Water and Air Stable Copper(I) Complexes of Tetracationic Catenane Ligands for Oxidative C-C Cross-Coupling
Angew Chem Int Ed Engl. 2024 Apr 25:e202405971. doi: 10.1002/anie.202405971. Online ahead of print.ABSTRACTAqueous soluble and stable Cu(I) molecular catalysts featuring a catenane ligand composed of two dicationic, mutually repelling but mechanically interlocked macrocycles are reported. The ligand interlocking not only fine-tunes the coordination sphere and kinetically stabilizes the Cu(I) against air oxidation and disproportionation, but also buries the hydrophobic portions of the ligands and prevents their dissociation which are necessary for their good water solubility and a sustained activity. These catenane Cu(I) co...
Source: Angewandte Chemie - April 25, 2024 Category: Chemistry Authors: Man Pang Tang Lihui Zhu Yulin Deng Yixiang Shi Samuel Kin-Man Lai Xiaoyong Mo Xin-Yu Pang Chunyu Liu Wei Jiang Edmund Chun Ming Tse Ho Yu Au-Yeung Source Type: research
Revealing Na+-coordination Induced Failure Mechanism of Metal Sulfide Anode for Sodium Ion Batteries
Angew Chem Int Ed Engl. 2024 Apr 25:e202403463. doi: 10.1002/anie.202403463. Online ahead of print.ABSTRACTMetal sulfide (MS) is regarded as a promising candidate of the anode materials for sodium-ion battery (SIB) with ideal capacity and low cost, yet still suffers from the inferior cycling stability and voltage degradation. Herein, the coordination relationship between the discharge product Na2S with the Na+ (NaPF6) in the electrolyte, is revealed as the root cause for the cycling failure of MS. Na+-coordination effect assistants the dissolution of Na2S, further delocalizing Na2S from the reaction interface under the fun...
Source: Angewandte Chemie - April 25, 2024 Category: Chemistry Authors: Yuchen Fu Jun Sun Yunsheng Zhang Wei Qu Weichao Wang Meng Yao Yun Zhang Qian Wang Yongfu Tang Source Type: research
Template-guided Silicon Micromotor Assembly for Enhanced Cell Manipulation
Angew Chem Int Ed Engl. 2024 Apr 25:e202405895. doi: 10.1002/anie.202405895. Online ahead of print.ABSTRACTLight-driven micro/nanorobots (LMNRs) are tiny, untethered machines with great potential in fields like precision medicine, nano manufacturing, and various other domains. However, their practicality hinges on developing light-manipulation strategies that combine versatile functionalities, flexible design options, and precise controllability. Our study introduces an innovative approach to construct micro/nanorobots (MNRs) by utilizing micro/nanomotors as fundamental building blocks. Inspired by silicon Metal-Insulator-...
Source: Angewandte Chemie - April 25, 2024 Category: Chemistry Authors: Yuxin Gao Leyan Ou Kunfeng Liu Yuan Guo Wanyuan Li Ze Xiong Changjin Wu Jizhuang Wang Jinyao Tang Dan Li Source Type: research
Planar Tetranuclear Uranium Hydride Cluster Supported by ansa-Bis(cyclopentadienyl) Ligands
Angew Chem Int Ed Engl. 2024 Apr 25:e202405494. doi: 10.1002/anie.202405494. Online ahead of print.ABSTRACTPolynuclear metal hydride clusters play important roles in various catalytic processes, with most of the reported polynuclear metal hydride clusters adopting a polyhedral three-dimensional structure. Herein, we report the first example of a planar tetranuclear uranium hydride cluster [(CpCMe2CMe2Cp)U]4(μ2-H)4(μ3-H)4 (U4H8). It was synthesized by reacting an ansa-bis(cyclopentadienyl) ligand-supported uranium chloride precursor [(CpCMe2CMe2Cp)U]3(μ2-Cl)3(μ3-Cl)2 with NaHBEt3. The presence of hydrides in U4H8 was co...
Source: Angewandte Chemie - April 25, 2024 Category: Chemistry Authors: Kai Li Iker Del Rosal Yue Zhao Laurent Maron Congqing Zhu Source Type: research
Design of Solid Polycationic Electrolyte to Enable Durable Chloride-Ion Batteries
Angew Chem Int Ed Engl. 2024 Apr 25:e202405750. doi: 10.1002/anie.202405750. Online ahead of print.ABSTRACTThe high energy density and cost-effectiveness of chloride-ion batteries (CIBs) make them promising alternatives to lithium-ion batteries. However, the development of CIBs is greatly restricted by the lack of compatible electrolytes to support cost-effective anodes. Herein, we present a rationally designed solid polycationic electrolyte (SPE) to enable room-temperature chloride-ion batteries utilizing aluminum (Al) metal as an anode. This SPE endows the CIB configuration with improved air stability and safety (i.e. fr...
