Assembly of six [HxAs2Mo6O26](6−x)− cluster-based hybrid materials from 1D chains to 3D framework with multiple Cu–N complexes
| Autor: | Zhifeng Zhao, Wenqi Zhao, Xiu-Juan Ma, Lin Xia, Bowen Cong, Zhanhua Su, Baibin Zhou, Bao-Yi Yu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010405 organic chemistry
Inorganic chemistry General Chemistry Crystal structure 010402 general chemistry Condensed Matter Physics 01 natural sciences Decomposition 0104 chemical sciences Hexane chemistry.chemical_compound Crystallography X-ray photoelectron spectroscopy chemistry Cluster (physics) Photocatalysis General Materials Science Benzene Hybrid material |
| Zdroj: | CrystEngComm. 19:2739-2749 |
| ISSN: | 1466-8033 |
| DOI: | 10.1039/c7ce00319f |
| Popis: | A series of organic–inorganic hybrid compounds, [{Cu(4,4′-bipy)1.5(H2O)2}2{H2As2Mo6O26}] (1), [{Cu (biim)2}2{HAs2Mo6O26}{Cu(biim)Cl}]·H2O (2), (H2bib)[{Cu(H2O)2(bib)}{H2As2Mo6O26}]·2H2O (3), [{(Hbix)Cu(bix)0.5}2{As2Mo6O26}]·2H2O (4), [{Cu(bmb)1.5(H2O)}2{H2As2Mo6O26}]·2H2O (5), 0 and [{Cu2(bth)4}{H2As2Mo6O26}]·H2O (6) (4,4′-bipy = 4,4′-bipyridine; biim = biimidazole; bib = 1,4-bis(1-imidazolyl)benzene; bix = 1,4-bis(imidazol-1-ylmethyl)benzene; bmb = 1,4-bis(benzimidazol-1-yl)benzene; bth = 1,6-bis(1,2,4-triazol-lyl)hexane), were hydro-thermally synthesized and structurally characterized via elemental analysis, TG, IR, XPS, XRD, and single-crystal X-ray diffraction. The crystal structures 1–6 are formed by metal–organic complexes and the [HxAs2Mo6O26](6−x)− cluster. Compounds 1–2 feature infinite 1D-chain structures. Compounds 3–5 form 2D-layer structures in which Cu cations are five-, six-coordinated with polyoxoanions and organic ligands. Notably, compound 6 introduces the POM system into a metal–organic framework (MOF) to form a unique POMOF {42·611·82}{42·64}{44·69·7·8} topological structure. The coordination modes of the [HxAs2Mo6O26](6−x)− cluster in compounds 2, 5 and 6 are reported for the first time. The photocatalytic properties of 1–6 are studied for the decomposition of methylene blue (MB) under UV light. In addition, all the compounds exhibit good electrocatalytic performances for the reduction of nitrite. |
| Databáze: | OpenAIRE |
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