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 | -550.20 | kJ/mol | Review | Chase, 1998 | Data last reviewed in June, 1968 |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 398.58 | J/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 (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
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Temperature (K) | 1000. to 6000. |
---|---|
A | 107.6514 |
B | 0.373155 |
C | -0.101265 |
D | 0.008648 |
E | -0.632864 |
F | -584.4295 |
G | 525.1924 |
H | -550.1960 |
Reference | Chase, 1998 |
Comment | Data last reviewed in June, 1968 |
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 |
---|---|---|---|---|---|
ΔfH°liquid | -605.35 | kJ/mol | Review | Chase, 1998 | Data last reviewed in June, 1968 |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid,1 bar | 284.17 | J/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1968 |
Quantity | Value | Units | Method | Reference | Comment |
ΔfH°solid | -617.98 | kJ/mol | Review | Chase, 1998 | Data last reviewed in June, 1968 |
Quantity | Value | Units | Method | Reference | Comment |
S°solid | 243.69 | J/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1968 |
Liquid 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) | 311.4 to 1000. |
---|---|
A | 151.8792 |
B | 0.000000 |
C | 0.000000 |
D | 0.000000 |
E | 0.000000 |
F | -650.6287 |
G | 467.9678 |
H | -605.3453 |
Reference | Chase, 1998 |
Comment | Data last reviewed in June, 1968 |
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 (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 311.4 |
---|---|
A | 146.5818 |
B | -31.75484 |
C | 27.40558 |
D | -7.897509 |
E | -0.638131 |
F | -662.6159 |
G | 425.8099 |
H | -617.9768 |
Reference | Chase, 1998 |
Comment | Data last reviewed in June, 1968 |
Phase change 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: William E. Acree, Jr., James S. Chickos
Enthalpy of sublimation
ΔsubH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
62.4 | 294. | Seki, 1941 | Based on data from 283. to 306. K. |
Vibrational and/or electronic energy levels
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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: Takehiko Shimanouchi
Symmetry: Td Symmetry Number σ = 12
Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
---|---|---|---|---|---|---|---|---|---|---|
Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
a1 | 1 | Sym str | 232 | B | ia | 231.5 | gas | |||
e | 2 | Deg deform | 69 | B | ia | 68.5 | gas | |||
f2 | 3 | Deg str | 393 | C | 383 VS | liq. | 393 | gas | ||
f2 | 4 | Deg deform | 88 | C | 88 | gas | ||||
Source: Shimanouchi, 1972
Notes
VS | Very strong |
ia | Inactive |
B | 1~3 cm-1 uncertainty |
C | 3~6 cm-1 uncertainty |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Vibrational and/or electronic energy levels, 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]
Shimanouchi, 1972
Shimanouchi, T.,
Tables of Molecular Vibrational Frequencies Consolidated Volume II,
J. Phys. Chem. Ref. Data, 1972, 6, 3, 993-1102. [all data]
Notes
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- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) S°liquid,1 bar Entropy of liquid at standard conditions (1 bar) S°solid Entropy of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔsubH Enthalpy of sublimation - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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