Institut Català d'Investigació Química (ICIQ): Enviaments recents
Ara mostrant els elements 101-120 de 1286
Proton Relay Catalysis Enables the Synthesis of 2-Oxa- and 2-Azabicyclo[2.2.1]heptanes
An effective binary catalytic system enables the synthesis of oxa- and aza-bicyclo[2.2.1]heptanes from cyclic γ-epoxy-alcohols. A combination of an aminotriphenolate Al(III) complex and a bromide salt delivers a wide variety ...
Light-Driven Chemical Cascade Reduces Barriers to Hydrogen Production
Photocatalysis offers an opportunity for sustainable hydrogen and chemical production. Traditional systems require semiconductors with very specific conduction-band (CB) properties and expensive noble metal cocatalysts, ...
Rh-catalysed single-carbon insertion to 1,3-dienes
Herein, we report the first catalytic single-carbon insertion to 1,3-dienes with Rh(II)-carbynoids. The skeletal editing process is based on the catalytic generation of a Rh-carbynoid that promotes the insertion of a ...
Uncovering Polyoxometalate Speciation in Hydrothermal Systems by Combining Computational Simulation with X-ray Total Scattering
A systematic approach for understanding the pH-dependent speciation of molecular metal-oxide nanoclusters beyond ambient conditions, which combines computational predictions with X-ray total scattering experiments, is ...
Application of Naphthalenediimide Derivatives as Self-Assembled Electron Selective Contacts in CdSe@ZnS Quantum Dots LEDs
Despite the successful application of self-assembled molecules (SAMs) as hole-selective contacts in light-emitting diodes (LEDs), examples of the use of electron-selective SAMs are scarce. Here, we investigate the potential ...
Unraveling Charge Transport in Heterostructured Nanomotors for Efficient Photocatalytic Motion
Photocatalytic micro/nanomotors have emerged as promising tools for environmental remediation, biosensing, and targeted delivery. To enhance their light-driven propulsion, significant efforts have focused on engineering ...
Role of the π-System in Fe-Porphyrins for CO2 Reduction Catalysis
Iron porphyrins are extensively utilized as molecular catalysts in the electrocatalytic CO2 reduction reaction (CO2RR). While current research primarily investigates the impact of peripheral substitution and second ...
Flash Communication: Challenging Computational Description of Gold(I)/Gold(III) Catalytic Cycles
We have investigated the mechanism of cross-coupling reactions catalyzed by gold(I) complexes without the assistance of chelating ligands. Following pioneering studies by Kochi, gold(I) complexes with simple alkyl phosphines ...
Synthesis and depolymerization studies of biohybrid polycarbonates derived from terpenes
We here report the catalytic ring-opening copolymerization of 2-menthene oxide (MO), a terpene-based monomer derived from L-menthol, and CO2 to provide poly(menthene carbonate), PMC, with a maximum molecular weight (Mn) ...
Tracking life and death of carbon nitride supports in platinum-catalyzed vinyl chloride synthesis
Deactivation of metal-based catalysts for vinyl chloride synthesis via acetylene hydrochlorination is often dictated by indispensable, catalytically-active carbon supports, but underlying mechanisms remain unclear. Carbon ...
Capping the Electronic Lone Pair of the As(III) Central Atom in the Keggin-Type Anion: From Experimental–Theoretical Interplay to Evidence
The stereochemistry of the polycondensation processes within the Keggin-type derivatives is mainly governed by the nature of the assembly group X, being either tetrahedral or trigonal. Commonly, the use of trigonal units ...
Encapsulated Co–Ni alloy boosts high-temperature CO2 electroreduction
Electrochemical CO2 reduction into chemicals and fuels holds great promise for renewable energy storage and carbon recycling1,2,3. Although high-temperature CO2 electroreduction in solid oxide electrolysis cells is ...
Pd-Catalyzed Photoinduced Interceptive Decarboxylative Allylation
Herein, we describe a photoinduced Pd-catalyzed interceptive decarboxylative allylation of allyl esters. Our protocol provides a new gateway to enable atom pair swaps or a series of contractions and elongations, thus ...
SPOCK Tool for Constructing Empirical Volcano Diagrams from Catalytic Data
Volcano plots, stemming from the Sabatier principle, visualize descriptor–performance relationships, allowing rational catalyst design. Manually drawn volcanoes originating from experimental studies are potentially prone ...
Revealing the Role of Spacer Length and Methoxy Substitution of Dipodal Indolocarbazole-based SAMs on the Performance of Inverted Perovskite Solar Cells
The application of self-assembled molecules (SAMs) as selective charge transport layers in inverted perovskite solar cells (iPSCs) has attracted significant interest because of their ability to provide high-efficiency and ...
Low-Cost Wireless Device for DNA Sensing Using Square Wave Voltammetry
This paper presents a low-cost wireless prototype designed for point-of-care DNA sensing based on square wave voltammetry (SWV) measurements. Unlike other designs found in the literature, this prototype employs dedicated ...
Discotic amphiphilic supramolecular polymers for drug release and cell activation with light
The limited efficacy shown by drug delivery systems so far prompts the development of new molecular approaches for releasing drugs in a controlled and selective manner. Light is a privileged stimulus for delivery because ...
Molecular Anodes for Electrocatalytic Water Oxidation Based on Self-Assembled Bilayers Driven by Electron Transfer Mediators
The generation of solar fuels via water splitting with sunlight requires, among others, robust and efficient electrodes for the water oxidation reaction. For this purpose, the combination of powerful molecular catalysts ...
Photoinduced nickel-catalysed enantioconvergent sp3–sp3 coupling of unactivated olefins and aziridines
Catalytic sp3–sp3 bond-forming reactions have been the subject of considerable interest in both academic and pharmaceutical laboratories. This is largely due to the observation that a higher content of sp3-hybridized carbons ...
Selective adsorption of CO2 in TAMOF-1 for the separation of CO2/CH4 gas mixtures
TAMOF-1 is a robust, highly porous metal–organic framework built from Cu2+ centers linked by a L-histidine derivative. Thanks to its high porosity and homochirality, TAMOF-1 has shown interesting molecular recognition ...
