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Two anderson-based supramolecular compounds modified by 4,4'-dipyridy synthesized in one-pot

Journal of Molecular Science 2024年第2期40卷 160-166页

作者： Li T. Tian A. Ying J. Department of Pharmacy Jinzhou Medical University Jinzhou 121001 China College of Chemistry and Materials Engineering Bohai University Jinzhou 121001 China

Using symmetrical rigid organic ligand 4,4'-dipyridy (4,4'-bipy), two new anderson-based supramolecular compounds, namely, [H2(4,4'-bipy)]3·(TeMo6O24)·(H2Mo6O19) (1) and {Cu2[H(4,4'-bipy)] 2(H2O)6(TeMo6O24)}·4H2O (2), were synthesized in one-pot under hydrothermal conditions. The compounds 1 and 2 have been tested by IR spectra, elemental analyses and single-crystal X-ray diffraction. Compound 1 contains one discrete anderson anion, one Lindqvist anion and three 4,4'-bipy organic ligands. The anions and 4,4'-bipy alternate with each other by hydrogen bonding, building a supramolecular 1D chain. Adjacent 1D chains are interlinked through hydrogen bonding interactions to further connect a supramolecular 2D layer. Compounds containing both anderson and Lindqvist polyanions are not common in the crystal structure of poms. Compound 2 contains one anderson anion and two metal-organic subunits {Cu2[H(4,4'-bipy)]2 (H2O)6}6+ as modifiers. The anderson anions and {Cu2 [H(4,4'-bipy)]2 (H2O)6}6+ subunits are organized into alternating through hydrogen bonding interactions to construct a supramolecular 1D chain. Additionally, the electrochemical properties of compounds 1 and 2 as well as photocatalytic properties are investigated. Results show that compounds 1 and 2 have photocatalytic activity, which can photocatalyze the degradation of organic dyes MB and AF. Also, compounds 1 and 2 have good electrochemical properties for amperometric detection of NO2- and Cr(?). Furthermore, Compound 2 can be used as materials of supercapacitor. © 2024, Department of Chemistry, Northeast Normal University. All rights reserved.

关键词： anderson pom electrochemistry hydrothermal syntheses photocatalysis supramolecular structure

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