A series of nine Ce(<sc>iv</sc>)-based metal organic frameworks with the UiO-66 structure containing linker molecules different sizes and functionalities were obtained under mild synthesis conditions short reaction times.

Over the past decade, zirconium-terephthalate UiO-66 has evolved into one of most intensely studied metal–organic frameworks (MOFs) to date. Among fascinating and pervasive features this material are defects, their influence on a multitude its properties. However, simultaneous occurrence two defect types, missing linkers nodes, limits extent which certain properties can be accurately matched framework's structure. In contribution, we present strategy unequivocally create linker defects in...

While titanium-based metal-organic frameworks (MOFs) have been widely studied for their (photo)catalytic potential, only a few TiIV MOFs reported owing to the high reactivity of employed titanium precursors. The synthesis COK-47 is now presented, first Ti carboxylate MOF based on sheets O6 octahedra, which can be synthesized with range different linkers. as an inherently defective nanoparticulate material, rendering it highly efficient catalyst oxidation thiophenes. Its structure was...

The introduction of Ce4+ as a structural cation has been shown to be promising route redox active metal-organic frameworks (MOFs). However, the mechanism by which these MOFs act catalysts remains unclear. Herein, we present detailed study site in [Ce6 O4 (OH)4 ]-based such Ce-UiO-66, involved aerobic oxidation benzyl alcohol, chosen model reaction. X-ray absorption spectroscopy (XAS) data confirm reduction up one ion per Ce6 cluster with corresponding outwards radial shift due larger radius...

Heterogeneous palladium single-site MOF catalysts for the oxidative coupling of arenes <italic>via</italic> C–H/C–H: superior TONs due to active site isolation.

A new precursor method using glycinate/nitrate capped Ce₆ clusters enables the synthesis of Ce(<sc>iv</sc>) MOFs with reactive linkers.

Modulator-mediated functionalization (MoFu) is introduced as a new and versatile platform tool to improve the separation performance of metal-organic framework (MOF)-based membranes, exemplified here by creation mixed-matrix membranes (MMMs) with enhanced CO2 efficiency. The unique structure MOF-808 allows incorporation CO2-philic modulators in MOF during one-pot synthesis procedure water, thus creating straightforward way functionalize both corresponding MMM. As proof concept, series...

Peptide bond hydrolysis catalyzed by NU-1000 MOF revealed key structural features that influence the catalytic performance of Zr₆based MOFs.

The catalytic activity of metal–organic frameworks (MOFs) toward peptides and proteins provides an attractive route for the development nanozymes applications in biotechnology proteomics, particularly field protein identification using mass spectrometry. Here, we report that carefully tuning Ce/Zr metal ratio is a promising strategy to overcome structural limitations originate from high connectivity Zr6 node also increase peptidase MOF while preserving material's nano-topology stability. A...

Stoichiometric proton-coupled electron transfer (PCET) reactions of the metal–organic framework (MOF) MIL-125, Ti8O8(OH)4(bdc)6 (bdc = terephthalate), are described. In presence UV light and 2-propanol, MIL-125 was photoreduced to a maximum 2(e–/H+) per Ti8 node. This stoichiometry shown by subsequent titration material with 2,4,6-tri-tert-butylphenoxyl radical. reaction occurred PCET give corresponding phenol original, oxidized MOF. The high level charging, independence charging amount...

Abstract While titanium‐based metal–organic frameworks (MOFs) have been widely studied for their (photo)catalytic potential, only a few Ti IV MOFs reported owing to the high reactivity of employed titanium precursors. The synthesis COK‐47 is now presented, first carboxylate MOF based on sheets O 6 octahedra, which can be synthesized with range different linkers. as an inherently defective nanoparticulate material, rendering it highly efficient catalyst oxidation thiophenes. Its structure was...

Correlation of mixed-matrix membrane CO₂/N₂ separation performance with the corresponding metal-organic framework (MOF) structural parameters shows that MOF CO₂ adsorption enthalpy is best predictor performance.

Abstract Metal–organic frameworks (MOFs) are emerging materials for luminescent and photochemical applications. Armed with femto to millisecond spectroscopies, fluorescence microscopy, the photobehaviors of two Ce‐based MOFs unravelled: Ce‐NU‐1000 Ce‐CAU‐24‐TBAPy. It is observed that both show ligand‐to‐cluster charge transfer reactions in ≈100 ≈70 fs Ce‐CAU‐24‐TBAPy, respectively. The formed separated states, resulting electron hole generation, recombine different times each MOF, being...

Abstract The less polar phase of liquid–liquid extraction systems has been studied extensively for improving metal separations; however, the role more overlooked far too long. Herein, we investigate metals from a variety solvents and demonstrate that, influence on is so significant that many can be largely tuned, separations significantly enhanced by selecting suitable solvents. Furthermore, mechanism how affect proposed based comprehensive characterizations. method using in paves new...

NO has been catalytically converted by Ce-UiO-66 and bimetallic Ce/Zr-CAU-24.

The functionality of the UiO-66(Zr) linkers affects number defects on Zr6 clusters, leading to differences in MOFs' Brønsted acidity, which promotes dehydration fructose into HMF.

Six different chiral and achiral alkane dicarboxylic C₄-acids resulted in the formation of Ce(<sc>iv</sc>)-MOFs crystallizing three framework topologies.

Storage of electrons in the Ti₈O₈ nodes MOF MIL-125 is controlled by presence charge-balancing Na⁺ cations.

Molybdenum (Mo) is an essential plant micronutrient. Despite low Mo requirements, deficiencies are not uncommon and soluble fertilizers often applied. However, may result in poor use efficiency due to strong sorption (acid weathered soils) or leaching (lighter-textured soils). Here, ZnAl layered double hydroxides (LDHs), loaded with molybdate (MoO4), were examined for their potential as slow-release compounds. Chloride-exchanged LDHs varying Zn/Al ratios (2, 3, 4) exchanged MoO4. Zn2Al LDH...

A novel approach for the analysis of extended X-ray absorption fine structure (EXAFS) spectra is developed exploiting an inverse machine learning-based algorithm. Through this approach, it possible to explore and account for, in a precise way, nonlinear geometry dependence photoelectron backscattering phases amplitudes single multiple scattering paths. In addition, determined parameters are directly related 3D atomic structure, without need use complex parametrization as classical fitting...

The occurrence of metal ion exchange in Zn3[Co(CN)6]2 and Cu3[Co(CN)6]2 Prussian blue analogues (Zn-Co Cu-Co PBAs) was demonstrated for the first time. While Cu(ii) easily occurs Zn-Co PBA, atoms PBA by Zn(ii) proved to be more difficult. At low medium loadings, catalytic activity exchanged PBAs A3 coupling reaction benzaldehyde, piperidine phenylacetylene higher than that bimetallic multi similar composition prepared co-precipitation. This result showcases benefits process as a preparation...

Pharmaceutical R&D is increasingly employing data-driven approaches with specialized process analytical technology (PAT) tools to develop processes efficiently and reliably. However, some unit operations are still developed based on human observations, which lack quantification objectivity require personnel attending the experiment. In this article, we demonstrate ease of using cameras provide data in nearly every operation. While applications basic advanced image analysis algorithms have...