Abstract
In contrast to hydrosilanes, the chemistry of hydrosilylenes, also known as silicon(II) hydrides is scarcely studied. In fact, the parent silylene, silicon(II) dihydride [H2Si:], is still considered as an elusive species and some kind of stabilization is required for the isolation. The silicon(II) hydrides can facilitate versatile reactivities associated with the lone pair as well as the terminal Si-H bond. Most of the silicon(II) hydrides can be isolated by utilizing donor (Lewis base) and/or acceptor (Lewis acid) stabilization. Many recent publications clearly show their unique reactivities, which also involve the potential for transition metal-free catalytic hydrosilylation. In this chapter, we focus on describing recent advances in the silicon(II) hydrides. The synthesis, structure, and reactivity of donor–acceptor-stabilized silicon(II) hydrides with β-diketiminato, amidinate, and N-heterocyclic carbene as donor ligands are summarized. Subsequently, the synthesis and the reactivity of acceptor-free silicon(II) hydrides are discussed. In addition, compounds having a silicon-silicon double bond and hydrogen atom at the silicon(II) center, so-called hydrodisilenes and dihydrodisilenes, are also included.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call