Chemistry - An Asian Journal最新文献_第2页

trans-Configured Ligands Boost Spin Crossover to Room Temperature in Mononuclear Fe(II) Complexes. 反式配体促进单核铁（II）配合物室温自旋交叉。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-07-21 DOI: 10.1002/asia.202500638

Guang-Wen Fu, Yan Kong, Xin Chen, Ying-Ying Wu, Zi-Han Yan, Zhao-Yang Li, Yan-Hui Shi, Jing-Wei Dai, Xi-Guang Han, Feng-Lei Yang

{"title":"trans-Configured Ligands Boost Spin Crossover to Room Temperature in Mononuclear Fe(II) Complexes.","authors":"Guang-Wen Fu, Yan Kong, Xin Chen, Ying-Ying Wu, Zi-Han Yan, Zhao-Yang Li, Yan-Hui Shi, Jing-Wei Dai, Xi-Guang Han, Feng-Lei Yang","doi":"10.1002/asia.202500638","DOIUrl":"https://doi.org/10.1002/asia.202500638","url":null,"abstract":"Seven new mononuclear complexes [Fe(aqin)2(NCS)2] (1), [Fe(aqin)2(NCSe)2] (2), [Fe(aqin)2(NCBH3)2] (3), [Fe(2-pic)2(NCS)2] (4), [Fe(2-pic)2(NCSe)2] (5), [Fe(2-pic)(NCBH3)2] (6), [Fe(tpa)(NCBH3)2] (7), [aqin = 8-aminoquinoline, 2-pic = 2-picolylamine, tpa = tris(2-pyridylmethyl)amine)] are investigated. Structurally, except for 3, which affords a trans-configuration, all the complexes adopt a cis-configuration. Their propensity to crystallize without any solvent molecules facilitates the study of the influence of the \"pure\" ligand on spin-crossover (SCO) characteristics. Magnetically, 1, 2, and 4 remain in the high-spin state, and 3, 5, 6, and 7 display SCO with transition temperatures T1/2 of approximately 310, 162, 262, and 400 K, respectively. The T1/2 values of all the complexes except 3 follow the sequence of ligand-field strength, whereas the T1/2 value of 3 is increased to room temperature, beyond that of the whole cis-[Fe(2-pic)2(NCE)2] family. Theoretical modeling based on the harmonic approximation via Gaussian and periodic DFT+U+D3 calculations via the QE reveals that the lower distortion effect of the trans-configuration resulted in the LS stabilization increasing T1/2.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e00638"},"PeriodicalIF":3.5,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144673481","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}

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Impact of Advances in Anion Exchange Membranes and Ionomers on Alkaline Fuel Cells. 阴离子交换膜和离聚物研究进展对碱性燃料电池的影响。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-07-21 DOI: 10.1002/asia.202500100

Zhongyang Wang, Shrihari Sankarasubramanian, Jianping Chen, Vijay K Ramani

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Polyhydroxyurethane/Cobalt Nanocomposites as Green Non-PGM Electrocatalysts for OER. 聚羟基聚氨酯/钴纳米复合材料作为绿色非pgm OER电催化剂。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-07-21 DOI: 10.1002/asia.202500609

Bantumelli Prasannatha, Sateesh Mulkapuri, Tushar Jana

{"title":"Polyhydroxyurethane/Cobalt Nanocomposites as Green Non-PGM Electrocatalysts for OER.","authors":"Bantumelli Prasannatha, Sateesh Mulkapuri, Tushar Jana","doi":"10.1002/asia.202500609","DOIUrl":"https://doi.org/10.1002/asia.202500609","url":null,"abstract":"Developing low-cost, efficient non-platinum group metal (non-PGM) electrocatalysts for the oxygen evolution reaction (OER) is critical for advancing green hydrogen production. In search of such a non-PGM catalyst, in this study, biodegradable polyhydroxyurethane (PHU) and cobalt salt nanocomposites were developed as green OER electrocatalysts for alkaline conditions (pH ∼13). Various amino acid-based PHUs were blended with cobalt salt and sodium alginate (NaAL), yielding non-PGM electrocatalysts (PHU1-PHU6). NaAL enhanced catalytic performance by improving ion and mass transport at the PHU-alginate interface. The hybrid catalysts exhibited superior OER activity, with PHU6 achieving a current density of 32 mA/cm2 at 1.58 V, outperforming the benchmark RuO₂ (17 mA/cm2 at 1.45 V) and CoOx (12 mA/cm2 at 1.53 V). PHU6 also demonstrated a lower Tafel slope (102 mV/dec), higher electrochemical surface area (53 cm2), double-layer capacitance (1.32 mF), and similar overpotential (239 mV @ 10 mA/cm2) compared to RuO₂ and CoOx. Its Faradic efficiency (∼80%) surpassed RuO₂ (76%) and CoOx (73%). The structure of PHUs significantly influenced these electrochemical parameters, showcasing PHU6's promise as a cost-effective, sustainable OER catalyst with excellent performance and stability.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e00609"},"PeriodicalIF":3.5,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144673504","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}

