title: An unprecedented polyoxometalate-based hybrid solid constructed from a neutral metal-organic macrocycle and Dawson polyoxotungstate anions.
abstract: The self-assembly procedure of a Dawson-type polyoxotungstate with pyridine-2,6-dicarboxylate (H2pdc) 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.
authors: School of Chemistry, Beijing Institute of Technology and Key Laboratory of Cluster Science, Ministry of Education of China, Beijing, 100081, PR China.
authors: Yanqing
authors: Y
authors: Xu
authors: Yuanzhe
authors: Y
authors: Gao
authors: Wei
authors: W
authors: Wei
authors: Zhiqin
authors: Z
authors: Wang
authors: Shan
authors: S
authors: Li
authors: Changwen
authors: C
authors: Hu