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Triethylindium

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Triethylindium
Triethylindium 200.svg
Names
IUPAC name
Triethylindium
Other names
Indium triethyl, triethylindigane, indiumtriethyl, TEI, TEIn
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.011.905 OOjs UI icon edit-ltr-progressive.svg
PubChem CID
  • InChI=1S/3C2H5.In/c3*1-2;/h3*1H2,2H3;
    Key: OTRPZROOJRIMKW-UHFFFAOYSA-N
  • CC[In](CC)CC
Properties
In(CH2CH3)3
Molar mass 202.004 g·mol−1
AppearanceColorless 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]
1.5380
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
Causes severe skin burns and serious eye damage. Spontaneously ignites on air.
GHS labelling:
GHS-pictogram-flamme.svg GHS-pictogram-acid.svg
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
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Triethylindium is an organometallic compound. Its chemical formula is In(CH2CH3)3. [2] [3]

Contents

Synthesis

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

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

Indium triethyl is used to prepare indium phosphide layers for microelectronics. [6]

See also

References

  1. 1 2 3 4 "Triethylindium | AMERICAN ELEMENTS ®". Archived from the original on 2018-11-26. Retrieved 2025-08-18.
  2. ↑ "INDIUM TRIETHYL". chemicalbook.com. Retrieved 7 June 2017.
  3. ↑ "Substance Name: Indium, triethyl". chem.nlm.nih.gov. Retrieved 7 June 2017.
  4. ↑ 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.
  5. ↑ 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.
  6. ↑ 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.
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