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“#New materials of perovskite challenge traditional notions of high pressure chemistry” Chemical intuition tells us that pressure tends to increase number of coordination, and hence usually makes a structure ordered that is especially true for perovskite like compounds. However, in the recent discovered Y2CoIrO6 a A2B’B”O6 type double perovskite compound, researchers found exceptional pressure induced…
“#Emergence of chirality and structural complexity in single crystals at the molecular and morphological levels” Scanning electron microscopy (SEM) images of the yo-yo-like, single crystals having a multidomain appearance. Each side of the yo-yo resembles a daisy flower. Credit: Weizmann Institute of Science Imagine trying to build a Colosseum-type edifice—including arches, vaults and various protrusions—while…
“#Researchers find large linear negative thermal expansion in intermetallic Cr-Se-Te compounds” Temperature dependence of volume changes of Cr-Te-Se with different compositions. Credit: ZHENG Xinqi Researchers used a variable temperature X-ray diffractometer (XRD) at China’s Steady High Magnetic Field Facility (SHMFF) under Hefei Institutes of Physical Science and have found large linear negative thermal expansion in…
“#Scientists develop N-doped self-cleaning membranes that use visible light irradiation” Schematic diagram of N-TiO2 and TiO2 coated membrane preparation and mechanism of visible-light-activated photocatalysis for fouling mitigation. Credit: ZHANG Huiru Researchers from the Institute of Process Engineering (IPE) of the Chinese Academy of Sciences and Argonne National Laboratory in the U.S. have recently employed atomic…
“#Decoding material wear with supercomputers” A small piece of metal is simulated on a computer—atom by atom. Credit: TU Wien Wear and friction are crucial issues in many industrial sectors: What happens when one surface slides across another? Which changes must be expected in the material? What does this mean for the durability and safety…
“#Researchers access both enantiomers by varying reaction time” Figure 1. Strategies for obtaining both enantiomers of chiral molecules. Credit: SIOC Homochirality is a fundamental feature of all living organism. It is well known that a pair of enantiomers of chiral drug molecules, whose structures have a non-superimposable mirror-image relationship to each other, will probably exert…
“#Newly designed ligands for a catalytic reaction to synthesize drugs and useful compounds” Tetrasubstituted chromanones are useful for drug design, but an effective strategy for their generation has been lacking until now. Credit: Gwangju Institute of Science and Technology Currently, various therapeutic compounds on the market, such as proteins, enzymes, and amino acids, are ‘chiral…
“#Life-emulating molecules show basic metabolism” Work from the Otto-lab has resulted in a chemical system that shows different properties of life. Through oxidation, basic building blocks join to form rings of different sizes (left, middle and top). Eventually, rings of six building blocks (16) form stacks. These stacks grow, and multiply by breaking, leading to…
“#Support grows for sustainable method for manufacturing composite fiberboard” Purdue University researchers have developed a lower-cost, sustainable and greener method for producing composite boards — a method that is already seeing growing support from major industry players. Credit: Chris Adam/Purdue University Composite binders are important materials used in furniture, flooring and other consumer products, but…
“#An electrocatalyst for oxygen evolution reaction in water splitting” Atomic QTAIM basins of platinum and aluminium (transparent) and Al-Pt bond basin (red) in the Al2Pt compound, revealing the pronounced charge transfer from Al to Pt atoms and polar character of Al-Pt atomic interactions. Credit: © MPI CPfS The transition from fossil fuels to renewable energy…