Benzene, 1-isocyanato-3-methyl-
- Formula: C8H7NO
- Molecular weight: 133.1473
- IUPAC Standard InChIKey: CPPGZWWUPFWALU-UHFFFAOYSA-N
- CAS Registry Number: 621-29-4
- 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: m-Isocyanatotoluene; Isocyanic acid, m-tolyl ester; m-Methylphenyl isocyanate; 3-Methylphenyl isocyanate; m-Tolyl isocyanate; 3-Tolyl isocyanate
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Reaction thermochemistry data
Go To: Top, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), 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
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Individual Reactions
+ = C16H26N2O
By formula: C8H19N + C8H7NO = C16H26N2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -103.3 ± 0.8 | kJ/mol | Cm | Kiselev, Malkov, et al., 1989 | liquid phase; solvent: Dioxane |
By formula: C15H16N2O = C7H9N + C8H7NO
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 126.2 ± 1.7 | kJ/mol | Eqk | Chimishkyan, Svetlova, et al., 1984 | solid phase; Dissociation |
By formula: C10H14N2O = C2H7N + C8H7NO
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 109.9 | kJ/mol | Eqk | Chimishkyan, Svetlova, et al., 1984 | solid phase; Dissociation |
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: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.7 ± 0.1 | PE | Neijzen and DeLange, 1980 | Vertical value |
8.83 | PE | Kobayashi and Nagakura, 1975 | Vertical value |
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: Coblentz Society, Inc.
Condensed Phase Spectrum
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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.
Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
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Owner | COPYRIGHT (C) 1988 by COBLENTZ SOCIETY INC. Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | DOW CHEMICAL COMPANY |
Source reference | COBLENTZ NO. 6858 |
Date | 1952/04/04 |
Name(s) | 1-isocyanato-3-methylbenzene |
State | SOLUTION (10% CCl4 FOR 2-7.6, 10% CS2 FOR 7.6-15.9 MICRON) |
Instrument | BAIRD (GRATING) |
Instrument parameters | NaCl PRISM |
Path length | 0.011 CM, AND 0.010 CM SPECTRAL CONTAMINATION DUE TO CCl4 AROUND 1560 CM-1 HAS BEEN SUBTRACTED |
Resolution | 2 |
Sampling procedure | TRANSMISSION |
Data processing | DIGITIZED BY COBLENTZ SOCIETY (BATCH I) FROM HARD COPY |
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 | Japan AIST/NIMC Database- Spectrum MS-NW-2939 |
NIST MS number | 230514 |
References
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Kiselev, Malkov, et al., 1989
Kiselev, V.D.; Malkov, V.B.; Murzin, D.G.; Shakirov, I.M.; Konovalov, A.I.,
Thermochemical study of the reaction of isocyanate with amines,
Dokl. Phys. Chem. (Engl. Transl.), 1989, 308, 711-713, In original 111. [all data]
Chimishkyan, Svetlova, et al., 1984
Chimishkyan, A.L.; Svetlova, L.P.; Leonova, T.V.; Gluyaev, N.D.,
Thermal decomposition of substituted ureas,
J. Gen. Chem. USSR, 1984, 54, 1317-1320. [all data]
Neijzen and DeLange, 1980
Neijzen, B.J.M.; DeLange, C.A.,
Photoelectron spectroscopy of some thiocyanates, isocyanates and isothiocyanates,
J. Electron Spectrosc. Relat. Phenom., 1980, 18, 179. [all data]
Kobayashi and Nagakura, 1975
Kobayashi, T.; Nagakura, S.,
Photoelectron spectra of phenyl isocyanates and phenyl isothio- cyanate,
J. Electron Spectrosc. Relat. Phenom., 1975, 7, 488. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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