Synthesis of a Keggin-type polyoxoselenidotungstate <i>via</i> site-selective oxygen-to-selenium substitution.

ABSTRACT: Selenium, a group 16 (chalcogen) element, can endow metal oxides with unique properties when replacing oxygen atoms from specific sites. Polyoxometalates (POMs), a class of anionic metal oxide clusters, exhibit structure-dependent properties and applications. Despite the potential of chalcogen substitution, the replacement of oxygen atoms in POMs with chalcogens has been rarely explored. In a recent study, we demonstrated site-selective oxygen-to-sulfur substitution in the Keggin-type POM [SiW₁₂O₄₀]^4-. Building on this, we now report the first synthesis of a polyoxoselenidotungstate, featuring terminal selenido ligands (W[double bond, length as m-dash]Se bonds), using a site-selective oxygen-to-selenium substitution reaction. By reacting [SiW₁₂O<

SUBMITTER: Yonesato K 

PROVIDER: S-EPMC12183570 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature