Triethylenediamine

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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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil447.15KN/AFarkas, Mills, et al., 1959Uncertainty assigned by TRC = 2. K; TRC
Quantity Value Units Method Reference Comment
Tfus431.15KN/AFarkas, Mills, et al., 1959Uncertainty assigned by TRC = 2. K; TRC
Quantity Value Units Method Reference Comment
Ttriple432.99KN/ATrowbridge and Westrum, 1963Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC
Quantity Value Units Method Reference Comment
Δsub14.9kcal/molN/ARapport, Westrum, et al., 1971DRB
Δsub14.8kcal/molVWada, Kishida, et al., 1960ALS

Enthalpy of sublimation

ΔsubH (kcal/mol) Temperature (K) Reference Comment
13.0348.Bondi, 1963Based on data from 323. to 373. K.; AC
14.8 ± 0.79338.Wada, Kishida, et al., 1960, 2Based on data from 324. to 351. K. See also Cox and Pilcher, 1970.; AC
12.5 ± 0.79361.Wada, Kishida, et al., 1960, 2Based on data from 353. to 369. K. See also Cox and Pilcher, 1970.; AC

Enthalpy of fusion

ΔfusH (kcal/mol) Temperature (K) Reference Comment
1.78433.Domalski and Hearing, 1996AC

Enthalpy of phase transition

ΔHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
2.5239351.08crystaline, IIcrystaline, ITrowbridge and Westrum, 1963, 2Transformation to plastic crystalline phase.; DH
1.776432.99crystaline, IliquidTrowbridge and Westrum, 1963, 2DH

Entropy of phase transition

ΔStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
7.189351.08crystaline, IIcrystaline, ITrowbridge and Westrum, 1963, 2Transformation; DH
4.101432.99crystaline, IliquidTrowbridge and Westrum, 1963, 2DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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:
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 ± 0.001eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)230.3kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity223.4kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
7.321155 ± 0.000005SBoogaarts, Holleman, et al., 1996LL
7.197 ± 0.001SSmith, Hager, et al., 1984LBLHLM
7.20PIParker and El-Sayed, 1979LLK
7.52 ± 0.02PEAue, Webb, et al., 1976Vertical value; LLK
7.61PENelsen and Buschek, 1974Vertical value; LLK
7.609PENelsen and Buschek, 1974, 2Vertical value; LLK
7.70PEHamada, Hirakawa, et al., 1973Vertical value; LLK
7.52PEHeilbronner and Muszkat, 1970Vertical value; RDSH
7.52PEBischof, Hashmall, et al., 1969Vertical value; RDSH

References

Go To: Top, Phase change 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.

Farkas, Mills, et al., 1959
Farkas, A.; Mills, G.A.; Erner, W.E.; Maerker, J.B., Triethylenediamine. Physical, Chemical, and Catalytic Properties, J. Chem. Eng. Data, 1959, 4, 334. [all data]

Trowbridge and Westrum, 1963
Trowbridge, J.C.; Westrum, E.F., Heat capacities and thermodynamic properties of globular molecules. VII. Transition and fusion of triethylenediamine, J. Phys. Chem., 1963, 67, 2381-5. [all data]

Rapport, Westrum, et al., 1971
Rapport, N.J.; Westrum, E.F., Jr.; Andrews, J.T.S., Enthalpies of formation for globular molecules. III. Succinonitrile and triethylenediamine, J. Am. Chem. Soc., 1971, 93, 4363-4365. [all data]

Wada, Kishida, et al., 1960
Wada, T.; Kishida, E.; Tomhe, Y.; Suga, H.; Seki, S.; Nitta, I., Crystal structure and thermodynamical investigations of triethylenediamine, C6H12N2, Bull. Chem. Soc. Jpn., 1960, 33, 1317. [all data]

Bondi, 1963
Bondi, A., Heat of Siblimation of Molecular Crystals: A Catalog of Molecular Structure Increments., J. Chem. Eng. Data, 1963, 8, 3, 371-381, https://doi.org/10.1021/je60018a027 . [all data]

Wada, Kishida, et al., 1960, 2
Wada, Tadayoshi; Kishida, Etsuko; Tomiie, Yujiro; Suga, Hiroshi; Seki, Syûzô; Nitta, Isamu, Crystal Structure and Thermodynamical Investigations of Triethylenediamine, C6H12N2, Bull. Chem. Soc. Jpn., 1960, 33, 9, 1317-1318, https://doi.org/10.1246/bcsj.33.1317 . [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press Inc., London, 1970, 643. [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Trowbridge and Westrum, 1963, 2
Trowbridge, J.C.; Westrum, E.F., Jr., Heat capacities and thermodynamic properties of globular molecules. VII. Transition and fusion of triethylenediamine, J. Phys. Chem., 1963, 67, 2381-2385. [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]

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

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