Phosphorus pentafluoride

• Formula: F₅P
• Molecular weight: 125.965778
• IUPAC Standard InChI: InChI=1S/F5P/c1-6(2,3,4)5 Copy

  
• IUPAC Standard InChIKey: OBCUTHMOOONNBS-UHFFFAOYSA-N Copy
• CAS Registry Number: 7647-19-0
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: Phosphorus(V) fluoride; PF5; Phosphorane, pentafluoro-; UN 2198; Phosphorus fluoride
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• Information on this page:
  • Gas phase thermochemistry data
  • Gas phase ion energetics data
  • Vibrational and/or electronic energy levels
  • References
  • Notes
• Other data available:
  • Phase change data
  • Reaction thermochemistry data
  • Ion clustering data
  • Mass spectrum (electron ionization)
• Data at other public NIST sites:
  • Computational Chemistry Comparison and Benchmark Database
  • Gas Phase Kinetics Database
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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 (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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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
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
B - John E. Bartmess

Electron affinity determinations

Ionization energy determinations

Appearance energy determinations

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: Takehiko Shimanouchi

Symmetry:   D_3h     Symmetry Number σ = 6

Source: Shimanouchi, 1972

Notes

References

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics 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]

Miller, Miller, et al., 1994
Miller, T.M.; Miller, A.E.S.; Viggiano, A.A.; Morris, R.A.; Paulson, J.F., Negative ion reactions with PF5 and the electron affinity of PF5, J. Chem. Phys., 1994, 100, 10, 7200, https://doi.org/10.1063/1.466918 . [all data]

Goodman, Dewar, et al., 1973
Goodman, D.W.; Dewar, M.J.R.; Schweiger, J.R.; Cowley, A.H., The photoelectron spectrum of phosphorus pentafluoride, Chem. Phys. Lett., 1973, 21, 474. [all data]

Cox, Evans, et al., 1972
Cox, P.A.; Evans, S.; Orchard, A.F.; Richardson, N.V.; Roberts, P.J., Simple quantitative molecular orbital methods used in connection with photoelectron spectroscopy, Faraday Discuss. Chem. Soc., 1972, 54, 26. [all data]

Neskovic, Miletic, et al., 1983
Neskovic, O.; Miletic, M.; Veljkovic, M.; Golobocantin, D.; Zmbov, K.F., Ionization and fragmentation of phosphorous oxyfluoride by electron impact, Int. J. Mass Spectrom. Ion Processes, 1983, 47, 141. [all data]

Shimanouchi, 1972
Shimanouchi, T., Tables of Molecular Vibrational Frequencies Consolidated Volume II, J. Phys. Chem. Ref. Data, 1972, 6, 3, 993-1102. [all data]

Notes

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• 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

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