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Benzene, 1-iodo-3-methyl-

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Gas 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
Deltafgas133. ± 5.9kJ/molCcbSmith, 1956Heat of formation derived by Cox and Pilcher, 1970

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
Deltafliquid79.1 ± 4.2kJ/molCcbSmith, 1956Heat of formation derived by Cox and Pilcher, 1970
Quantity Value Units Method Reference Comment
Deltacliquid-3834.2 ± 4.2kJ/molCcbSmith, 1956Reanalyzed by Cox and Pilcher, 1970, Original value = -3830.4 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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Tboil486.2KN/AWeast and Grasselli, 1989BS
Quantity Value Units Method Reference Comment
Deltavap54.4 ± 4.2kJ/molVSmith, 1956Heat of formation derived by Cox and Pilcher, 1970; ALS

Reduced pressure boiling point

Tboil (K) Pressure (bar) Reference Comment
354.20.013Weast and Grasselli, 1989BS

Reaction 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: John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

C7H6I- + Hydrogen cation = Benzene, 1-iodo-3-methyl-

By formula: C7H6I- + H+ = C7H7I

Quantity Value Units Method Reference Comment
Deltar1557. ± 13.kJ/molG+TSWenthold, Wierschke, et al., 1994gas phase; Between MeCN and FCH2CH2OH
Quantity Value Units Method Reference Comment
Deltar1527. ± 13.kJ/molIMRBWenthold, Wierschke, et al., 1994gas phase; Between MeCN and FCH2CH2OH

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 as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
LL - Sharon G. Lias and Joel F. Liebman

Ionization energy determinations

IE (eV) Method Reference Comment
8.6 ± 0.1EITajima and Tsuchiya, 1972LLK
8.61 ± 0.03PIWatanabe, Nakayama, et al., 1962RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C5H5+14.5 ± 0.2C2H2+IEITajima and Tsuchiya, 1973LLK
C5H5+14.47 ± 0.15?EITajima and Tsuchiya, 1972LLK
C7H7+10.3 ± 0.20IPIDunbar, Honovich, et al., 1988LL
C7H7+11.0 ± 0.3?EIMcLafferty and Winkler, 1974LLK
C7H7+11.3 ± 0.1?EITajima and Tsuchiya, 1972LLK
C7H7+11.3IEIYeo and Williams, 1970RDSH

De-protonation reactions

C7H6I- + Hydrogen cation = Benzene, 1-iodo-3-methyl-

By formula: C7H6I- + H+ = C7H7I

Quantity Value Units Method Reference Comment
Deltar1557. ± 13.kJ/molG+TSWenthold, Wierschke, et al., 1994gas phase; Between MeCN and FCH2CH2OH; B
Quantity Value Units Method Reference Comment
Deltar1527. ± 13.kJ/molIMRBWenthold, Wierschke, et al., 1994gas phase; Between MeCN and FCH2CH2OH; B

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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IR spectrum
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Additional Data

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Owner SRD/NIST
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin EPA-IR VAPOR PHASE LIBRARY
State gas

This IR spectrum is from the NIST/EPA Gas-Phase Infrared Database .


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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Mass spectrum
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Additional Data

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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 107309

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


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

Van Den Dool and Kratz RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryOV-11121.8Gautzsch and Zinn, 19968. K/min; Tstart: 35. C; Tend: 300. C
PackedSE-301148.Buchman, Cao, et al., 1984He, 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

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Column type Active phase I Reference Comment
PackedCarbowax 20M1674.Buchman, Cao, et al., 1984He, Supelcoport, 40. C @ 10. min, 10. K/min, 210. C @ 30. min; Column length: 3.05 m

Normal alkane RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
PackedSE-301143.Peng, Ding, et al., 1988Helium, Supelcoport, 40. C @ 4. min, 10. K/min, 200. C @ 60. min; Column length: 3.05 m
PackedSE-301148.Peng, Ding, et al., 1988Helium, Supelcoport, 40. C @ 4. min, 10. K/min, 200. C @ 60. min; Column length: 3.05 m

Normal alkane RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryOV-1, SE-30, Methyl silicone, SP-2100, OV-101, DB-1, etc.1148.Waggott and Davies, 1984Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: not specified

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, 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]

Wenthold, Wierschke, et al., 1994
Wenthold, P.G.; Wierschke, S.G.; Nash, J.J.; Squires, R.R., Biradical thermochemistry from collision-induced dissociation threshold energy measurements .2. Experimental and theoretical studies of the Mechanism and Thermochemistry of Formation of alph, J. Am. Chem. Soc., 1994, 116, 16, 7378, https://doi.org/10.1021/ja00095a048 . [all data]

Tajima and Tsuchiya, 1972
Tajima, S.; Tsuchiya, T., The effects of the repeller voltage and the shield voltage on appearance potential measurements by electron impact, Shitsuryo Bunseki, 1972, 20, 117. [all data]

Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J., Ionization potentials of some molecules, J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]

Tajima and Tsuchiya, 1973
Tajima, S.; Tsuchiya, T., Energetics consideration of C5H5+ ions produced from various precursors by electron impact, Bull. Chem. Soc. Jpn., 1973, 46, 3291. [all data]

Dunbar, Honovich, et al., 1988
Dunbar, R.C.; Honovich, J.P.; Asamoto, B., Photodissociation thermochemistry as a probe of halotoluene ion potential surfaces, J. Phys. Chem., 1988, 92, 6935. [all data]

McLafferty and Winkler, 1974
McLafferty, F.W.; Winkler, J., Gaseous tropylium, benzyl, tolyl, and norbornadienyl cations, J. Am. Chem. Soc., 1974, 96, 5182. [all data]

Yeo and Williams, 1970
Yeo, A.N.H.; Williams, D.H., Rearrangement in the molecular ions of halogenotoluenes prior to fragmentation in the mass spectrometer, Chem. Commun., 1970, 886. [all data]

Gautzsch and Zinn, 1996
Gautzsch, R.; Zinn, P., Use of incremental models to estimate the retention indexes of aromatic compounds, Chromatographia, 1996, 43, 3/4, 163-176, https://doi.org/10.1007/BF02292946 . [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]

Peng, Ding, et al., 1988
Peng, C.T.; Ding, S.F.; Hua, R.L., Radioimpurity identification by retention index in tritium labeling, J. Radioanal. Nucl. Chem., 1988, 123, 2, 411-420, https://doi.org/10.1007/BF02034907 . [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, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References