Aluminum, triethyl-
- Formula: C6H15Al
- Molecular weight: 114.1648
- IUPAC Standard InChI: InChI=1S/3C2H5.Al/c3*1-2;/h3*1H2,2H3;
- IUPAC Standard InChIKey: VOITXYVAKOUIBA-UHFFFAOYSA-N
- CAS Registry Number: 97-93-8
- 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: Triethylaluminum; TEA; Triethylaluminium; UN 1102
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Options:
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.
Gas phase thermochemistry data
Go To: Top, Phase change 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: José A. Martinho Simões
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -27.3 ± 1.3 | kcal/mol | Review | Martinho Simões | Selected data. The enthalpy of formation relies on -428.51 ± 0.45 kcal/mol for the enthalpy of formation of Al(acac)3(cr). Liquid triethylaluminum contains a very small molar fraction of monomer at 298 K, ca. 0.1% Smith, 1967, so that the "real" liquid should be described as [Al(Et)3]2. |
| ΔfH°gas | -23.6 ± 1.6 | kcal/mol | Review | Martinho Simões | Liquid triethylaluminum contains a very small molar fraction of monomer at 298 K, ca. 0.1% Smith, 1967, so that the "real" liquid should be described as [Al(Et)3]2. |
| ΔfH°gas | -39.13 ± 0.88 | kcal/mol | Review | Martinho Simões | Liquid triethylaluminum contains a very small molar fraction of monomer at 298 K, ca. 0.1% Smith, 1967, so that the "real" liquid should be described as [Al(Et)3]2. |
| ΔfH°gas | -34.4 ± 2.2 | kcal/mol | Review | Martinho Simões | Liquid triethylaluminum contains a very small molar fraction of monomer at 298 K, ca. 0.1% Smith, 1967, so that the "real" liquid should be described as [Al(Et)3]2 |
| ΔfH°gas | -23.9 ± 1.2 | kcal/mol | Review | Martinho Simões | The enthalpy of formation was quoted from Tel'noi and Rabinovich, 1980 and relies on experimental data in Fic, 1966. Liquid triethylaluminum contains a very small molar fraction of monomer at 298 K, ca. 0.1% Smith, 1967, so that the "real" liquid should be described as [Al(Et)3]2. |
Phase change data
Go To: Top, Gas phase 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 compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
MS - José A. Martinho Simões
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 466.0 | K | N/A | Dibrivnyi, Dolbneva, et al., 1986 | Uncertainty assigned by TRC = 1. K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| Ttriple | 225.00 | K | N/A | Rabinovich, Nistratov, et al., 1989 | Uncertainty assigned by TRC = 0.02 K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔvapH° | 17.5 ± 0.50 | kcal/mol | RSC | Fowell, 1961 | MS |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
| Temperature (K) | A | B | C | Reference | Comment |
|---|---|---|---|---|---|
| 330. to 399. | 7.40823 | 3451.295 | 2.14 | Fic and Dvorak, 1965 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 2.5335 | 225.00 | Rabinovich, Nistratov, et al., 1989, 2 | DH |
| 2.5335 | 225.00 | Sheiman, Nistratov, et al., 1984 | DH |
| 2.53 | 225. | Domalski and Hearing, 1996 | AC |
Entropy of fusion
| ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 11.26 | 225.00 | Rabinovich, Nistratov, et al., 1989, 2 | DH |
| 11.26 | 225.00 | Sheiman, Nistratov, et al., 1984 | DH |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Martinho Simões
Martinho Simões, J.A.,
Private communication (see http://webbook.nist.gov/chemistry/om/). [all data]
Smith, 1967
Smith, M.B.,
J. Phys. Chem., 1967, 71, 364. [all data]
Tel'noi and Rabinovich, 1980
Tel'noi, V.I.; Rabinovich, I.B.,
Russ. Chem. Rev., 1980, 49, 603. [all data]
Fic, 1966
Fic, V.,
Chem. Prum., 1966, 16, 607. [all data]
Dibrivnyi, Dolbneva, et al., 1986
Dibrivnyi, V.N.; Dolbneva, T.N.; Dikii, M.A.,
Saturated vapor pressure and vaporization enthalpies of aromatic peroxides
in Vses. Konf. po Kalorimetrii i Khim. Termodinamike, 11th, Novosibirsk, Nr 2, p 115, 1986. [all data]
Rabinovich, Nistratov, et al., 1989
Rabinovich, I.B.; Nistratov, V.P.; Sheiman, M.S.; Klimov, K.N.; Kamelova, G.P.; Zorin, A.D.,
Specific heat and thermodynamic functions of triethylaluminium,
Zh. Fiz. Khim., 1989, 63, 522-5. [all data]
Fowell, 1961
Fowell, P.A.,
Ph. D. Thesis, University of Manchester, 1961. [all data]
Fic and Dvorak, 1965
Fic, V.; Dvorak, J.,
Organo-Aluminum Compounds. 1. Vapor Pressure of Triethyl Aluminum and Diethyl Aluminium Chloride,
Chem. Prum., 1965, 15, 732-735. [all data]
Rabinovich, Nistratov, et al., 1989, 2
Rabinovich, I.B.; Nistratov, V.P.; Sheiman, M.S.; Klimov, K.N.; Kamelov, G.P.; Zorin, A.D.,
Specific heat and thermodynamic functions of triethylaluminium,
Zhur. Fiz. Khim., 1989, 63, 522-525. [all data]
Sheiman, Nistratov, et al., 1984
Sheiman, M.S.; Nistratov, V.P.; Kamelova, G.P.; Rabinovich, I.B.,
Low-temperature heat capacity of organic compounds of aluminum and zinc, Probl. Kalorim. Khim. Termodin., Dokl. Vses. Konf.,
10th, 1984, 2, 457-459. [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]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Ttriple Triple point temperature ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.