Methane, trifluoroiodo-

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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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil250.6KN/AFarchan Laboratories, 1990BS
Tboil250.6KN/APCR Inc., 1990BS

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
5.38281.AStephenson and Malanowski, 1987Based on data from 188. to 296. K. See also Dykyj, 1970 and Banks, Emel«65533»us, et al., 1948.; AC

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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
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

Quantity Value Units Method Reference Comment
IE (evaluated)10.28 ± 0.07eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)150.1kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity143.0kcal/molN/AHunter and Lias, 1998HL

Electron affinity determinations

EA (eV) Method Reference Comment
1.57 ± 0.20NBIECompton, Reinhardt, et al., 1978B
1.40 ± 0.20NBIETang, Mathur, et al., 1976B
2.20 ± 0.20NBIEMcNamee, Lacmann, et al., 1973B

Ionization energy determinations

IE (eV) Method Reference Comment
10.2PEBancroft, Yates, et al., 1984LBLHLM
10.38 ± 0.02PIWang and Leroi, 1983LBLHLM
10.32 ± 0.03PIBerman, Beauchamp, et al., 1981LLK
10.23PINoutary, 1968RDSH
10.5 ± 0.1EIDorman, 1964RDSH
10.64 ± 0.02EIMarriott and Craggs, 1956RDSH
10.0 ± 0.3EIDibeler, Reese, et al., 1956RDSH
10.5PEBancroft, Yates, et al., 1984Vertical value; LBLHLM
10.45 ± 0.05PECvitas, Gusten, et al., 1977Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C+33. ± 1.?EIDibeler, Reese, et al., 1956RDSH
CF+19.9 ± 0.3?EIMarriott and Craggs, 1956RDSH
CF2I+13.40 ± 0.05FPIPECOPowis, Dutuit, et al., 1990LL
CF2I+14.58 ± 0.06FEIMarriott and Craggs, 1956RDSH
CF2I+15.3 ± 0.3FEIDibeler, Reese, et al., 1956RDSH
CF3+11.26 ± 0.05IPIPECOBombach, Dannacher, et al., 1982LBLHLM
CF3+11.36 ± 0.03IPIBerman, Beauchamp, et al., 1981T = 0K; LLK
CF3+11.27 ± 0.03IPIBerman, Beauchamp, et al., 1981T = 298K; LLK
CF3+10.89 ± 0.01IPINoutary, 1968RDSH
F+33. ± 1.?EIDibeler, Reese, et al., 1956RDSH
I+13.4 ± 0.1?EIDorman, 1964RDSH

References

Go To: Top, 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.

Farchan Laboratories, 1990
Farchan Laboratories, Research Chemicals Catalog, Farchan Laboratories, Gainesville, FL, 1990, 91. [all data]

PCR Inc., 1990
PCR Inc., Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 1. [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Dykyj, 1970
Dykyj, J., Petrochemica, 1970, 10, 2, 51. [all data]

Banks, Emel«65533»us, et al., 1948
Banks, A.A.; Emel«65533»us, H.J.; Haszeldine, R.N.; Kerrigan, V., 443. The reaction of bromine trifluoride and iodine pentafluoride with carbon tetrachloride, tetrabromide, and tetraiodide and with tetraiodoethylene, J. Chem. Soc., 1948, 2188, https://doi.org/10.1039/jr9480002188 . [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Compton, Reinhardt, et al., 1978
Compton, R.N.; Reinhardt, P.W.; Cooper, C.D., Collisional ionization between alkali atoms and some methane derivatives: Electron affinities for CH3NO2, CF3I, and CF3Br, J. Chem. Phys., 1978, 68, 4360. [all data]

Tang, Mathur, et al., 1976
Tang, S.Y.; Mathur, B.P.; Roth, E.W.; Reck, G.P., Negative ion formation in halocarbons by charge exchange with cesium, J. Chem. Phys., 1976, 64, 1270. [all data]

McNamee, Lacmann, et al., 1973
McNamee, P.E.; Lacmann, K.; Herschbach, D.R., Translational Energy Dependence of Product Energy and Angular Distribution for the K + CH3I Reaction. Comments., Faraday Disc. Chem. Soc., 1973, 55, 318. [all data]

Bancroft, Yates, et al., 1984
Bancroft, G.M.; Yates, B.W.; Tan, K.H.; Coatsworth, L.L., High resolution gas phase photoelectron spectra using synchrotron radiation. selective enhancement of the I 5p cross section in CF3I due to photoexcitation of I 4d electrons, J. Chem. Soc., Chem. Commun., 1984, 1613. [all data]

Wang and Leroi, 1983
Wang, F.C.-Y.; Leroi, G.E., Photoionization and fragmentation of halogenated methanes, Ann. Isr. Phys. Soc., 1983, 6, 210. [all data]

Berman, Beauchamp, et al., 1981
Berman, D.W.; Beauchamp, J.L.; Thorne, L.R., Ion cyclotron resonance and photoionization investigations of the thermochemistry and reactions of ions derived from CF3I, Int. J. Mass Spectrom. Ion Phys., 1981, 39, 47. [all data]

Noutary, 1968
Noutary, C.J., Mass spectrometric study of some fluorocarbons and trifluoromethyl halides, J.Res. NBS, 1968, 72A, 479. [all data]

Dorman, 1964
Dorman, F.H., Appearance potentials of the fragment ions from CF3I, J. Chem. Phys., 1964, 41, 2857. [all data]

Marriott and Craggs, 1956
Marriott, J.; Craggs, J.D., Ionization and dissociation by electron impact. I. Trifluoromethyl halides, J. Electron., 1956, 1, 405. [all data]

Dibeler, Reese, et al., 1956
Dibeler, V.H.; Reese, R.M.; Mohler, F.L., Ionization and dissociation of the trifluoromethyl halides by electron impact, J. Res. NBS, 1956, 57, 113. [all data]

Cvitas, Gusten, et al., 1977
Cvitas, J.; Gusten, H.; Klasinc, L.; Novadj, I.; Vancik, H., Photoelectron spectra of bromo- iodotrifluoromethane, Z. Naturforsch. A:, 1977, 32, 1528. [all data]

Powis, Dutuit, et al., 1990
Powis, I.; Dutuit, O.; Richard-Viard, M.; Guyon, P.M., Photoion anisotropy in dissociative photoionization of CF3I, J. Chem. Phys., 1990, 92, 1643. [all data]

Bombach, Dannacher, et al., 1982
Bombach, R.; Dannacher, J.; Stadelmann, J.-P.; Vogt, J.; Thorne, L.R.; Beauchamp, J.L., Photoelectron-photoion coincidence study of CF3I. Implications for the CW IR laser multiphoton dissociation of CF3I+, Chem. Phys., 1982, 66, 403. [all data]


Notes

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