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Long rigid ligand induced basket-type phosphomolybdate photo-/electro-catalytic materials

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Abstract

Long rigid ligand induced two basket-type inorganic–organic hybrid materials, (H4btb)2[Sr⊂P6MoV2MoVI16O73]·2H2O (1) and (H4bbtb)(H2bbtb)4[{FeIII(H2O)4Na(H2O)2}{Sr⊂P6MoV2MoVI16O73}2]·2H2O (2) (btb = 4,4-bis(1-H-1,2,4-triazol-1-yl)biphenyl, bbtb = 1,4-bis(benzotriazol-1-3-ly) benzene), have been hydrothermally synthesized and fully characterized. Compounds 1 and 2 contain 2-electron reduced basket-type polyoxoanion {Sr⊂P6MoV2MoVI16O73} (abbreviated as {P6Mo18O73}) as a basic cluster unit. In compound 1, adjacent btb molecules are parallel to each other and interconnect via π–π interactions to form two kinds of dimeric ligand units, which are further linked alternately via weak interactions to yield a unique pure organic double chain. The basket cluster grafts onto the chain in the ABAB mode via intensive hydrogen bond interactions leading to an organic–inorganic supramolecular layer along the [011] direction. Meanwhile, each basket polyoxoanion connects to two adjacent basket cages via supramolecular interactions to form a 1D supramolecular chain along the [001] direction. The 2D layer and 1D chains intersect with each other to form a 3D network with basket cages as junctions. Compound 2 is a dimeric string connected by {Na(H2O)2} and {Fe(H2O)4} units, and is the first basket dimer chain linked by a mixed metal linker. The protonated ligand bbtb connects adjacent dimeric chains to yield a 2D supramolecular layer and a 3D network via extensive supramolecular interactions. They display dual functions of electrocatalytic properties and efficient photocatalytic performance for the degradation of refractory dye Azon Phloxine (AP) under UV light.

Graphical abstract: Long rigid ligand induced basket-type phosphomolybdate photo-/electro-catalytic materials

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Publication details

The article was received on 28 Aug 2018, accepted on 22 Oct 2018 and first published on 23 Oct 2018


Article type: Paper
DOI: 10.1039/C8NJ04375B
Citation: New J. Chem., 2018, Advance Article
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    Long rigid ligand induced basket-type phosphomolybdate photo-/electro-catalytic materials

    F. Meng, J. Lv, K. Yu, M. Zhang, K. Wang and B. Zhou, New J. Chem., 2018, Advance Article , DOI: 10.1039/C8NJ04375B

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