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Benzenamine, N,N-dimethyl-

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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
Deltafgas100.5 ± 3.4kJ/molCcbFurukawa, Sakiyama, et al., 1982 
Deltafgas84.1kJ/molCcbVriens and Hill, 1952 

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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Deltafliquid47.7 ± 3.4kJ/molCcbFurukawa, Sakiyama, et al., 1982ALS
Deltafliquid34.kJ/molCcbVriens and Hill, 1952ALS
Quantity Value Units Method Reference Comment
Deltacliquid-4767.8 ± 3.2kJ/molCcbFurukawa, Sakiyama, et al., 1982ALS
Deltacliquid-4754.3kJ/molCcbVriens and Hill, 1952ALS

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
214.6302.4de Kolossowsky and Udowenko, 1934DH
214.6302.3Kolosovskii and Udovenko, 1934DH
209.6289.Radulescu and Jula, 1934DH
212.1283.Bramley, 1916Mean value, 0 to 20 C.; DH
212.1298.von Reis, 1881T = 292 to 478 K.; DH

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
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Kenneth Kroenlein director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil466. ± 3.KAVGN/AAverage of 10 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus275. ± 2.KAVGN/AAverage of 8 values; Individual data points
Quantity Value Units Method Reference Comment
Tc687.5 ± 0.6KAVGN/AAverage of 6 values; Individual data points
Quantity Value Units Method Reference Comment
Pc36.2 ± 0.5barAVGN/AAverage of 7 values; Individual data points
Quantity Value Units Method Reference Comment
Deltavap52. ± 3.kJ/molAVGN/AAverage of 6 values; Individual data points

Reduced pressure boiling point

Tboil (K) Pressure (bar) Reference Comment
350.20.017Weast and Grasselli, 1989BS

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
53.7 ± 0.5304.N/AVerevkin, 1997Based on data from 284. - 323. K.; AC
49.2378.AStephenson and Malanowski, 1987Based on data from 363. - 418. K.; AC
47.6317.AStephenson and Malanowski, 1987Based on data from 302. - 467. K. See also Stull, 1947.; AC
44.35465.7VMathews and Fehlandt, 1931ALS

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
302.7 - 466.34.830032117.236-27.606Stull, 1947Coefficents calculated by NIST from author's data.
344.17 - 469.934.847182132.497-26.116Nelson and Wales, 1925Coefficents calculated by NIST from author's data.

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
11.56275.6Ahmed and Eades, 1972AC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
ALS - 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

Bromine anion + Benzenamine, N,N-dimethyl- = (Bromine anion bullet Benzenamine, N,N-dimethyl-)

By formula: Br- + C8H11N = (Br- bullet C8H11N)

Quantity Value Units Method Reference Comment
Deltar49.0 ± 7.5kJ/molIMREPaul and Kebarle, 1991gas phase; «DELTA»Gaff measured at 303 K, corrected to 423 K, «DELTA»Saff taken as that of PhNO2..Br-; B,M
Quantity Value Units Method Reference Comment
Deltar84.J/mol*KN/APaul and Kebarle, 1991gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Deltar13. ± 4.2kJ/molIMREPaul and Kebarle, 1991gas phase; «DELTA»Gaff measured at 303 K, corrected to 423 K, «DELTA»Saff taken as that of PhNO2..Br-; B

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
13.423.PHPMSPaul and Kebarle, 1991gas phase; Entropy change calculated or estimated; M

C8H11N+ + Benzenamine, N,N-dimethyl- = (C8H11N+ bullet Benzenamine, N,N-dimethyl-)

By formula: C8H11N+ + C8H11N = (C8H11N+ bullet C8H11N)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Deltar66.5kJ/molPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Deltar110.J/mol*KN/AMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
33.304.PHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M

Aniline, N-methyl- = 0.5Benzenamine, N,N-dimethyl- + 0.5Aniline

By formula: C7H9N = 0.5C8H11N + 0.5C6H7N

Quantity Value Units Method Reference Comment
Deltar-3.kJ/molEqkMatvienko, Kachurin, et al., 1982liquid phase; Methansulfonic acid; ALS
Deltar-4.kJ/molKinKachurin, Matvienko, et al., 1979liquid phase; ALS

Benzenamine, N,N-dimethyl- + Hydrogen chloride = N,N-dimethylanilinium chloride

By formula: C8H11N + HCl = N,N-dimethylanilinium chloride

Quantity Value Units Method Reference Comment
Deltar-27.4 ± 0.4kJ/molCmChernick, Skinner, et al., 1955liquid phase; ALS

