Results 81 to 90 of about 28,089 (235)
NiH‐Catalyzed Enantio‐ and Regioselective Hydroselenylation of Unactivated Alkenes
Advanced Science, EarlyView.Nickel‐hydride‐catalyzed enantio‐ and regioselective hydroselenylation of unactivated alkenes provides access to chiral organoselenium compounds. Enantiodetermining Ni–H insertion followed by single‐electron diselenide activation generates selenyl radical.
Hyung‐Joon Kang +2 more
wiley +1 more source
Enantioselective Access to Trifluoromethylated Spirocyclopropyl Heterocycles
Advanced Science, EarlyView.We report a rhodium‐catalyzed asymmetric [2+1] spirocyclopropanation of methylene azacycles with trifluoromethyl carbenes in situ derived from fluoroalkyl triftosylhydrazones. ABSTRACT Chiral spirocyclopropyl heterocycles have emerged as privileged three‐dimensional structural motifs in medicinal chemistry.
Yuanhao Zhu +9 more
wiley +1 more source
A pentanuclear iridium(III) hydride cluster: aggregation of an iridium(I) precatalyst
Acta Crystallographica Section E: Crystallographic CommunicationsThe crystal structure of a unique pentanuclear Ir cluster, tetrakis[1,3-bis(2,4,6-trimethylphenyl)-1,3-dihydro-2H-imidazol-2-ylidene-κC2]carbonyldi-μ3-hydrido-tetra-μ2-hydrido-nonahydridopentairidium(III), [Ir5(μ3-H)2(μ2-H)4H9(C21H24N2)4(CO)], has been ...
Ben. J. Tickner +4 more
doaj +1 more source
Advanced Science, EarlyView.Controlled Pt–Pt fine structure in square‐planar Pt(II) complexes governs metal–metal‐to‐ligand charge‐transfer (MMLCT) state formation, exciton dynamics, and organic light‐emitting diode performance. Short Pt–Pt contacts in Pt(fppz)2 enable coherent metal–metal coupling, sub‐microsecond emission and an external quantum efficiency of 29%, whereas ...
Atul Shukla +15 more
wiley +1 more source
Materials engineering of metal hydrides [PDF]
, 1981 Intermetallic hydrides of the AB/sub 5/ type have enthalpies in the range valid for chemical heat pumps. A scheme for manufacturing hydrides with optimal properties for a chemical heat pump is described, using LaNi/sub 5-x/Al/sub x/ and ZrV/sub 2x/Cr/sub
Mendelsohn, M. H., Gruen, D. M.
core
Dual Nickel/Photoredox‐Catalyzed Regio‐ and Enantioselective Alkenylation of Epoxides
Advanced Science, EarlyView.Ni/photoredox‐catalyzed stereoconvergent cross‐electrophile coupling of racemic epoxides with alkenyl bromides is described, affording β‐alkenyl products with up to 95% ee, excellent E‐selectivity, and complete regiocontrol. These versatile intermediates enable diverse chiral synthons; mechanistic studies suggest a halide ring‐opening followed by ...
Hongyan Lan +4 more
wiley +1 more source
First-principles study of structural stability and elastic properties of MgPd3 and its hydride
Journal of Magnesium and Alloys, 2014 Theoretical study of structural stability and elastic properties of α- and β-MgPd3 intermetallic compounds as well as their hydrides have been carried out based on density functional theory.
Dong-Hai Wu +4 more
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Tritium Separation Using Metal Hydrides [PDF]
, 2001 This paper discusses some of the metal hydride and intermetallic compounds which readily absorb the hydrogen gas by a simple contact to form metal hydrides.
Lee, M.W.
core
Advanced Science, EarlyView.Polymer‐based hydrogels have emerged as promising materials for atmospheric water harvesting (AWH) due to their high water affinity, tunable network structure, and excellent moisture adsorption‐desorption performance. Functional hydrogel systems enable efficient water capture and controlled release under low‐energy conditions, offering a sustainable ...
Swagata Datta +6 more
wiley +1 more source
Data-driven design of high pressure hydride superconductors using DFT and deep learning
Materials FuturesThe observation of superconductivity in hydride-based materials under ultrahigh pressures (for example, H _3 S and LaH _10 ) has fueled the interest in a more data-driven approach to discovering new high-pressure hydride superconductors. In this work, we
Daniel Wines, Kamal Choudhary
doaj +1 more source