Chemistry - An Asian Journal最新文献_第3页

Manganese- Mediated Cascade Radical Oxidative Cyclization/1,6-Conjugate Addition of Unsaturated Oximes with p-Quinone methides: Facile Access to β,β-Diarylmethine Isoxazolines. 锰介导的不饱和肟与对醌甲酰胺的级联自由基氧化环化/1,6-共轭加成：β,β-二甲基异噁唑烷的简便获取。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-11-09 DOI: 10.1002/asia.202401079

M Muthukrishnan, Kishor Thete, Vijay Vara, Ganesh Ghotekar

引用次数: 0

Cuproptosis: A Copper-Mediated Programmed Cell Death. 铜中毒铜介导的细胞程序性死亡

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-11-09 DOI: 10.1002/asia.202400934

Radhika Meena, Suman Sekhar Sahoo, Andria Sunil, Debasish Manna

{"title":"Cuproptosis: A Copper-Mediated Programmed Cell Death.","authors":"Radhika Meena, Suman Sekhar Sahoo, Andria Sunil, Debasish Manna","doi":"10.1002/asia.202400934","DOIUrl":"https://doi.org/10.1002/asia.202400934","url":null,"abstract":"It has been found that various heavy metals can initiate different types of regulated cell deaths. Among these metals, copper, an essential trace micronutrient that plays a major role in a lot of physiological processes, also can initiate cell death. It can act as a constituent of metalloenzymes, and can act as a mediator for signaling pathways to regulate proliferation and metastasis of tumor. It is also an integral part of some metal-based anticancer drugs. Recent studies have revealed that excessive intracellular copper accumulation leads to the aggregation of mitochondrial lipoylated proteins, causing proteotoxic stress and ultimately resulting in cell death. This newly discovered copper-induced cell death is termed as cuproptosis. In the last few, a lot of research has been done to understand the mechanism of copper-mediated cell death, and attempts have also been made to identify the relationship between cuproptosis and the development of cancer. In this review, we provide a comprehensive overview on the significance of copper, its regulation inside the body, the possible mechanism of cuproptosis, and how this cuproptosis can be employed as a therapeutic tool for cancer ablation.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202400934"},"PeriodicalIF":3.5,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142613336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

FeCoNi-based Alloy Coatings as Low Overpotential Electrocatalysts for Alkaline Water Electrolysis. 作为碱性水电解低过电位电催化剂的铁钴镍基合金涂层

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-11-08 DOI: 10.1002/asia.202401086

Jinyuan Zhong, Yuanwu Zhang, Xiaoran Huo, Xiaojiao Zuo, Hongjun Huang, Xuelu Xu, Nannan Zhang

{"title":"FeCoNi-based Alloy Coatings as Low Overpotential Electrocatalysts for Alkaline Water Electrolysis.","authors":"Jinyuan Zhong, Yuanwu Zhang, Xiaoran Huo, Xiaojiao Zuo, Hongjun Huang, Xuelu Xu, Nannan Zhang","doi":"10.1002/asia.202401086","DOIUrl":"https://doi.org/10.1002/asia.202401086","url":null,"abstract":"Developing efficient, stable and low-cost electrocatalysts is a viable approach to solve the current energy crisis. It is found that increasing the surface area of the electrodes can effectively promote the electrocatalytic efficiency. Herein, the atmospheric plasma spraying (APS) technology was used to prepare FeCoNi-Ni3C alloy coating by adding Ni3C powder to FeCoNi powder with an equal molar ratio. The atomic ratios of Ni3C in the powder are 25 %, 50 %, and 75 %, respectively. The results prove that the pores on the surface of the coating have increased after Ni3C doping, which can provide more active sites in the electrocatalytic process to promote the electrocatalytic reaction. By controlling the proportion of Ni3C, the porosity of the coating surface can be effectively regulated. In 1.0 M KOH electrolyte and 10 mA cm-2, the 50 at.% Ni3C coating shows an overpotential of 105 mV and 212 mV for HER and OER, respectively. It is worth noting that the 50 at.% Ni3C coating has a low Tafel slope of 45.78 mV dec-1 (HER) and 44 mV dec-1 (OER). Furthermore, the 50 %at. Ni3C coating catalyst has a low potential of 1.664 V at 10 mA cm-2 in a water-splitting system.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202401086"},"PeriodicalIF":3.5,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142613311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Carbones – A Classification on the Magnetic Criterion 碳——磁准则的一种分类。

