Benzene, iodo-
- Formula: C6H5I
- Molecular weight: 204.0084
- IUPAC Standard InChIKey: SNHMUERNLJLMHN-UHFFFAOYSA-N
- CAS Registry Number: 591-50-4
- 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 iodide; Iodobenzene; Phenyl iodide
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Henry's Law 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: Rolf Sander
Henry's Law constant (water solution)
kH(T) = k°H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
k°H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(kH))/d(1/T) = Temperature dependence constant (K)
k°H (mol/(kg*bar)) | d(ln(kH))/d(1/T) (K) | Method | Reference | Comment |
---|---|---|---|---|
0.74 | Q | N/A | missing citation give several references for the Henry's law constants but don't assign them to specific species. | |
0.78 | L | N/A |
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 evaluated as indicated in comments:
L - Sharon G. Lias
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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 8.72 ± 0.04 | eV | N/A | N/A | L |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.79 | PE | Fujisawa, Ohno, et al., 1986 | LBLHLM |
8.75 | PE | Klasinc, Kovac, et al., 1983 | LBLHLM |
8.685 | PIPECO | Dannacher, Rosenstock, et al., 1983 | LBLHLM |
8.79 | PE | Kimura, Katsumata, et al., 1981 | LLK |
8.70 | PE | Behan, Johnstone, et al., 1976 | LLK |
9.05 | EI | Baldwin, Loudon, et al., 1976 | LLK |
8.77 ± 0.02 | PIPECO | Baer, Tsai, et al., 1976 | LLK |
8.67 | PE | Boschi and Salahub, 1974 | LLK |
8.73 ± 0.01 | PI | Sergeev, Akopyan, et al., 1970 | RDSH |
8.685 | PI | Momigny, Goffart, et al., 1968 | RDSH |
8.73 ± 0.03 | PI | Watanabe, 1957 | RDSH |
8.801 | PE | Potts, Lyus, et al., 1980 | Vertical value; LLK |
8.67 | PE | Sell and Kupperman, 1978 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C6H5+ | 11.07 ± 0.07 | I | PI | Malinovich and Lifshitz, 1986 | LBLHLM |
C6H5+ | 10.6 ± 0.1 | I | TRPI | Lifshitz and Malinovich, 1984 | LBLHLM |
C6H5+ | 10.55 ± 0.01 | I | EI | Gefen and Lifshitz, 1984 | LBLHLM |
C6H5+ | 11.2 ± 0.9 | I | PI | Dunbar and Honovich, 1984 | LBLHLM |
C6H5+ | 11.32 ± 0.05 | I | EI | Burgers and Holmes, 1984 | LBLHLM |
C6H5+ | 11.4 ± 0.1 | I | EI | Burgers and Holmes, 1984 | LBLHLM |
C6H5+ | 11.015 | I | PIPECO | Dannacher, Rosenstock, et al., 1983 | LBLHLM |
C6H5+ | 11.4 ± 0.1 | I | EI | Burgers and Holmes, 1982 | LBLHLM |
C6H5+ | 11.27 | I | PIPECO | Baer, Tsai, et al., 1976 | LLK |
C6H5+ | 11.34 | I | EI | Johnstone and Mellon, 1972 | LLK |
C6H5+ | 11.06 ± 0.04 | I | PI | Sergeev, Akopyan, et al., 1970 | RDSH |
C6H5+ | 11.46 | I | EI | Howe and Williams, 1969 | RDSH |
Ion clustering 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:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.
