Benzene, 1,3-diiodo-
- Formula: C6H4I2
- Molecular weight: 329.9049
- IUPAC Standard InChIKey: SFPQFQUXAJOWNF-UHFFFAOYSA-N
- CAS Registry Number: 626-00-6
- 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: Benzene, m-diiodo-; m-Diiodobenzene; 1,3-Diiodobenzene
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Condensed 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔcH°solid | -3119.6 ± 4.2 | kJ/mol | Ccb | Smith, 1956 | Reanalyzed by Cox and Pilcher, 1970, Original value = -3117.6 ± 7.1 kJ/mol |
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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 558.2 | K | N/A | Weast and Grasselli, 1989 | BS |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 308. | K | N/A | Andrews and Keefer, 1951 | Uncertainty assigned by TRC = 1.5 K; TRC |
Tfus | 310. | K | N/A | Timmermans, 1935 | Uncertainty assigned by TRC = 1.5 K; TRC |
Tfus | 307.35 | K | N/A | Narbutt, 1918 | Uncertainty assigned by TRC = 0.5 K; TRC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
15.93 | 307.4 | Acree, 1991 | AC |
15.943 | 307.35 | Narbutt, 1918, 2 | DH |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
51.9 | 307.35 | Narbutt, 1918, 2 | DH |
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: Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C6H4+ | 13.4 ± 0.2 | ? | EI | Grutzmacher and Lohmann, 1967 |
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.
Smith, 1956
Smith, L.,
Corrected heats of combustion of organic iodine compounds,
Acta Chem. Scand., 1956, 10, 884-886. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Andrews and Keefer, 1951
Andrews, L.J.; Keefer, R.M.,
The Argentation of Organic Iodides,
J. Am. Chem. Soc., 1951, 73, 5733-5736. [all data]
Timmermans, 1935
Timmermans, J.,
Researches in Stoichiometry. I. The Heat of Fusion of Organic Compounds.,
Bull. Soc. Chim. Belg., 1935, 44, 17-40. [all data]
Narbutt, 1918
Narbutt, J.,
The specific heats and heats of melting of dichlorobenzene, bromochlorobenzene, dibromobenzene, bromiodobenzene and diiodobenzenes: I,
Z. Elektrochem. Angew. Phys. Chem., 1918, 24, 339-42. [all data]
Acree, 1991
Acree, William E.,
Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation,
Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H
. [all data]
Narbutt, 1918, 2
Narbutt, J.,
Die Spezifischen Warmen und Schmelzwarmen der dichloro-, chlorbrom-, dibrom-, bromjod-, und dijodbenzole. I,
Z. Elektrochem., 1918, 24, 339-342. [all data]
Grutzmacher and Lohmann, 1967
Grutzmacher, H.-F.; Lohmann, J.,
Massenspektrometrie instabiler organischer Molekule. I. Ionisations-potential und Bildungsenthalpie von Dehydrobenzol,
Ann. Chem., 1967, 705, 81. [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 Tboil Boiling point Tfus Fusion (melting) point ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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