IF 4.1 3区化学

Chemistry - An Asian Journal Pub Date : 2023-11-15 DOI: 10.1002/asia.202300826

Prof. Dr. Erich Kleinpeter, Dr. Andreas Koch

{"title":"Carbones – A Classification on the Magnetic Criterion","authors":"Prof. Dr. Erich Kleinpeter, Dr. Andreas Koch","doi":"10.1002/asia.202300826","DOIUrl":"10.1002/asia.202300826","url":null,"abstract":"Carbones (carbodiphosphoranes, bent allenes and chalcogen-stabilized carbones) bear the same resonance contributor X+−C2−−Y+ (X+, Y+=PR3+, CR2+, SR2+, SeR2+, S+R2=NR) and exhibit unique bonding and donating properties at the central carbon atom. A classification is given on basis of both the geometry and the magnetic properties (13C chemical shift of the central carbon atom and the spatial magnetic properties, through-space NMR shieldings (TS NMRSs), actually the anisotropy effect or the ring current effect of aromatic species). TS NMRS values have been calculated using the GIAO perturbation method employing the nucleus independent chemical shift (NICS) concept and the results visualized as iso-chemical-shielding surfaces (ICSS) of various size and direction. The synergy of geometry (linear or bent, orthogonal or twisted structures) and NMR characteristics (extend of the high field shift of the central carbon atom, anisotropy effect of the allene-like C=C double bonds or the ball-like anisotropy effect of carbone-like central carbon atom) provides a comprehensive picture of the dominating resonance contributor.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"19 2","pages":""},"PeriodicalIF":4.1,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/asia.202300826","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"107589813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent Progress on Durable Metal-N-C Catalysts for Proton Exchange Membrane Fuel Cells 质子交换膜燃料电池用耐用金属- n - c催化剂研究进展。

IF 4.1 3区化学

Chemistry - An Asian Journal Pub Date : 2023-11-15 DOI: 10.1002/asia.202300862

Hao-Ran Wu, Miao-Ying Chen, Wei-Dong Li, Assoc. Prof. Bang-An Lu

{"title":"Recent Progress on Durable Metal-N-C Catalysts for Proton Exchange Membrane Fuel Cells","authors":"Hao-Ran Wu, Miao-Ying Chen, Wei-Dong Li, Assoc. Prof. Bang-An Lu","doi":"10.1002/asia.202300862","DOIUrl":"10.1002/asia.202300862","url":null,"abstract":"It is essential for the widespread application of proton exchange membrane fuel cells (PEMFCs) to investigate low-cost, extremely active, and long-lasting oxygen reduction catalysts. Initial performance of PGM-free metal-nitrogen-carbon (M−N−C) catalysts for oxygen reduction reaction (ORR) has advanced significantly, particularly for Fe−N−C-based catalysts. However, the insufficient stability of M−N−C catalysts still impedes their use in practical fuel cells. In this review, we focus on the understanding of the structure-stability relationship of M−N−C ORR catalysts and summarize valuable guidance for the rational design of durable M−N−C catalysts. In the first section of this review, we discuss the inherent degrading mechanisms of M−N−C catalysts, such as carbon corrosion, demetallation, H2O2 attack, etc. As we gain a thorough comprehension of these deterioration mechanisms, we shift our attention to the investigation of strategies that can mitigate catalyst deterioration and increase its stability. These strategies include enhancing the anti-oxidation of carbon, fortifying M−N bonds, and maximizing the effectiveness of free radical scavengers. This review offers a prospective view on the enhancement of the stability of non-noble metal catalysts.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"19 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"107589814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

One-Flow Synthesis of Substituted Indoles via Sequential 1,2-Addition/Nucleophilic Substitution of Indolyl-3-Carbaldehydes 吲哚-3-羧基顺序1,2加成/亲核取代一流合成取代吲哚。

IF 4.1 3区化学

Chemistry - An Asian Journal Pub Date : 2023-11-14 DOI: 10.1002/asia.202300909

Prof. Dr. Shinichiro Fuse, Sena Kanda, Dr. Hisashi Masui

引用次数: 0

Synthesis of β-Hydroxysulfides via Multi-Component Cascade Hydroxysulfenylation of Styrenes with NH4SCN and Water under Transition-metal-free Conditions 无过渡金属条件下苯乙烯与NH4SCN和水的多组分级联羟基磺化合成β-羟基硫化物。

