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titanium tetraiodide


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
Deltafgas-277.27kJ/molReviewChase, 1998Data last reviewed in December, 1968
Quantity Value Units Method Reference Comment
gas,1 bar433.07J/mol*KReviewChase, 1998Data last reviewed in December, 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) 1500. - 6000.
A 107.9832
B 0.089287
C -0.024249
D 0.002072
E -0.335384
F -310.5984
G 561.8317
H -277.2741
ReferenceChase, 1998
Comment Data last reviewed in December, 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
Deltafliquid-348.31kJ/molReviewChase, 1998Data last reviewed in December, 1968
Quantity Value Units Method Reference Comment
liquid,1 bar311.84J/mol*KReviewChase, 1998Data last reviewed in December, 1968
Quantity Value Units Method Reference Comment
Deltafsolid-375.72kJ/molReviewChase, 1998Data last reviewed in December, 1968
Quantity Value Units Method Reference Comment
solid246.15J/mol*KReviewChase, 1998Data last reviewed in December, 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) 428. - 1500.
A 156.4820
B -2.864982×10-9
C 3.131152×10-9
D -1.080711×10-9
E -2.172685×10-11
F -394.9696
G 501.2097
H -348.3142
ReferenceChase, 1998
Comment Data last reviewed in December, 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. - 379.379. - 428.
A 72.82210148.1140
B 175.3632-1.388335×10-11
C 0.0000000.000000
D 0.0000000.000000
E 0.046435-3.210743×10-12
F -405.0735-411.2207
G 282.2547447.7717
H -375.7232-375.7232
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1968 Data last reviewed in December, 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 vaporization

DeltavapH (kJ/mol) Temperature (K) Reference Comment
58.5538.Blocher and Campbell, 1947Based on data from 433. - 643. K.

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: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

IE (eV) Method Reference Comment
9.1PEEgdell and Orchard, 1978 
9.27PEEgdell and Orchard, 1978Vertical value

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 sigma = 12


 Sym.   No   Approximate   Selected Freq.  Infrared   Raman   Comments 
 Species   type of mode   Value   Rating   Value  Phase  Value  Phase

a1 1 Sym str 162  D  ia 162 VS p solid solid
e 2 Deg deform 51  D  ia 51 M dp solid solid
f2 3 Deg str 322  D 322 VS solid solid 324 M dp solid solid
f2 4 Deg deform 67  D 67 M solid solid

Source: Shimanouchi, 1972

Notes

VSVery strong
MMedium
iaInactive
pPolarized
dpDepolarized
D6~15 cm-1 uncertainty

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics 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]

Blocher and Campbell, 1947
Blocher, John M.; Campbell, Ivor E., The Vapor Pressure of Liquid Titanium Tetraiodide, J. Am. Chem. Soc., 1947, 69, 9, 2100-2101, https://doi.org/10.1021/ja01201a006 . [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]

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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