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Polyoxometalates 2022, 1(2): 9140007 https://doi.org/10.26599/POM.2022.9140007
Research Article | Open Access | Issue | Published: 13 October 2022

Syntheses, crystal structures, and properties of four polyoxometalate-based metal–organic frameworks based on Ag(I) and 4,4′-dipyridine-N,N′-dioxide

Show Author's Information Haiyan Li,  Hui Pan,  Yanhua Fan,  Yan Bai ( ),  Dongbin Dang ( )
Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
Keywords:
electrocatalysis, metal–organic frameworks, polyoxometalates, crystal structures
Cite this article:
Li H, Pan H, Fan Y, et al. Syntheses, crystal structures, and properties of four polyoxometalate-based metal–organic frameworks based on Ag(I) and 4,4′-dipyridine-N,N′-dioxide. Polyoxometalates, 2022, 1(2): 9140007. https://doi.org/10.26599/POM.2022.9140007
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Abstract Full text Electronic supplementary material About this article

Four new metal–organic frameworks ([Ag3(dpdo)3.5(DMF)(PW12O40)]∙H2O (1), [Ag3(dpdo)5(DMF)2(PW12O40)]∙2CH3OH (2), [Ag3(dpdo)5(DMF)2(PMo12O40)]∙4H2O (3), and H0.5[Ag4.5(dpdo)5(DMF)(BW12O40)]∙5H2O (4); dpdo = 4,4'-dipyridine-N,N'-dioxide) based on polyoxometalates were created, and their properties were examined using infrared (IR) spectroscopy, powder X-ray diffraction, elemental analysis, and comprehensive single-crystal structure investigations. In compounds 1 and 4, the secondary building blocks ([Ag6O20] and [Ag3O14] for 1 and 4, respectively) serve as nodes that connect the dpdo ligands with the polyanions ([PW12O40]3− and [BW12O40]5− for 1 and 4, respectively) to create a three-dimensional (3D) framework. By joining Ag ions and dpdo ligands and enclosing the polyanions ([PW12O40]3− and [PMo12O40]3− for compounds 2 and 3, respectively) as templates and counterions, compounds 2 and 3 display a two-dimensional (2D) gridlike network. Additionally, the solid state optical, luminescent, and ultraviolet–visible (UV–vis) spectral features of compounds 1–4 as well as the electrochemical characteristics of compounds 1–3 were examined.


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About this article

Syntheses, crystal structures, and properties of four polyoxometalate-based metal–organic frameworks based on Ag(I) and 4,4′-dipyridine-N,N′-dioxide

Show Author's information Haiyan Li, Hui Pan, Yanhua Fan, Yan Bai ( ), Dongbin Dang ( )
Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China

Abstract

Four new metal–organic frameworks ([Ag3(dpdo)3.5(DMF)(PW12O40)]∙H2O (1), [Ag3(dpdo)5(DMF)2(PW12O40)]∙2CH3OH (2), [Ag3(dpdo)5(DMF)2(PMo12O40)]∙4H2O (3), and H0.5[Ag4.5(dpdo)5(DMF)(BW12O40)]∙5H2O (4); dpdo = 4,4'-dipyridine-N,N'-dioxide) based on polyoxometalates were created, and their properties were examined using infrared (IR) spectroscopy, powder X-ray diffraction, elemental analysis, and comprehensive single-crystal structure investigations. In compounds 1 and 4, the secondary building blocks ([Ag6O20] and [Ag3O14] for 1 and 4, respectively) serve as nodes that connect the dpdo ligands with the polyanions ([PW12O40]3− and [BW12O40]5− for 1 and 4, respectively) to create a three-dimensional (3D) framework. By joining Ag ions and dpdo ligands and enclosing the polyanions ([PW12O40]3− and [PMo12O40]3− for compounds 2 and 3, respectively) as templates and counterions, compounds 2 and 3 display a two-dimensional (2D) gridlike network. Additionally, the solid state optical, luminescent, and ultraviolet–visible (UV–vis) spectral features of compounds 1–4 as well as the electrochemical characteristics of compounds 1–3 were examined.

Keywords: electrocatalysis, metal–organic frameworks, polyoxometalates, crystal structures

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Received: 11 July 2022
Revised: 21 August 2022
Accepted: 19 September 2022
Published: 13 October 2022
Issue date: December 2022

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