Article ; Online: Hydrothermal synthesis, structure, and catalytic properties of a (4,6)-connected framework constructed from Keggin-type polyoxometalate units and tetranuclear copper complexes
Polyoxometalates, Vol 3, Iss 1, p
2024 Volume 9140039
Abstract: Under hydrothermal conditions, a Keggin-type polyoxometalate-based metal–organic complex, H4{[Cu4(EDDP)2(H2O)5]1.5(SiW12O40)}∙7.5H2O (CuW-EDDP, H4EDDP = ethylene-diamine-N,N'-dipropionic acid), was synthesized by reacting Na10[A-α-SiW9O34]·18H2O and ... ...
| Abstract | Under hydrothermal conditions, a Keggin-type polyoxometalate-based metal–organic complex, H4{[Cu4(EDDP)2(H2O)5]1.5(SiW12O40)}∙7.5H2O (CuW-EDDP, H4EDDP = ethylene-diamine-N,N'-dipropionic acid), was synthesized by reacting Na10[A-α-SiW9O34]·18H2O and CuCl2·2H2O in the presence of H4EDDP ligands and characterized by powder and single-crystal X-ray diffraction, infrared spectroscopy, elemental analysis, and thermogravimetry. Interestingly, CuW-EDDP exhibited a three-dimensional structure with (4,6)-connected constructed from [SiW12O40]4− units and tetranuclear Cu complexes [Cu4(EDDP)2(H2O)5]. As an effective heterogeneous catalyst, CuW-EDDP exhibited excellent performance, good reusability, and structural stability in the selective oxidation of methyl phenyl sulfide with high conversion (100%) and selectivity (98%) within 30 min. Furthermore, the catalytic activity of CuW-EDDP in the oxidation of other sulfide derivatives was investigated. |
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| Keywords | polyoxometalates ; keggin-type ; metal–organic complex ; catalytic oxidation ; sulfides ; Inorganic chemistry ; QD146-197 |
| Subject code | 540 |
| Language | English |
| Publishing date | 2024-03-01T00:00:00Z |
| Publisher | Tsinghua University Press |
| Document type | Article ; Online |
| Database | BASE - Bielefeld Academic Search Engine (life sciences selection) |
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