Clustering reactions
By formula: C6H7N+ + C6H5I = (C6H7N+ • C6H5I)
Bond type: Charge transfer bond (positive ion)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 13.3 | kcal/mol | PHPMS | Meot-Ner (Mautner) and El-Shall, 1986 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 26. | cal/mol*K | N/A | Meot-Ner (Mautner) and El-Shall, 1986 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
4.8 | 324. | PHPMS | Meot-Ner (Mautner) and El-Shall, 1986 | gas phase; Entropy change calculated or estimated; M |
By formula: Cl- + C6H5I = (Cl- • C6H5I)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrG° | 7.20 | kcal/mol | TDEq | French, Ikuta, et al., 1982 | gas phase; B |
Free energy of reaction
ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
7.2 | 300. | PHPMS | French, Ikuta, et al., 1982 | gas phase; M |
IR Spectrum
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Data compiled by: Coblentz Society, Inc.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Mass spectrum (electron ionization)
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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
Spectrum
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Additional Data
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Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Chuck Anderson, Aldrich Chemical Co. |
NIST MS number | 107742 |
UV/Visible 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: Victor Talrose, Eugeny B. Stern, Antonina A. Goncharova, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina
Spectrum
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Additional Data
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Source | missing citation |
---|---|
Owner | INEP CP RAS, NIST OSRD Collection (C) 2007 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
Origin | INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS |
Source reference | RAS UV No. 8984 |
Instrument | Unicam SP 500 or Hilger Ultrascan |
Melting point | -31.3 |
Boiling point | 188.4 |
Gas Chromatography
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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
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | C78, Branched paraffin | 130. | 1079.6 | Dallos, Sisak, et al., 2000 | He; Column length: 3.3 m |
Packed | Apolane | 150. | 1088. | Evans and Haken, 1987 | He, Chromosorb G AW DCMS; Column length: 3.7 m |
Packed | Apolane | 150. | 1088. | Haken and Vernon, 1986 | Chromosorb G AW DCMS; Column length: 3.7 m |
Packed | SE-30 | 180. | 1075. | Oszczapowicz, Osek, et al., 1984 | N2, Chromosorb W AW; Column length: 3. m |
Packed | SE-30 | 150. | 1050. | Tiess, 1984 | Ar, Gas Chrom Q (80-100 mesh); Column length: 3. m |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Packed | SE-30 | 1033. | Buchman, Cao, et al., 1984 | He, Chromosorb AW, 40. C @ 10. min, 10. K/min, 210. C @ 30. min; Column length: 3.05 m |
Van Den Dool and Kratz RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Packed | Carbowax 20M | 1569. | Buchman, Cao, et al., 1984 | He, Supelcoport, 40. C @ 10. min, 10. K/min, 210. C @ 30. min; Column length: 3.05 m |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Packed | SE-30 | 1033. | Buchman, Cao, et al., 1984 | He, Chromosorb AW; Column length: 3.05 m; Program: not specified |
Capillary | OV-1, SE-30, Methyl silicone, SP-2100, OV-101, DB-1, etc. | 1033. | Waggott and Davies, 1984 | Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: not specified |
