Formamide, N-methyl-


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 by: Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference
126.63308.Kulikov, Krestov, et al., 1989
125.2298.15de Visser and Somsen, 1979
122.298.15Bonner and Cerutti, 1976
123.8298.15Skold, Suurkuusk, et al., 1976
126.1298.15de Visser and Somsen, 1974

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
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil455.7KN/AWeast and Grasselli, 1989BS
Quantity Value Units Method Reference Comment
Δvap56.19kJ/molN/AMajer and Svoboda, 1985 
Δvap54.4 ± 1.3kJ/molN/AUshakov, Sedov, et al., 1996Based on data from 340. to 440. K.; AC
Δvap56.2kJ/molABarone, Castronuovo, et al., 1985See also Varushchenko, 1986.; AC

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Method Reference Comment
53.8355.N/AUshakov, Sedov, et al., 1996Based on data from 340. to 440. K.; AC
54.5325.AStephenson and Malanowski, 1987Based on data from 310. to 391. K.; AC
53.4384.AStephenson and Malanowski, 1987Based on data from 369. to 472. K. See also Heinrich, Ilavsky, et al., 1961 and Dykyj, 1970.; AC

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
369.6 to 472.44.997962134.031-45.071Heinrich, Ilavsky, et al., 1961, 2Coefficents calculated by NIST from author's data.

Enthalpy of fusion

ΔfusH (kJ/mol) Temperature (K) Reference Comment
10.44270.6Ahlers, Lohmann, et al., 1999AC

Reaction thermochemistry data

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Data compiled as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar

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Individual Reactions

C2H4NO- + Hydrogen cation = Formamide, N-methyl-

By formula: C2H4NO- + H+ = C2H5NO

Quantity Value Units Method Reference Comment
Δr1508. ± 8.8kJ/molG+TSTaft, 1987gas phase; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Δr1479. ± 8.4kJ/molIMRETaft, 1987gas phase; value altered from reference due to change in acidity scale; B

pyrrolide anion + Formamide, N-methyl- = (pyrrolide anion • Formamide, N-methyl-)

By formula: C4H4N- + C2H5NO = (C4H4N- • C2H5NO)

Quantity Value Units Method Reference Comment
Δr110. ± 8.kJ/molPHPMSMeot-Ner (Mautner), 1988gas phase; M
Quantity Value Units Method Reference Comment
Δr130.J/mol*KPHPMSMeot-Ner (Mautner), 1988gas phase; M

C2H4NO- + Formamide, N-methyl- = (C2H4NO- • Formamide, N-methyl-)

By formula: C2H4NO- + C2H5NO = (C2H4NO- • C2H5NO)

Quantity Value Units Method Reference Comment
Δr120. ± 8.kJ/molPHPMSMeot-Ner (Mautner), 1988gas phase; M
Quantity Value Units Method Reference Comment
Δr130.J/mol*KPHPMSMeot-Ner (Mautner), 1988gas phase; M

Lithium ion (1+) + Formamide, N-methyl- = (Lithium ion (1+) • Formamide, N-methyl-)

By formula: Li+ + C2H5NO = (Li+ • C2H5NO)

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
166.373.CIDCHerreros, Gal, et al., 1999RCD

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:
B - John E. Bartmess
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)9.83 ± 0.04eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)851.3kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity820.3kJ/molN/AHunter and Lias, 1998HL

Electron affinity determinations

EA (eV) Reference Comment
0.0157Desfrancois, Periquet, et al., 1999B

Ionization energy determinations

IE (eV) Method Reference Comment
9.86PEKimura, Katsumata, et al., 1981LLK
10.00 ± 0.05EIBaldwin, Loudon, et al., 1977LLK
9.79PEBrundle, Turner, et al., 1969RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CHO+12.40?EILoudon and Webb, 1977LLK
CH4N+11.65?EILoudon and Webb, 1977LLK
C2H4NO+11.20?EILoudon and Webb, 1977LLK

De-protonation reactions

C2H4NO- + Hydrogen cation = Formamide, N-methyl-

By formula: C2H4NO- + H+ = C2H5NO

Quantity Value Units Method Reference Comment
Δr1508. ± 8.8kJ/molG+TSTaft, 1987gas phase; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Δr1479. ± 8.4kJ/molIMRETaft, 1987gas phase; value altered from reference due to change in acidity scale; B

Ion clustering 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:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar

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

C2H4NO- + Formamide, N-methyl- = (C2H4NO- • Formamide, N-methyl-)

