Tungsten pentabromide


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-47.600kcal/molReviewChase, 1998Data last reviewed in June, 1967
Quantity Value Units Method Reference Comment
gas,1 bar110.29cal/mol*KReviewChase, 1998Data last reviewed in June, 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) 1000. to 6000.
A 31.56740
B 0.091040
C 0.139414
D -0.019292
E -0.103943
F -57.36439
G 147.8780
H -47.60000
ReferenceChase, 1998
Comment Data last reviewed in June, 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
Δfliquid-71.238kcal/molReviewChase, 1998Data last reviewed in June, 1967
Quantity Value Units Method Reference Comment
liquid,1 bar70.110cal/mol*KReviewChase, 1998Data last reviewed in June, 1967
Quantity Value Units Method Reference Comment
Δfsolid-74.500kcal/molReviewChase, 1998Data last reviewed in June, 1967
Quantity Value Units Method Reference Comment
solid64.998cal/mol*KReviewChase, 1998Data last reviewed in June, 1967

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

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Temperature (K) 559. to 1000.
A 43.50000
B 0.000000
C 0.000000
D 0.000000
E 0.000000
F -84.20741
G 122.7520
H -71.23791
ReferenceChase, 1998
Comment Data last reviewed in June, 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 559.
A 28.61840
B 29.17569
C -6.665770
D 2.844441
E 0.031635
F -84.17110
G 91.38110
H -74.50010
ReferenceChase, 1998
Comment Data last reviewed in June, 1967

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 as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

IE (eV) Method Reference Comment
8.3 ± 0.2EIKaposi, Popovic, et al., 1977LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
BrW+20.9 ± 0.34BrEIKaposi, Popovic, et al., 1977LLK
Br2W+16.6 ± 0.23BrEIKaposi, Popovic, et al., 1977LLK
Br3W+13.4 ± 0.22BrEIKaposi, Popovic, et al., 1977LLK
Br4W+10.0 ± 0.2BrEIKaposi, Popovic, et al., 1977LLK
W+25.0 ± 0.35BrEIKaposi, Popovic, et al., 1977LLK

References

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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]

Kaposi, Popovic, et al., 1977
Kaposi, O.; Popovic, A.; Marsel, J., Mass spectrometric studies of tungsten bromides and oxybromides, J. Inorg. Nucl. Chem., 1977, 39, 1809. [all data]


Notes

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