A mixed-ligand strategy regulates thorium-based MOFs

Two novel thorium-based organic frameworks (Th-IHEP-5 and Th-IHEP-6) were assembled from a hexanuclear thorium cluster, porphyrin derivative ligand and linear carboxylic acid ligands via a mixed-ligand strategy. As a stable heterogeneous catalyst, Th-IHEP-5 exhibited high photocatalytic activity for...

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Published inDalton transactions : an international journal of inorganic chemistry Vol. 49; no. 4; pp. 983 - 987
Main Authors Huang, Zhi-wei, Hu, Kong-qiu, Mei, Lei, Kong, Xiang-he, Yu, Ji-pan, Liu, Kang, Zeng, Li-wen, Chai, Zhi-Fang, Shi, Wei-Qun
Format Journal Article
LanguageEnglish
Published England Royal Society of Chemistry 28.01.2020
Subjects
Carboxylic acids
Catalytic activity
Crystallography
Ligands
Metal-organic frameworks
NMR
Nuclear magnetic resonance
Oxidation
Photocatalysis
Photoelectric effect
Photoelectric emission
Size distribution
Thorium
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Summary:Two novel thorium-based organic frameworks (Th-IHEP-5 and Th-IHEP-6) were assembled from a hexanuclear thorium cluster, porphyrin derivative ligand and linear carboxylic acid ligands via a mixed-ligand strategy. As a stable heterogeneous catalyst, Th-IHEP-5 exhibited high photocatalytic activity for the oxidation of 2-chloroethyl ethyl sulfide (CEES) and the fixation of CO 2 . The good catalytic effect is attributed to the large conjugated system of porphyrin and the photosensitizer enhancing effects of bipyridine. A thorium-based MOF formed via the synergistic construction of porphyrin and bipyridyl based on the mixed-ligand strategy has the effect of enhancing photocatalysis.
Bibliography:For ESI and crystallographic data in CIF or other electronic format see DOI
2
1920125
and
Electronic supplementary information (ESI) available: Methods of synthesis and characterization of MOFs, typical figures including PXRD, FT-IR spectrum, NMR spectra, TGA curves, N
10.1039/c9dt04158c
1920127
sorption/desorption isotherm and pore-size distribution, UV-vis spectrum and transient photocurrent responses are included. CCDC
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ISSN:1477-9226
1477-9234
1477-9234
DOI:10.1039/c9dt04158c