Methanediamine, N,N,N',N'-tetramethyl-

Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.


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
Tboil358.2KN/AAldrich Chemical Company Inc., 1990BS

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Reference Comment
7.72310.Aylett and Peterson, 1965Based 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

2Dimethylamine + Formaldehyde = Methanediamine, N,N,N',N'-tetramethyl- + Water

By formula: 2C2H7N + CH2O = C5H14N2 + H2O

Quantity Value Units Method Reference Comment
Δr-45.6 ± 0.6kcal/molCmRogers and Rapiejko, 1974gas phase

Gas phase ion energetics data

Go To: Top, Phase change data, Reaction thermochemistry data, 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

Quantity Value Units Method Reference Comment
IE (evaluated)7.74 ± 0.05eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)227.6kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity219.8kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
7.74 ± 0.03PILoguinov, Takhistov, et al., 1981LLK
7.74 ± 0.05PEAkopyan and Loginov, 1974LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C3H8N+8.43 ± 0.05(CH3)2NPILoguinov, Takhistov, et al., 1981LLK

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