iron trifluoride
- Formula: F3Fe
- Molecular weight: 112.840
- CAS Registry Number: 7783-50-8
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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 |
---|---|---|---|---|---|
ΔfH°gas | -820.90 | kJ/mol | Review | Chase, 1998 | Data last reviewed in September, 1965 |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 304.11 | J/mol*K | Review | Chase, 1998 | Data 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 |
Reference | Chase, 1998 |
Comment | Data last reviewed in September, 1965 |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Ion clustering data, References, Notes
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 ± 0.13 | R-A | Borshchevskii, Boltalina, et al., 1988 | Fluoride 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 ± 0.3 | EI | Zmbov and Margrave, 1967 | RDSH |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
FeF+ | 16.0 ± 0.3 | ? | EI | Zmbov and Margrave, 1967 | RDSH |
FeF2+ | 13.7 ± 0.3 | F | EI | Zmbov and Margrave, 1967 | RDSH |
Fe+ | 20.5 ± 0.3 | ? | EI | Zmbov and Margrave, 1967 | RDSH |
Ion clustering data
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, References, Notes
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
By formula: F- + F3Fe = (F- • F3Fe)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 453. ± 15. | kJ/mol | TDAs | Boltalina, Borshchevskii, et al., 1992 | gas phase; Critical review; value altered from reference due to conversion from electron convention to ion convention |
ΔrH° | 439. ± 14. | kJ/mol | TDEq | Sorokin, Sidorov, et al., 1981 | gas phase; Fluoride Affinity: 14.9 kcal < AlF3; value altered from reference due to conversion from electron convention to ion convention |
ΔrH° | 456. ± 14. | kJ/mol | TDEq | Chilingarov, Korobov, et al., 1984 | gas phase; Fluoride Affinity: 8.8 kcal < AlF3; value altered from reference due to conversion from electron convention to ion convention |
By formula: F4Fe- + F3Fe = F7Fe2-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 189. ± 24. | kJ/mol | TDAs | Sidirov, Borshchevsky, et al., 1986 | gas phase; value altered from reference due to conversion from electron convention to ion convention |
ΔrH° | 204. ± 4.2 | kJ/mol | TDAs | Sorokin, Sidorov, et al., 1981 | gas 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
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Ion clustering data, References
- Symbols used in this document:
AE Appearance energy EA Electron affinity S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔfH°gas Enthalpy of formation of gas at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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