Methyl-Lithium
- Số CAS
- 917-54-4
- Khối lượng phân tử
- 21.98
- Công thức phân tử / ký hiệu hóa học
- CH3Li
Mô tả
Two structures have been verified by single crystal X-ray crystallography as well as by 6Li, 7Li, and 13C NMR spectroscopy. The tetrameric cluster consists of a distorted cubane, with carbon and lithium atoms at alternate corners. The Li---Li distances are 2.68 ?, almost identical with the Li-Li bond in gaseous dilithium. The C-Li distances are 2.31 ?. Carbon is bonded to three hydrogen atoms and three Li atoms. The nonvolatility of (MeLi)4 and its insolubility in alkanes results from the fact that the clusters interact via further inter-cluster agostic interactions. In contrast the bulkier cluster (tertiary-butylLi)4, where intercluster interactions are precluded by steric effects, is volatile as well as soluble in alkanes.
Keyword：Organometallic compounds