Fluoromethylidyne

• Formula: CF
• Molecular weight: 31.0091
• IUPAC Standard InChI: InChI=1S/CF/c1-2 Copy

  
• IUPAC Standard InChIKey: ISOSXCFSIDVNNC-UHFFFAOYSA-N Copy
• CAS Registry Number: 3889-75-6
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Information on this page:
  • Gas phase thermochemistry data
  • Reaction thermochemistry data
  • Constants of diatomic molecules
  • References
  • Notes
• Other data available:
  • Gas phase ion energetics data
• Data at other public NIST sites:
  • Microwave spectra (on physics lab web site)
  • Electron-Impact Ionization Cross Sections (on physics web site)
  • Gas Phase Kinetics Database
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Gas phase thermochemistry data

Go To: Top, Reaction thermochemistry data, Constants of diatomic molecules, References, Notes

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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Reaction 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.

Data compiled by: John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

(CF₂^- • 4294967295) +  = CF₂^-

By formula: (CF₂^- • 4294967295CF) + CF = CF₂^-

(CAS Reg. No. 226407-20-1 • 4294967295) +  = CAS Reg. No. 226407-20-1

By formula: (CAS Reg. No. 226407-20-1 • 4294967295CF) + CF = CAS Reg. No. 226407-20-1

Constants of diatomic molecules

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Klaus P. Huber and Gerhard H. Herzberg

Data collected through August, 1976

Notes

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Constants of diatomic molecules, 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]

Schwartz, Davico, et al., 1999
Schwartz, R.L.; Davico, G.E.; Ramond, T.M.; Lineberger, W.C., Singlet-triplet splittings in CX2 (X = F, Cl, Br, I) dihalocarbenes via negative ion photoelectron spectroscopy, J. Phys. Chem. A, 1999, 103, 41, 8213-8221, https://doi.org/10.1021/jp992214c . [all data]

Murray, Leopold, et al., 1988
Murray, K.K.; Leopold, D.G.; Miller, T.M.; Lineberger, W.C., Photoelectron Spectroscopy of the Halocarbene Anions HCF^-, HCCl^-, HCBr^-, HCI^-, CF₂^-, and CCl₂^-, J. Chem. Phys., 1988, 89, 9, 5442, https://doi.org/10.1063/1.455596 . [all data]

Jesinger and Squires, 1999
Jesinger, R.A.; Squires, R.R., Carbyne thermochemistry from energy-resolved collision-induced dissociation. The heats of formation of CH, CF, and CCl, Int. J. Mass Spectrom., 1999, 187, 745-757, https://doi.org/10.1016/S1387-3806(98)14182-9 . [all data]

Mathews, 1971
Mathews, C.W., Private communication cited in Huber and Herzberg, 1979, 1971, 139. [all data]

Margrave and Wieland, 1953
Margrave, J.L.; Wieland, K., Equilibria involving the CF(g) and CF₂(g) radicals at high temperatures, J. Chem. Phys., 1953, 21, 1552. [all data]

Mann, Broida, et al., 1954
Mann, D.E.; Broida, H.P.; Squires, B.E., The decomposition of CF₄ flames, J. Chem. Phys., 1954, 22, 348. [all data]

Kuzyakov and Tatevskii, 1958
Kuzyakov, Yu.Ya.; Tatevskii, V.M., New bands of the CF molecule, Opt. Spektrosk., 1958, 5, 699. [all data]

Thrush and Zwolenik, 1963
Thrush, B.A.; Zwolenik, J.J., Predissociation in the absorption spectra of CF and CF2, Trans. Faraday Soc., 1963, 59, 582, https://doi.org/10.1039/tf9635900582 . [all data]

Porter, Mann, et al., 1965
Porter, T.L.; Mann, D.E.; Acquista, N., Emission spectrum of CF, J. Mol. Spectrosc., 1965, 16, 228. [all data]

Carrington and Howard, 1970
Carrington, A.; Howard, B.J., Gas-phase electron resonance spectrum and dipole moment of CF, Mol. Phys., 1970, 18, 225. [all data]

Hesser and Dressler, 1966
Hesser, J.E.; Dressler, K., Radiative lifetimes of ultraviolet molecular transitions, J. Chem. Phys., 1966, 45, 3149. [all data]

Hesser, 1968
Hesser, J.E., Absolute Transition Probabilities in Ultraviolet Molecular Spectra, J. Chem. Phys., 1968, 48, 6, 2518, https://doi.org/10.1063/1.1669477 . [all data]

Wentink and Isaacson, 1967
Wentink, T., Jr.; Isaacson, L., Oscillator strengths of CF and comments on heats of formation of CF and CF₂, J. Chem. Phys., 1967, 46, 603. [all data]

Carroll and Grennan, 1970
Carroll, P.K.; Grennan, T.P., The B-X system of CF, J. Phys. B:, 1970, 3, 865. [all data]

Hall and Richards, 1972
Hall, J.A.; Richards, W.G., A theoretical study of the spectroscopic states of the CF molecule, Mol. Phys., 1972, 23, 331. [all data]

Harrington, Modica, et al., 1966
Harrington, J.A.; Modica, A.P.; Libby, D.R., Erratum: Shock-tube determination of the C₂(A³Π → X³Π) and CF(A²Σ⁺ → X²Π) band-system oscillator strengths, J. Chem. Phys., 1966, 45, 2720. [all data]

Hildenbrand, 1975
Hildenbrand, D.L., Dissociation energy and ionization potential of the molecule CF, Chem. Phys. Lett., 1975, 32, 523. [all data]

Walter, Lifshitz, et al., 1969
Walter, T.A.; Lifshitz, C.; Chupka, W.A.; Berkowitz, J., Mass-spectrometric study of the photoionization of C₂F₄ and CF₄, J. Chem. Phys., 1969, 51, 3531. [all data]

O'Hare and Wahl, 1971
O'Hare, P.A.G.; Wahl, A.C., Molecular orbital investigation of CF and SiF and their positive and negative ions, J. Chem. Phys., 1971, 55, 666. [all data]

Huber and Herzberg, 1979
Huber, K.P.; Herzberg, G., Molecular Spectra and Molecular Structure. IV. Constants of Diatomic Molecules, Van Nostrand Reinhold Company, New York, 1979, 716. [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Constants of diatomic molecules, References

• Symbols used in this document:
  

  S°gas,1 bar	Entropy of gas at standard conditions (1 bar)
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions

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