Results 131 to 140 of about 83,288 (300)

Sunlight‐Driven Green Synthesis of Platinum Nanoparticles From Double‐Vacancy Halide Perovskite Precursors for Methanol Reforming

open access: yesChemistry – A European Journal, EarlyView.
ABSTRACT The development of synthetic procedures for preparing metal nanoparticles with controlled size using sunlight opens new avenues toward more sustainable methods with lower energy consumption. Herein, we propose the use of double‐vacancy halide perovskites as precursors for engineering highly crystalline and small platinum nanoparticles (< 3 nm)
Kevin Mego   +4 more
wiley   +1 more source

Alkene Hydrogenation by a Cationic, Nine‐Coordinate Molybdenum(VI) Pentahydride Catalyst

open access: yesChemistry – A European Journal, EarlyView.
While late 3d metals dominate efforts to replace precious metals in homogeneous hydrogenation, molybdenum has remained largely ignored. This work reveals that a nine‐coordinate pentahydrido molybdenum complex can hydrogenate a broad range of alkenes efficiently, demonstrating that early‐metal polyhydrides can serve as genuine catalysts rather than mere
Arno Estival   +9 more
wiley   +1 more source

A High Energy Barrier DyIII2 Single‐Molecule Magnet Supported by a Bulky, Anionic N–O Bridging Ligand

open access: yesChemistry – A European Journal, EarlyView.
Complex [Dy2(hynad)2(dbm)4] was prepared by the employment of the anionic N–O‐based bridging and chelating N‐hydroxy‐1,8‐naphthalimide ligand, featuring a {Dy2(µ‐OR)2}4+ core and exhibiting zero‐field SMM behavior with a Ueff value of 171 K and double‐S‐shaped hysteresis loops, open up to 3.5 K.
Alexandros S. Armenis   +6 more
wiley   +1 more source

Green Electrochromic Film Formation via Phenylcarbazole Polymerization in Ionic Liquids

open access: yesChemistry – A European Journal, EarlyView.
The scheme depicts the three‐step electropolymerization of two electrochromic polycarbazole derivatives, 4‐(9H‐carbazol‐9‐yl)phenol and 4‐(3‐methoxy‐9H‐carbazol‐9‐yl)phenol, performed at constant potential using the green ionic liquid BMIM TFSI. This medium enables controlled polymer growth and enhances electrochromic performance, yielding robust and ...
Carolina Gascó   +3 more
wiley   +1 more source

Breaking the Mold: Electrophilic Hydrophosphanation Emerges

open access: yesChemistry – A European Journal, EarlyView.
Electrophilic hydride attack on the olefin, instead of the classical nucleophilic addition by a phosphanido ligand, is unveiled in rhodium‐catalyzed olefin hydrophosphanation. This hydride‐driven pathway operates for both activated and inactivated olefins, with transition states characterized by elongated Rh─H bonds and nascent C─H bond formation ...
Víctor Varela‐Izquierdo   +4 more
wiley   +1 more source

RETRACTED: Melendez et al. Experimental and DFT Study of the Photoluminescent Green Emission Band of Halogenated (-F, -Cl, and -Br) Imines. <i>Molecules</i> 2019, <i>24</i>, 3304. [PDF]

open access: yesMolecules
Melendez FJ   +8 more
europepmc   +1 more source

Cation‐Directed Host–Guest Assembly and Reversible Wheel to Cluster Interconversion in a 20‐Molybdate System

open access: yesChemistry – A European Journal, EarlyView.
The polyoxo‐20‐molybdate(VI) wheel [MoVI20O60{AsO2(CH3)2}12]12− (Mo20) can be prepared with or without a central guest in a controlled, cation‐directed fashion. When Mo20 is dissolved in water, it exhibits an immediate, quantitative, and fully reversible solution transformation to a tetranuclear Mo4 cluster, which transforms in the solid state again to
Arun Pal   +12 more
wiley   +1 more source

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