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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >An unprecedented polyoxometalate-based hybrid solid constructed from a neutral metal-organic macrocycle and Dawson polyoxotungstate anions
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An unprecedented polyoxometalate-based hybrid solid constructed from a neutral metal-organic macrocycle and Dawson polyoxotungstate anions

机译:由中性金属-有机大环化合物和道森多氧钨酸根阴离子构成的前所未有的基于多金属氧酸盐的杂化固体

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摘要

The self-assembly procedure of a Dawson-type polyoxotungstate with pyridine-2,6-dicarboxylate (H_2pdc) and copper~(II) ions produces an exquisite supramolecular aggregation. In the structure, a neutral cucurbit[n]uril-like metal-organic macrocycle is formed of six copper centers and six pdc~(2-) ligands, while a pair of Dawson-type polyoxotungstates are linked to the bottom and top portals of this macrocycle at the joint with the alkali metal ions. A control experiment was carried out to produce a different metalloligand-supported hybrid (instead of the metallomacrocycle) to verify the structure-directing role of Dawson polyanions in the title compound. In addition, the photoluminescent and magnetic properties of the hybrid solid have also been investigated.
机译:Dawson型聚氧钨酸盐与2,6-二羧酸吡啶(H_2pdc)和铜(II)离子的自组装过程产生了精细的超分子聚集。在该结构中,一个中性葫芦状的[n]尿嘧啶样金属有机大环由六个铜中心和六个pdc〜(2-)配体形成,而一对Dawson型多氧钨酸盐连接到该化合物的底部和顶部门这个大环在与碱金属离子的结合处。进行了对照实验,以产生不同的金属配体负载的杂化物(而不是金属大环化合物),以验证道森聚阴离子在标题化合物中的结构指导作用。另外,还研究了杂化固体的光致发光和磁性。

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