A New Supramolecular Hybrid Based on Keggin Polyoxotungstates and Dinuclear Cl-Bridged Cu(II) Complex: Synthesis, Characterization, and Properties

• Published in: Russian journal of coordination chemistry 2022-09, Vol.48 (9), p.592-599
• Main Authors: Liu, Y. B., Zheng, J. J., Tian, G., Wang, H., Alating, S. G., Nie, J. S.
• Format: Article
• Language: English
• Subjects: Aqueous solutions; Chemistry; Chemistry and Materials Science; Epoxidation; Infrared analysis; Infrared spectroscopy; Inorganic Chemistry; Methylene blue; Photodegradation; Photoelectrons; Physical Chemistry; Polyelectrolytes; Rhodamine; Single crystals; Spectroscopic analysis; Ultraviolet radiation; X ray photoelectron spectroscopy
• ISSN: 1070-3284; 1608-3318
• DOI: 10.1134/S1070328422090020

A new compound, [ Cl(2,2'-Bipy) 4 ]{[Cu II (2,2'-Bipy) 2 ][ O 40 ]}·2H 2 O ( I ) (2,2'-Bipy = 2,2'-bipyridine), has been hydrothermally synthesized and characterized by elemental analysis, infrared (IR) spectroscopy, X-ray photoelectron spectroscopy (XPS), thermal gravimetric (TG) analysis, power X-ray diffraction (PXRD) and X-ray single-crystal diffraction analysis (CCDC no. 1936106). Compound I consists of a Keggin polyoxotungstate mono-supported Cu II -2,2'-Bipy complex, a dinuclear Cl-bridged Cu(II) complex and two water molecules. The [ Cl(2,2'-Bipy) 4 ] 3+ unit is a counter ion which is anchored to the polyanion via non-covalent intermolecular interaction. In addition, the fluorescence and both the catalytic performance for the epoxidation styrene and the photocatalytic property for degradation of Rhodamine B (RhB), Methylene blue (MB) and RhB + MB aqueous solutions under UV irradiation of compound I have been investigated and shown good properties.