I3 anion
- Formula: I3-
- Molecular weight: 380.71396
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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.
Data compiled by: John E. Bartmess
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -262. ± 10. | kJ/mol | R-EA | Taylor, Asmis, et al., 1999 | |
| ΔfH°gas | <-206.7 | kJ/mol | IMRB | Hogness and Harkness, 1928 | I2- + I2 -> First negative ion/molecule reaction reported. |
| ΔfH°gas | -482.00 | kJ/mol | Latt | Finch, Gates, et al., 1977 | This value is far more bound than expected from other studies |
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]
Notes
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- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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