Benzenamine, N,N,2-trimethyl-
- Formula: C9H13N
- Molecular weight: 135.2062
- IUPAC Standard InChIKey: JDEJGVSZUIJWBM-UHFFFAOYSA-N
- CAS Registry Number: 609-72-3
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: o-Toluidine, N,N-dimethyl-; o-Methyldimethylaniline; Benzene, 1-(dimethylamino)-2-methyl-; Dimethyl-o-toluidine; N,N-Dimethyl-o-toluidine; N,N-Dimethyl-2-methylaniline; N,N,2-Trimethylaniline; 2-Methyl-N,N-dimethylaniline; N,N,2-Trimethylbenzenamine; Benzeneamine,N,N,2-trimethyl-; 2,N,N-Trimethylaniline; NSC 1784; N,N'-dimethyl-o-toluidine
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Phase change 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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 458.5 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 458.45 | K | N/A | Lecat, 1943 | Uncertainty assigned by TRC = 0.35 K; TRC |
Tboil | 458.45 | K | N/A | Lecat, 1930 | Uncertainty assigned by TRC = 0.3 K; not clear that this is a new measurement; TRC |
Tboil | 458.65 | K | N/A | Perkin, 1896 | Uncertainty assigned by TRC = 0.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 213.15 | K | N/A | Timmermans, 1921 | Uncertainty assigned by TRC = 0.7 K; TRC |
Tfus | 211.85 | K | N/A | Timmermans, 1921 | Uncertainty assigned by TRC = 0.7 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 667.8 | K | N/A | Guye and Mallet, 1902 | Uncertainty assigned by TRC = 2.5 K; TRC |
Tc | 667.95 | K | N/A | Guye and Mallet, 1902, 2 | Uncertainty assigned by TRC = 1. K; TRC |
Tc | 667.95 | K | N/A | Guye and Mallet, 1902, 2 | Uncertainty assigned by TRC = 1. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 31.20 | bar | N/A | Guye and Mallet, 1902 | Uncertainty assigned by TRC = 0.9119 bar; TRC |
Pc | 31.2081 | bar | N/A | Guye and Mallet, 1902, 2 | Uncertainty assigned by TRC = 1.0132 bar; TRC |
Pc | 31.2081 | bar | N/A | Guye and Mallet, 1902, 2 | Uncertainty assigned by TRC = 1.0132 bar; TRC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
52.4 | 316. | A | Stephenson and Malanowski, 1987 | Based on data from 301. to 458. K. See also Stull, 1947.; AC |
Gas phase ion energetics data
Go To: Top, Phase change 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias
Data compiled as indicated in comments:
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) | 7.42 ± 0.02 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 951.8 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 925.3 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
7.40 ± 0.02 | PE | Maier and Turner, 1973 | LLK |
7.44 | PE | Cowling and Johnstone, 1973 | LLK |
7.37 | CTS | Farrell and Newton, 1965 | RDSH |
7.92 | PE | Kobayashi and Nagakura, 1974 | Vertical value; LLK |
7.92 | PE | Kobayashi and Nagakura, 1972 | Vertical value; LLK |
IR Spectrum
Go To: Top, Phase change 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
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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 | COBLENTZ SOCIETY Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | WYANDOTTE CHEMICALS CORP., WYANDOTTE, MICHIGAN, USA |
Source reference | COBLENTZ NO. 1564 |
Date | Not specified, most likely prior to 1970 |
Name(s) | N,N-dimethyl-N-(2-methylphenyl)amine N,N,2-trimethylaniline |
State | LIQUID |
Instrument | Not specified, most likely a prism, grating, or hybrid spectrometer. |
Path length | 0.003 CM |
Resolution | 4 |
Sampling procedure | TRANSMISSION |
Data processing | DIGITIZED BY NIST FROM HARD COPY |
Boiling point | 70 C AT 10 mmHg |
Mass spectrum (electron ionization)
Go To: Top, Phase change 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
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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- 586 |
NIST MS number | 229669 |
References
Go To: Top, Phase change 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.
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]
Lecat, 1943
Lecat, M.,
Azeotropes of Ethyl Urethane and other Azeotropes,
C. R. Hebd. Seances Acad. Sci., 1943, 217, 273. [all data]
Lecat, 1930
Lecat, M.,
Azeotropism in Binary Mixtures Containing an Alcohol Mixed with an amine, a nitro derivative, an ether or water.,
Z. Anorg. Allg. Chem., 1930, 186, 119. [all data]
Perkin, 1896
Perkin, W.H.,
LXIX. On Magnetic Rotatory Power, especially of Aromatic Compounds,
J. Chem. Soc., 1896, 69, 1025-1257. [all data]
Timmermans, 1921
Timmermans, J.,
The Freezing Points of Organic Substances IV. New Exp. Determinations,
Bull. Soc. Chim. Belg., 1921, 30, 62. [all data]
Guye and Mallet, 1902
Guye, P.A.; Mallet, E.,
Critical Constant and Molecular Complexity of Several Organic Compds.,
C. R. Hebd. Seances Acad. Sci., 1902, 133, 168. [all data]
Guye and Mallet, 1902, 2
Guye, P.A.; Mallet, E.,
Measurement of Critical Constants,
Arch. Sci. Phys. Nat., 1902, 13, 274-296. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
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]
Maier and Turner, 1973
Maier, J.P.; Turner, D.W.,
Steric inhibition of resonance studied by molecular photoelectron spectroscopy Part 3. Anilines, Phenols and Related Compounds,
J. Chem. Soc. Faraday Trans. 2, 1973, 69, 521. [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]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
IE (evaluated) Recommended ionization energy Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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