Benzenamine, N,N,3-trimethyl-
- Formula: C9H13N
- Molecular weight: 135.2062
- IUPAC Standard InChIKey: CWOMTHDOJCARBY-UHFFFAOYSA-N
- CAS Registry Number: 121-72-2
- 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-Toluidine, N,N-dimethyl-; m-Methyl-N,N-dimethylaniline; m,N,N-trimethylaniline; Benzene, 1-(dimethylamino)-3-methyl-; Dimethyl-m-toluidine; N,N-Dimethyl-m-methylaniline; N,N-Dimethyl-m-toluidine; N,N-Dimethyl-3-methylaniline; N,N,3-Trimethylaniline; N,N,3-Trimethylbenzenamine; N,N-Dimethyl-3-toluidine; Dimetil-m-toluidina; Benzeneamine,N,N,3-trimethyl-; 3-(Dimethylamino)toluene; NSC 1788; N,N-Dimethyl-m-ethylaniline
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Options:
Gas phase ion energetics data
Go To: Top, Mass spectrum (electron ionization), Gas Chromatography, References, Notes
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:
HL - Edward P. Hunter and Sharon G. Lias
Data compiled as indicated in comments:
B - John E. Bartmess
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 |
---|---|---|---|---|---|
Proton affinity (review) | 942.1 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 915.7 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
7.02 | EQ | Lias, Jackson, et al., 1985 | LBLHLM |
7.06 | PE | Cowling and Johnstone, 1973 | LLK |
7.35 | CTS | Farrell and Newton, 1965 | RDSH |
7.24 | PE | Kobayashi and Nagakura, 1974 | Vertical value; LLK |
7.24 | PE | Kobayashi and Nagakura, 1972 | Vertical value; LLK |
7.27 | PE | Kobayashi and Nagakura, 1972 | Vertical value; LLK |
De-protonation reactions
C9H12N- + =
By formula: C9H12N- + H+ = C9H13N
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1597. ± 21. | kJ/mol | G+TS | Caldwell and Bartmess | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1569. ± 21. | kJ/mol | IMRB | Caldwell and Bartmess | gas phase; B |
Mass spectrum (electron ionization)
Go To: Top, Gas phase ion energetics data, Gas Chromatography, 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- 585 |
NIST MS number | 229271 |
Gas Chromatography
Go To: Top, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | Carbowax 20M | 150. | 1653.2 | Ellis and Still, 1979 | Chromosorb W, AW-DMCS |
Packed | Carbowax 20M | 150. | 1653.6 | Ellis and Still, 1979 | Chromosorb W, AW-DMCS |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | OV-1 | 1164.6 | Gautzsch and Zinn, 1996 | 8. K/min; Tstart: 35. C; Tend: 300. C |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | SPB-1 | 1174. | Thomas and Bassols, 1992 | 5. K/min; Column length: 60. m; Tstart: 80. C; Tend: 230. C |
Normal alkane RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Supelcowax | 1664. | Thomas and Bassols, 1992 | 5. K/min; Column length: 60. m; Tstart: 80. C; Tend: 230. C |
References
Go To: Top, Gas phase ion energetics data, 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.
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Lias, Jackson, et al., 1985
Lias, S.G.; Jackson, J.-A.A.; Argentar, H.; Liebman, J.F.,
Substituted N,N-dialkylanilines: Relative ionization energies and proton affinities through determinations of ion-molecule reaction equilibrium constants,
J. Org. Chem., 1985, 50, 333. [all data]
Cowling and Johnstone, 1973
Cowling, S.A.; Johnstone, R.A.W.,
Photoelectron spectroscopy: The effects of steric inhibition to resonance in anilines,
J. Electron Spectrosc. Relat. Phenom., 1973, 2, 161. [all data]
Farrell and Newton, 1965
Farrell, P.G.; Newton, J.,
Ionization potentials of aromatic amines,
J. Phys. Chem., 1965, 69, 3506. [all data]
Kobayashi and Nagakura, 1974
Kobayashi, T.; Nagakura, S.,
Photoelectron spectra of substituted benzenes,
Bull. Chem. Soc. Jpn., 1974, 47, 2563. [all data]
Kobayashi and Nagakura, 1972
Kobayashi, T.; Nagakura, S.,
Photoelectron spectra of anilines,
Chem. Lett., 1972, 1013. [all data]
Caldwell and Bartmess
Caldwell, G.; Bartmess, J.E.,
, Unpublished results. [all data]
Ellis and Still, 1979
Ellis, T.S.; Still, R.H.,
Thermal degradation of polymers. XXI. Vacuum pyrolysis of poly(m-N,N-dimethylaminostyrene); the products volatile at pyrolysis temperature, liquid at room temperature,
J. Appl. Polym. Sci., 1979, 23, 10, 2837-2854, https://doi.org/10.1002/app.1979.070231002
. [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]
Thomas and Bassols, 1992
Thomas, A.F.; Bassols, F.,
Occurrence of pyridines and other bases in orange oil,
J. Agric. Food Chem., 1992, 40, 11, 2236-2243, https://doi.org/10.1021/jf00023a037
. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), Gas Chromatography, References
- Symbols used in this document:
ΔrG° Free energy of reaction at standard conditions 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.