Issue 43, 2024

Inorganic ligand-protected synthesis and characterization of a {Ag6} cluster within an annular polyoxometalate

Abstract

Silver–polyoxometalate (Ag–POM) complexes, safeguarded by polyoxometalate (POM) ligands, are scarcely documented. Nonetheless, the targeted synthesis of Ag–POMs remains a focal point due to their prospective applications. Here, we successfully obtained an {Ag6} cluster, characterized as Na6K6H25[(P6W37O127){Ag2(Ag6O19)}]·53H2O (1), within an annular polyoxometalate framework via a ligand-protecting strategy in a purely inorganic environment. The hexavacant Dawson-type precursor, [H2P2W12O48]12−, served as a structure-directing as well as a functionalizing unit in the process of synthesis. Proton conducting measurements of {Ag6} indicated good proton conductivity performance, achieving a conductivity value (σ) of 3.0 × 10−2 S cm−1 at 368 K and 98% relative humidity (RH). Furthermore, the {Ag6} cluster demonstrated significant catalytic activity in the selective photoreduction of nitrobenzene.

Graphical abstract: Inorganic ligand-protected synthesis and characterization of a {Ag6} cluster within an annular polyoxometalate

Supplementary files

Article information

Article type
Paper
Submitted
27 Jul 2024
Accepted
24 Sep 2024
First published
03 Oct 2024

J. Mater. Chem. A, 2024,12, 29580-29587

Inorganic ligand-protected synthesis and characterization of a {Ag6} cluster within an annular polyoxometalate

Y. Sun, S. Zhang, M. Cai, P. Ma, J. Niu and J. Wang, J. Mater. Chem. A, 2024, 12, 29580 DOI: 10.1039/D4TA05238B

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