IF 4.1 3区化学

Chemistry - An Asian Journal Pub Date : 2023-11-14 DOI: 10.1002/asia.202300901

Xian Liu, Liqiang Hao, Yangyang Wang, Yafei Ji

引用次数: 0

Lanthanide Phosphonates and Phosphates in Molecular Magnetism 分子磁学中的镧系磷酸盐和磷酸盐。

IF 4.1 3区化学

Chemistry - An Asian Journal Pub Date : 2023-11-14 DOI: 10.1002/asia.202300812

Junaid Ali, Pawan Kumar, Vadapalli Chandrasekhar

引用次数: 0

MolNet_Equi: A Chemically Intuitive, Rotation-Equivariant Graph Neural Network MolNet_Equi:一个化学上直观的，旋转等变图神经网络。

IF 4.1 3区化学

Chemistry - An Asian Journal Pub Date : 2023-11-12 DOI: 10.1002/asia.202300684

Jihoo Kim, Yoonho Jeong, Prof. Won June Kim, Prof. Eok Kyun Lee, Prof. Insung S. Choi

{"title":"MolNet_Equi: A Chemically Intuitive, Rotation-Equivariant Graph Neural Network","authors":"Jihoo Kim, Yoonho Jeong, Prof. Won June Kim, Prof. Eok Kyun Lee, Prof. Insung S. Choi","doi":"10.1002/asia.202300684","DOIUrl":"10.1002/asia.202300684","url":null,"abstract":"Although deep-learning (DL) models suggest unprecedented prediction capabilities in tackling various chemical problems, their demonstrated tasks have so far been limited to the scalar properties including the magnitude of vectorial properties, such as molecular dipole moments. A rotation-equivariant MolNet_Equi model, proposed in this paper, understands and recognizes the molecular rotation in the 3D Euclidean space, and exhibits the ability to predict directional dipole moments in the rotation-sensitive mode, as well as showing superior performance for the prediction of scalar properties. Three consecutive operations of molecular rotation \u0000, dipole-moment prediction \u0000, and dipole-moment inverse-rotation \u0000 do not alter the original prediction of the total dipole moment of a molecule \u0000, assuring the rotational equivariance of MolNet_Equi. Furthermore, MolNet_Equi faithfully predicts the absolute direction of dipole moments given molecular poses, albeit the model has been trained only with the information on dipole-moment magnitudes, not directions. This work highlights the potential of incorporating fundamental yet crucial chemical rules and concepts into DL models, leading to the development of chemically intuitive models.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"19 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2023-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89716200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-Safety Lithium-Ion Batteries with Silicon-Based Anodes Enabled by Electrolyte Design 电解液设计实现硅基阳极高安全性锂离子电池。

IF 4.1 3区化学

Chemistry - An Asian Journal Pub Date : 2023-11-12 DOI: 10.1002/asia.202300820

Kangjia Hu, Xiaoyu Sang, Jiaxin Chen, Zetong Liu, Jiahui Zhang, Prof. Xianluo Hu

{"title":"High-Safety Lithium-Ion Batteries with Silicon-Based Anodes Enabled by Electrolyte Design","authors":"Kangjia Hu, Xiaoyu Sang, Jiaxin Chen, Zetong Liu, Jiahui Zhang, Prof. Xianluo Hu","doi":"10.1002/asia.202300820","DOIUrl":"10.1002/asia.202300820","url":null,"abstract":"High-energy-density lithium-ion batteries (LIBs) with high safety have long been pursued for extending the cruise range of electric vehicles. Owing to the high gravimetric capacity, silicon is a promising alternative to the convention graphite anode for high-energy LIBs. However, it suffers from intrinsic poor interfacial stability with liquid electrolytes, inevitably increasing the risk of thermal runaway and posing serious safety challenges. In this review, we will focus on mitigating thermal runaway of silicon anodes-based LIBs from the perspective of electrolyte design. First, the thermal runaway mechanism of LIBs is briefly introduced, while the specific thermal failure reactions associated with silicon anodes and electrolytes are discussed in detail. We then summarize the safety countermeasures (e. g., thermally stable solid electrolyte interphase, nonflammable electrolytes, highly stable lithium salts, mitigating electrode crosstalk, and solid-state electrolytes) enabled by customized electrolyte design to address these triggers of thermal runaway. Finally, the remaining unanswered questions regarding the thermal runaway mechanism are presented, and future directions to achieve intrinsically safe electrolytes for silicon-based anodes are prospected. This review is expected to provide insightful knowledge for improving the safety of LIBs with silicon-based anodes.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"18 24","pages":""},"PeriodicalIF":4.1,"publicationDate":"2023-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89716199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0