Diboron tetrafluoride

• Formula: B₂F₄
• Molecular weight: 97.616
• IUPAC Standard InChI: InChI=1S/B2F4/c3-1(4)2(5)6 Copy

  
• IUPAC Standard InChIKey: WUWOPJNIAKTBSJ-UHFFFAOYSA-N Copy
• CAS Registry Number: 13965-73-6
• Chemical structure:
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• Other names: Difluoroborane; (BF2)2
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• Information on this page:
  • Gas phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • References
  • Notes
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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.

Gas Phase Heat Capacity (Shomate Equation)

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

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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 sublimation

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

Appearance energy determinations

References

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

Finch and Schlesinger, 1958
Finch, Arthur; Schlesinger, H.I., Diboron Tetrafluoride, J. Am. Chem. Soc., 1958, 80, 14, 3573-3574, https://doi.org/10.1021/ja01547a020 . [all data]

Lynaugh, Lloyd, et al., 1972
Lynaugh, N.; Lloyd, D.R.; Guest, M.F.; Hall, M.B.; Hillier, I.H., Photoelectron studies of boron compounds. Part 4. Experimental and theoretical studies of diboron and tetrachloride diboron tetrafluoride, J. Chem. Soc. Faraday Trans. 2, 1972, 68. [all data]

Dibeler and Liston, 1968
Dibeler, V.H.; Liston, S.K., Mass spectrometric study of photoionization. XII.Boron trifluoride and diboron tetrafluoride, Inorg. Chem., 1968, 7, 1742. [all data]

Notes

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• Symbols used in this document:
  

  AE	Appearance energy
  S°gas,1 bar	Entropy of gas at standard conditions (1 bar)
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔsubH	Enthalpy of sublimation

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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