Source: Angewandte Chemie - April 25, 2024 Category: Chemistry Authors: Xu Yang Zhiqiang Fu Ran Han Yaojie Lei Shijian Wang Xin Zhao Yuefeng Meng Hao Liu Dong Zhou Doron Aurbach Guoxiu Wang Source Type: research
Grain-Boundary-Rich RuO2 Porous Nanosheet for Efficient and Stable Acidic Water Oxidation
Angew Chem Int Ed Engl. 2024 Apr 24:e202405798. doi: 10.1002/anie.202405798. Online ahead of print.ABSTRACTRuO2 has been considered as the most likely acidic oxygen evolution reaction (OER) catalyst to replace IrO2, but its performance, especially long-term stability under harsh acidic conditions, is still unacceptable. Here, we propose a grain boundary (GB) engineering strategy by fabricating the ultrathin porous RuO2 nanosheet with abundant of grain boundaries (GB-RuO2) as an efficient acid OER catalyst. The involvement of GB induces significant tensile stress and creates an unsaturated coordination environment, effectiv...
Source: Angewandte Chemie - April 25, 2024 Category: Chemistry Authors: Weidong He Xiaohong Tan Yingying Guo Yuhang Xiao Hao Cui Chengxin Wang Source Type: research
Rechargeable Zn-H2O hydrolysis battery for hydrogen storage and production
Angew Chem Int Ed Engl. 2024 Apr 24:e202404025. doi: 10.1002/anie.202404025. Online ahead of print.ABSTRACTReactive metals hydrolysis offers significant advantages for hydrogen storage and production. However, the regeneration of common reactive metals (e.g., Mg, Al, etc.) is energy-intensive and produces unwanted byproducts such as CO2 and Cl2. Herein, we employ Zn as a reactive mediator that can be easily regenerated by electrolysis of ZnO in an alkaline solution with a Faradaic efficiency of > 99.9%. H2 is produced in the same electrolyte by constructing a Zn-H2O hydrolysis battery consisting of a Zn anode and a Rane...
Source: Angewandte Chemie - April 25, 2024 Category: Chemistry Authors: Muya Cai Hao Shi Yu Zhang Jiakang Qu Hongya Wang Yanyang Guo Kaifa Du Wei Li Bowen Deng Dihua Wang Huayi Yin Source Type: research
Rapid Defect Engineering in FeCoNi/FeAl2O4 Hybrid for Enhanced Oxygen Evolution Catalysis: A Pathway to High-Performance Electrocatalysts
This study harnesses ultrasonic cavitation for rapid and controlled introduction of different types of defects in FeCoNi/FeAl2O4 hybrid coatings, optimizing OER catalytic activity. Theoretical calculations and experiments demonstrate that the different defects optimize the coordination environment and facilitate the activation of surface reconstruction into true catalytic activity centers at lower potentials. Moreover, it demonstrates exceptional durability, maintaining stable oxygen production at a high current density of 300 mA cm-2 for over 120 hours. This work not only presents a novel pathway for designing advanced el...
Source: Angewandte Chemie - April 25, 2024 Category: Chemistry Authors: Yuhao Chen Jiang Xu Yujie Chen Luqi Wang Shuyun Jiang Zong-Han Xie Tianran Zhang Paul Munroe Shengjie Peng Source Type: research
A Universal Self-Propagating Synthesis of Aluminum-Based Oxyhalide Solid-State Electrolytes
Angew Chem Int Ed Engl. 2024 Apr 24:e202401373. doi: 10.1002/anie.202401373. Online ahead of print.ABSTRACTInorganic solid-state electrolytes (SSEs) play a vital role in high-energy all-solid-state batteries (ASSBs). However, the current method of SSE preparation usually involves high-energy mechanical ball milling and/or a high-temperature annealing process, which is not suitable for practical application. Here, a facile strategy is developed to realize the scalable synthesis of cost-effective aluminum-based oxyhalide SSEs, which involves a self-propagating method by the exothermic reaction of the raw materials. This stra...
Source: Angewandte Chemie - April 25, 2024 Category: Chemistry Authors: Simeng Zhang Yang Xu Han Wu Tianlu Pang Nian Zhang Changtai Zhao Junyi Yue Jiamin Fu Shengjie Xia Xiangzhen Zhu Guanzhi Wang Hui Duan Biwei Xiao Tao Mei Jianwen Liang Xueliang Sun Xiaona Li Source Type: research
New Alkalescent Electrolyte Chemistry for Zinc-Ferricyanide Flow Battery
Angew Chem Int Ed Engl. 2024 Apr 24:e202403607. doi: 10.1002/anie.202403607. Online ahead of print.ABSTRACTAlkaline zinc-ferricyanide flow batteries are efficiency and economical as energy storage solutions. However, they suffer from low energy density and short calendar life. The strongly alkaline conditions (3 mol L-1 OH-) reduce the solubility of ferri/ferro-cyanide (normally only 0.4 mol L-1 at 25 oC) and induce the formation of zinc dendrites at the anode. Here, we report a new zinc-ferricyanide flow battery based on a mild alkalescent (pH 12) electrolyte. Using a chelating agent to rearrange ferri/ferro-cyanide ion-s...
