Four Anderson-type [TeMo6O24]6−-based metal–organic complexes with a new bis(pyrimidine)-bis(amide): multifunctional electrochemical and adsorption performances

Abstract

Four new isostructural POM-based metal–organic complexes, [H2X2(L)2(TeMo6O24)(H2O)6]·4H2O [X = Cu (1), Co (2), Ni (3) and Zn (4); L = N,N′-bis(4-pyrimidinecarboxamido)-1,4-benzene], were synthesized with a new rigid bis(pyrimidine)-bis(amide) ligand by varying the central metal under hydrothermal conditions, and characterized by means of single crystal X-ray diffraction, IR spectra and powder X-ray diffraction (PXRD). Complexes 1–4 exhibit similar 2D supramolecular structures based on the [H2X2(L)2(TeMo6O24)(H2O)6] dinuclear units linked through hydrogen bonds. Complexes 1–4 not only show good electrochemical sensing properties for BrO3−, NO2−, hydrogen peroxide and ascorbic acid, but can also be used as adsorbents for the removal of organic dyes such as gentian violet and methylene blue. Among them, complex 4 has the lowest detection limit and best dye adsorption capacity. Alternatively, the effect of central metals on the properties of the title complexes was discussed.

Graphical abstract: Four Anderson-type [TeMo6O24]6−-based metal–organic complexes with a new bis(pyrimidine)-bis(amide): multifunctional electrochemical and adsorption performances

Supplementary files

Article information

Article type
Paper
Submitted
09 Apr 2022
Accepted
07 May 2022
First published
13 May 2022

CrystEngComm, 2022, Advance Article

Four Anderson-type [TeMo6O24]6−-based metal–organic complexes with a new bis(pyrimidine)-bis(amide): multifunctional electrochemical and adsorption performances

J. Lu, J. Liang, H. Lin, Q. Liu, Z. Cui and X. Wang, CrystEngComm, 2022, Advance Article , DOI: 10.1039/D2CE00504B

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