titanium tetrabromide
- Formula: Br4Ti
- Molecular weight: 367.483
- CAS Registry Number: 7789-68-6
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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 | -131.50 | kcal/mol | Review | Chase, 1998 | Data last reviewed in June, 1968 |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 95.263 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1968 |
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) | 1000. to 6000. |
---|---|
A | 25.72930 |
B | 0.089186 |
C | -0.024203 |
D | 0.002067 |
E | -0.151258 |
F | -139.6820 |
G | 125.5240 |
H | -131.5000 |
Reference | Chase, 1998 |
Comment | Data last reviewed in June, 1968 |
Phase change 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: William E. Acree, Jr., James S. Chickos
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
14.9 | 294. | Seki, 1941 | Based on data from 283. to 306. K. |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Phase change 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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
10.59 | PE | Egdell and Orchard, 1978 | Vertical value; LLK |
10.55 | PE | Burroughs, Evans, et al., 1974 | Vertical value; LLK |
10.56 | PE | Green, Green, et al., 1970 | Vertical value; RDSH |
References
Go To: Top, Gas phase thermochemistry data, Phase change 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]
Seki, 1941
Seki, S.,
J. Chem. Soc. Jpn., 1941, 62, 789. [all data]
Egdell and Orchard, 1978
Egdell, R.G.; Orchard, A.F.,
Photoelectron spectra of the group IVA halides,
J. Chem. Soc. Faraday Trans. 2, 1978, 74, 485. [all data]
Burroughs, Evans, et al., 1974
Burroughs, P.; Evans, S.; Hamnett, A.; Orchard, A.F.; Richardson, N.V.,
He-I photoelectron spectra of some d (0) transition metal compounds,
J. Chem. Soc. Faraday Trans. 2, 1974, 70, 1895. [all data]
Green, Green, et al., 1970
Green, J.C.; Green, M.L.H.; Joachim, P.J.; Orchard, A.F.; Turner, D.W.,
A study of the bonding in the group IV tetrahalides by photoelectron spectroscopy,
Phil. Trans. Roy. Soc. (London), 1970, A268, III. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔfH°gas Enthalpy of formation of gas at standard conditions ΔsubH Enthalpy of sublimation - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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