Syntheses, crystal structures and photocatalytic properties of homometallic and heterometallic titanium-oxo clusters
| Autor: | Hui Zhang, Huan Wang, Wang Yating, Xin Li, Yanli Gai, Tingyu Wei, Kecai Xiong, Yuwen Shi, Zhou Aling, Yi Zhu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
chemistry.chemical_element 02 engineering and technology Zinc Crystal structure 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Ion Inorganic Chemistry Crystallography chemistry.chemical_compound Dicarboxylic acid chemistry Materials Chemistry Photocatalysis Rhodamine B Physical and Theoretical Chemistry 0210 nano-technology Photocatalytic degradation Titanium |
| Zdroj: | Inorganic Chemistry Communications. 123:108324 |
| ISSN: | 1387-7003 |
| Popis: | Two new titanium-oxo clusters, named [Ti6(bpdc)2(μ2-O)(μ3-O)2(iPrO)14] (1) and [Ti4Zn8(bpdc)8(μ3-O)8(dma)2(iPrOH)2·4DMF·2iPrOH] (2) (H2bpdc = 2, 2′-biphenyl -dicarboxylic acid, dma = dimethylamine, and DMF = N,N′-dimethylformamide), have been successfully synthesized and characterized. Single crystal diffraction shows that compound 1 features a Ti6 core based on two coplanar trinuclear Ti3-subunits linked by two carboxylic ligands. Compound 2 possesses a heterometallic Ti4Zn8 core based on a central Ti4 subunit and eight neighboring zinc(II) ions in the presence of eight carboxylic ligands. The estimated narrow optical bandgaps of compounds 1 and 2 are 3.07 and 3.05 eV, respectively. Furthermore, compounds 1 and 2 exhibit much higher and more efficient photocatalytic degradation abilities for rhodamine B than TiO2 under visible light irradiation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect