Cyclometallated complexes are well-known and have found many applications. This article provides a short review on the progress made in the synthesis and application to catalysis of cyclometallated half-sandwich Cp*Ir(III) complexes (Cp*: pentamethylcyclopentadienyl) since 2017. Covered in the review are iridacycles featuring conventional C,N chelates and less common metallocene and carbene-derived C,N and C,C ligands. This is followed by an overview of the studies of their applications in catalysis ranging from asymmetric hydrogenation, transfer hydrogenation, hydrosilylation to dehydrogenation.

中文翻译：

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铱环化合物合成及催化应用的新进展

环金属化配合物是众所周知的并且已发现许多应用。本文简要回顾了自 2017 年以来在环金属化半夹心 Cp*Ir(III) 配合物（Cp*：五甲基环戊二烯基）的合成和应用催化方面取得的进展。以及不太常见的茂金属和卡宾衍生的 C,N 和 C,C 配体。随后概述了它们在催化中的应用研究，从不对称氢化、转移氢化、氢化硅烷化到脱氢。