Benzoic acid, 2-iodo-
- Formula: C7H5IO2
- Molecular weight: 248.0179
- IUPAC Standard InChIKey: CJNZAXGUTKBIHP-UHFFFAOYSA-N
- CAS Registry Number: 88-67-5
- 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: Benzoic acid, o-iodo-; o-Iodobenzoic acid; 2-Iodobenzoic acid; USAF ek-572; Kyselina o-jodbenzoova
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, 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 | -202.8 ± 1.7 | kJ/mol | Ccr | Sabbah and Rojas Aguilar, 1996 |
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 |
---|---|---|---|---|---|
ΔfH°solid | -295.4 ± 1.7 | kJ/mol | Ccr | Sabbah and Rojas Aguilar, 1996 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -3173.7 ± 1.7 | kJ/mol | Ccr | Sabbah and Rojas Aguilar, 1996 | |
ΔcH°solid | -3228.8 ± 7.2 | kJ/mol | Ccb | Holdiness, 1983 | |
ΔcH°solid | -3167. ± 2. | kJ/mol | Ccb | Smith, 1956 |
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 |
---|---|---|---|---|---|
Ttriple | 435.02 | K | N/A | Tan and Sabbah, 1994 | Uncertainty assigned by TRC = 0.02 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 112.8 ± 2.0 | kJ/mol | N/A | Monte and Hillesheim, 2000 | AC |
ΔsubH° | 92.6 ± 0.2 | kJ/mol | C | Tan and Sabbah, 1994, 2 | See also Sabbah and Aguilar, 1995 and Tan and Sabbah, 1994, 3.; AC |
ΔsubH° | 103.0 ± 0.4 | kJ/mol | DSC | Holdiness, 1983, 2 | AC |
Enthalpy of sublimation
ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
111.4 ± 0.8 | 352. | ME | Monte and Hillesheim, 2000 | Based on data from 345. to 359. K.; AC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
21.38 | 435.1 | Tan and Sabbah, 1994, 3 | AC |
IR Spectrum
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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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Gas Phase Spectrum
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Additional Data
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Owner | NIST Standard Reference Data Program Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Sadtler Research Labs Under US-EPA Contract |
State | gas |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Sabbah and Rojas Aguilar, 1996
Sabbah, R.; Rojas Aguilar, A.,
Thermodynamic study of the three isomers of bromo and iodobenzoic acids. Part II,
Struct. Chem., 1996, 7, 383-390. [all data]
Holdiness, 1983
Holdiness, M.R.,
Heats of atomization and resonance energy of some ortho-substituted benzoic acids,
Thermochim. Acta, 1983, 71, 257-263. [all data]
Smith, 1956
Smith, L.,
Corrected heats of combustion of organic iodine compounds,
Acta Chem. Scand., 1956, 10, 884-886. [all data]
Tan and Sabbah, 1994
Tan, Z.-C.; Sabbah, R.,
Thermodynamic study of the three isomers of iodobenzoic acid,
Thermochim. Acta, 1994, 231, 109-20. [all data]
Monte and Hillesheim, 2000
Monte, Manuel J.S.; Hillesheim, Dorothea M.,
Thermodynamic study on the sublimation of the three iodobenzoic acids and of 2-fluoro- and 3-fluorobenzoic acids,
The Journal of Chemical Thermodynamics, 2000, 32, 12, 1727-1735, https://doi.org/10.1006/jcht.2000.0705
. [all data]
Tan and Sabbah, 1994, 2
Tan, Z.-C.; Sabbah, R.,
Thermodynamic study of the three isomers of iodobenzoic acid,
Chin. Sci. Bull., 1994, 39, 12, 1003. [all data]
Sabbah and Aguilar, 1995
Sabbah, Raphaël; Aguilar, Aaron Rojas,
Étude thermodynamique des trois isomères de l'acide chlorobenzoïque. Partie II,
Can. J. Chem., 1995, 73, 9, 1538-1545, https://doi.org/10.1139/v95-191
. [all data]
Tan and Sabbah, 1994, 3
Tan, Zhi-Cheng; Sabbah, Raphaël,
Thermodynamic study of the three isomers of iodobenzoic acid,
Thermochimica Acta, 1994, 231, 109-120, https://doi.org/10.1016/0040-6031(94)80012-X
. [all data]
Holdiness, 1983, 2
Holdiness, Mack R.,
Measurement of heats of sublimation of some ortho-substituted benzoic acids by differential scanning calorimetry,
Thermochimica Acta, 1983, 68, 2-3, 375-377, https://doi.org/10.1016/0040-6031(83)80240-8
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, References
- Symbols used in this document:
Ttriple Triple point temperature 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 ΔfusH Enthalpy of fusion ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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