Chemistry - An Asian Journal最新文献_第4页

Front Cover: Unlocking the Photoluminescence and Photostability of Au11 Clusters through Pt-Mediated Band-Gap Engineering (Chem. Asian J. 6/2025) 封面：通过pt介导的带隙工程解锁Au11簇的光致发光和光稳定性（化学）。亚洲J. 6/2025)

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-03-18 DOI: 10.1002/asia.202580601

Benjamin Raufman, Dariush Aligholizadeh, Catherine Connolly, Dr. Allen G. Oliver, Dr. Maksym Zhukovskyi, Zaid S. Qureshi, Samantha Topka, Dr. Mary Sajini Devadas

引用次数: 0

Bi-Doped NiCo₂O₄ Catalyst for Electrocatalysis Glucose Oxidation Accompanied Hydrogen Generation. 双掺杂NiCo2O4催化剂电催化葡萄糖氧化伴氢生成。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-03-18 DOI: 10.1002/asia.202401811

Yi Xiong, Fengchao Sun, Liangbin Huang

{"title":"Bi-Doped NiCo2O4 Catalyst for Electrocatalysis Glucose Oxidation Accompanied Hydrogen Generation.","authors":"Yi Xiong, Fengchao Sun, Liangbin Huang","doi":"10.1002/asia.202401811","DOIUrl":"10.1002/asia.202401811","url":null,"abstract":"The slow dynamics of oxygen evolution reaction and the use of the proton exchange membrane have been troubling the hydrogen production from electrolytic water splitting. Reducing the electrolytic voltage and avoiding the utilization of proton exchange membranes are crucial targets for electrolytic hydrogen evolution. Bi-doped NiCo2O4 catalyst is prepared and applied in electrocatalysis glucose oxidation coupled hydrogen generation. Structural characterizations confirm the successful preparation of NiCo2O4 and the existence of Bi. Bi leads to the electrons transfer from Co to Ni, increasing the content of Co3+, and lowers the oxidation potential of Co. Electrochemical experiments indicate that NiCo2O4-Bi has good electrocatalytic activity and stability toward electrochemical glucose oxidation, with a potential of 1.13 V vs RHE at 10 mA cm-2 current density. The asymmetric electrolysis of two electrodes requires just 1.26 V to achieve a 10 mA cm-2 current density. The design of NiCo2O4-Bi is an exploration for electrocatalytic glucose oxidation coupled hydrogen production with low voltage and no proton exchange membrane.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143646679","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

Asymmetric Diradical Made By π-Core Modification: Comparisons with Its Symmetric Parents. π核修饰制备的不对称双自由基及其对称母体的比较。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-03-18 DOI: 10.1002/asia.202500267

Shengqing Jiang, Hanjun Zhang, Hao Luo, Bo Han, Sergio Moles Quintero, Fanxi Sun, Dongsheng Wang, Juan Casado, Yonghao Zheng

{"title":"Asymmetric Diradical Made By π-Core Modification: Comparisons with Its Symmetric Parents.","authors":"Shengqing Jiang, Hanjun Zhang, Hao Luo, Bo Han, Sergio Moles Quintero, Fanxi Sun, Dongsheng Wang, Juan Casado, Yonghao Zheng","doi":"10.1002/asia.202500267","DOIUrl":"https://doi.org/10.1002/asia.202500267","url":null,"abstract":"Asymmetric conjugated diradicals are much less common than their symmetric counterparts because they expand the feasibility of symmetry, but they also present some detrimental aspects. Hence, stud-ies comparing analogue symmetric and asymmetric diradicals are of interest. Previous studies regard-ing the structure of asymmetric conjugated diradicals only focused on analyzing different radical moie-ties attached to the same π-core bridge, while none of them explored the diradicals with asymmetric π-core (same radical moieties). Herein, we report a series of azine derivatives PNP-n (n=1-3). The symmetric diradicals PNP-1 and PNP-3 have a π-core comprising two benzenes or two thiophene units linked to a central azine, respectively. Replacing a benzene unit with thiophene in symmetric PNP-1 diradical yields the asymmetric PNP-2 diradical altering the energy gap and the spin-spin coupling strengths thus modulating the diradical characteristic. This work highlights the advantages and incon-veniences of moving from symmetric to asymmetric diradicals, as well as providing a molecular de-scription of the intrinsic properties of ones and others made of similar chemical compositions.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202500267"},"PeriodicalIF":3.5,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143655639","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

