Methane, triiodo-
- Formula: CHI3
- Molecular weight: 393.7321
- IUPAC Standard InChIKey: OKJPEAGHQZHRQV-UHFFFAOYSA-N
- CAS Registry Number: 75-47-8
- 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: Iodoform; Triiodomethane; CHI3; NCI-C04568; Jodoform; Trijodmethane
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Condensed phase thermochemistry data
Go To: Top, Phase change 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 | 181.1 ± 1.0 | kJ/mol | Ccr | Carson, Laye, et al., 1993 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -717.5 ± 0.6 | kJ/mol | Ccr | Carson, Laye, et al., 1993 | ALS |
Constant pressure heat capacity of solid
Cp,solid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
157.5 | 298.15 | Carson, Laye, et al., 1993 | DH |
Phase change 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 as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 394.25 | K | N/A | Vanderwerf, Davidson, et al., 1948 | Uncertainty assigned by TRC = 0.4 K; TRC |
Tfus | 398.0 | K | N/A | Van de Vloed, 1939 | Uncertainty assigned by TRC = 0.6 K; TRC |
Tfus | 391.25 | K | N/A | Fruhwirth and Mayer-Pitsch, 1937 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tfus | 392.15 | K | N/A | Earp and Glasstone, 1935 | Uncertainty assigned by TRC = 1.5 K; TRC |
Tfus | 392. | K | N/A | Buechner, 1906 | Uncertainty assigned by TRC = 2. K; TRC |
Enthalpy of sublimation
ΔsubH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
69.9 | 323. | Nitta and Seki, 1943 | Based on data from 308. to 365. K.; AC |
Gas phase ion energetics data
Go To: Top, Condensed phase thermochemistry data, Phase change data, References, Notes
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:
L - Sharon G. Lias
Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
LL - Sharon G. Lias and Joel F. Liebman
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 9.23 ± 0.02 | eV | N/A | N/A | L |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.25 ± 0.02 | PI | Tsai, Baer, et al., 1975 | LLK |
9.21 | PE | Manne, Wittel, et al., 1975 | LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
CHI2+ | 9.54 | I | EI | Holmes, Lossing, et al., 1988 | LL |
CHI2+ | 9.77 ± 0.02 | I | PI | Tsai, Baer, et al., 1975 | LLK |
I2+ | 12.0 ± 0.1 | ? | EI | DeCorpo and Franklin, 1971 | LLK |
References
Go To: Top, Condensed phase thermochemistry data, Phase change 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.
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]
Vanderwerf, Davidson, et al., 1948
Vanderwerf, C.A.; Davidson, A.W.; Michaelis, C.I.,
Compound Formation Betwee 2,6-Lutidine and Polyhalogenated Methanes,
J. Am. Chem. Soc., 1948, 70, 908. [all data]
Van de Vloed, 1939
Van de Vloed, A.,
Bull. Soc. Chim. Belg., 1939, 48, 229. [all data]
Fruhwirth and Mayer-Pitsch, 1937
Fruhwirth, V.O.; Mayer-Pitsch, E.,
The Dielectric Investigation of Compound Formation in Binary Mixtures, Especially in the Diethyl Ether + Chlorform, Acetamide + Phenol and Iodoform + Quinoline Systems,
Z. Elektrochem., 1937, 43, 304. [all data]
Earp and Glasstone, 1935
Earp, D.P.; Glasstone, S.,
Dielectric polarisation and molecular-compound formation in solution,
J. Chem. Soc., 1935, 1935, 1709. [all data]
Buechner, 1906
Buechner, E.H.,
Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1906, 54, 665. [all data]
Nitta and Seki, 1943
Nitta, I.; Seki, S.,
J. Chem. Soc. Jpn., 1943, 64, 475. [all data]
Tsai, Baer, et al., 1975
Tsai, B.P.; Baer, T.; Werner, A.S.; Lin, S.F.,
A photoelectron-photoion coincidence study of the ionization and fragment appearance potentials of bromo- and iodomethanes,
J. Phys. Chem., 1975, 79, 570. [all data]
Manne, Wittel, et al., 1975
Manne, R.; Wittel, K.; Mohanty, B.S.,
Spin-orbit interaction in molecular photoelectron spectra. An intermediate coupling approach,
Mol. Phys., 1975, 29, 485. [all data]
Holmes, Lossing, et al., 1988
Holmes, J.L.; Lossing, F.P.; McFarlane, R.A.,
Stabilization energy and positional effects in halogen-substituted alkyl ions.,
Int. J. Mass Spectrom. Ion Phys., 1988, 86, 209. [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, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy Cp,solid Constant pressure heat capacity of solid IE (evaluated) Recommended ionization energy Tfus Fusion (melting) point ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔsubH Enthalpy of sublimation - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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