Institut Català d'Investigació Química (ICIQ): Enviaments recents
Ara mostrant els elements 261-280 de 1286
Polypyrene Cu Amidate Complexes on ITO Electrodes as Molecular Water Oxidation Anodes
Photoelectrochemical devices require solid anodes and cathodes for the easy assembly of the whole cell, and thus redox catalysts need to be deposited on solid surfaces. Molecular catalysts can be anchored on electrodes via ...
Insights into the Interfacial Charge Transfer Dynamics in Semiconductor-Molecular Catalyst Assemblies for Photo-induced CO2 Reduction
This mini–review summarises examples of photo and photoelectrochemical CO2 reduction reactions (CO2RR) using semiconductor–molecular catalyst–based hybrid assemblies in which studies of charge transfer dynamics were also ...
Cooperative Effects Drive Water Oxidation Catalysis in Cobalt Electrocatalysts through the Destabilization of Intermediates
A barrier to understanding the factors driving catalysis in the oxygen evolution reaction (OER) is understanding multiple overlapping redox transitions in the OER catalysts. The complexity of these transitions obscure the ...
Introducing 1,3-enyne functionalization by nitrene transfer reaction
In the context of carbon–nitrogen bond formation, metal-catalyzed nitrene transfer reactions constitute a powerful transformation. While many saturated and unsaturated substrates can be modified with this strategy, the ...
An Account on BiVO4 as Photocatalytic Active Matter
Photocatalytic materials are gaining popularity and research investment for developing light-driven micromotors. While most of the early work used highly stable TiO2 as a material to construct micromotors, mostly in ...
Mechanism of palladium-catalyzed allylic substitution of tertiary allylic carbonates with sodium sulfinates: unusual bifunctional nucleophile-enabled inner-sphere pathway and origin of regio- and enantioselectivities
Palladium-catalyzed allylic sulfonylation of tertiary allylic carbonates with sodium sulfinates provides a first general asymmetric approach towards the synthesis of sterically encumbered α,α-disubstituted allylic sulfones. ...
Self-Degradable Photoactive Micromotors for Inactivation of Resistant Bacteria
Pathogenic bacteria pose a significant threat to human health, and their removal from food and water supplies is crucial in preventing the spread of waterborne and foodborne diseases. Recently, silver-based photocatalytic ...
Photochemical Organocatalytic Synthesis of Thioethers from Aryl Chlorides and Alcohols
Thioethers, often found in pharmaceuticals and natural compounds, typically involve metal cross-coupling reactions, high temperatures, and the use of disagreeable thiols for their synthesis. Here we present a straightforward, ...
Toward the Understanding of the Structure–Activity Correlation in Single-Site Mn Covalent Organic Frameworks for Electrocatalytic CO2 Reduction
The encapsulation of organometallic complexes into reticular covalent organic frameworks (COFs) represents an effective strategy for the immobilization of molecular electrocatalysts. In particular, well-defined polypyridyl ...
Binding of Acetylated Lysine by Using a Water Soluble Aryl Extended Calix[4]pyrrole
Post-translational modifications of lysine in histones, as methylation and acetylation, have well established functions in epigenetics and are emerging as important actors in broader biological regulation. Currently, the ...
Quantitative Description of Metal Center Organization and Interactions in Single-Atom Catalysts
Ultra-high-density single-atom catalysts (UHD-SACs) present unique opportunities for harnessing cooperative effects between neighboring metal centers. However, the lack of tools to establish correlations between the density, ...
Monodentate versus Bidentate Anchoring Groups in Self-Assembling Molecules (SAMs) for Robust p–i–n Perovskite Solar Cells
Current improvement in perovskite solar cells (PSCs) has been achieved by interface engineering and fine-tuning of charge-selective contacts. In this work, we report three novel molecules that can form self-assembled layers ...
Ni-Catalyzed 1,2-Alkyl Borylation and Silylation of Allenes En Route to [1,3]-Bis-Organometallic Reagents
A nickel-catalyzed multicomponent reaction that rapidly and reliably accesses [1,3]-bis-organometallic reagents from allenes is reported. The protocol exhibits a predictable regioselectivity pattern that enables the ...
A computational search of the ideal metal fragment for monohapto coordination of dihydrogen
Sigma complexes containing η2-H2 ligands, with both hydrogen atoms interacting with the metal center and with each other, are well known nowadays. The possibility of η1-H2 coordination, with only one hydrogen atom interacting ...
Pt/MnO Interface Induced Defects for High Reverse Water Gas Shift Activity
The implementation of supported metal catalysts heavily relies on the synergistic interactions between metal nanoparticles and the material they are dispersed on. It is clear that interfacial perimeter sites have outstanding ...
Solution-based Cu+ transient species mediate the reconstruction of copper electrocatalysts for CO2 reduction
Understanding metal surface reconstruction is of the utmost importance in electrocatalysis, as this phenomenon directly affects the nature of available active sites. However, its dynamic nature renders surface reconstruction ...
Structure and Electronic Properties of Large Oligomeric Heterometallic 3d/CeIV Polyoxometalates
Merging the rich chemistry of Ce(IV) polyoxometalates (POMs) with that of 3d polyanions remains a challenge due to the strong competition between these highly oxophilic lanthanide cations and 3d metallic ions for coordination ...
Regiodivergent sp3 C–H Functionalization via Ni-Catalyzed Chain-Walking Reactions
The catalytic translocation of a metal catalyst along a saturated hydrocarbon side chain constitutes a powerful strategy for enabling bond-forming reactions at remote, yet previously unfunctionalized, sp3 C–H sites. In ...
Synthesis and Characterization of U≡C Triple Bonds in Fullerene Compounds
Despite decades of efforts, the actinide–carbon triple bond has remained an elusive target, defying synthesis in any isolable compound. Herein, we report the successful synthesis of uranium–carbon triple bonds in carbide-bridged ...
Ring Walking Mediated by Ni–Ni Species as a Vehicle for Enabling Distal C(sp2)–H Functionalization of Aryl Pivalates
Herein, we report the utilization of Ni–Ni species as a manifold for enabling a “ring-walking” event by dynamic translocation of the metal center over the arene backbone. Experimental and computational studies support a ...