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 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)7.12 ± 0.02eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)941.1kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity909.2kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
7.15PEBehan, Johnstone, et al., 1976LLK
7.78EIHansen and Undheim, 1975LLK
7.10 ± 0.02PEMaier and Turner, 1973LLK
7.42CTSKobayashi, Kobayashi, et al., 1973LLK
7.11PECowling and Johnstone, 1973LLK
7.13 ± 0.04PIPotapov and Iskakov, 1971LLK
7.2CTSFinch, 1964RDSH
7.10 ± 0.05PIAkopyan and Vilesov, 1964RDSH
7.31CTSKinoshita, 1962RDSH
7.2CTSFoster, 1959RDSH
7.14 ± 0.03PIVilesov and Terenin, 1957RDSH
7.35PEKobayashi, 1978Vertical value; LLK
7.92PEKobayashi and Nagakura, 1974Vertical value; LLK
7.6PESchafer and Schweig, 1972Vertical value; LLK
7.37PEKobayashi and Nagakura, 1972Vertical value; LLK
7.51PEBaker, May, et al., 1968Vertical value; RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C6H5+15.7 ± 0.1?EIGowenlock, Jones, et al., 1961RDSH
C8H10N+10.56 ± 0.05HPIPotapov and Iskakov, 1971LLK
C8H10N+10.75 ± 0.05HPIAkopyan and Vilesov, 1964RDSH

Ion clustering data

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), 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:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

Bromine anion + Benzenamine, N,N-dimethyl- = (Bromine anion bullet Benzenamine, N,N-dimethyl-)

By formula: Br- + C8H11N = (Br- bullet C8H11N)

Quantity Value Units Method Reference Comment
Deltar49.0 ± 7.5kJ/molIMREPaul and Kebarle, 1991gas phase; «DELTA»Gaff measured at 303 K, corrected to 423 K, «DELTA»Saff taken as that of PhNO2..Br-; B,M
Quantity Value Units Method Reference Comment
Deltar84.J/mol*KN/APaul and Kebarle, 1991gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Deltar13. ± 4.2kJ/molIMREPaul and Kebarle, 1991gas phase; «DELTA»Gaff measured at 303 K, corrected to 423 K, «DELTA»Saff taken as that of PhNO2..Br-; B

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
13.423.PHPMSPaul and Kebarle, 1991gas phase; Entropy change calculated or estimated; M

C8H11N+ + Benzenamine, N,N-dimethyl- = (C8H11N+ bullet Benzenamine, N,N-dimethyl-)

By formula: C8H11N+ + C8H11N = (C8H11N+ bullet C8H11N)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Deltar66.5kJ/molPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Deltar110.J/mol*KN/AMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M

Free energy of reaction

DeltarG° (kJ/mol) T (K) Method Reference Comment
33.304.PHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; Entropy change calculated or estimated; M

IR Spectrum

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), References, Notes

Data compiled by: Coblentz Society, Inc.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director


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 NIST Mass Spectrometry Data Center, 1990.
NIST MS number 118735

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References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering 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.

Furukawa, Sakiyama, et al., 1982
Furukawa, J.; Sakiyama, M.; Seki, S.; Saito, Y.; Kusano, K., Standard enthalpies of combustion and vaporization of N,N-dimethylaniline, Bull. Chem. Soc. Jpn., 1982, 55, 3329-3330. [all data]

Vriens and Hill, 1952
Vriens, G.N.; Hill, A.G., Equilibria of several reactions of aromatic amines, Ind. Eng. Chem., 1952, 44, 2732-27. [all data]

de Kolossowsky and Udowenko, 1934
de Kolossowsky, N.; Udowenko, W.W., Determination des chaleurs specifiques des liquides, Compt. rend., 1934, 198, 1394-1395. [all data]

Kolosovskii and Udovenko, 1934
Kolosovskii, N.A.; Udovenko, W.W., Specific heat of liquids. II., Zhur. Obshchei Khim., 1934, 4, 1027-1033. [all data]

Radulescu and Jula, 1934
Radulescu, D.; Jula, O., Beiträge zur Bestimmung der Abstufung der Polarität des Aminstickstoffes in den organischen Verbindungen, Z. Phys. Chem., 1934, B26, 390-393. [all data]

Bramley, 1916
Bramley, A., The study of binary mixtures. Part IV. Heats of reaction and specific heats, J. Chem. Soc. (London), 1916, 109, 496-515. [all data]

von Reis, 1881
von Reis, M.A., Die specifische Wärme flüssiger organischer Verbindungen und ihre Beziehung zu deren Moleculargewicht, Ann. Physik [3], 1881, 13, 447-464. [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]

Verevkin, 1997
Verevkin, Sergey P., Thermochemistry of amines: experimental standard molar enthalpies of formation of some aliphatic and aromatic amines, The Journal of Chemical Thermodynamics, 1997, 29, 8, 891-899, https://doi.org/10.1006/jcht.1997.0212 . [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]

Mathews and Fehlandt, 1931
Mathews, J.H.; Fehlandt, P.R., The heats of vaporization of some organic compounds, J. Am. Chem. Soc., 1931, 53, 3212-32. [all data]

Nelson and Wales, 1925
Nelson, O.A.; Wales, H., Vapor Pressures and Boiling Points of Mono- and Dimthylanilines and Mono- and Diethylanilines, J. Am. Chem. Soc., 1925, 47, 3, 867-872, https://doi.org/10.1021/ja01680a040 . [all data]

