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iron dibromide


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-41.42kJ/molReviewChase, 1998Data last reviewed in September, 1966
Quantity Value Units Method Reference Comment
gas,1 bar337.36J/mol*KReviewChase, 1998Data last reviewed in September, 1966

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) 2000. - 6000.
A 57.84254
B 7.661573
C -1.935800
D 0.143845
E -1.735758
F -60.66172
G 404.5823
H -41.42206
ReferenceChase, 1998
Comment Data last reviewed in September, 1966

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-211.01kJ/molReviewChase, 1998Data last reviewed in September, 1966
Quantity Value Units Method Reference Comment
liquid,1 bar169.38J/mol*KReviewChase, 1998Data last reviewed in September, 1966
Quantity Value Units Method Reference Comment
Deltafsolid-248.95kJ/molReviewChase, 1998Data last reviewed in September, 1966
Quantity Value Units Method Reference Comment
solid140.67J/mol*KReviewChase, 1998Data last reviewed in September, 1966

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) 964. - 2000.
A 106.6920
B 6.840883×10-9
C -5.250168×10-9
D 1.286200×10-9
E 1.205829×10-10
F -242.8155
G 298.4903
H -211.0054
ReferenceChase, 1998
Comment Data last reviewed in September, 1966

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. - 650.650. - 964.
A 74.1622069.20970
B 19.5915032.36990
C 4.612490-8.572280
D -2.7753012.533470
E -0.0095400.313303
F -271.9980-269.5980
G 224.3380217.1770
H -248.9480-248.9480
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in September, 1966 Data last reviewed in September, 1966

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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV) Method Reference Comment
10.7 ± 0.5EIPorter and Schoonmaker, 1959RDSH
9.7PEMacNaughton, Bloor, et al., 1981Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
FeBr+12.9 ± 0.5BrEIPorter and Schoonmaker, 1959RDSH
Fe+16.6 ± 0.5?EIPorter and Schoonmaker, 1959RDSH

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Gas phase ion energetics data, NIST Free Links, 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]

Porter and Schoonmaker, 1959
Porter, R.F.; Schoonmaker, R.C., A mass spectrometric study of the vaporization of ferrous bromide, J. Phys. Chem., 1959, 63, 626. [all data]

MacNaughton, Bloor, et al., 1981
MacNaughton, R.M.; Bloor, J.E.; Sherrod, R.E.; Schweitzer, G.K., The He(I) photoelectron psectra of some gaseous 3d-transition metal dihalides, J. Electron Spectrosc. Relat. Phenom., 1981, 22, 1. [all data]


Notes

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