Methanediamine, N,N,N',N'-tetramethyl-
- Formula: C5H14N2
- Molecular weight: 102.1781
- IUPAC Standard InChIKey: VGIVLIHKENZQHQ-UHFFFAOYSA-N
- CAS Registry Number: 51-80-9
- 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: Bis(dimethylamino)methane; Dimethyl[(dimethylamino)methyl]amine; Methylenebis(dimethylamine); N,N,N',N'-Tetramethyldiaminomethane; N,N,N',N'-Tetramethylmethanediamine; N,N,N',N'-Tetramethylmethylenediamine; Tetramethylmethylenediamine; ((CH3)2N)2CH2; Methylenediamine, N,N,N',N'-tetramethyl-; N,N,N',N'-Tetramethyldiaminomethan; NA 9069; NSC 166169
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Phase change data
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, 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
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 358.2 | K | N/A | Aldrich Chemical Company Inc., 1990 | BS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
7.72 | 310. | Aylett and Peterson, 1965 | Based on data from 273. to 348. K.; AC |
Reaction thermochemistry data
Go To: Top, Phase change data, Gas phase ion energetics data, 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: 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
By formula: 2C2H7N + CH2O = C5H14N2 + H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -45.6 ± 0.6 | kcal/mol | Cm | Rogers and Rapiejko, 1974 | gas phase |
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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 7.74 ± 0.05 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 227.6 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 219.8 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
7.74 ± 0.03 | PI | Loguinov, Takhistov, et al., 1981 | LLK |
7.74 ± 0.05 | PE | Akopyan and Loginov, 1974 | LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C3H8N+ | 8.43 ± 0.05 | (CH3)2N | PI | Loguinov, Takhistov, et al., 1981 | LLK |
References
Go To: Top, Phase change data, Reaction thermochemistry data, 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.
Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc.,
Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]
Aylett and Peterson, 1965
Aylett, B.J.; Peterson, L.K.,
747. The relative stabilities of some complexes of dimethyl-amino-silanes and -methanes with Lewis acids,
J. Chem. Soc., 1965, 4043, https://doi.org/10.1039/jr9650004043
. [all data]
Rogers and Rapiejko, 1974
Rogers, F.E.; Rapiejko, R.J.,
Thermochemistry of carbonyl addition reactions. II. Enthalpy of addition of dimethylamine to formaldehyde,
J. Phys. Chem., 1974, 78, 599-603. [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]
Loguinov, Takhistov, et al., 1981
Loguinov, Y.; Takhistov, V.V.; Vatlina, L.P.,
Photoionization studies of substituted trimethylamines,
Org. Mass Spectrom., 1981, 16, 239. [all data]
Akopyan and Loginov, 1974
Akopyan, M.E.; Loginov, Yu.V.,
Photoelectron spectra of trimethylamine derivatives,
Opt. Spectrosc., 1974, 37, 250, In original 442. [all data]
Notes
Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy Tboil Boiling point ΔrH° Enthalpy of reaction at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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