I3 anion


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.

Data compiled by: John E. Bartmess

Quantity Value Units Method Reference Comment
Δfgas-62.5 ± 2.4kcal/molR-EATaylor, Asmis, et al., 1999 
Δfgas<-49.40kcal/molIMRBHogness and Harkness, 1928I2- + I2 -> First negative ion/molecule reaction reported.
Δfgas-115.20kcal/molLattFinch, Gates, et al., 1977This value is far more bound than expected from other studies

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

Iodide + Iodine = I3-

By formula: I- + I2 = I3-

Quantity Value Units Method Reference Comment
Δr32.5 ± 2.4kcal/molN/ATaylor, Asmis, et al., 1999gas phase
Δr30.1 ± 1.4kcal/molCIDTDo, Klein, et al., 1997gas phase
Δr85.10kcal/molTherFinch, Gates, et al., 1977gas phase; This value is far more bound than expected from other studies
Δr32.60kcal/molN/ACheck, Faust, et al., 2001gas phase; FeF3-(t); ; ΔS(EA)=2.8
Quantity Value Units Method Reference Comment
Δr22.50kcal/molN/ACheck, Faust, et al., 2001gas phase; FeF3-(t); ; ΔS(EA)=2.8

I3- + Iodine = (I3- • Iodine)

By formula: I3- + I2 = (I3- • I2)

Quantity Value Units Method Reference Comment
Δr11.7 ± 1.4kcal/molCIDTDo, Klein, et al., 1997gas phase

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 by: John E. Bartmess

Electron affinity of neutral species

EAneutral (eV) Method Reference Comment
4.226 ± 0.013LPESTaylor, Asmis, et al., 1999 
4.24999LPESZanni, Greenblatt, et al., 1999Stated electron affinity is the Vertical Detachment Energy
4.347992N/ACheck, Faust, et al., 2001FeF3-(t); ; ΔS(EA)=2.8

References

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

Taylor, Asmis, et al., 1999
Taylor, T.R.; Asmis, K.R.; Zanni, M.T.; Neumark, D.M., Characterization of the I-3 radical by anion photoelectron spectroscopy, J. Chem. Phys., 1999, 110, 16, 7607-7609, https://doi.org/10.1063/1.478672 . [all data]

Hogness and Harkness, 1928
Hogness, T.R.; Harkness, R.W., The Ionization Processes of Iodine Interpreted by the Mass Spectrograph, Phys. Rev., 1928, 32, 5, 784, https://doi.org/10.1103/PhysRev.32.784 . [all data]

Finch, Gates, et al., 1977
Finch, A.; Gates, P.N.; Peake, S.J., Thermochemistry of polyhalides. III. Cesium and rubidium tetrachloroiodates, J. Inorg. Nucl. Chem., 1977, 39, 2135. [all data]

Do, Klein, et al., 1997
Do, K.; Klein, T.P.; Pommerening, C.A.; Sunderlin, L.S., A New Flowing Afterglow-Guided Ion Beam Tandem Mass Spectrometer. Applications to the Thermochemistry of Polyiodide Ions, J. Am. Soc. Mass Spectrom., 1997, 8, 7, 688, https://doi.org/10.1016/S1044-0305(97)00116-5 . [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]

Zanni, Greenblatt, et al., 1999
Zanni, M.T.; Greenblatt, B.J.; Davis, A.V.; Neumark, D.M., Photodissociation of gas phase I-3(-) using femtosecond photoelectron spectroscopy, J. Chem. Phys., 1999, 111, 7, 2991-3003, https://doi.org/10.1063/1.479660 . [all data]


Notes

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