Silylene Transition Metal Complexes

摘要

Major advance in organometallic chemistry in the last 15 years has been achieved in the area of silicometallics chemistry, based on silicon to metal multiple bonding and silicon with low coordination numbers. Research in this area has led to a discovery of fundamentally new classes of compounds, such as silylene, silene, silaimine, disilene or silacarbyne complexes. Many of these systems had been unknown prior to their synthesis, even as reactive intermediates. This paper provides a comprehensive review of the slylene transition metal complexes. The majority of metal-silylene complexes synthesised so far have required donor stabilisation via the addition of a Lewis base. The use of thermally stable bis(amino)silylenes as ligands had led to a synthesis of base-free, stable silylene metal complexes. The chemistry of these compounds is discussed under headings: types of silyelne complexes, methods of their synthesis, structure and properties of transition metal silylene complexes and also their application to catalysis. Despite the fact that the stable silylene transition metal complexes have been known for less than a decade, the chemistry of these compounds has been comprehensively recognised.