Location of dopant dictates proton-coupled electron transfer mechanism in vanadium-substituted polyoxotungstates.

ABSTRACT: Heterometal doping in polyoxometalates (POMs) is a useful strategy to impart modular reactivity by leveraging control over the physicochemical properties of the resulting materials. The dopant can occupy different position(s) within the POM that may affect the mechanism and/or outcome of a desired reaction. In this work, we illustrate that substituting one tungsten atom with vanadium in [PV_outW₁₁O₄₀]^4- (PV_outW₁₁) modulates the basicity of a bridging μ₂-O^2- ligand, increasing the strength of the O-H bond formed upon addition of the first proton-electron pair to the cluster by >20 kcal mol^-1 over that of its homometallic congener. The reaction of PV_outW₁₁ with an H-atom do

SUBMITTER: Lu Z 

PROVIDER: S-EPMC11913253 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature