| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1305662 | Inorganica Chimica Acta | 2014 | 7 Pages |
•Two compounds containing one-dimensional polyanionic chains of monosubstituted Keggin clusters were synthesized.•There are two kinds of nanosized polyanionic clusters to simultaneously exist in the one crystal framework.•The photocatalytic activities of both complexes for methylene blue (MB) degradation under UV were explored.
Two organic–inorganic hybrids (H2bpp)4[PW11CuO39][PW12O40] (1) (bpp = 1,3-di(4-pyridyl)propane), H5(bpe)3[SiW11CoO39]·2H2O (2) (bpe = 1,2-di(4-pryridyl)ethylene) have been hydrothermally synthesized and characterized by IR, UV, powder and single crystal X-ray diffraction. The analysis results reveal that both of two compounds contain one-dimensional polyanionic chains of monosubstituted Keggin clusters through M–O–M (M = Cu/W/Co) linkages. In the crystal framework of 1 there are two types of nanosized polyanionic clusters of classic saturated Keggin-type [PW12O40]3− and Cu-doped [PW11CuO39]5− anions. The protonated discrete organic substrates either flexible bpp in 1 or rigid bpe in 2 are attached to the surrounding of polyanions via non-covalent interactions. The photoluminescence emissions of 1 and 2 in CH3OH solution at room temperature have been investigated. The photocatalytic activity of two complexes for methylene blue (MB) degradation under UV irradiation is explored.
Graphical abstractTwo monolacunary tungstates (H2bpp)4[PW11CuO39][PW12O40] (1) (bpp = 1,3-di(4-pyridyl)propane) and H5(bpe)3[SiW11CoO39]·2H2O (2) (bpe = 1,2-di(4-pryridyl)ethylene) had been hydrothermally synthesized and characterized. The photocatalytic activities of both complexes for methylene blue (MB) degradation under UV were explored.Figure optionsDownload full-size imageDownload as PowerPoint slide
