Institut Català d'Investigació Química (ICIQ): Envíos recientes
Mostrando ítems 321-340 de 1286
Narrow band gap cuprous/cupric oxide thin films prepared via sol-gel methods for the electrochemical reduction of CO2
A convenient method for preparing cupric and cuprous oxide thin films from a common sol-gel approach is described. The method consists in depositing a thin film of a copper nitrate precursor embedded in a hydroxypropyl ...
Comproportionation and disproportionation in nickel and copper complexes
Disproportionation and comproportionation reactions have become increasingly important electron transfer events in organometallic chemistry and catalysis. The renewed interest in these reactions is in part attributed to ...
α-Difluoroalkylation of Benzyl Amines with Trifluoromethylarenes
A highly modular technique that streamlines the synthesis of α-difluoroalkylated amines from benzyl amines and trifluoromethylarenes has been developed. This protocol demonstrates remarkable operational simplicity, excellent ...
Selective C-H Bond Functionalization of Unprotected Indoles by Donor-Acceptor Carbene Insertion
Copper catalysts containing alkoxydiaminophosphine (ADAP) ligand catalyze the selective C3−H functionalization of unprotected indoles upon carbene transfer from donor-acceptor diazo compounds, the N−H bond remaining unaltered ...
Influence of Cations on HCOOH and CO Formation during CO2 Reduction on a PdMLPt(111) Electrode
Understanding the role of cations in the electrochemical CO2 reduction (CO2RR) process is of fundamental importance for practical application. In this work, we investigate how cations influence HCOOH and CO formation on ...
Laser-induced nitrogen fixation
For decarbonization of ammonia production in industry, alternative methods by exploiting renewable energy sources have recently been explored. Nonetheless, they still lack yield and efficiency to be industrially relevant. ...
Bubble-Propelled Micromotors for Ammonia Generation
Micromotors have emerged as promising tools for environmental remediation, thanks to their ability to autonomously navigate and perform specific tasks at the microscale. In this study, we present the development of MnO2 ...
Multi-Time-Scale Simulation of Complex Reactive Mixtures: How Do Polyoxometalates Form?
Understanding the dynamics of reactive mixtures still challenges both experiments and theory. A relevant example can be found in the chemistry of molecular metal-oxide nanoclusters, also known as polyoxometalates. The high ...
A new series of bioactive Mo(V)2O2S2-based thiosemicarbazone complexes: Solution and DFT studies, and antifungal and antioxidant activities
This paper deals with the synthesis, characterization, and studies of biological properties of a series of 5 coordination compounds based on binuclear core [MoV2O2S2]2+ with thiosemicarbazones ligands bearing different ...
Manipulating Intermetallic Charge Transfer for Switchable External Stimulus-Enhanced Water Oxidation Electrocatalysis
Electrocatalytic processes involving the oxygen evolution reaction (OER) present a kinetic bottleneck due to the existence of linear-scaling relationships, which bind the energies of the different intermediates in the ...
Novel Spiro-Core Dopant-Free Hole Transporting Material for Planar Inverted Perovskite Solar Cells
Hole-transporting materials (HTMs) have demonstrated their crucial role in promoting charge extraction, interface recombination, and device stability in perovskite solar cells (PSCs). Herein, we present the synthesis of a ...
A survey of Earth-abundant metal oxides as oxygen evolution electrocatalysts in acidic media (pH < 1)
Electrolytic hydrogen appears as one of the most promising options to store renewable energy. In this water splitting process, the sluggish kinetics of the 4-electron oxygen evolution reaction (OER) with its high overpotentials ...
Reaction-Induced Metal-Metal Oxide Interactions in Pd-In2O3/ZrO2 Catalysts Drive Selective and Stable CO2 Hydrogenation to Methanol
Ternary Pd-In2O3/ZrO2 catalysts exhibit technological potential for CO2-based methanol synthesis, but developing scalable systems and comprehending complex dynamic behaviors of the active phase, promoter, and carrier are ...
Magnetic and electrical bistability in hybrid composites of conducting organic polymers with [Fe(NH2-trz)3]n[SO4]n
Spin crossover (SCO) species hold significant potential as versatile building blocks for multifunctional hybrid materials. In our recent work, we introduced a novel postsynthetic mechanochemical processing approach to ...
Late-Stage Aryl C−H Bond Cyclopropenylation with Cyclopropenium Cations
Herein, we disclose the first regio-, site- and chemoselective late-stage (hetero)aryl C−H bond cyclopropenylation with cyclopropenium cations (CPCs). The process is fast, operationally simple and shows an excellent ...
Cluster Preface: Special Issue Honoring Masahiro Murakami’s Contributions to Science
Ruben Martin (left) was born in Barcelona in 1976. After receiving his PhD at the Universitat de Barcelona with Prof. Antoni Riera, he moved in January 2004 to the Max-Planck-Institut für Kohlenforschung, Mülheim, as a ...
TAMOF-1 as a Versatile and Predictable Chiral Stationary Phase for the Resolution of Racemic Mixtures
Metal–organic frameworks (MOFs) have become promising materials for multiple applications due to their controlled dimensionality and tunable properties. The incorporation of chirality into their frameworks opens new ...
Gold(I)-Catalyzed1,6-Enyne Single-Cleavage Rearrangements:The Complete Picture
We identify the factors that rule the selectivity in single-cleavage skeletal rearrangements promoted by gold(I) catalysts. We find that stereoconvergence is enabled by a rotational equilibrium when electron-rich substituents ...
Gold(I)-Catalyzed Intermolecular Aryloxyvinylation with Acetylene Gas
Acetylene gas is an important feedstock for chemical production, although it is underutilized in organic synthesis. We have developed an intermolecular gold(I)-catalyzed alkyne/alkene reaction of o-allylphenols with acetylene ...
Synthesis and characterization of highly diluted polyanionic iron(II) spin crossover systems
Spin crossover (SCO) complexes, through their reversible spin transition under external stimuli, can work as switchable memory materials. Here, we present a protocol for the synthesis and characterization of a specific ...
