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| Names | |
|---|---|
| IUPAC name
Triethylindium
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| Other names
Indium triethyl, triethylindigane, indiumtriethyl, TEI, TEIn
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.011.905 |
PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| In(CH2CH3)3 | |
| Molar mass | 202.004 g·mol−1 |
| Appearance | Colorless liquid[1] |
| Density | 1.384 g/cm3[1] |
| Melting point | −32 °C (−26 °F; 241 K)[1] |
| Boiling point | 144 °C (291 °F; 417 K) |
| Reacts violently[1] | |
Refractive index (nD)
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1.5380 |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards
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Causes severe skin burns and serious eye damage. Spontaneously ignites on air. |
| GHS labelling: | |
 
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| Danger | |
| H250, H314 | |
| P210, P222, P231, P233, P260, P264, P280, P301+P330+P331, P302+P335+P334, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P370+P378, P405, P501 | |
| Related compounds | |
Related compounds
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Triethylindium is an organometallic compound. Its chemical formula is In(CH2CH3)3.[2][3]
Synthesis
[edit]This compound can be obtained by reacting indium(III) bromide with a diethyl ether solution of ethylmagnesium bromide:
- InBr3 + 3 CH3CH2MgBr → In(CH2CH3)3 + 3 MgBr2
Other routes are also known.[4]
Properties
[edit]Indium triethyl is a colorless, toxic, oxidation and hydrolysis-sensitive liquid. It is a monomer in the gaseous and dissolved state. The compound reacts with halomethanes to form diethyl indium halides.[5]
Triethylindium reacts violently with water:
- In(CH2CH3)3 + H2O → In(CH2CH3)2OH + C2H6↑
Applications
[edit]Indium triethyl is used to prepare indium phosphide layers for microelectronics.[6]
See also
[edit]References
[edit]- ^ a b c d "Triethylindium | AMERICAN ELEMENTS ®". Archived from the original on 2018-11-26. Retrieved 2025-08-18.
- ^ "INDIUM TRIETHYL". chemicalbook.com. Retrieved 7 June 2017.
- ^ "Substance Name: Indium, triethyl". chem.nlm.nih.gov. Retrieved 7 June 2017.
- ^ Foster, Douglas F.; Cole-Hamilton, David J. (1997). "Electronic Grade Alkyls of Group 12 and 13 Elements". Inorganic Syntheses. Vol. 31. p. 29 66. doi:10.1002/9780470132623.ch7. ISBN 978-0-471-15288-0.
- ^ Maeda, Takayoshi; Tada, Hisashi; Yasuda, Kiyoshi; Okawara, Rokuro (11 September 1970). "Reactions of triethylindium with halomethanes: preparations and properties of diethylindium halides". Journal of Organometallic Chemistry. 27 (1): 13–18. doi:10.1016/S0022-328X(00)82987-3.
- ^ Sakaki, H.; Woo, J.C.; Yokoyama, N.; Harayama, Y. (1999). Compound Semiconductors: Proceedings of the Twenty-Fifth International Symposium on Compound Semiconductors held in Nara, Japan, 12-16 October 1998. CRC Press. p. 529. ISBN 978-0-7503-0611-9.