Ahmed and Eades, 1972
Ahmed, A.M.I.; Eades, R.G., Proton relaxation in solid aniline and some methyl derivatives, J. Chem. Soc., Faraday Trans. 2, 1972, 68, 2017, https://doi.org/10.1039/f29726802017 . [all data]

Paul and Kebarle, 1991
Paul, G.J.C.; Kebarle, P., Stabilities of Complexes of Br- with Substituted Benzenes (SB) Based on Determinations of the Gas-Phase Equilibria Br- + SB = (BrSB)-, J. Am. Chem. Soc., 1991, 113, 4, 1148, https://doi.org/10.1021/ja00004a014 . [all data]

Meot-Ner (Mautner) and El-Shall, 1986
Meot-Ner (Mautner), M.; El-Shall, M.S., Ionic Charge Transfer Complexes. 1. Cationic Complexes with Delocalized and Partially Localized pi Systems, J. Am. Chem. Soc., 1986, 108, 15, 4386, https://doi.org/10.1021/ja00275a026 . [all data]

Matvienko, Kachurin, et al., 1982
Matvienko, N.M.; Kachurin, O.I.; Chekhuta, V.G., Kinetics and equilibrium of the transalkylation reaction of N-methylarylamines, Russ. Chem. Rev., 1982, 48, 42-45. [all data]

Kachurin, Matvienko, et al., 1979
Kachurin, O.I.; Matvienko, N.M.; Chekhuta, V.G., Disproportionation of N-methylaniline, Russ. Chem. Rev., 1979, 45, 43-47. [all data]

Chernick, Skinner, et al., 1955
Chernick, C.L.; Skinner, H.A.; Mortimer, C.T., Thermochemistry of organophosphorus compounds. Part I. Trimethyl and triethyl phosphites, J. Chem. Soc., 1955, 3936-39. [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]

Behan, Johnstone, et al., 1976
Behan, J.M.; Johnstone, R.A.W.; Bentley, T.W., An evaluation of empirical methods for calculating the ionization potentials of substituted benzenes, Org. Mass Spectrom., 1976, 11, 207. [all data]

Hansen and Undheim, 1975
Hansen, P.E.; Undheim, K., Mass spectrometry of onium compounds. XXIX. Ionisation potential in structure analysis of valence isomers, Acta Chem. Scand., Ser. B, 1975, 29, 221. [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]

Kobayashi, Kobayashi, et al., 1973
Kobayashi, H.; Kobayashi, M.; Kaizu, Y., Molecular complexes of arenetricarbonylchromium, Bull. Chem. Soc. Jpn., 1973, 46, 3109. [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]

Potapov and Iskakov, 1971
Potapov, V.K.; Iskakov, L.I., Electronic structure and photoionization of aromatic amines, High Energy Chem., 1971, 5, 237, In original 264. [all data]

Finch, 1964
Finch, A.C.M., Charge-transfer spectra and the ionization energy of azulene, J. Chem. Soc., 1964, 2272. [all data]

Akopyan and Vilesov, 1964
Akopyan, M.E.; Vilesov, F.I., Excited states of positive ions and dissociative photoionization of aromatic amines, Dokl. Akad. Nauk SSSR, 1964, 158, 1386, In original 965. [all data]

Kinoshita, 1962
Kinoshita, M., The absorption spectra of the molecular complexes of aromatic compounds with p-bromanil, Bull. Chem. Soc. Japan, 1962, 35, 1609. [all data]

Foster, 1959
Foster, R., Ionization potentials of electron donors, Nature (London), 1959, 183, 1253. [all data]

Vilesov and Terenin, 1957
Vilesov, F.I.; Terenin, A.N., The photoionization of the vapors of certain organic compounds, Dokl. Akad. Nauk SSSR, 1957, 115, 744, In original 539. [all data]

Kobayashi, 1978
Kobayashi, T., A simple general tendency in photoelectron angular distributions of some monosubstituted benzenes, Phys. Lett., 1978, 69, 105. [all data]

Kobayashi and Nagakura, 1974
Kobayashi, T.; Nagakura, S., Photoelectron spectra of substituted benzenes, Bull. Chem. Soc. Jpn., 1974, 47, 2563. [all data]

Schafer and Schweig, 1972
Schafer, W.; Schweig, A., Zur Konjugation in aromatischen Aminen und Phosphanen, Angew. Chem., 1972, 84, 898. [all data]

Kobayashi and Nagakura, 1972
Kobayashi, T.; Nagakura, S., Photoelectron spectra of anilines, Chem. Lett., 1972, 1013. [all data]

Baker, May, et al., 1968
Baker, A.D.; May, D.P.; Turner, D.W., Molecular photoelectron spectroscopy. Part VII. The vertical ionisation potentials of benzene and some of its monosubstituted and 1,4-disubstituted derivatives, J. Chem. Soc. B, 1968, 22. [all data]

Gowenlock, Jones, et al., 1961
Gowenlock, B.G.; Jones, P.P.; Majer, J.R., Bond dissociation energies in some molecules containing alkyl substituted CH3, NH2, and OH, J. Chem. Soc. Faraday Trans., 1961, 57, 23. [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, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), References