An Interpenetrating Architecture Based on the Wells-Dawson Polyoxometalate and Ag-I center dot center dot center dot Ag-I Interactions

作者：Zhang, Peng-peng; Peng, Jun^*; Pang, Hai-jun; Sha, Jing-quan; Zhu, Min; Wang, Dan-dan; Liu, Ming-guan; Su, Zhong-min

来源：Crystal Growth & Design, 2011, 11(7): 2736-2742.

DOI：10.1021/cg1012445

• METAL-ORGANIC FRAMEWORK
• COMPOUNDS BUILT-UP
• COORDINATION-POLYMER
• ELECTROCATALYTIC REDUCTION
• CRYSTAL-STRUCTURE
• 3D ARCHITECTURES
• BUILDING-BLOCKS
• SILVER
• CLUSTERS
• NITRITE

A new compound based on the Wells-Dawson polyoxometalate, Ag-7(bbi)(5)(OH)(P2W18O62) (b-b-i = 1,1'-(1,4-butanediy)bis(imidazole)) (1), has been hydrothermally synthesized and characterized by the normal physical methods and single-crystal X-ray diffraction. Compound 1 represents the first interpenetrating framework based on the Wells-Dawson POMs. The Ag-I center dot center dot center dot Ag-I interactions are crucial in the formation of the two individual motifs: in the first interpenetrating motif, the supported {Ag-2}(2+) dimers and the P2W18 polyanions form an infinite inorganic chain, then the Ag+ monomers and bbi ligands extend the chain to form a three-dimensional framework. The second motif is constructed by the Ag(-)bbi meso-helix chains which are stitched by the unsupported Ag7 center dot center dot center dot Ag7 dimers to form a twodimensional layer with huge loops. The electrochemical study exhibits that compound 1 could be used as electrocatalyst in the electrical reductions of bromate. In addition, compound 1 shows a photocatalytic action for degradation of RhB.

• 出版日期2011-7
• 单位东北师范大学; 佳木斯大学