By formula: C2H4NO- + C2H5NO = (C2H4NO- • C2H5NO)

Quantity Value Units Method Reference Comment
Δr120. ± 8.kJ/molPHPMSMeot-Ner (Mautner), 1988gas phase; M
Quantity Value Units Method Reference Comment
Δr130.J/mol*KPHPMSMeot-Ner (Mautner), 1988gas phase; M

pyrrolide anion + Formamide, N-methyl- = (pyrrolide anion • Formamide, N-methyl-)

By formula: C4H4N- + C2H5NO = (C4H4N- • C2H5NO)

Quantity Value Units Method Reference Comment
Δr110. ± 8.kJ/molPHPMSMeot-Ner (Mautner), 1988gas phase; M
Quantity Value Units Method Reference Comment
Δr130.J/mol*KPHPMSMeot-Ner (Mautner), 1988gas phase; M

Lithium ion (1+) + Formamide, N-methyl- = (Lithium ion (1+) • Formamide, N-methyl-)

By formula: Li+ + C2H5NO = (Li+ • C2H5NO)

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
166.373.CIDCHerreros, Gal, et al., 1999RCD

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

Gas Phase Spectrum

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Additional Data

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Owner NIST Standard Reference Data Program
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin Sadtler Research Labs Under US-EPA Contract
State gas

This IR spectrum is from the NIST/EPA Gas-Phase Infrared Database .


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 J.A.GILPIN DOW CHEM. CO., MIDLAND, MICHIGAN, USA
NIST MS number 143

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UV/Visible 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: Victor Talrose, Eugeny B. Stern, Antonina A. Goncharova, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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Additional Data

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Source Nielsen and Schellman, 1967
Owner INEP CP RAS, NIST OSRD
Collection (C) 2007 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS
Source reference RAS UV No. 3944
Instrument n.i.g.
Melting point -3.8
Boiling point 199.5

Gas Chromatography

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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

Kovats' RI, non-polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
PackedSE-30180.793.Krawczyk and Piotrowski, 1989N2, Chromosorb W AW; Column length: 1. m

Normal alkane RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryOV-101722.Zenkevich, 200525. m/0.20 mm/0.10 μm, N2/He, 6. K/min; Tstart: 50. C; Tend: 250. C

Normal alkane RI, polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryDB-Wax1615.Peng, Yang, et al., 1991Program: not specified

References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, NIST Free Links, NIST Subscription Links, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Kulikov, Krestov, et al., 1989
Kulikov, M.V.; Krestov, A.G.; Safonova, L.P.; Kolker, A.M., Excess thermodynamic functions in the systems water + N-methylformamide, and water + N,N-dimethylformamide, Sbornik Nauch Trud., Termodin. rast. neelect., Ivanovo, Inst. nevod. rast., 1989, Akad. [all data]

de Visser and Somsen, 1979
de Visser, C.; Somsen, G., Thermochemical behavior of mixtures of N,N-dimethylformamide with dimethylsulfoxide, acetonitrile, and N-methylformamide: volumes and heat capacities, J. Solution Chem., 1979, 8, 593-600. [all data]

Bonner and Cerutti, 1976
Bonner, O.D.; Cerutti, P.J., The partial molar heat capacities of some solutes in water and deuterium oxide, J. Chem. Thermodynam., 1976, 8, 105-111. [all data]

Skold, Suurkuusk, et al., 1976
Skold, R.; Suurkuusk, J.; Wadso, I., Thermochemistry of solutions of biochemical model compounds. 7. Aqueous solutions of some amides, t-butanol, and pentanol, J. Chem. Thermodynam., 1976, 8, 1075-1080. [all data]

de Visser and Somsen, 1974
de Visser, C.; Somsen, G., Molar heat capacities of binary mixtures of water and some amides at 298.15 K, Z. Physik. Chem. [N.F.], 1974, 92, 159-162. [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]

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]

Ushakov, Sedov, et al., 1996
Ushakov, V.S.; Sedov, S.M.; Knyazev, B.A.; Kuchkaev, B.I., Thermodynamic properties of N-methylformamide, Zh. Fiz. Khim., 1996, 70, 9, 1573. [all data]

Barone, Castronuovo, et al., 1985
Barone, G.; Castronuovo, G.; Della Gatta, G.; Elia, V.; Iannone, A., Enthalpies of vaporization of seven alkylamides, Fluid Phase Equilibria, 1985, 21, 1-2, 157-164, https://doi.org/10.1016/0378-3812(85)90066-4 . [all data]

