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Iodine atom

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

Data compiled as indicated in comments:
B - John E. Bartmess
LL - Sharon G. Lias and Joel F. Liebman
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

View reactions leading to I+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)10.45126eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)145.4kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity139.5kcal/molN/AHunter and Lias, 1998HL

Electron affinity determinations

EA (eV) Method Reference Comment
3.05900 ± 0.00010N/APelaez, Blondel, et al., 2009Given: 3.0590463(38) eV; B
3.059036 ± 0.000044LPDHanstorp and Gustafsson, 1992Given: 3.059038±0.000010 eV; B
3.05917 ± 0.00039LOGWebster, McDermid, et al., 1983B
3.0620 ± 0.0020N/ANeiger, 1975B
3.060 ± 0.040N/APiani, Becucci, et al., 2008Stated electron affinity is the Vertical Detachment Energy; B
3.0630 ± 0.0030N/ABerry and Reimann, 1963B
3.34476N/ACheck, Faust, et al., 2001Fe(CO)2-(q); ; «DELTA»S(EA)=5.0; B

Ionization energy determinations

IE (eV) Method Reference Comment
10.45126EVALLide, 1992LL
10.43 ± 0.05PIGrade and Rosinger, 1985LBLHLM
10.4 ± 0.1EIHoareau, Cabaud, et al., 1981LLK
10.5EIPittermann and Weil, 1980LLK
10.45PEImre and Koenig, 1980LLK
10.43 ± 0.02PEDe Leeuw, Mooyman, et al., 1978LLK
10.451SMoore, 1970RDSH
10.45126SMinnhagen, 1962RDSH

Anion protonation reactions

Iodide + Hydrogen cation = Hydrogen iodide

By formula: I- + H+ = HI

Quantity Value Units Method Reference Comment
Deltar314.350 ± 0.020kcal/molD-EAPelaez, Blondel, et al., 2009gas phase; Given: 3.0590463(38) eV; B
Deltar313.60kcal/molN/ACheck, Faust, et al., 2001gas phase; Fe(CO)2-(q); ; «DELTA»S(EA)=5.0; B
Quantity Value Units Method Reference Comment
Deltar309.280 ± 0.060kcal/molH-TSPelaez, Blondel, et al., 2009gas phase; Given: 3.0590463(38) eV; B
Deltar308.50kcal/molN/ACheck, Faust, et al., 2001gas phase; Fe(CO)2-(q); ; «DELTA»S(EA)=5.0; B


Go To: Top, 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.

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]

Pelaez, Blondel, et al., 2009
Pelaez, R.J.; Blondel, C.; Delsart, C.; Drag, C., Pulsed photodetachment microscopy and the electron affinity of iodine, J. Phys. B: Atom. Mol. Opt. Phys., 2009, 42, 12, 125001, https://doi.org/10.1088/0953-4075/42/12/125001 . [all data]

Hanstorp and Gustafsson, 1992
Hanstorp, D.; Gustafsson, M., Determination of the Electron Affinity of Iodine, J. Phys. B: Atom. Mol. Opt. Phys., 1992, 25, 8, 1773, https://doi.org/10.1088/0953-4075/25/8/012 . [all data]

Webster, McDermid, et al., 1983
Webster, C.R.; McDermid, I.S.; Rettner, C.T., Laser optogalvanic photodetachment spectroscopy: A new technique for studying photodetachment thresholds with application to I-, J. Chem. Phys., 1983, 78, 646. [all data]

Neiger, 1975
Neiger, M., Quantitative Investifgation of the Radiation of the Negative Iodine Ion, Z. Naturfor., 1975, 30, 474. [all data]

Piani, Becucci, et al., 2008
Piani, G.; Becucci, M.; Bowen, M.S.; Oakman, J.; Hu, Q.; Continetti, R.E., Photodetachment and dissociation dynamics of microsolvated iodide clusters, Phys. Scripta, 2008, 78, 5, 058110, https://doi.org/10.1088/0031-8949/78/05/058110 . [all data]

Berry and Reimann, 1963
Berry, R.S.; Reimann, C.W., Absorption Spectrum of Gaseous Fluoride and the Electron Affinities of the Halogen Atoms, J. Chem. Phys., 1963, 38, 7, 1540, https://doi.org/10.1063/1.1776916 . [all data]

Check, Faust, et al., 2001
Check, C.E.; Faust, T.O.; Bailey, J.M.; Wright, B.J.; Gilbert, T.M.; Sunderlin, L.S., Addition of Polarization and Diffuse Functions to the LANL2DZ Basis Set for P-Block Elements, J. Phys. Chem. A,, 2001, 105, 34, 8111, https://doi.org/10.1021/jp011945l . [all data]

Lide, 1992
Lide, D.R. (Editor), Ionization potentials of atoms and atomic ions in Handbook of Chem. and Phys., 1992, 10-211. [all data]

Grade and Rosinger, 1985
Grade, M.; Rosinger, W., Correlation of electronic structures and stabilities of gaseous FeI2, Fe2I2 and Fe2I4 molecules, solid [FeI2], and iodine adsorbed on [Fe], Surf. Sci., 1985, 156, 920. [all data]

Hoareau, Cabaud, et al., 1981
Hoareau, A.; Cabaud, B.; Melinon, P., Time-of-flight mass spectroscopy of supersonic beam of metallic vapours: Intensities and appearance potentials of Mx aggregates, Surf. Sci., 1981, 106, 195. [all data]

Pittermann and Weil, 1980
Pittermann, U.; Weil, K.G., Massenspektrometrische Untersuchungen an Silberhalogeniden V: Verdampfung von Silberiodid, Ber. Bunsen-Ges. Phys. Chem., 1980, 84, 542. [all data]

Imre and Koenig, 1980
Imre, D.; Koenig, T., The He(I) photoelectron spectrum of atomic iodine by photodissociation of molecular iodine, Chem. Phys. Lett., 1980, 73, 62. [all data]

De Leeuw, Mooyman, et al., 1978
De Leeuw, D.M.; Mooyman, R.; De Lange, C.A., He(I) photoelectron spectroscopy of halogen atoms, Chem. Phys. Lett., 1978, 54, 231. [all data]

Moore, 1970
Moore, C.E., Ionization potentials and ionization limits derived from the analyses of optical spectra, Natl. Stand. Ref. Data Ser., (U.S. Natl. Bur. Stand.), 1970, 34, 1. [all data]

Minnhagen, 1962
Minnhagen, L., The energy levels of neutral atomic iodine, Ark. Fys., 1962, 21, 415. [all data]


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