Boron fluoride oxide

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-836.80kJ/molReviewChase, 1998Data last reviewed in December, 1966
Quantity Value Units Method Reference Comment
S°gas,1 bar267.84J/mol*KReviewChase, 1998Data last reviewed in December, 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) 298. to 1100.1100. to 6000.
A 20.3537484.91177
B 140.2335-1.676283
C -121.96230.440082
D 38.22925-0.019598
E -0.191842-7.156648
F -848.7453-880.5437
G 254.6608344.6449
H -836.8000-836.8000
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1966 Data last reviewed in December, 1966

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: Marilyn E. Jacox

State:   C
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 22390.9 ± 0.4 gas C-X 446 447 Mathews, 1966
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1 2 BF stretch 875 gas EM Krishnamachari and Vengsarkar
3 BF2 scissors 480.6 gas EM Krishnamachari and Vengsarkar
Mathews and Innes, 1965

State:   A
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 5220 gas C-A 554 633 Krishnamachari and Vengsarkar
Mathews and Innes, 1965
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1 1 BO stretch 1369 gas EM Krishnamachari and Vengsarkar
2 BF stretch 856.0 gas EM Krishnamachari and Vengsarkar
Mathews and Innes, 1965
3 BF2 scissors 491.0 gas EM Krishnamachari and Vengsarkar
Mathews and Innes, 1965

Additional references: Jacox, 1994, page 200; Dixon, Duxbury, et al., 1967

Notes

oEnergy separation between the v = 0 levels of the excited and electronic ground states.

References

Go To: Top, Gas phase thermochemistry 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]

Mathews, 1966
Mathews, C.W., The 4465-Å emission spectrum of the BOF2 molecule, J. Mol. Spectrosc., 1966, 19, 1-4, 203, https://doi.org/10.1016/0022-2852(66)90242-6 . [all data]

Krishnamachari and Vengsarkar
Krishnamachari, S.L.N.G.; Vengsarkar, B.R., Proc. C. S. I. R. Sympos. Banaras, 1963, p. 87. [all data]

Mathews and Innes, 1965
Mathews, C.W.; Innes, K.K., The emission spectrum of the BOF2 molecule, J. Mol. Spectrosc., 1965, 15, 2, 199, https://doi.org/10.1016/0022-2852(65)90036-6 . [all data]

Jacox, 1994
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]

Dixon, Duxbury, et al., 1967
Dixon, R.N.; Duxbury, G.; Mitchell, R.C.; Simons, J.P., The Ultraviolet Absorption Spectrum of the FFormulaCN Radical, Proc. Roy. Soc. (London) A300, 1967, 300, 1462, 405, https://doi.org/10.1098/rspa.1967.0178 . [all data]

Notes

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