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Boroxine


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-1217.54kJ/molReviewChase, 1998Data last reviewed in March, 1965
Quantity Value Units Method Reference Comment
gas,1 bar291.90J/mol*KReviewChase, 1998Data last reviewed in March, 1965

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) 298. - 1200.1200. - 6000.
A 5.371377193.0481
B 342.41357.814959
C -242.1034-1.515370
D 64.661210.101599
E 0.011839-30.66374
F -1232.318-1347.298
G 206.5624427.1697
H -1217.544-1217.544
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in March, 1965 Data last reviewed in March, 1965

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
Deltafsolid-1262.31kJ/molReviewChase, 1998Data last reviewed in March, 1965
Quantity Value Units Method Reference Comment
solid167.49J/mol*KReviewChase, 1998Data last reviewed in March, 1965

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. - 1400.1400. - 2000.
A -70.92382172.7858
B 567.342059.71321
C -365.7787-13.72959
D 80.54995-0.101545
E 2.718634-0.339150
F -1254.154-1344.633
G -56.65010300.0054
H -1262.313-1262.313
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in March, 1965 Data last reviewed in March, 1965

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry 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:
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV) Method Reference Comment
13.5 ± 0.5EISholette and Porter, 1963RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
B2HO2+>20.?EISholette and Porter, 1963RDSH
B3H2O3+14.5 ± 0.5HEISholette and Porter, 1963RDSH

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry 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]

Sholette and Porter, 1963
Sholette, W.P.; Porter, R.F., Mass spectrometric study of high temperature reactions in the boron-hydrogen-oxygen system, J. Phys. Chem., 1963, 67, 177. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Gas phase ion energetics data, References