Institut Català d'Investigació Química (ICIQ): Enviaments recents
Ara mostrant els elements 1-20 de 1240
Charting the influence of deuterium sources in hydrogen isotope exchange using a cobalt(III) catalytic platform
Directed hydrogen isotope exchange strategies have become an essential tool for accessing isotopically labelled organic scaffolds and interrogating the mechanisms of transition metal-catalysed C–H activation. However, the ...
Solvent-free crosslinking of Hydroxypropyl cellulose via esterification: Towards green bioplastics
Resource depletion, waste management, and climate change drives innovation towards bioplastics. Among the renewable cellulose derivatives, hydroxypropyl cellulose (HPC) stands out for its biocompatibility, ease of processing, ...
Cu–ZnO Core–Shell Structures for CO2 Hydrogenation to Methanol: Insights into Reactivity and Deactivation under High-Pressure Conditions
Methanol is a valuable chemical energy carrier and C1 feedstock, with significant research efforts directed toward its production via CO2 hydrogenation. Here, we report a surfactant-free, non-aqueous synthesis of Cu–ZnO ...
Site-Selective Peptide and Protein Functionalization with Cyclopropenium Cations
In the realm of organic chemistry, carbocations play a pivotal role as highly reactive intermediates in the synthesis of complex molecules. While cyclase enzymes construct terpenoid natural products through carbocation ...
Domino Synthesis of Functionalized Cyclic Acetals From Organic Carbonates
We report a method for the base-mediated transformation of ether-tethered acrylic ester-based cyclic carbonates into functionalized cyclic acetals. The protocol builds on the use of hydroxyalkyl-substituted cyclic carbonates ...
Multi-modal contrastive learning for chemical structure elucidation with VibraCLIP
Identifying molecular structures from vibrational spectra is central to chemical analysis but remains challenging due to spectral ambiguity and the limitations of single-modality methods. While deep learning has advanced ...
Dual Catalytic Enantioconvergent Carbamoylation of Aziridines
Herein, we disclose an enantioconvergent carbamoylation of racemic aziridines enabled by a dual catalytic strategy. The method offers a new entry point to highly enantioenriched β-amino amides from simple precursors and ...
Reducing rotatable bonds in one substrate accelerates a bimolecular Diels–Alder reaction in a bis-calix[4]pyrrole cage
We report the quantitative self-assembly of an endohedrally functionalized octa-imine cage from two calix[4]pyrrole scaffolds via dynamic covalent chemistry. The cavity combines size and shape complementarity with enzyme-like ...
Carbonate anions and radicals induce interfacial water ordering in CO2 electroreduction on gold
Interfacial hydration layers critically determine energy and chemical conversion processes, notably influencing the kinetics of electrocatalytic reactions. Fundamental mechanisms of reactions such as CO2 electroreduction ...
A thorough assessment of mineral carbonation of steel slag and refractory waste
Escalating industrial CO2 emissions necessitate innovative carbon capture and utilization strategies. This study explores the potential of mineral-carbonation of steelmaking slags, particularly White Slag (WS) and various ...
Introduction to Digital Catalysis
Catalysis Science & Technology, Evgeny Pidko and Núria López would like to acknowledge Weixue Li for their contributions to the Digital Catalysis themed collection as a Guest Editor. This article is part of the themed ...
Polyethylene hydrogenolysis to liquid products over bimetallic catalysts with favorable environmental footprint and economics
Assessing the sustainability of plastic chemical recycling requires realistic feedstocks and catalysts designed within sustainability-led frameworks (Plastic-to-X). We link catalyst design and systems analysis to study ...
EDA Complex-Driven Desaturation of Heterocyclic Carbonyl Compounds Enabled by HFIP
Recently, electron donor–acceptor (EDA) complex-mediated organic synthetic strategies have emerged as powerful tools for diverse bond-forming transformations; however, their efficiency often diminishes when ionic reactants ...
A Guide to Recognizing Your Electrochemical Impedance Spectra: Revisions of the Randles Circuit in (Bio)sensing
Electrochemical impedance spectroscopy (EIS) is a highly versatile electrochemical technique capable of discretizing each electrochemical parameter in complex systems by employing a broad frequency spectrum. When EIS is ...
Enabling a Diversity-Oriented Catalytic Atom Looping of a Biobased Polycarbonate
Herein, it is demonstrated that biobased poly(menthene carbonate) (PMC) can be conveniently used to enable catalysis-promoted atom looping thereby creating functionalized synthons and new types of repolymerizable monomers. ...
Mechanistic Insights into the Light-Driven Difunctionalization of Alkenes with a Sulfonyl-Based Reagent: A Catalyst-Free Approach
Visible-light-mediated difunctionalization of nonactivated alkenes offers a sustainable and efficient strategy for constructing diverse molecular frameworks relevant to medicinal chemistry, polymer science, and synthesis ...
Conformational change-based electrochemical biosensor for the simple and highly selective detection of miRNA in whole serum
MicroRNAs (miRNAs) have emerged as powerful biomarkers for early-stage disease detection and prognosis support. However, their reliable quantification in complex biological fluids remains a significant challenge. Here, we ...
Autonomous catalysis research with human–AI–robot collaboration
Catalysis is essential to modern chemical manufacturing and environmental sustainability. Yet, traditional catalyst discovery remains slow, resource-intensive and constrained by human-centred trial-and-error workflows. The ...
The case against hole injection through SAMs in perovskite solar cells
Self-assembled molecules (SAMs) are widely used as hole-selective contacts in perovskite solar cells (PSCs). They are traditionally designed to facilitate charge injection by aligning their highest occupied molecular orbital ...
Unraveling the Dichotomy Exerted by Boron Reagents in Site-Selective Functionalization of C(sp2)– and C(sp3)–OMe Bonds
Although C(sp2)– and C(sp3)–OMe bonds are arguably the simplest and most atom-economical derivatives in the alcohol series, these linkages have rarely been utilized as coupling partners in the context of metal-catalyzed ...
