Small Molecule Activation by Two-Coordinate Acyclic Silylenes,European Journal of Inorganic Chemistry

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Small Molecule Activation by Two-Coordinate Acyclic Silylenes
European Journal of Inorganic Chemistry ( IF 2.2 ) Pub Date : 2020-07-28 , DOI: 10.1002/ejic.202000479
Shiori Fujimori ₁ , Shigeyoshi Inoue ₁

Affiliation

In recent decades, the chemistry of stable silylenes (R2Si:) has evolved significantly. The first major development in this chemistry was the isolation of a silicocene which is stabilized by the Cp* (Cp* = η5‐C5Me5) ligand in 1986 and subsequently the isolation of a first N‐heterocyclic silylene (NHSi:) in 1994. Since the groundbreaking discoveries, a large number of isolable cyclic silylenes and higher coordinated silylenes, i.e. Si(II) compounds with coordination number greater than two, have been prepared and the properties investigated. However, the first isolable two‐coordinate acyclic silylene was finally reported in 2012. The achievements in the synthesis of acyclic silylenes have allowed for the utilization of silylenes in small molecule activation including inert H2 activation, a process previously exclusive to transition metals. This minireview highlights the developments in silylene chemistry, specifically two‐coordinate acyclic silylenes, including experimental and computational studies which investigate the extremely high reactivity of the acyclic silylenes.

中文翻译：

二配位无环硅烯的小分子活化

近几十年来，稳定的硅烯 (R2Si:) 的化学性质发生了显着的变化。该化学的第一个重大进展是 1986 年分离出由 Cp* (Cp* = η5-C5Me5) 配体稳定的硅茂，随后于 1994 年分离出第一个 N-杂环亚硅基 (NHSi:)。这一突破性的发现，制备了大量可分离的环状硅烯和更高配位的硅烯，即配位数大于二的Si(II)化合物，并对其性能进行了研究。然而，第一个可分离的双配位无环硅烯终于在 2012 年被报道。无环硅烯合成的成就使得硅烯可以用于小分子活化，包括惰性 H2 活化，这一过程以前仅限于过渡金属。这篇小综述重点介绍了硅烯化学的发展，特别是双配位无环硅烯，包括研究无环硅烯极高反应性的实验和计算研究。

更新日期：2020-07-28

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