Quantity Value Units Method Reference Comment
Δr330.7 ± 4.1kcal/molIMRBFarid and McMahon, 1980gas phase; Between FCH2CO2H, HCl; nearer to HCl; value altered from reference due to change in acidity scale

References

Go To: Top, Reaction thermochemistry data, 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.

Bofdanov and McMahon, 2002
Bofdanov, B.; McMahon, T.B., Structures, Thermochemistry, and Infrared Spectra of Chloride Ion-Fluorinated Acetone Complexes and Neutral Fluorinated Acetones in the Gas Phase: Experiment and Theory, Int. J. Mass Spectrom., 2002, 219, 3, 593-613, https://doi.org/10.1016/S1387-3806(02)00745-5 . [all data]

Larson and McMahon, 1984
Larson, J.W.; McMahon, T.B., Gas phase negative ion chemistry of alkylchloroformates, Can. J. Chem., 1984, 62, 675. [all data]

French, Ikuta, et al., 1982
French, M.A.; Ikuta, S.; Kebarle, P., Hydrogen bonding of O-H and C-H hydrogen donors to Cl-. Results from mass spectrometric measurement of the ion-molecule equilibria RH + Cl- = RHCl-, Can. J. Chem., 1982, 60, 1907. [all data]

Larson and McMahon, 1984, 2
Larson, J.W.; McMahon, T.B., Fluoride and chloride affinities of main group oxides, fluorides, oxofluorides, and alkyls. Quantitative scales of lewis acidities from ion cyclotron resonance halide-exchange equilibria, J. Phys. Chem., 1984, 88, 1083. [all data]

Farid and McMahon, 1980
Farid, R.; McMahon, T.B., The gas phase acidities of fluorinated acetones. An ICR investigation of the role of fluorine substituents in the stabilization of planar carbanions, Can. J. Chem., 1980, 58, 2307. [all data]

Larson and McMahon, 1987
Larson, J.W.; McMahon, T.B., Hydrogen bonding in gas phase anions. The energetics of interaction between cyanide ion and bronsted acids, J. Am. Chem. Soc., 1987, 109, 6230. [all data]

Payzant, Yamdagni, et al., 1971
Payzant, J.D.; Yamdagni, R.; Kebarle, P., Hydration of CN-, NO2-, NO3-, and HO- in the gas phase, Can. J. Chem., 1971, 49, 3308. [all data]


Notes

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