Researchers found that graphene efficiently shields chemical interactions by covering surface defects, reducing reactivity. This shielding enables controlled selectivity and activity of supported metallic catalysts on carbon substrates.
A recent study by high school student Gleb Rukhovich reveals that autocatalysts in modern cars can break down, releasing toxic heavy metals into the environment. The study found that contact with water facilitates the aggregation of platinum and palladium salts into clusters, which exhibit higher toxicity than simple salts.
Researchers from Zelinsky Institute examine key features of routine analytic characterization, addressing common mistakes in NMR, EI-MS, and ESI-MS measurements. The study provides concise descriptions to achieve reliable measurements in various scientific fields.
Scientists found that nickel N-heterocyclic carbene (NHC) complexes decompose into initial reagent and nickel hydroxide when exposed to water. The rate of hydrolysis varies depending on the type of NHC ligand, with some complexes breaking down quickly while others remain stable for over a week.
A new palladium-based catalyst has been developed to efficiently convert thiols, the source of strong-smelling mercaptans, into stable and useful vinyl thioethers. The catalyst enables the atom-economic synthesis of these monomers with high yield and selectivity.
Scientists develop a novel drug delivery platform that combines ionic and covalent binding to improve the solubility and bioactivity of pharmaceutical ingredients. The approach uses ionic liquids as a key component, offering tunable hydrophobicity/lipophilicity, modulated ionic binding, and variable linkers for targeted release.
A team of scientists has discovered a method to produce valuable organic molecules from calcium carbide, a previously overlooked small molecule. The process eliminates the need for acetylene gas, a hazardous substance, and offers a safer, more sustainable alternative.
Gold compounds demonstrate novel reactivity, competing with traditional catalysts. Acetic acid serves as a proton shuttle, transferring hydrogen atoms between reaction centers.
Researchers introduced a procedure to visualize defects on graphene layers using a contrast agent, revealing organized patterns of defects. This imaging approach enables the visualization of chemical reactivity at the nanoscale.
Researchers have discovered an enzyme that catalyzes the formation of a natural insecticide, Spinosyn A, at lower temperatures than previously thought. The new mechanism reveals how the enzyme guides the substrate towards the transition state, resulting in a more energetically balanced reaction.