Cover Feature: A Review on Biomass-Derived Carbon Quantum Dots: Emerging Catalysts for Hydrogenation Catalysis (Chem. Asian J. 6/2025) 封面专题：生物质衍生碳量子点综述：用于加氢催化的新兴催化剂（《亚洲化学杂志》6/2025）

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-03-18 DOI: 10.1002/asia.202580602

Ripsa Rani Nayak, Hafila Khairun S., Gazala Parveen, Ayesha Garg, Yulia A. Chumachenko, Riyang Shu, Navneet Kumar Gupta

引用次数: 0

All-Carbon Quaternary Center Containing Tetrahydro-5H-benzo[c]fluorenes via Highly Stereoselective Transannular Carbocation Cyclization. 高立体选择性跨环碳正离子环化制备含四氢五氢苯并芴[c]

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-03-17 DOI: 10.1002/asia.202500300

Kasam Poonswat, Sineenart Attanonchai, Paratchata Batsomboon, Chatphorn Theppitak, Kittipong Chainok, Somsak Ruchirawat, Poonsakdi Ploypradith

引用次数: 0

Metal-free Cross-Dehydrogenative Coupling for α-Arylation of 3-Aryloxindoles. 3-芳氧酮α-芳基化的无金属交叉脱氢偶联。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-03-17 DOI: 10.1002/asia.202500001

Fangzhi Hu, Peng Wang, Jiawei Li, Fengying Dong, Long Yi Jin, Shuai-Shuai Li

引用次数: 0

From Step-Saving New Synthesis to Photovoltaic Applications of Triindenotrithiophene (TITT) and Related π-Extended Oligoaryls. 从节省步骤的新合成到三吲哚三噻吩（TITT）及其相关的π延伸低聚芳基的光伏应用。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-03-17 DOI: 10.1002/asia.202401830

Yin-Chi Wang, Kun-Mu Lee, Chen-Yu Weng, Shan-Ru Lin, Ching-Yuan Liu

{"title":"From Step-Saving New Synthesis to Photovoltaic Applications of Triindenotrithiophene (TITT) and Related π-Extended Oligoaryls.","authors":"Yin-Chi Wang, Kun-Mu Lee, Chen-Yu Weng, Shan-Ru Lin, Ching-Yuan Liu","doi":"10.1002/asia.202401830","DOIUrl":"10.1002/asia.202401830","url":null,"abstract":"Truxenes, the π-conjugated small molecules with a C3h-symmetry, have been extensively investigated in synthesis and application as organic optoelectronic materials. Compared to truxenes, triindenotrithiophene (TITT), a thienyl congener of truxene, was much less explored in the field of synthetic chemistry as well as photovoltaic applications. Different from the reported synthesis requiring at least 14 steps to access TITT-related small molecules, in this work, we have successfully developed a seven-step new synthetic route to TITT and its π-extended oligoaryls (YCW01-04). Our synthetic strategy involved two direct C─H/C─Br coupling reactions, avoiding tedious protection/deprotection chemical transformations. Essential reaction conditions including ligand, base, and solvent for direct C─H arylations were well-optimized, thus affording target products in yields up to 87% (YCW02). In addition, for the first time, the TITT core-based oligoaryls were fabricated as hole-transporting material (HTM) in perovskite solar cells (PSC), giving the highest power conversion efficiency (PCE) of 15.3% (YCW01).","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202401830"},"PeriodicalIF":3.5,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143646682","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

Reactivity of Ionic Liquid-Based Phenolate Zwitterions for CO₂ Capture in the Aqueous Phase. 基于离子液体的酚酸两性离子在水相中捕获二氧化碳的反应性。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-03-16 DOI: 10.1002/asia.202401812

Bruno B de Araujo, Paulo F B Gonçalves

引用次数: 0

Indole-Boron-Difluoride Complexes with Anticancer and Fluorescence Properties. 吲哚-二氟化硼配合物的抗癌和荧光性质。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-03-15 DOI: 10.1002/asia.202401698

