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稀土硅基 ate 配合物：开启选择性操作之门

Rare-Earth-Silyl ate-Complexes Opening a Door to Selective Manipulations.

作者信息

Pöcheim Alexander, Marschner Christoph, Baumgartner Judith

机构信息

Institut für Anorganische Chemie, Technische Universität Graz, Stremayrgasse 9, 8010 Graz, Austria.

出版信息

Inorg Chem. 2021 Jun 7;60(11):8218-8226. doi: 10.1021/acs.inorgchem.1c00904. Epub 2021 May 25.

DOI:10.1021/acs.inorgchem.1c00904
PMID:34033463
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8188526/
Abstract

The reactions of a number of rare-earth (RE) trichlorides and an oligosilanylene diide containing a siloxane unit in the backbone in DME are described. The formed products of the type [(DME)·K][(DME)·RE(Cl){Si(SiMe)SiMe}O] (RE = Y, La, Ce, Pr, Sm, Tb, Dy, and Er) are disilylated dichloro metalate complexes and include the first examples of Si-La and Si-Pr compounds as well as the first structurally characterized example of a Si-Dy complex. A most intriguing aspect of the synthesis of these complexes is that they offer entry into a systematic study of the still largely unexplored field of silyl RE complexes by the possibility of ligand exchange reactions under preservation of the Si-RE interaction. This was demonstrated by the conversion of [(DME)·K][(DME)·RE(Cl){Si(SiMe)SiMe}O] to [(DME)·K][CpY{Si(SiMe)SiMe}O].

摘要

描述了多种稀土（RE）三氯化物与一种主链中含有硅氧烷单元的低聚硅亚烷基二碘化物在二甲醚（DME）中的反应。形成的[(DME)·K][(DME)·RE(Cl){Si(SiMe)SiMe}O]型产物（RE = Y、La、Ce、Pr、Sm、Tb、Dy和Er）是二硅烷基化二氯金属酸盐配合物，包括首例Si-La和Si-Pr化合物以及首例经结构表征的Si-Dy配合物。这些配合物合成中一个最引人关注的方面是，通过在保留Si-RE相互作用的情况下进行配体交换反应，它们为系统研究仍在很大程度上未被探索的硅基稀土配合物领域提供了途径。[(DME)·K][(DME)·RE(Cl){Si(SiMe)SiMe}O]转化为[(DME)·K][CpY{Si(SiMe)SiMe}O]证明了这一点。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e716/8188526/f97dd1e498a2/ic1c00904_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e716/8188526/49dce9aa8242/ic1c00904_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e716/8188526/089d9f7fd3c8/ic1c00904_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e716/8188526/eea08b30b187/ic1c00904_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e716/8188526/f97dd1e498a2/ic1c00904_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e716/8188526/49dce9aa8242/ic1c00904_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e716/8188526/089d9f7fd3c8/ic1c00904_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e716/8188526/eea08b30b187/ic1c00904_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e716/8188526/f97dd1e498a2/ic1c00904_0002.jpg

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