Fluoromethylidyne

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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.

Quantity Value Units Method Reference Comment
Δfgas60.999kcal/molReviewChase, 1998Data last reviewed in June, 1970
Quantity Value Units Method Reference Comment
gas,1 bar50.915cal/mol*KReviewChase, 1998Data last reviewed in June, 1970

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 600.600. to 6000.
A 5.2345518.526860
B 5.7670110.382043
C -1.606451-0.079208
D -1.2151600.007686
E 0.036053-0.288711
F 59.3206057.62170
G 55.8164059.91150
H 61.0001061.00010
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in June, 1970 Data last reviewed in June, 1970

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- • 4294967295Fluoromethylidyne) + Fluoromethylidyne = CF2-

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

Quantity Value Units Method Reference Comment
Δr51.2 ± 2.3kcal/molN/ASchwartz, Davico, et al., 1999gas phase; Neutral carbene triplet 54±3 kcal/mol above singlet
Δr46.6 ± 3.6kcal/molTherMurray, Leopold, et al., 1988gas phase; Singlet-triplet splitting in neutral > 50 kcal/mol

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

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

Quantity Value Units Method Reference Comment
Δr21.9 ± 1.1kcal/molCIDTJesinger and Squires, 1999gas phase

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry 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]

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]


Notes

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