Diboron tetrafluoride


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-342.201kcal/molReviewChase, 1998Data last reviewed in December, 1964
Quantity Value Units Method Reference Comment
gas,1 bar76.116cal/mol*KReviewChase, 1998Data last reviewed in December, 1964

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) 298. to 1100.1100. to 6000.
A 8.14059130.30320
B 47.627510.277321
C -39.46200-0.055934
D 11.904600.003863
E -0.068900-2.411270
F -346.6511-357.6391
G 73.02839103.4730
H -342.2000-342.2000
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1964 Data last reviewed in December, 1964

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

ΔsubH (kcal/mol) Temperature (K) Reference Comment
8.48193.Finch and Schlesinger, 1958Based on data from 178. to 209.5 K.

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
≤12.23 ± 0.06PELynaugh, Lloyd, et al., 1972LLK
12.0 ± 0.01PIDibeler and Liston, 1968RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
BF+12.75 ± 0.01BF3PIDibeler and Liston, 1968RDSH
BF2+12.94 ± 0.01BF2PIDibeler and Liston, 1968RDSH
B2F3+15.40 ± 0.01FPIDibeler and Liston, 1968RDSH

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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