iron trifluoride


Gas phase 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.

Quantity Value Units Method Reference Comment
Δfgas-820.90kJ/molReviewChase, 1998Data last reviewed in September, 1965
Quantity Value Units Method Reference Comment
gas,1 bar304.11J/mol*KReviewChase, 1998Data last reviewed in September, 1965

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. to 6000.
A 79.15291
B 3.357782
C -0.902552
D 0.076636
E -1.343094
F -849.1428
G 391.3785
H -820.9008
ReferenceChase, 1998
Comment Data last reviewed in September, 1965

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:
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess

Electron affinity determinations

EA (eV) Method Reference Comment
3.62 ± 0.13R-ABorshchevskii, Boltalina, et al., 1988Fluoride Affinity: FeF2 < FeF3 by 22.6±2.6 kcal/mol.; value altered from reference due to conversion from electron convention to ion convention; B

Ionization energy determinations

IE (eV) Method Reference Comment
12.5 ± 0.3EIZmbov and Margrave, 1967RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
FeF+16.0 ± 0.3?EIZmbov and Margrave, 1967RDSH
FeF2+13.7 ± 0.3FEIZmbov and Margrave, 1967RDSH
Fe+20.5 ± 0.3?EIZmbov and Margrave, 1967RDSH

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 by: 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

Fluorine anion + F3Fe = (Fluorine anion • F3Fe)

By formula: F- + F3Fe = (F- • F3Fe)

Quantity Value Units Method Reference Comment
Δr453. ± 15.kJ/molTDAsBoltalina, Borshchevskii, et al., 1992gas phase; Critical review; value altered from reference due to conversion from electron convention to ion convention
Δr439. ± 14.kJ/molTDEqSorokin, Sidorov, et al., 1981gas phase; Fluoride Affinity: 14.9 kcal < AlF3; value altered from reference due to conversion from electron convention to ion convention
Δr456. ± 14.kJ/molTDEqChilingarov, Korobov, et al., 1984gas phase; Fluoride Affinity: 8.8 kcal < AlF3; value altered from reference due to conversion from electron convention to ion convention

F4Fe- + F3Fe = F7Fe2-

By formula: F4Fe- + F3Fe = F7Fe2-

Quantity Value Units Method Reference Comment
Δr189. ± 24.kJ/molTDAsSidirov, Borshchevsky, et al., 1986gas phase; value altered from reference due to conversion from electron convention to ion convention
Δr204. ± 4.2kJ/molTDAsSorokin, Sidorov, et al., 1981gas phase; ΔHf(A-) at 0 K; value altered from reference due to conversion from electron convention to ion convention

References

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Ion clustering data, Notes

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

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Borshchevskii, Boltalina, et al., 1988
Borshchevskii, A.Ya.; Boltalina, O.V.; Sorokin, I.D.; Sidorov, L.N., Thermochemical Quantities for Gas Phase Iron, Uranium, and Molybdenum Fluorides, and Their Negative Ions., J. Chem. Thermodyn., 1988, 20, 5, 523, https://doi.org/10.1016/0021-9614(88)90080-8 . [all data]

Zmbov and Margrave, 1967
Zmbov, K.F.; Margrave, J.L., Mass spectrometric studies at high temperatures. XV.Sublimation pressures of chromium, manganese and iron trifluoridcs and the heat of dissociation of Fe,F,(g), J. Inorg. Nucl. Chem., 1967, 29, 673. [all data]

Boltalina, Borshchevskii, et al., 1992
Boltalina, O.V.; Borshchevskii, A.Y.; Sidorov, L.N., Thermochemistry of 3d Elements Fluorides and Their Negative Ions in Gas Phase, Russ. J. Phys. Chem., 1992, 66, 1223. [all data]

Sorokin, Sidorov, et al., 1981
Sorokin, I.D.; Sidorov, L.N.; Nikitin, M.I.; Skokan, E.V., Mass-spectrometric determination of the enthalpies of dissociation of gaseous complex fluorides into neutral and charged particles. V. Heats of formation of FeF3- and FeF4-, Int. J. Mass Spectrom. Ion Phys., 1981, 41, 45. [all data]

Chilingarov, Korobov, et al., 1984
Chilingarov, N.S.; Korobov, M.V.; Sidirov, L.N.; Mitkin, V.N.; Shipachev, V.A.; Zemskov, S.V., Electron affinity of rhodium tetrafluoride, J. Chem. Thermodyn., 1984, 16, 965. [all data]

Sidirov, Borshchevsky, et al., 1986
Sidirov, L.N.; Borshchevsky, A.Ya.; Boltalina, O.V.; Sorokin, I.D.; Skokan, E.V., Electron affinities of gaseous iron fluorides and dimers, Int. J. Mass Spectrom. Ion Processes, 1986, 73, 1. [all data]


Notes

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