titanium tetrafluoride


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-370.801kcal/molReviewChase, 1998Data last reviewed in September, 1967
Quantity Value Units Method Reference Comment
gas,1 bar75.229cal/mol*KReviewChase, 1998Data last reviewed in September, 1967

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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. to 6000.
A 24.59479
B 1.043651
C -0.280752
D 0.023850
E -0.418378
F -379.5801
G 102.3400
H -370.8000
ReferenceChase, 1998
Comment Data last reviewed in September, 1967

Condensed 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
Δfsolid-394.202kcal/molReviewChase, 1998Data last reviewed in September, 1967
Quantity Value Units Method Reference Comment
solid31.996cal/mol*KReviewChase, 1998Data last reviewed in September, 1967

Solid 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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. to 1500.
A 26.15251
B 20.70290
C -13.53070
D 3.288961
E -0.346841
F -403.9749
G 56.09431
H -394.2010
ReferenceChase, 1998
Comment Data last reviewed in September, 1967

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

Fluorine anion + titanium tetrafluoride = (Fluorine anion • titanium tetrafluoride)

By formula: F- + F4Ti = (F- • F4Ti)

Quantity Value Units Method Reference Comment
Δr86.3 ± 3.8kcal/molTDAsBoltalina, Borshchevskii, et al., 1992gas phase; Critical review; value altered from reference due to conversion from electron convention to ion convention
Δr86.0 ± 5.3kcal/molTDEqBoltalina, Borshchevskii, et al., 1991gas phase; Fluoride Affinity: 30.3 kcal/mol < AlF3 (Data at 0 K); value altered from reference due to conversion from electron convention to ion convention

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

Electron affinity determinations

EA (eV) Method Reference Comment
2.50 ± 0.22R-ABoltalina, Borshchevskii, et al., 1991value altered from reference due to conversion from electron convention to ion convention

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, 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.

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

Boltalina, Borshchevskii, et al., 1991
Boltalina, O.V.; Borshchevskii, A.Y.; Sidorov, L.N.; Chepurnykh, V.N., Enthalpy of the Formation of TiF5- Anion in a Gas Phase, Zh. Fiz. Khim. SSSR, 1991, 65, 928. [all data]


Notes

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