Results 191 to 200 of about 3,897,550 (347)

Biocatalytic Regioselective C‐Formylation of Resorcinol Derivatives

Angewandte Chemie, EarlyView.
An acyltransferase from Chromobacterium sphagni (CsATase) was identified that catalyzes the regioselective formylation of resorcinol substrates. The formylation of substituted resorcinol derivatives yielded mono‐formylated products with up to 99% conversion and up to 74% isolated yield.
Lilla Gal, Suresh Rohan, Anna Żądło‐Dobrowolska, Bianca Hilweg, Judith Müller, Kai Tittmann, Wolfgang Kroutil   +6 more
wiley   +2 more sources

Impact of Discharging Methods on Electrode Integrity in Recycling of Lithium‐Ion Batteries

Advanced Energy Materials, EarlyView.
Electrical and electrochemical discharge methods for end‐of‐life lithium‐ion batteries are compared. Electrochemical discharge better preserves the composition and layered structure of Ni‐rich cathode materials while minimizing residual lithium compounds.
Neha Garg, Viorica‐Alina Oltean, Daniel Brandell, Annukka Santasalo‐Aarnio   +3 more
wiley   +1 more source

Atroposelective Suzuki–Miyaura Coupling to Form 2‐Amino‐2′‐Hydroxybiphenyls Enabled by sRuPhos

Angewandte Chemie, EarlyView.
We report a new chiral phosphine ligand, sRuPhos, which permits the highly enantioselective Suzuki–Miyaura coupling of ortho‐aniline and ortho‐phenol building blocks. This results in 2‐amino‐2′‐hydroxybiphenyls with very high enantiomeric excesses, products that will have application in pharmaceutical synthesis and ligand design for catalysis ...
Hamzah Sharif, Luke A. McCall, Matthew G. Sanders, Robert J. Phipps   +3 more
wiley   +2 more sources

Addressing the Challenges of 3C‐SiC—Synergetic Effect of Conductive Additives on the Performance of SiC as Anode Material for Lithium‐Ion Batteries

Advanced Energy and Sustainability Research, EarlyView.
This study explores the role of conductive carbon black (CB) in enhancing the electrochemical activity of 3C‐SiC anodes for lithium‐ion batteries. By isolating the individual contributions of SiC and CB, the work demonstrates a synergistic effect that enables active lithiation in SiC, offering new insight into composite electrode design for improved ...
Teja Stüwe, Victoria Greussing, Thomas Weis, Bernhard M. Kriesche, Felix R. S. Purtscher, Bettina Friedel, Thomas S. Hofer, Engelbert Portenkirchner   +7 more
wiley   +1 more source

Automatic Determination of Quasicrystalline Patterns from Microscopy Images

Advanced Intelligent Discovery, EarlyView.
This work introduces a user‐friendly machine learning tool to automatically extract and visualize quasicrystalline tiling patterns from atomically resolved microscopy images. It uses feature clustering, nearest‐neighbor analysis, and support vector machines. The method is broadly applicable to various quasicrystalline systems and is released as part of
Tano Kim Kender, Marco Corrias, Cesare Franchini   +2 more
wiley   +1 more source

(Poly)Borylated Species as Modern Reactive Groups toward Unusual Synthetic Applications

Angewandte Chemie, EarlyView.
In this review, we spotlight recent breakthroughs in α‐polyboron‐substituted carbon‐centered intermediates (carbanion, carbocation, radical, and carbene) and polyborylated alkenes. By bridging fundamental reactivity with the application potential of these extraordinary species, we hope this review will serve as a roadmap for harnessing these unique ...
Nadim Eghbarieh, Nicole Hanania, Pinaki Nad, Tipu Alam, Tamir Kish, Ahmad Masarwa   +5 more
wiley   +2 more sources

Current status of microfocus X-ray sources for chemical and biological crystallography [PDF]

, 2016
J. Graf, Holger Ott, Tobias Stuerzer, Séverine Freisz, Andreas Kleine, Joerg Wiesmann, Carsten Michaelsen   +6 more
openalex   +1 more source

opXRD: Open Experimental Powder X‐Ray Diffraction Database

Advanced Intelligent Discovery, EarlyView.
We introduce the Open Experimental Powder X‐ray Diffraction Database, the largest openly accessible collection of experimental powder diffractograms, comprising over 92,000 patterns collected across diverse material classes and experimental setups. Our ongoing effort aims to guide machine learning research toward fully automated analysis of pXRD data ...
Daniel Hollarek, Henrik Schopmans, Jona Östreicher, Jonas Teufel, Bin Cao, Adie Alwen, Simon Schweidler, Mriganka Singh, Tim Kodalle, Hanlin Hu, Gregoire Heymans, Maged Abdelsamie, Arthur Hardiagon, Alexander Wieczorek, Siarhei Zhuk, Ruth Schwaiger, Sebastian Siol, François‐Xavier Coudert, Moritz Wolf, Carolin M. Sutter‐Fella, Ben Breitung, Andrea M. Hodge, Tong‐yi Zhang, Pascal Friederich   +23 more
wiley   +1 more source

Reimagining o‐Carborane‐Based Fluorophores: Charge‐Transfer from Boron Substituents Triggers Aggregation‐ and Crystallization‐Induced Emission

Angewandte Chemie, EarlyView.
This work reports, for the first time, aggregation‐ or crystallization‐induced emission in boron‐substituted carboranes, which was driven by photoinduced charge‐transfer from fluorophore attached via boron vertices. The emission properties can be tuned by varying the substituents, expanding design strategies for luminescent materials.
Balázs Szathmári, Yanhong Gao, Dániel Buzsáki, Dániel Zámbó, Tamás Holczbauer, Antal Udvardy, Pál Szabó, Júlia Kertész, Dóra Hessz, Zsolt Kelemen   +9 more
wiley   +2 more sources

Dual Circularly Polarized Luminescence from Chiral Boron‐Embedded Polycyclic Aromatic Hydrocarbons

Angewandte Chemie, EarlyView.
Boron‐embedded polycyclic aromatic hydrocarbons featuring an asymmetric boron center coordinated by a proximal P═O group were synthesized. Anthracene‐fused boracyclic derivatives show dual circularly polarized luminescence (CPL) arising from excited‐state P═O⋯B dissociation, which converts point chirality into C−B axial chirality.
Tatsuya Mori, Yoshiharu Sano, Tomoyuki Ikai, Yuuya Kawasaki, Katsuhiko Tomooka, Takahiro Sasamori, Shigehiro Yamaguchi   +6 more
wiley   +2 more sources