triethylstibine

Triethylstibine is an organometallic compound with the chemical formula Sb(C₂H₅)₃. It is a colorless liquid with a strong, unpleasant odor. It is flammable and can ignite spontaneously in air. Triethylstibine is soluble in organic solvents but reacts with water and protic solvents.

The compound can be synthesized through various methods, often involving the reaction of antimony halides with organometallic reagents like ethylmagnesium bromide or triethylaluminum. For example, the reaction of antimony trichloride with ethylmagnesium bromide yields triethylstibine.

Triethylstibine finds limited industrial application due to its toxicity and pyrophoric nature. However, it has been explored in research settings. It can serve as a precursor in the synthesis of other organoantimony compounds or as a dopant in semiconductor manufacturing, particularly for the deposition of antimony-containing thin films through techniques like metalorganic chemical vapor deposition (MOCVD). Its reactivity and volatility make it suitable for such gas-phase processes.

Due to its hazardous properties, including flammability and toxicity, triethylstibine must be handled with extreme care in well-ventilated areas, often under an inert atmosphere, and with appropriate personal protective equipment. Disposal of this compound requires specialized procedures to mitigate environmental risks.