Lithium fluoride

• Formula: FLi
• Molecular weight: 25.939
• IUPAC Standard InChI: InChI=1S/FH.Li/h1H;/q;+1/p-1 Copy

  
• IUPAC Standard InChIKey: PQXKHYXIUOZZFA-UHFFFAOYSA-M Copy
• CAS Registry Number: 7789-24-4
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
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• Information on this page:
  • Gas phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Constants of diatomic molecules
• Data at other public NIST sites:
  • Microwave spectra (on physics lab web site)
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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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:
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
LL - Sharon G. Lias and Joel F. Liebman
B - John E. Bartmess

View reactions leading to FLi⁺ (ion structure unspecified)

Electron affinity determinations

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]

Scheffee and Margrave, 1959
Scheffee, R.S.; Margrave, J.L., Vapor Pressure Equations for Species over Solid and Liquid LiF, J. Chem. Phys., 1959, 31, 6, 1682, https://doi.org/10.1063/1.1730680 . [all data]

Eisenstadt, Rothberg, et al., 1958
Eisenstadt, M.; Rothberg, G.M.; Kusch, P., Molecular Composition of Alkali Fluoride Vapors, J. Chem. Phys., 1958, 29, 4, 797, https://doi.org/10.1063/1.1744593 . [all data]

Porter and Schoonmaker, 1958
Porter, R.F.; Schoonmaker, R.C., Mass spectrometric study of the vaporization of LiF, NaF, and LiF-NaF mixtures, J. Chem. Phys., 1958, 29, 1070. [all data]

Ebinghaus, 1964
Ebinghaus, H.Z., Negative Ionen aus Alkalihalogeniden und Electronenaffinitaten der Alkalimetalle und Alkalihalogenide, Z. Naturfor., 1964, 19A, 727. [all data]

Berkowitz, Tasman, et al., 1962
Berkowitz, J.; Tasman, H.A.; Chupka, W.A., Double-oven experiments with lithium halide vapors, J. Chem. Phys., 1962, 36, 2170. [all data]

Veljkovic, Neskovic, et al., 1993
Veljkovic, M.V.; Neskovic, O.M.; Miletic, M.B.; Zmbov, K.F., Mass spectrometric study of ionization and fragmentation of lithium fluoride vapor by electron impact, J. Serb. Chem. Soc., 1993, 58, 101. [all data]

Notes

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

• Symbols used in this document:
  

  AE	Appearance energy
  EA	Electron affinity
  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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