Tuning Ni-Pyrazolate Frameworks by Post-Synthetic Fe-Incorporation for Oxidase-Mimicking H 2 O 2 Activation

The introduction of iron ionic sites by metal exchange of defective homometallic nickel pyrazolate frameworks generates non-precious, Earth-abundant, first-row heterometallic Fe/Ni-pyrazolate frameworks. The Fe incorporation at the Ni nodes of the framework allows to control the hydrogen peroxide ac...

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Bibliographic Details
Published inChemPlusChem (Weinheim, Germany) Vol. 88; no. 12; p. e202300447
Main Authors Martín, Nuria, Cirujano, Francisco G, García-Verdugo, Eduardo, Llorca, Jordi, Del Río, Enrique, Jiménez-Morales, Ignacio, Bogeat-Barroso, Adrián, López-Maya, Elena, Álvarez, Mayra G
Format Journal Article
LanguageEnglish
Published Germany 01.12.2023
Subjects
oxidase mimic
iron catalysis
catalase-like activity
heterometallic MOFs
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Summary:The introduction of iron ionic sites by metal exchange of defective homometallic nickel pyrazolate frameworks generates non-precious, Earth-abundant, first-row heterometallic Fe/Ni-pyrazolate frameworks. The Fe incorporation at the Ni nodes of the framework allows to control the hydrogen peroxide activation, minimizing its decomposition and O liberation, occurring at the homometallic Ni nodes. The generation of Fe-OH reactive oxygen species at the heterometallic Fe/Ni nodes is demonstrated by the higher activity in the proof-of-concept oxidation of 1-phenylethanol to acetophenone in an aqueous medium.
ISSN:2192-6506
2192-6506
DOI:10.1002/cplu.202300447