Normal alkane RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Carbowax 400, Carbowax 20M, Carbowax 1540, Carbowax 4000, Superox 06, PEG 20M, etc. | 1569. | Waggott and Davies, 1984 | Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: not specified |
References
Go To: Top, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Fujisawa, Ohno, et al., 1986
Fujisawa, S.; Ohno, K.; Masuda, S.; Harada, Y.,
Penning ionization electron spectroscopy of monohalogenobenzenes: C6H5F, C6H5Cl, C6H5Br, and C6H5I,
J. Am. Chem. Soc., 1986, 108, 6505. [all data]
Klasinc, Kovac, et al., 1983
Klasinc, L.; Kovac, B.; Gusten, H.,
Photoelectron spectra of acenes. Electronic structure and substituent effects,
Pure Appl. Chem., 1983, 55, 289. [all data]
Dannacher, Rosenstock, et al., 1983
Dannacher, J.; Rosenstock, H.M.; Buff, R.; Parr, A.C.; Stockbauer, R.L.; Bombach, R.; Stadelmann, J.-P.,
Benchmark measurement of iodobenzene ion fragmentation rates,
Chem. Phys., 1983, 75, 23. [all data]
Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S.,
Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules
in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]
Behan, Johnstone, et al., 1976
Behan, J.M.; Johnstone, R.A.W.; Bentley, T.W.,
An evaluation of empirical methods for calculating the ionization potentials of substituted benzenes,
Org. Mass Spectrom., 1976, 11, 207. [all data]
Baldwin, Loudon, et al., 1976
Baldwin, M.A.; Loudon, A.G.; Maccoll, A.; Webb, K.S.,
The nature and fragmentation pathways of the molecular ions of some arylureas, arylthioureas, acetanilides, thioacetanilides and related compounds,
Org. Mass Spectrom., 1976, 11, 1181. [all data]
Baer, Tsai, et al., 1976
Baer, T.; Tsai, B.P.; Smith, D.; Murray, P.T.,
Absolute unimolecular decay rates of energy selected metastable halobenzene ions,
J. Chem. Phys., 1976, 64, 2460. [all data]
Boschi and Salahub, 1974
Boschi, R.A.A.; Salahub, D.R.,
The high resolution photoelectron spectra of some iodoalkanes, iodocycloalkanes, iodoalkenes, and fluoroiodohydrocarbons,
Can. J. Chem., 1974, 52, 1217. [all data]
Sergeev, Akopyan, et al., 1970
Sergeev, Yu.L.; Akopyan, M.E.; Vilesov, F.I.; Kleimenov, V.I.,
Photoionization processes in phenyl halides,
Opt. i Spektroskopiya, 1970, 29, 119, In original 63. [all data]
Momigny, Goffart, et al., 1968
Momigny, J.; Goffart, C.; D'Or, L.,
Photoionization studies by total ionization measurements. I. Benzene and its monohalogeno derivatives,
Intern. J. Mass Spectrom. Ion Phys., 1968, 1, 53. [all data]
Watanabe, 1957
Watanabe, K.,
Ionization potentials of some molecules,
J. Chem. Phys., 1957, 26, 542. [all data]
Potts, Lyus, et al., 1980
Potts, A.W.; Lyus, M.L.; Lee, E.P.F.; Fattahallah, G.H.,
High resolution ultraviolet photoelectron spectra of C6H5X and p-C6H4X2 where X = Cl, Br or I,
J. Chem. Soc. Faraday Trans. 2, 1980, 76, 556. [all data]
Sell and Kupperman, 1978
Sell, J.A.; Kupperman, A.,
Angular distributions in the photoelectron spectra of benzene and its monohalogenated derivatives,
Chem. Phys., 1978, 33, 367. [all data]
Malinovich and Lifshitz, 1986
Malinovich, Y.; Lifshitz, C.,
Time-dependent mass spectra and breakdown graphs. 7. Time-resolved photoionization mass spectrometry of iodobenzene. The heat of formation of C6H5+,
J. Phys. Chem., 1986, 90, 2200. [all data]
Lifshitz and Malinovich, 1984
Lifshitz, C.; Malinovich, Y.,
Time resolved photoionization mass spectrometry in the millisecond range,
Int. J. Mass Spectrom. Ion Processes, 1984, 60, 99. [all data]
Gefen and Lifshitz, 1984
Gefen, S.; Lifshitz, C.,
Time-dependent mass spectra and breakdown graphs. V. The kinetic shift in iodobenzene,
Int. J. Mass Spectrom. Ion Processes, 1984, 58, 251. [all data]
Dunbar and Honovich, 1984
Dunbar, R.C.; Honovich, J.P.,
