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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Structural modulation of silver complexes and their distinctive catalytic properties
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Structural modulation of silver complexes and their distinctive catalytic properties

机译：银配合物的结构调节及其独特的催化性能

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摘要

A family of silver(I) complexes, [Ag_2(L)_2(OOCCF_3)_2] (1), [Ag(L)_(0.5)(OOCCF_3)] (2), [Ag(L)_2](OOCCF_3)(H_2O)_2 (3), was obtained by reactions of 4,4'-di(2-oxazolinyl)biphenyl (L) and AgOOCCF3 in different reaction media. Compound 1 has a 1D chain structure with alternative connections between the Ag(I) and L ligand. When the crystal nucleation inductor, pyrazine, was added into the reaction system, complex 2 was isolated with no pyrazine observed in its structure. In 2, the 1D inorganic chains formed by Ag(I) cations and OOCCF_3~- anions were connected by the L ligand to produce a 2D network. When a different inductor, imidazole, was added into the reaction system, 3 with (4,4) topology was synthesized, and again no imidazole was found in 3. When 1-3 were used as catalysts for cycloaddition reactions between imino esters and methyl acrylate, 3 affords the highest yield, in which the particular size of the channels in 3 led to its selective catalytic performance.
机译：一族银（I）配合物[Ag_2（L）_2（OOCCF_3）_2]（1），[Ag（L）_（0.5）（OOCCF_3）]（2），[Ag（L）_2]（OOCCF_3 ）（H_2O）_2（3）是通过4,4'-二（2-恶唑啉基）联苯（L）与AgOOCCF3在不同的反应介质中反应制得的。化合物1具有一维链结构，在Ag（I）和L配体之间具有可替代的连接。当将晶体成核诱导剂吡嗪加入反应体系中时，分离出配合物2，在其结构中未观察到吡嗪。在2中，由Ag（I）阳离子和OOCCF_3-阴离子形成的1D无机链通过L配体连接以产生2D网络。当将另一种感应剂咪唑添加到反应体系中时，合成了具有（4,4）拓扑结构的3，在3中又没有发现咪唑。当1-3用作亚氨基酯与甲基之间的环加成反应的催化剂时3丙烯酸酯提供了最高的收率，其中3中特殊的通道尺寸导致其选择性的催化性能。

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