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
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Gas phase thermochemistry 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 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. |
Condensed phase thermochemistry 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:
MS - José A. Martinho Simões
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°liquid | -44.8 ± 1.2 | 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.; MS |
| ΔfH°liquid | -41.1 ± 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.; MS |
| ΔfH°liquid | -56.62 ± 0.74 | 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.; MS |
| ΔfH°liquid | -51.9 ± 2.1 | 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; MS |
| ΔfH°liquid | -41.4 ± 1.1 | kcal/mol | CC-SB | Tel'noi and Rabinovich, 1980 | Value corrected based on a set of ancillary data by J.A. 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.; MS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°liquid | -1220.3 ± 0.69 | kcal/mol | CC-SB | Pawlenko, 1967 | Please also see Pedley and Rylance, 1977 and Cox and Pilcher, 1970.; MS |
| ΔcH°liquid | -1225.0 ± 2.1 | kcal/mol | CC-SB | Shaulov, Shmyreva, et al., 1965 | Please also see Cox and Pilcher, 1970.; MS |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid | 73.61 | cal/mol*K | N/A | Rabinovich, Nistratov, et al., 1989 | DH |
| S°liquid | 73.57 | cal/mol*K | N/A | Sheiman, Nistratov, et al., 1984 | DH |
Constant pressure heat capacity of liquid
| Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 57.12 | 298.15 | Rabinovich, Nistratov, et al., 1989 | T = 5 to 313 K.; DH |
| 57.12 | 298.15 | Sheiman, Nistratov, et al., 1984 | T = 5 to 300 K.; DH |
Reaction thermochemistry 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 by: José A. Martinho Simões
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
C12H30Al2 (g) = 2 (g)
By formula: C12H30Al2 (g) = 2C6H15Al (g)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 18.2 ± 0.31 | kcal/mol | N/A | Smith, 1972 | The values were derived from the thermochemistry of the equilibrium in the liquid phase and from vapor pressure data Smith, 1972. |
3 (g) +
(l) = AlH3O3 (amorphous) + 3
(g)
By formula: 3H2O (g) + C6H15Al (l) = AlH3O3 (amorphous) + 3C2H6 (g)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -154.7 ± 1.5 | kcal/mol | RSC | Fowell, 1961 | Please also see Cox and Pilcher, 1970. 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. |
C12H30Al2 (l) = 2 (l)
By formula: C12H30Al2 (l) = 2C6H15Al (l)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 16.9 ± 0.24 | kcal/mol | EqS | Smith, 1967 |
AlI3 (cr) + 2 (l) = 3C4H10AlI (l)
By formula: AlI3 (cr) + 2C6H15Al (l) = 3C4H10AlI (l)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -17.5 ± 0.33 | kcal/mol | RSC | Smith, 1974 | Please also see Pedley and Rylance, 1977. |
AlBr3 (cr) + 2 (l) = 3C4H10AlBr (l)
By formula: AlBr3 (cr) + 2C6H15Al (l) = 3C4H10AlBr (l)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -21.8 ± 0.43 | kcal/mol | RSC | Smith, 1974 | Please also see Pedley and Rylance, 1977. |
AlCl3 (cr) + 2 (l) = 3
(l)
By formula: AlCl3 (cr) + 2C6H15Al (l) = 3C4H10AlCl (l)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -16.0 ± 0.31 | kcal/mol | RSC | Smith, 1974 | Please also see Pedley and Rylance, 1977. |
C2H5AlI2 (l) + (l) = 2C4H10AlI (l)
By formula: C2H5AlI2 (l) + C6H15Al (l) = 2C4H10AlI (l)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -8.7 ± 0.2 | kcal/mol | RSC | Smith, 1974 | Please also see Pedley and Rylance, 1977. |
C2H5AlBr2 (l) + (l) = 2C4H10AlBr (l)
By formula: C2H5AlBr2 (l) + C6H15Al (l) = 2C4H10AlBr (l)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -9.5 ± 0.2 | kcal/mol | RSC | Smith, 1974 | Please also see Pedley and Rylance, 1977. |
(l) +
(l) = 2
(l)
By formula: C2H5AlCl2 (l) + C6H15Al (l) = 2C4H10AlCl (l)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -9.4 ± 0.2 | kcal/mol | RSC | Smith, 1974 | Please also see Pedley and Rylance, 1977. |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry 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]
Pawlenko, 1967
Pawlenko, S.,
Chem. Ber., 1967, 100, 3591. [all data]
Pedley and Rylance, 1977
Pedley, J.B.; Rylance, J.,
Computer Analysed Thermochemical Data: Organic and Organometallic Compounds, University of Sussex, Brigton, 1977. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds
in Academic Press, New York, 1970. [all data]
Shaulov, Shmyreva, et al., 1965
Shaulov, Yu.Kh.; Shmyreva, G.O.; Tubyanskaya, V.S.,
Russ. J. Phys. Chem., 1965, 39, 51. [all data]
Rabinovich, Nistratov, et al., 1989
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]
Smith, 1972
Smith, M.B.,
J. Organometal. Chem., 1972, 46, 31. [all data]
Fowell, 1961
Fowell, P.A.,
Ph. D. Thesis, University of Manchester, 1961. [all data]
Smith, 1974
Smith, M.B.,
J. Organometal. Chem., 1974, 76, 171. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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