Threshold ion photodissociation. Bromobenzene and iodobenzene ions,
Int. J. Mass Spectrom. Ion Processes, 1984, 58, 25. [all data]
Burgers and Holmes, 1984
Burgers, P.C.; Holmes, J.L.,
Fragmentation rate constants and appearance energies for reactions having a large kinetic shift and the energy partitioning in their metastable decomposition,
Int. J. Mass Spectrom. Ion Processes, 1984, 58, 15. [all data]
Burgers and Holmes, 1982
Burgers, P.C.; Holmes, J.L.,
Metastable ion studies. XIII. The measurement of appearance energies of metastable peaks,
Org. Mass Spectrom., 1982, 17, 123. [all data]
Johnstone and Mellon, 1972
Johnstone, R.A.W.; Mellon, F.A.,
Electron-impact ionization and appearance potentials,
J. Chem. Soc. Faraday Trans. 2, 1972, 68, 1209. [all data]
Howe and Williams, 1969
Howe, I.; Williams, D.H.,
Calculation and qualitative predictions of mass spectra. Mono- and paradisubstituted benzenes,
J. Am. Chem. Soc., 1969, 91, 7137. [all data]
Meot-Ner (Mautner) and El-Shall, 1986
Meot-Ner (Mautner), M.; El-Shall, M.S.,
Ionic Charge Transfer Complexes. 1. Cationic Complexes with Delocalized and Partially Localized pi Systems,
J. Am. Chem. Soc., 1986, 108, 15, 4386, https://doi.org/10.1021/ja00275a026
. [all data]
French, Ikuta, et al., 1982
French, M.A.; Ikuta, S.; Kebarle, P.,
Hydrogen bonding of O-H and C-H hydrogen donors to Cl-. Results from mass spectrometric measurement of the ion-molecule equilibria RH + Cl- = RHCl-,
Can. J. Chem., 1982, 60, 1907. [all data]
Dallos, Sisak, et al., 2000
Dallos, A.; Sisak, A.; Kulcsár, Z.; Kováts, E.,
Pair-wise interactions by gas chromatography VII. Interaction free enthalpies of solutes with secondary alcohol groups,
J. Chromatogr. A, 2000, 904, 2, 211-242, https://doi.org/10.1016/S0021-9673(00)00908-0
. [all data]
Evans and Haken, 1987
Evans, M.B.; Haken, J.K.,
Dispersion and selectivity indices of the halogenated derivatives of cyclohexane, benzene and anisole,
J. Chromatogr., 1987, 389, 240-244, https://doi.org/10.1016/S0021-9673(01)94428-0
. [all data]
Haken and Vernon, 1986
Haken, J.K.; Vernon, F.,
Gas chromatography of halogenated derivatives of cyclohexane, benzene and anisole,
J. Chromatogr., 1986, 361, 57-61, https://doi.org/10.1016/S0021-9673(01)86893-X
. [all data]
Oszczapowicz, Osek, et al., 1984
Oszczapowicz, J.; Osek, J.; Dolecka, E.,
Retention indices of dimethylformamidines, dimethylacetamidines and tetramethylguanidines on a non-polar column,
J. Chromatogr., 1984, 315, 95-100, https://doi.org/10.1016/S0021-9673(01)90727-7
. [all data]
Tiess, 1984
Tiess, D.,
Gaschromatographische Retentionsindices von 125 leicht- bis mittelflüchtigen organischen Substanzen toxikologisch-analytischer Relevanz auf SE-30,
Wiss. Z. Wilhelm-Pieck-Univ. Rostock Math. Naturwiss. Reihe, 1984, 33, 6-9. [all data]
Buchman, Cao, et al., 1984
Buchman, O.; Cao, G.-Y.; Peng, C.T.,
Structure assignment by retention index in gas-liquid radiochromatography of substituted cyclohexenes,
J. Chromatogr., 1984, 312, 75-90, https://doi.org/10.1016/S0021-9673(01)92765-7
. [all data]
Waggott and Davies, 1984
Waggott, A.; Davies, I.W.,
Identification of organic pollutants using linear temperature programmed retention indices (LTPRIs) - Part II, 1984, retrieved from http://dwi.defra.gov.uk/research/completed-research/reports/dwi0383.pdf. [all data]
Notes
Go To: Top, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy T Temperature d(ln(kH))/d(1/T) Temperature dependence parameter for Henry's Law constant k°H Henry's Law constant at 298.15K ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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