Source: Angewandte Chemie - April 25, 2024 Category: Chemistry Authors: Liping Zhi Chenyi Liao Pengcheng Xu Fusai Sun Fengtao Fan Guohui Li Zhizhang Yuan Xianfeng Li Source Type: research
Bifunctional Ligand Enables Gold-Catalyzed Propargyl C-H Functionalization via Reactive Gold Allenylidene Intermediate
Angew Chem Int Ed Engl. 2024 Apr 25:e202402286. doi: 10.1002/anie.202402286. Online ahead of print.ABSTRACTGold allenylidene species have been seldom exploited as reactive intermediates in synthetically versatile catalytic reactions. By employing alkynylbenziodoxoles as the substrates and bifunctional WangPhos as the metal ligand, this work demonstrated ready catalytic access to these intermediates of general substitution patterns and their electrophilic reactivities at the γ-carbon center with a diverse range of nucleophiles. The reaction is driven by the reductive decomposition of the benziodoxole moiety and achieves th...
Source: Angewandte Chemie - April 25, 2024 Category: Chemistry Authors: Yongliang Wei Jingxing Jiang Yaru Jing Zhuofeng Ke Liming Zhang Source Type: research
Tunable Interfacial Electric Field-Mediated Cobalt-Doped FeSe/Fe3Se4 Heterostructure for High-Efficiency Potassium Storage
Angew Chem Int Ed Engl. 2024 Apr 25:e202405648. doi: 10.1002/anie.202405648. Online ahead of print.ABSTRACTThe interfacial electric field (IEF) in the heterostructure can accelerate electron transport and ion migration, thereby enhancing the electrochemical performance of potassium-ion batteries (PIBs). Nevertheless, the quantification and modulation of the IEF for high-efficiency PIB anodes currently remains a blank slate. Herein, we achieve for the first time the quantification and tuning of IEF via amorphous carbon-coated undifferentiated cobalt-doped FeSe/Fe3Se4 heterostructure (denoted UN-CoFe4Se5/C) for efficient pot...
Source: Angewandte Chemie - April 25, 2024 Category: Chemistry Authors: Lili Song Shilin Zhang Liping Duan Renke Li Yifan Xu Jiaying Liao Liang Sun Xiaosi Zhou Zaiping Guo Source Type: research
Corrigendum: Ultralight Ultrafast Enzymes
Angew Chem Int Ed Engl. 2024 Apr 25:e202401264. doi: 10.1002/anie.202401264. Online ahead of print.NO ABSTRACTPMID:38660814 | DOI:10.1002/anie.202401264 (Source: Angewandte Chemie)
Source: Angewandte Chemie - April 25, 2024 Category: Chemistry Source Type: research
Giorgio Olivo
Angew Chem Int Ed Engl. 2024 Apr 25:e202406422. doi: 10.1002/anie.202406422. Online ahead of print.ABSTRACT""The most challenging part of my job is sustaining the motivation of my team through unlucky times… The most important thing I have learned from my students is that breakthrough ideas in a project can come from everyone, and hence listening to everyone is essential…" Find out more about Giorgio Olivo in his Introducing… Profile.PMID:38660820 | DOI:10.1002/anie.202406422 (Source: Angewandte Chemie)
Source: Angewandte Chemie - April 25, 2024 Category: Chemistry Source Type: research
Kinetic Control of Complexity in Multiple Dynamic Libraries
Angew Chem Int Ed Engl. 2024 Apr 25:e202406654. doi: 10.1002/anie.202406654. Online ahead of print.ABSTRACTMultiple dynamic libraries of compounds are generated when more than one reversible reaction comes into play. Commonly, two or more orthogonal reversible reactions are used, leading to non-communicating dynamic libraries which share no building blocks. Only a few examples of communicating libraries have been reported, and in all those cases, building blocks are reversibly exchanged from one library to the other, constituting an antiparallel dynamic covalent system. Herein we report that communication between two diffe...
Source: Angewandte Chemie - April 25, 2024 Category: Chemistry Authors: David S Rivero Yaiza P érez-Pérez Marcelle D Perretti Tanaus ú Santos Jimena Scoccia David Tejedor Romen Carrillo Source Type: research
