@article{Sun2024, 
author = {Jia-Yu Sun and Zi-Lan Wang and Zhong Zhang and Guo-Cheng Liu and Xiu-Li Wang},
title = {Hydrothermal synthesis, structure, and catalytic properties of a (4,6)-connected framework constructed from Keggin-type polyoxometalate units and tetranuclear copper complexes},
year = {2024},
journal = {Polyoxometalates},
volume = {3},
number = {1},
pages = {9140039},
keywords = {polyoxometalates, Keggin-type, metal–organic complex, catalytic oxidation, sulfides},
url = {https://www.sciopen.com/article/10.26599/POM.2023.9140039},
doi = {10.26599/POM.2023.9140039},
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 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.}
}