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Cationic Polyhedral Chalcogenaboranes: Activation without breaking Wade's Rules.
Angew Chem Int Ed Engl
January 2025
University Pardubice Faculty of Chemical Technology: Univerzita Pardubice Fakulta Chemicko-Technologicka, Department of General and Inorganic Chemistry, CZECHIA.
Wade's rules are a well-established tool for the description of the geometry of inorganic clusters. Among others, they state that a decrease or increase in charge is always accompanied by a change in the number of skeletal electron pairs (SEPs). This work reports the synthesis of the first cationic chalcogenaboranes closo-[12-X-2-IPr-1-EB11H10]BF4 (X = H, I; E = S, Se 3a/b, 4a/b) featuring the same SEP count as their neutral precursors, EB11H11, but bearing a positive charge.
View Article and Find Full Text PDFReactivity of Wet scCO toward Reservoir and Caprock Formations under Elevated Pressure and Temperature Conditions: Implications for CCS and CO-Based Geothermal Energy Extraction.
Energy Fuels
January 2025
Geothermal Energy and Geofluids Group, Institute of Geophysics, Department of Earth and Planetary Sciences, ETH Zurich, Zurich 8092, Switzerland.
Carbon capture and storage (CCS) and CO-based geothermal energy are promising technologies for reducing CO emissions and mitigating climate change. Safe implementation of these technologies requires an understanding of how CO interacts with fluids and rocks at depth, particularly under elevated pressure and temperature. While CO-bearing aqueous solutions in geological reservoirs have been extensively studied, the chemical behavior of water-bearing supercritical CO remains largely overlooked by academics and practitioners alike.
View Article and Find Full Text PDFImpact of angiotensin receptor neprilysin inhibitor on serum C-peptide levels in patients with type 2 diabetes.
Diabetol Int
January 2025
First Department of Medicine, Wakayama Medical University, 811‑1 Kimi‑idera, Wakayama, 641‑8509 Japan.
Sacubitril/valsartan, an angiotensin receptor neprilysin inhibitor (ARNI), is becoming more common in the treatment of heart failure and hypertension. Neprilysin is highly expressed in the renal tubules, and reports have shown increases in urinary C-peptide reactivity (CPR) levels after administration of ARNI. However, the effect of ARNI on serum CPR levels, a critical marker of insulin secretion in diabetes, remains underexplored.
View Article and Find Full Text PDFUnraveling the Role of Water in Isothermal Methanol Partial Oxidation to Methyl Formate on Gold: A Combined Experimental and Computational Study.
J Phys Chem C Nanomater Interfaces
January 2025
Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany.
Since water is both a product and a common reactant impurity in the (partial) methanol oxidation to methyl formate (MeFo) on gold, its effect on the isothermal selectivity to methyl formate was investigated under well-defined single-collision conditions employing pulsed molecular beam experiments and in situ IRAS measurements. Both a flat Au(111) and a stepped Au(332) surface were used as model catalysts to elucidate how water affects the reactivity of low-coordinated step sites as compared to (111) terrace sites employing a range of reaction conditions. The interactions of water with methanol/methoxy as well as with oxygen species are addressed.
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