Methylstibine

Methylstibine is an organometallic compound with the chemical formula CH3SbH2. It is the simplest stibine derivative containing a methyl group. Methylstibine is a colorless gas at room temperature and pressure. It is a highly toxic and pyrophoric substance, meaning it can ignite spontaneously in air. Its instability and reactivity make it difficult to handle and store.

The synthesis of methylstibine can be achieved through various methods, often involving the reaction of antimony halides with methylating agents. For instance, it can be prepared by the reaction of antimony trichloride with methyl Grignard reagents or methyl lithium. The compound is also known to be a precursor to other organoantimony compounds.

Due to its toxicity and pyrophoric nature, methylstibine has limited practical applications. Its primary use is in laboratory research settings for the synthesis of more complex organoantimony compounds or as a source of antimony in certain chemical reactions. Its hazardous properties necessitate specialized handling procedures and equipment to ensure safety. The compound is not commercially produced on a large scale.