lithium iodide
- Formula: ILi
- Molecular weight: 133.845
- IUPAC Standard InChI: InChI=1S/HI.Li/h1H;/q;+1/p-1
- IUPAC Standard InChIKey: HSZCZNFXUDYRKD-UHFFFAOYSA-M
- CAS Registry Number: 10377-51-2
- Chemical structure:
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Condensed phase thermochemistry data
Go To: Top, Gas phase ion energetics data, References, Notes
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 |
|---|---|---|---|---|---|
| ΔfH°liquid | -61.747 | kcal/mol | Review | Chase, 1998 | Data last reviewed in June, 1966 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid,1 bar | 23.57 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1966 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔfH°solid | -64.551 | kcal/mol | Review | Chase, 1998 | Data last reviewed in June, 1966 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid | 20.47 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1966 |
Liquid 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) | 742. to 2500. |
|---|---|
| A | 15.09990 |
| B | -1.358930×10-10 |
| C | 9.752670×10-11 |
| D | -2.137310×10-11 |
| E | -2.400560×10-12 |
| F | -66.24890 |
| G | 41.84199 |
| H | -61.74699 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1966 |
Solid 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 742. |
|---|---|
| A | 24.26071 |
| B | -45.95949 |
| C | 68.31260 |
| D | -29.06611 |
| E | -0.345867 |
| F | -71.45691 |
| G | 58.80801 |
| H | -64.55000 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1966 |
Gas phase ion energetics data
Go To: Top, Condensed phase thermochemistry data, References, Notes
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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| 0.750 ± 0.040 | N/A | Miller, Leopold, et al., 1986 | Extrapolated by polarizability and radius from experimental data.; B |
| >1.12001 | EIAE | Ebinghaus, 1964 | From (LiI)2; B |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 7.5 | PE | Potts and Lee, 1979 | LLK |
| 8.6 ± 0.3 | EI | Platel, 1965 | RDSH |
| ≤8.55 ± 0.15 | EI | Friedman, 1955 | RDSH |
| 8.44 ± 0.03 | PE | Potts and Lee, 1979 | Vertical value; LLK |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| I+ | 14.4 ± 0.3 | Li | EI | Platel, 1965 | RDSH |
| I+ | 14.5 ± 0.20 | Li | EI | Friedman, 1955 | RDSH |
| Li+ | 9.5 ± 0.3 | I | EI | Platel, 1965 | RDSH |
| Li+ | 9.2 ± 0.15 | I | EI | Friedman, 1955 | RDSH |
References
Go To: Top, Condensed phase thermochemistry 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.
Chase, 1998
Chase, M.W., Jr.,
NIST-JANAF Themochemical Tables, Fourth Edition,
J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]
Miller, Leopold, et al., 1986
Miller, T.M.; Leopold, D.G.; Murray, K.K.; Lineberger, W.C.,
Electron Affinities of the Alkali Halides and the Structure of their Negative Ions,
J. Chem. Phys., 1986, 85, 5, 2368, https://doi.org/10.1063/1.451091
. [all data]
Ebinghaus, 1964
Ebinghaus, H.Z.,
Negative Ionen aus Alkalihalogeniden und Electronenaffinitaten der Alkalimetalle und Alkalihalogenide,
Z. Naturfor., 1964, 19A, 727. [all data]
Potts and Lee, 1979
Potts, A.W.; Lee, E.P.F.,
Photoelectron spectra and electronic structure of lithium halide monomers and dimers,
J. Chem. Soc. Faraday Trans. 2, 1979, 75, 941. [all data]
Platel, 1965
Platel, G.,
Mesures des potentials d'apparition des ions obtenus par impact electronique dans la phase vapeur des iodures alcalins et des melanges LiI-MI,
J. Chim. Phys., 1965, 62, 1176. [all data]
Friedman, 1955
Friedman, L.,
Mass spectrum of lithium iodide,
J. Chem. Phys., 1955, 23, 477. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy EA Electron affinity S°liquid,1 bar Entropy of liquid at standard conditions (1 bar) S°solid Entropy of solid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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