Europium-based metal-organic framework as a photocatalyst for the one-electron oxidation of organic compounds.
作者： Jun Rye Choi , Takashi Tachikawa , Mamoru Fujitsuka , Tetsuro Majima
DOI: 10.1021/LA101770H
关键词:
摘要: Lanthanide-based metal−organic frameworks (Ln-MOFs) are fascinating because of their versatile coordination geometry, unique luminescent and magnetic properties, possible high framework stability to water. We synthesized nanosized europium-based MOF (Eu-MOF) particles investigated the photoinduced electron transfer between excited Eu-MOF nanoparticles various organic compounds, such as aromatic sulfides amines. From time-resolved emission measurements, bimolecular quenching rate constants luminescence from Eu3+ ions in by donors were determined explained terms Marcus theory electron-transfer reactions. Furthermore, spatially resolved images obtained confocal fluorescence microscopy revealed that small (large) quencher molecules quickly (slowly) homogeneously (inhomogeneously) penetrate microsized crystals. These observations led us confidently assume possibility Eu-MOFs work a siz...
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