Varushchenko, 1986
Varushchenko, R.M., Zh. Fiz. Khim., 1986, 60, 291. [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]

Heinrich, Ilavsky, et al., 1961
Heinrich, J.; Ilavsky, J.; Surovy, J., Chem. Zvesti, 1961, 15, 414. [all data]

Dykyj, 1970
Dykyj, J., Petrochemica, 1970, 10, 2, 51. [all data]

Heinrich, Ilavsky, et al., 1961, 2
Heinrich, J.; Ilavsky, J.; Surovy, J., Dependence of the Vapor Pressure of N-Methylformamide from the Temperature Equilibrium Liquid-Vapor for the System N-Methyl-Formamide-Water, Chem. Zvesti, 1961, 15, 6, 414-418. [all data]

Ahlers, Lohmann, et al., 1999
Ahlers, Jens; Lohmann, Jürgen; Gmehling, Jürgen, Binary Solid-Liquid Equilibria of Organic Systems Containing Different Amides and Sulfolane, J. Chem. Eng. Data, 1999, 44, 4, 727-730, https://doi.org/10.1021/je9802975 . [all data]

Taft, 1987
Taft, R.W., The Nature and Analysis of Substitutent Electronic Effects, Personal communication. See also Prog. Phys. Org. Chem., 1987, 16, 1. [all data]

Meot-Ner (Mautner), 1988
Meot-Ner (Mautner), M., Models for Strong Interactions in Proteins and Enzymes. 2. Interactions of Ions with the Peptide Link and Imidazole, J. Am. Chem. Soc., 1988, 110, 10, 3075, https://doi.org/10.1021/ja00218a014 . [all data]

Herreros, Gal, et al., 1999
Herreros, M.; Gal, J.-F.; Maria, P.-C.; Decouzon, M., Gas-Phase Basicity of Simple Amides Toward Proton and Lithium Cation: An Experimental and Theoretical Study, Eur. J. Mass Spectrom., 1999, 5, 1, 259, https://doi.org/10.1255/ejms.282 . [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]

Desfrancois, Periquet, et al., 1999
Desfrancois, C.; Periquet, V.; Carles, S.; Schermann, J.P.; Smith, D.M.A.; Adamowicz, L., Experimental and ab initio theoretical studies of electron binding to formamide, N-methylformamide, and N,N-dimethylformamide., J. Chem. Phys., 1999, 110, 9, 4309-4314, https://doi.org/10.1063/1.478353 . [all data]

Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S., Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]

Baldwin, Loudon, et al., 1977
Baldwin, M.A.; Loudon, A.G.; Webb, K.S.; Cardnell, P.C., Charge location and fragmentation under electron impact. V-The ionization potentials of (methylated) phosphoramides, guanidines, formamides, acetamides, ureas and thioureas, Org. Mass Spectrom., 1977, 12, 279. [all data]

Brundle, Turner, et al., 1969
Brundle, C.R.; Turner, D.W.; Robin, M.B.; Basch, H., Photoelectron spectroscopy of simple amides and carboxylic acids, Chem. Phys. Lett., 1969, 3, 292. [all data]

Loudon and Webb, 1977
Loudon, A.G.; Webb, K.S., The nature of the [C2H6N]+ and [CH4N]+ ions formed by electron impact on methylated formamides, acetamides, ureas, thioureas and hexamethylphosphoramide, Org. Mass Spectrom., 1977, 12, 283. [all data]

Nielsen and Schellman, 1967
Nielsen, E.B.; Schellman, J.A., The absorption spectra of simple amides and peptides, J. Phys. Chem., 1967, 71, 7, 2297-2304. [all data]

Krawczyk and Piotrowski, 1989
Krawczyk, W.; Piotrowski, G.T., Relationships Between Structure and Retention Index for N-Substituted Amides of Aliphatic Acids on a Non-Polar Column, J. Chromatogr., 1989, 463, 297-304, https://doi.org/10.1016/S0021-9673(01)84484-8 . [all data]

Zenkevich, 2005
Zenkevich, I.G., Experimentally measured retention indices., 2005. [all data]

Peng, Yang, et al., 1991
Peng, C.T.; Yang, Z.C.; Ding, S.F., Prediction of rentention idexes. II. Structure-retention index relationship on polar columns, J. Chromatogr., 1991, 586, 1, 85-112, https://doi.org/10.1016/0021-9673(91)80028-F . [all data]


Notes

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, NIST Free Links, NIST Subscription Links, References