Formamide, N,N-dimethyl-
- Formula: C3H7NO
- Molecular weight: 73.0938
- IUPAC Standard InChIKey: ZMXDDKWLCZADIW-UHFFFAOYSA-N
- CAS Registry Number: 68-12-2
- 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: Dimethylformamide; DMF; DMF (amide); DMFA; N-Formyldimethylamine; N,N-Dimethylformamide; HCON(CH3)2; Formyldimethylamine; Dimethylforamide; Dimethylformamid; Dimetilformamide; Dwumetyloformamid; N,N-Dimethylmethanamide; NSC-5356; U-4224; Dimethylamid kyseliny mravenci; Dimetylformamidu; NCI-C60913; UN 2265; DMF (dimethylformamide); N,N-Dimethylformaldehyde
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Gas phase ion energetics data
Go To: Top, 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:
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
View reactions leading to C3H7NO+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 9.13 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 887.5 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 856.6 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Electron affinity determinations
EA (eV) | Reference | Comment |
---|---|---|
0.01362 | Desfrancois, Periquet, et al., 1999 | B |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.45 ± 0.05 | EI | Baldwin, Loudon, et al., 1977 | LLK |
9.14 | PE | Brundle, Turner, et al., 1969 | RDSH |
9.12 ± 0.02 | PI | Watanabe, Nakayama, et al., 1962 | RDSH |
9.14 | PE | Bieri, Asbrink, et al., 1982 | Vertical value; LBLHLM |
9.25 | PE | Henriksen, Isaksson, et al., 1981 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
CHO+ | 14.50 | ? | EI | Loudon and Webb, 1977 | LLK |
CHO+ | 14.3 ± 0.1 | ? | EI | Gowenlock, Jones, et al., 1961 | RDSH |
C2H6N+ | 11.60 | ? | EI | Loudon and Webb, 1977 | LLK |
C2H6N+ | 11.6 ± 0.1 | ? | EI | Gowenlock, Jones, et al., 1961 | RDSH |
C3H6NO+ | 11.35 | ? | EI | Loudon and Webb, 1977 | LLK |
De-protonation reactions
C3H6NO- + =
By formula: C3H6NO- + H+ = C3H7NO
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1670. ± 17. | kJ/mol | G+TS | DePuy, Grabowski, et al., 1985 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1640. ± 17. | kJ/mol | IMRB | DePuy, Grabowski, et al., 1985 | gas phase; B |
References
Go To: Top, Gas phase ion energetics data, 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]
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]
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]
Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J.,
Ionization potentials of some molecules,
J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]
Bieri, Asbrink, et al., 1982
Bieri, G.; Asbrink, L.; Von Niessen, W.,
30.4-nm He(II) photoelectron spectra of organic molecules,
J. Electron Spectrosc. Relat. Phenom., 1982, 27, 129. [all data]
Henriksen, Isaksson, et al., 1981
Henriksen, L.; Isaksson, R.; Liljefors, T.; Sandstrom, J.,
Ultraviolet absorption and photoelectron spectra of some cyclic and open-chain mono- and dithiooxamides,
Acta Chem. Scand., Ser. B, 1981, 35, 489. [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]
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]
DePuy, Grabowski, et al., 1985
DePuy, C.H.; Grabowski, J.J.; Bierbaum, V.M.; Ingemann, S.; Nibbering, N.M.M.,
Gas-phase reactions of anions with methyl formate and N,N-dimethylformamide,
J. Am. Chem. Soc., 1985, 107, 1093. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy EA Electron affinity IE (evaluated) Recommended ionization energy 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
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