An unprecedented polyoxometalate-based hybrid solid constructed from a neutral metal-organic macrocycle and Dawson polyoxotungstate anions

作者：Xu, Yanqing; Gao, Yuanzhe; Wei, Wei; Wang, Zhiqin; Li, Shan; Hu, Changwen^*

来源：Dalton Transactions, 2013, 42(15): 5228-5231.

DOI：10.1039/c3dt32991g

• 1D CHAIN
• FRAMEWORK
• COMPOSITES
• ASSEMBLIES
• COMPLEXES
• CATALYSTS
• COMPOUND
• CLUSTERS
• POLYMER
• CATIONS

The self-assembly procedure of a Dawson-type polyoxotungstate with pyridine-2,6-dicarboxylate (H(2)pdc) 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.

• 出版日期2013
• 单位河北师范大学; 北京理工大学; 首都师范大学