Results 121 to 130 of about 415,174 (326)

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

open access: yesAdvanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz   +5 more
wiley   +1 more source

Development of High‐Performance Multilayer Monochromators

open access: yesAdvanced Optical Materials, EarlyView.
Detailed insights into the optical and multilayer design of Double Multilayer Monochromators (DMM) are presented and fully characterized, including key optimization strategies and solutions to fabrication challenges. By integrating in‐house Ion Beam Figuring and a high uniformity multilayer coating process, the developed DMMs achieve high reflectivity,
Wadwan Singhapong   +11 more
wiley   +1 more source

Secondary Coordination Sphere‐Directed Design of Thermo‐Responsive and Bright Luminescent Manganese(II) Complexes

open access: yesAdvanced Optical Materials, EarlyView.
Luminescent manganese(II) complexes with modified secondary coordination spheres exhibit remarkably high emission quantum yields and distinct chromic behavior. The introduction of steric and functional groups enhances emission efficiency and enables temperature dependent emission color changes through reversible intramolecular interactions in the ...
Masaki Yoshida   +7 more
wiley   +1 more source

Synthesis of Polycyclic Oxazolinium Compounds from Aryloxazolines and Alkynes via Dual Photoredox/Gold Catalysis and Rhodium Catalysis

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
A series of polycyclic oxazolinium compounds is synthesized from various aryloxazolines with silyl‐substituted alkynes and internal alkynes via dual photoredox/gold catalysis and Rh‐catalyzed C–H bond functionalization, and affords silyl‐substituted polycyclic oxazoliniums and polycyclic oxazoliniums, respectively.
Lai‐Yi Tsang   +7 more
wiley   +1 more source

5,7‐Membered Cyclometallated Gold(III) Complexes with Pyridine‐Phenyl‐Oxazoline N^C^N Ligands as Catalysts for Organic Transformation Reactions Under Silver‐Free Conditions

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
A series of 5,7‐membered cyclometallated gold(III) complexes with N^C^N tridentate ligands are prepared via transmetalation of pyridine‐phenyl‐oxazoline ligand‐containing organomercury compounds with potassium gold(III) chloride (KAuCl4) for catalysis.
Yosephine Tania Limanto   +4 more
wiley   +1 more source

Molecular Actuator: Redox-Controlled Clam-Like Motion in a Bichromophoric Electron Donor [PDF]

open access: yes, 2009
The one-electron oxidation of tetramethoxydibenzobicyclo[4.4.1]undecane (4) prompts it to undergo a clam-like electromechanical actuation into a cofacially π-stacked conformer as established by (i) electrochemical analysis, (ii) by the observation of the
Chebny, Vincent J.   +3 more
core   +1 more source

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