Benzonitrile, pentafluoro-

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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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

Fluorine anion + Benzonitrile, pentafluoro- = (Fluorine anion • Benzonitrile, pentafluoro-)

By formula: F- + C7F5N = (F- • C7F5N)

Quantity Value Units Method Reference Comment
Δr39.3 ± 2.0kcal/molIMREDillow and Kebarle, 1988gas phase; Anchored to C6F6..F- in Hiraoka, Mizuse, et al., 1987; B,M
Quantity Value Units Method Reference Comment
Δr20.1cal/mol*KN/ADillow and Kebarle, 1988gas phase; switching reaction,Thermochemical ladder(F-)C6F6, Entropy change calculated or estimated; Hiraoka, Mizuse, et al., 1987; M
Quantity Value Units Method Reference Comment
Δr30.8 ± 2.0kcal/molIMREDillow and Kebarle, 1988gas phase; Anchored to C6F6..F- in Hiraoka, Mizuse, et al., 1987; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
30.8423.PHPMSDillow and Kebarle, 1988gas phase; switching reaction,Thermochemical ladder(F-)C6F6, Entropy change calculated or estimated; Hiraoka, Mizuse, et al., 1987; M

Chlorine anion + Benzonitrile, pentafluoro- = (Chlorine anion • Benzonitrile, pentafluoro-)

By formula: Cl- + C7F5N = (Cl- • C7F5N)

Quantity Value Units Method Reference Comment
Δr19.9cal/mol*KPHPMSChowdhury and Kebarle, 1986gas phase; M
Quantity Value Units Method Reference Comment
Δr13.5 ± 1.6kcal/molTDAsChowdhury and Kebarle, 1986gas phase; B

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 as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
B - John E. Bartmess

Electron affinity determinations

EA (eV) Method Reference Comment
1.08 ± 0.11TDEqChowdury, Grimsrud, et al., 1986ΔGea(423 K) = -27.0±1.0 kcal/mol, ΔSea = +4.4 eu; B

Ionization energy determinations

IE (eV) Method Reference Comment
10.1PEMaier, Marthaler, et al., 1980Vertical value; LLK
10.45PENeijzen and DeLange, 1978Vertical value; LLK

Ion clustering 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:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

Chlorine anion + Benzonitrile, pentafluoro- = (Chlorine anion • Benzonitrile, pentafluoro-)

By formula: Cl- + C7F5N = (Cl- • C7F5N)

Quantity Value Units Method Reference Comment
Δr19.9cal/mol*KPHPMSChowdhury and Kebarle, 1986gas phase; M
Quantity Value Units Method Reference Comment
Δr13.5 ± 1.6kcal/molTDAsChowdhury and Kebarle, 1986gas phase; B

Fluorine anion + Benzonitrile, pentafluoro- = (Fluorine anion • Benzonitrile, pentafluoro-)

By formula: F- + C7F5N = (F- • C7F5N)

Quantity Value Units Method Reference Comment
Δr39.3 ± 2.0kcal/molIMREDillow and Kebarle, 1988gas phase; Anchored to C6F6..F- in Hiraoka, Mizuse, et al., 1987; B,M
Quantity Value Units Method Reference Comment
Δr20.1cal/mol*KN/ADillow and Kebarle, 1988gas phase; switching reaction,Thermochemical ladder(F-)C6F6, Entropy change calculated or estimated; Hiraoka, Mizuse, et al., 1987; M
Quantity Value Units Method Reference Comment
Δr30.8 ± 2.0kcal/molIMREDillow and Kebarle, 1988gas phase; Anchored to C6F6..F- in Hiraoka, Mizuse, et al., 1987; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
30.8423.PHPMSDillow and Kebarle, 1988gas phase; switching reaction,Thermochemical ladder(F-)C6F6, Entropy change calculated or estimated; Hiraoka, Mizuse, et al., 1987; M

IR Spectrum

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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: Coblentz Society, Inc.

Condensed Phase Spectrum

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IR spectrum
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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

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Owner COBLENTZ SOCIETY
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin DOW CHEMICAL COMPANY
Source reference COBLENTZ NO. 7573
Date 1965/02/18
Name(s) 2,3,4,5,6-pentafluorobenzonitrile
State SOLUTION (10% CCl4 FOR 3800-1330, 10% CS2 FOR 1330-400 CM-1)
Instrument BECKMAN IR-9 (GRATING)
Instrument parameters ORDER CHANGES: 670, 1200, 2000 CM-1
Path length 0.010 CM, 0.011 CM
SPECTRAL CONTAMINATION DUE TO CS2 AROUND 650, AND AN UNKNOWN AROUND 400 CM-1
Resolution 2
Sampling procedure TRANSMISSION
Data processing DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS)
Boiling point 162 C

This IR spectrum is from the Coblentz Society's evaluated infrared reference spectra collection.


References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Dillow and Kebarle, 1988
Dillow, G.W.; Kebarle, P., Fluoride Affinities of Perfluorobenzenes C6F5X. Meisenheimer Complexes in the Gas Phase and Solution, J. Am. Chem. Soc., 1988, 110, 15, 4877, https://doi.org/10.1021/ja00223a001 . [all data]

Hiraoka, Mizuse, et al., 1987
Hiraoka, K.; Mizuse, S.; Yamabe, S., A Determination of the Stability and Structure of F-(C6H6) and F-(C6F6) Clusters, J. Chem. Phys., 1987, 86, 7, 4102, https://doi.org/10.1063/1.451920 . [all data]

Chowdhury and Kebarle, 1986
Chowdhury, S.; Kebarle, P., Role of Binding Energies in A-.B and A.B- Complexes in the Kinetics of Gas Phase Electron Transfer Reactions:A- + B = A + B- Involving Perfluoro Compounds: SF6, C6F11CF3, J. Chem. Phys., 1986, 85, 9, 4989, https://doi.org/10.1063/1.451687 . [all data]

Chowdury, Grimsrud, et al., 1986
Chowdury, S.; Grimsrud, E.P.; Heinis, T.; Kebarle, P., Electron affinities of perfluorobenzene and perfluorophenyl compounds, J. Am. Chem. Soc., 1986, 108, 3630. [all data]

Maier, Marthaler, et al., 1980
Maier, J.P.; Marthaler, O.; Mohraz, M., Decay of some substituted benzene cations in the B states in the gaseous phase, J. Chim. Phys., 1980, 77, 661. [all data]

Neijzen and DeLange, 1978
Neijzen, B.J.M.; DeLange, C.A., Photoelectron spectroscopy of mono-dicyanobenzenes their perfluoro derivatives, J. Electron Spectrosc. Relat. Phenom., 1978, 14, 187. [all data]


Notes

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