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四种以金镓环作为金簇化学新结构单元的双金属金镓簇合物的合成与表征

Synthesis and characterisation of four bimetallic gold-gallium clusters with Au-Ga rings as a new structural motif in gold cluster chemistry.

作者信息

Strienz Markus, Fetzer Florian, Schnepf Andreas

机构信息

Chemistry Department, Universität Tübingen Auf der Morgenstelle 18 D-72076 Germany

出版信息

Chem Sci. 2023 Apr 3;14(17):4571-4579. doi: 10.1039/d2sc06908c. eCollection 2023 May 3.

DOI:10.1039/d2sc06908c
PMID:37152249
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10155905/
Abstract

Using the newly introduced reducing agent in gold cluster chemistry GaCp, four new bimetallic gold-gallium cluster compounds were synthesised, stabilised by alkylphosphine ligands. The gold core of Au(GaCl)(PEt), Au(GaCl)(P Pr) and Au(GaCl)(GaCl)(P Pr Bu) is composed of two, three and four Au tetrahedra, linked in different ways. This arrangement gives the last-mentioned cluster the shape of a five-pointed star. A fourth synthesised metalloid gold cluster Au(GaCl)(P Pr) consists of a voluminous gold core encircled by a gold-gallium chain. These gold-gallium chains are present in all four cluster compounds and are similar to the well-known gold-sulphur staple motifs in thiol-stabilised gold cluster compounds.

摘要

在金簇化学中使用新引入的还原剂GaCp,合成了四种新的双金属金-镓簇化合物,它们由烷基膦配体稳定。Au(GaCl)(PEt)、Au(GaCl)(P Pr)和Au(GaCl)(GaCl)(P Pr Bu)的金核由两个、三个和四个金四面体组成,以不同方式相连。这种排列使最后提到的簇具有五角星的形状。第四个合成的类金属金簇Au(GaCl)(P Pr)由一个巨大的金核和一个金-镓链环绕组成。这些金-镓链存在于所有四种簇化合物中,并且类似于硫醇稳定的金簇化合物中著名的金-硫主链结构。

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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d85f/10155905/1287da54a9e4/d2sc06908c-f12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d85f/10155905/3d0e2982709a/d2sc06908c-f1.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d85f/10155905/daa711d4fd56/d2sc06908c-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d85f/10155905/e56b34cf18ff/d2sc06908c-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d85f/10155905/7ee0f26f6878/d2sc06908c-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d85f/10155905/12f6926c54e6/d2sc06908c-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d85f/10155905/ac478642b4fc/d2sc06908c-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d85f/10155905/8dae57633f61/d2sc06908c-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d85f/10155905/5877a31c8551/d2sc06908c-f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d85f/10155905/eab04c61e997/d2sc06908c-f11.jpg
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