Results 81 to 90 of about 23,430 (289)

Nickel‐Free Synthesis of Poly(pyrene‐4,5,9,10‐tetraone) for Sodium‐based Batteries: Insights into Electrode Architecture and Reversible Na‐ion Insertion

Advanced Energy Materials, EarlyView.
A nickel‐free and practical synthesis strategy to poly(pyrene tetraone) and its integration with a percolated CNTs/Ketjen Black network enables stable cycling and efficient energy storage in a sodium‐based batteries. This work demonstrates how controlling polymer structure and electrode architecture improves ion transport and mitigates dissolution in ...
Md. Adil, Robin Wessling, Nico Kokott, Elena Mena‐Osteritz, Benedikt Prifling, Markus Osenberg, Thomas Diemant, Volker Schmidt, Ingo Manke, Birgit Esser   +9 more
wiley   +1 more source

Substrate‐Controlled Enantiodivergence in Ni‐Catalyzed Access to Phosphorylated Oxindoles With Quaternary Stereocenters

Angewandte Chemie, EarlyView.
An efficient, enantiodivergent synthesis of phosphorylated oxindoles with quaternary stereocenters is achieved via a nickel‐catalyzed intermolecular Heck‐phosphorylation cascade. Employing a single chiral catalyst, either product enantiomer is selectively accessed simply by changing the alkene leaving group. DFT calculations trace this stereodivergence
Haimeng Zhu, Lewen Wang, Shihui Luo, Xinglong Zhang, Jun (Joelle) Wang   +4 more
wiley   +2 more sources

4-(3-Methoxyphenyl)-2,6-dimethylcyclohex-3-enecarboxylic acid

Acta Crystallographica Section E, 2010
The racemic title compound, C16H20O3, was synthesized to study the hydrogen-bonding interaction of the two enantiomers in the solid state. In the crystal structure, R and S pairs of the racemate are linked by pairs of intermolecular O—H...O ...
Songwen Xie, Dannette A. Nusbaum, Holly J. Stein, Maren Pink   +3 more
doaj   +1 more source

Nucleation behaviour of racemic and enantiopure histidine

, 2021
International audienceNucleation of DL-and L-histidine is examined using induction time measurements and their nucleation rates have been deduced. Results indicate a much slower nucleation for the racemic form compared to the pure enantiomer form.
Coquerel, Gérard, Rietveld, Ivo B., Clevers, Simon, Harfouche, Lina, C   +3 more
core   +1 more source

Chiral Molecular Configuration‐Mediated Crystallization of Perovskites for High‐Performance Solar Cells

Advanced Energy Materials, EarlyView.
In this work, we propose a chiral stereo‐anchoring strategy to modulate the colloidal evolution and crystallization behavior of FAPbI3 perovskites via stereochemical molecular design, which effectively regulates nucleation kinetics and promotes ordered crystal growth.
Runkang Wang, Yujie Zhu, Jiaxue You, Yunfan Wang, Jiarong Wu, Jinghao Ge, Pengda Tong, Shilong Jia, Xiaogang Wang, Yiran Tao, Hao‐Chung Kuo, Adel Najar, Lu Zhang, Yuanhao Gong, Shengzhong (Frank) Liu   +14 more
wiley   +1 more source

Direct δ‐Lactone Synthesis From Free Alcohols via Photoinduced δ‐C(sp3)–H Carbonylation in Flow

Angewandte Chemie, EarlyView.
Herein, we have developed a photo‐flow platform for the δ‐C(sp3)─H carbonylative lactonization of free alcohols with carbon monoxide. The transformation integrates alkoxyl radical generation, selective 1,5‐HAT, CO incorporation, and radical–polar crossover to enable direct access to δ‐lactones from simple alcohol precursors.
Prakash Chandra Tiwari, Runkang Liu, Timothy Noël   +2 more
wiley   +2 more sources

rac-8a'-Methyl-3′,4′,8′,8a'-tetrahydro-2′H-spiro[[1,3]dioxolane-2,1′-naphthalen]-6′(7′H)-one

Acta Crystallographica Section E, 2011
The title racemic compound, C13H18O3, a common precursor in the total synthesis of terpenes, crystallizes with two molecules in the asymmetric unit.
Franz Werner, Liina Toon, Riina Aav
doaj   +1 more source

quasi-racemic compound

, 2014
Citation: 'quasi-racemic compound' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.Q05001 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Accelerating Discovery of Organic Molecular Crystals via Materials Informatics and Autonomous Experiments

Advanced Intelligent Discovery, EarlyView.
Materials informatics and autonomous experimentation are transforming the discovery of organic molecular crystals. This review presents an integrated molecule–crystal–function–optimization workflow combining machine learning, crystal structure prediction, and Bayesian optimization with robotic platforms.
Takuya Taniguchi, Kazuki Ishizaki, Ryo Fukasawa   +2 more
wiley   +1 more source

Enantioselective Synthesis of a New Class of Stable and Functionalized Cyclopentadienes via CuH‐Catalysis

Angewandte Chemie, EarlyView.
Cyclopentadienes (CpHs) are fundamental building blocks with widespread applications in chemistry. However, their inherent acidity and isomeric instability have long limited access to chiral variants in an asymmetric fashion. Here, we introduce a CuH‐catalyzed asymmetric transformation that provides an unprecedented entry into a new class of ...
Piero Soppelsa, Riccardo Bellin, Besma Boulila, Francesco Vaghi, Manuel Orlandi   +4 more
wiley   +2 more sources