Veerapattha Vanthiya, Theeranuch Jaroenchuensiri, Kriangsak Faikhruea, Pitchayanin Pang-Eaem, Napongchayon Plianjantuek, Taweetham Limpanuparb, Tirayut Vilaivan, Chanat Aonbangkhen, Pitak Chuawong

{"title":"Indole-Boron-Difluoride Complexes with Anticancer and Fluorescence Properties.","authors":"Veerapattha Vanthiya, Theeranuch Jaroenchuensiri, Kriangsak Faikhruea, Pitchayanin Pang-Eaem, Napongchayon Plianjantuek, Taweetham Limpanuparb, Tirayut Vilaivan, Chanat Aonbangkhen, Pitak Chuawong","doi":"10.1002/asia.202401698","DOIUrl":"10.1002/asia.202401698","url":null,"abstract":"Eight indole-boron-difluoride complexes were synthesized from 2,3-arylpyridylindole derivatives via Sonogashira coupling and Larock heteroannulation. These complexes exhibited distinct photophysical properties. Solvent polarity influenced their spectral behavior showing hypsochromic absorption, bathochromic emission shifts, and aggregation-induced emission (AIE) in mixed solvents. The ¹⁹F NMR shifts and photophysical properties, including excitation, emission maxima, and Stokes shift, correlated with Hammett substituent constants highlighting electronic effects on molecular properties. The synthesized complexes exhibited a range of intramolecular charge transfer (ICT) behaviors, as evidenced by their Lippert-Mataga parameters. TD-DFT calculations aligned with experimental data, offering insight into spectroscopic behavior. Notably, the indole-boron-difluoride complex bearing a methyl ester group exhibited significant anticancer activity against HeLa cells and potential for fluorescence imaging, indicating its promise for biomedical applications in cell imaging and therapy.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202401698"},"PeriodicalIF":3.5,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143633268","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

N-Substituted Aza-Glycine Promotes C8 CO···HN Hydrogen Bonding: A Novel Motif to Design Constrained Peptidomimetics. n -取代氮杂甘氨酸促进C8 CO··HN氢键：设计约束拟肽的新基序。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-03-15 DOI: 10.1002/asia.202500035

Anshulata, Amar Ghosh, Bani Kanta Sarma

{"title":"N-Substituted Aza-Glycine Promotes C8 CO···HN Hydrogen Bonding: A Novel Motif to Design Constrained Peptidomimetics.","authors":"Anshulata, Amar Ghosh, Bani Kanta Sarma","doi":"10.1002/asia.202500035","DOIUrl":"10.1002/asia.202500035","url":null,"abstract":"Peptidomimetic modifications enhance the rigidity, cell permeability, and proteolytic stability of peptides, presenting significant promise for drug development. One such modification involves the isosteric replacement of the peptide backbone CαH with a nitrogen (N) atom, resulting in azapeptides. In azapeptides, there are two backbone N atoms within a single residue, with the possibility of substituting either one or both simultaneously. Previous studies have effectively mimicked the side chain substitution patterns in peptides by focusing on substituents on the nitrogen at the Cα position of azapeptides. In this study, we explored the unconventional substitution at the N-terminus nitrogen by using N-substituted aza-glycine (azGly). We investigated peptide-azapeptide dimers featuring N-acetyl-proline at the N-terminus of an N-methyl azGly residue. These hybrid peptides produced turn structures stabilized by an unusual C8 CO···HN hydrogen bond, stabilizing the proline amide in its trans conformation. Computational studies, including Density Functional Theory (DFT), Natural Bond Orbital (NBO), and Atoms In Molecules (AIM) analyses, confirmed the stabilizing effect of this C8 hydrogen bond, which was further validated by NMR and CD spectroscopic studies. As the NH position is occupied by CαHR in natural peptides and proteins, formation of such C8 hydrogen bond is unlikely. Overall, we provided a novel strategy to introduce non-natural C8 hydrogen bond into peptide backbone via the incorporation of N-substituted azGly, which could be used to design more rigid and stable peptides and peptidomimetics, with potential applications in drug development.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e202500035"},"PeriodicalIF":3.5,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143633269","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