Triethylenediamine
- Formula: C6H12N2
- Molecular weight: 112.1729
- IUPAC Standard InChIKey: IMNIMPAHZVJRPE-UHFFFAOYSA-N
- CAS Registry Number: 280-57-9
- 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: 1,4-Diazabicyclo[2.2.2]octane; Bicyclo[2.2.2]-1,4-diazaoctane; D 33LV; Dabco; Dabco 33LV; N,N'-endo-Ethylenepiperazine; 1,4-Diaza[2.2.2]bicyclooctane; 1,4-Ethylenepiperazine; Dabco R-8020; Dabco S-25; Dabco crystalline; TEDA-L33; Tegoamin 33; Texacat TD-33; Bicyclo[2.2.2]octane, 1,4-diaza-; Dabco Crystal; NSC 56362; TED; TEDA; Texacat TD 100; 1,4-diazabicyclooctane; 1,4 Diazabicyclo (2,2,2)octane
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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:
LL - Sharon G. Lias and Joel F. Liebman
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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 7.321 ± 0.001 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 230.3 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 223.4 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
7.321155 ± 0.000005 | S | Boogaarts, Holleman, et al., 1996 | LL |
7.197 ± 0.001 | S | Smith, Hager, et al., 1984 | LBLHLM |
7.20 | PI | Parker and El-Sayed, 1979 | LLK |
7.52 ± 0.02 | PE | Aue, Webb, et al., 1976 | Vertical value; LLK |
7.61 | PE | Nelsen and Buschek, 1974 | Vertical value; LLK |
7.609 | PE | Nelsen and Buschek, 1974, 2 | Vertical value; LLK |
7.70 | PE | Hamada, Hirakawa, et al., 1973 | Vertical value; LLK |
7.52 | PE | Heilbronner and Muszkat, 1970 | Vertical value; RDSH |
7.52 | PE | Bischof, Hashmall, et al., 1969 | Vertical value; RDSH |
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]
Boogaarts, Holleman, et al., 1996
Boogaarts, M.G.H.; Holleman, I.; Jongma, R.T.; Parker, D.H.; Meijer, G.; Even, U.,
High Rydberg states of DABCO: Spectroscopy, ionization potential, and comparison with mass analyzed threshold ionization,
J. Chem. Phys., 1996, 104, 4357. [all data]
Smith, Hager, et al., 1984
Smith, M.A.; Hager, J.W.; Wallace, S.C.,
Two-color laser photoionization spectroscopy in a collisionless free-jet expansion: Spectroscopy and excited-state dynamics of diazabicyclooctane,
J. Phys. Chem., 1984, 88, 2250. [all data]
Parker and El-Sayed, 1979
Parker, D.H.; El-Sayed, M.A.,
Determination of excited state lifetimes and ionization potentials by dual beam visible lasars,
Chem. Phys., 1979, 42, 379. [all data]
Aue, Webb, et al., 1976
Aue, D.H.; Webb, H.M.; Bowers, M.T.,
Quantitative proton affinities, ionization potentials, and hydrogen affinities of alkylamines,
J. Am. Chem. Soc., 1976, 98, 311. [all data]
Nelsen and Buschek, 1974
Nelsen, S.F.; Buschek, J.M.,
Photoelectron spectra of some cyclic di- and polyamines. Lone pair-lone pair interaction in 1,3- and 1,4-diamines,
J. Am. Chem. Soc., 1974, 96, 7930. [all data]
Nelsen and Buschek, 1974, 2
Nelsen, S.F.; Buschek, J.M.,
Charge delocalization in saturated systems. The radical cation of 1,3,6,8-tetraazatricyclo[4.4.1.13,8]dodecane,
J. Am. Chem. Soc., 1974, 96, 6424. [all data]
Hamada, Hirakawa, et al., 1973
Hamada, Y.; Hirakawa, A.Y.; Tsuboi, M.; Ogata, H.,
Interaction between lone pair electrons on the nitrogen atoms in 1,5-diazabicyclo[3.2.1]octane,
Bull. Chem. Soc. Jpn., 1973, 46, 2244. [all data]
Heilbronner and Muszkat, 1970
Heilbronner, E.; Muszkat, K.A.,
On the relative importance of through-space vs. through-bond interaction between the lone pairs in 1,4-diazabicyclo[2.2.2.]octane,
J. Am. Chem. Soc., 1970, 92, 3818. [all data]
Bischof, Hashmall, et al., 1969
Bischof, P.; Hashmall, J.A.; Heilbronner, E.; Hornung, V.,
Nitrogen lone pair interaction in 1,4-diaza-bicyclo[2.2.2]octane (DABCO),
Tetrahedron Lett., 1969, 4025. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
IE (evaluated) Recommended ionization energy - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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