Methane, tetraiodo-
- Formula: CI4
- Molecular weight: 519.6286
- IUPAC Standard InChI: InChI=1S/CI4/c2-1(3,4)5
- IUPAC Standard InChIKey: JOHCVVJGGSABQY-UHFFFAOYSA-N
- CAS Registry Number: 507-25-5
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Carbon tetraiodide; Carbon iodide (CI4); Tetraiodomethane; CI4; Carbon iodide
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, 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.
Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | 267.94 | kJ/mol | Cm | Kudchadker and Kudchadker, 1976 |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, 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.
Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°solid | 392.2 ± 8.2 | kJ/mol | Ccr | Carson, Laye, et al., 1993 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -786.4 ± 8.0 | kJ/mol | Ccr | Carson, Laye, et al., 1993 | ALS |
Constant pressure heat capacity of solid
| Cp,solid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 259.8 | 298.15 | Carson, Laye, et al., 1993 | DH |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, 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:
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
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 8.95 | PE | Jonkers, De Lange, et al., 1982 | LBLHLM |
| 9.10 | PE | Jonkers, De Lange, et al., 1982 | Vertical value; LBLHLM |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| I2+ | 11.3 ± 0.1 | ? | EI | DeCorpo and Franklin, 1971 | LLK |
References
Go To: Top, Gas phase thermochemistry data, 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.
Kudchadker and Kudchadker, 1976
Kudchadker, S.A.; Kudchadker, A.P.,
Erratum: Ideal gas thermodynamic properties of eight bromo- and iodomethanes,
J. Phys. Chem. Ref. Data, 1976, 5, 529-530. [all data]
Carson, Laye, et al., 1993
Carson, A.S.; Laye, P.G.; Pedley, J.B.; Welsby, A.M.,
The enthalpies of formation iodomethane, diiodomethane, triiodomethane, and tetraiodomethane by rotating combustion calorimetry,
J. Chem. Thermodyn., 1993, 25, 261-269. [all data]
Jonkers, De Lange, et al., 1982
Jonkers, G.; De Lange, C.A.; Snijders, J.G.,
Effects of relativity in the He(I) photoelectron spectrum of CI4,
Chem. Phys., 1982, 69, 109. [all data]
DeCorpo and Franklin, 1971
DeCorpo, J.J.; Franklin, J.L.,
Electron affinities of the halogen molecules by dissociative electron attachment,
J. Chem. Phys., 1971, 54, 1885. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy Cp,solid Constant pressure heat capacity of solid ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas 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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