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
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Options:
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
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
+ = C16H26N2O
By formula: C8H19N + C8H7NO = C16H26N2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -24.7 ± 0.2 | kcal/mol | Cm | Kiselev, Malkov, et al., 1989 | liquid phase; solvent: Dioxane |
By formula: C15H16N2O = C7H9N + C8H7NO
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 30.16 ± 0.41 | kcal/mol | Eqk | Chimishkyan, Svetlova, et al., 1984 | solid phase; Dissociation |
By formula: C10H14N2O = C2H7N + C8H7NO
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 26.27 | kcal/mol | Eqk | Chimishkyan, Svetlova, et al., 1984 | solid phase; Dissociation |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry 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: 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
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, 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: Coblentz Society, Inc.
Condensed Phase Spectrum
Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.
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
View scan of original (hardcopy) spectrum.
View image of digitized spectrum (can be printed in landscape orientation).
View spectrum image in SVG format.
Download spectrum in JCAMP-DX format.
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)
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.
Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
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
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.