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Polymeric Membranes for Advanced Separation and Sensing: Materials and Mechanisms for Emerging Applications-A Review. 用于高级分离和传感的聚合物膜：新兴应用的材料和机制综述。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-07-21 DOI: 10.1002/asia.202500714

Salma Sultana, Debdyuti Chakraborty, Mohammad Anwar Parvez, Mohammed Rehaan Chandan, Mostafizur Rahaman

{"title":"Polymeric Membranes for Advanced Separation and Sensing: Materials and Mechanisms for Emerging Applications-A Review.","authors":"Salma Sultana, Debdyuti Chakraborty, Mohammad Anwar Parvez, Mohammed Rehaan Chandan, Mostafizur Rahaman","doi":"10.1002/asia.202500714","DOIUrl":"https://doi.org/10.1002/asia.202500714","url":null,"abstract":"Polymeric membranes have emerged as pivotal tools in advanced separation technologies due to their tunable properties, processability, and cost-effectiveness. This review critically evaluates recent advancements in membrane technologies, with a focus on their applications in water treatment, energy systems, and biomedical fields. Notable developments include nanocomposite membranes with enhanced performance, such as PSF/MXene membranes achieving > 95% rejection of bovine serum albumin (BSA) and water permeabilities exceeding 400 L·m⁻2·h⁻¹·bar⁻¹. Electrospun nanofibrous membranes demonstrated flux values ranging from 6898 to 18,614 L·m⁻2·h⁻¹ for oily wastewater filtration. Functionalized UF membranes incorporating TiO₂-HNTs and Ag-PDA-HNTs achieved > 98% BSA rejection and superior antifouling capabilities. Smart membranes, such as PNIPAM-modified systems, showed reversible wettability changes and temperature-responsive permeability. Additionally, 3D-printed and TIPS-fabricated membranes showcased improved selectivity and mechanical robustness. Environmentally friendly fabrication using green solvents, such as Rhodiasolv PolarClean®, enabled the production of high-performance membranes with rejection rates of over 85% for NaCl and over 93% for MgCl₂. Despite these advancements, challenges like fouling, high fabrication costs, and the permeability-selectivity trade-off persist. Strategies such as nanomaterial integration, stimuli-responsive design, and circular economy-aligned biodegradable polymers are analyzed as pathways for next-generation sustainable membranes.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e00714"},"PeriodicalIF":3.5,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144673506","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}

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Pushing Carbon Nanohoops to Dark Green by Inserting BODIPY Dye Into Cycloparaphenylene Scaffolds. 将BODIPY染料插入环对苯支架将碳纳米环推向深绿色。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-07-21 DOI: 10.1002/asia.202500765

Bing Yuan, Jinyi Wang, Xinyu Zhang, Jingwen Xu, Wenhui Leng, Nan Yin, Heng Zhang, Qitang Fan, Jianlong Xia, Jun Liu, Pingwu Du

{"title":"Pushing Carbon Nanohoops to Dark Green by Inserting BODIPY Dye Into Cycloparaphenylene Scaffolds.","authors":"Bing Yuan, Jinyi Wang, Xinyu Zhang, Jingwen Xu, Wenhui Leng, Nan Yin, Heng Zhang, Qitang Fan, Jianlong Xia, Jun Liu, Pingwu Du","doi":"10.1002/asia.202500765","DOIUrl":"https://doi.org/10.1002/asia.202500765","url":null,"abstract":"Molecules that absorb red or near-infrared (NIR) light have been widely utilized in various fields with most reported NIR-absorbing materials focusing on planar conjugated molecules and polymers. However, the potential of curved carbon nanohoops as NIR absorbers has yet to be investigated. In this present study, for the first time, we synthesize a series of novel carbon nanohoops [n]CPP-BODIPY (n = 6, 7, and 9) by embedding boron dipyrromethene (BODIPY) dye into cycloparaphenylene scaffolds. These compounds exhibit an exclusive dark green color in the solid state. Remarkably, the absorption maxima of [n]CPP-BODIPY (n = 6, 7, and 9) exhibited a redshift over 140-170 nm compared to the BODIPY monomer and even > 300 nm compared to their corresponding CPP nanohoops, extending absorption features into the first NIR window. This establishes them as a novel class of carbon nanohoops with the most significant redshifted absorption to date. The successful application of this approach introduces a novel concept for synthesizing NIR absorbers based on CPP structures.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e00765"},"PeriodicalIF":3.5,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144673507","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

Smartphone-Assisted Film Fluorescent Sensor for Quantitative and Visual Detection of Fluoride Ions. 用于氟离子定量和视觉检测的智能手机辅助薄膜荧光传感器。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-07-21 DOI: 10.1002/asia.202500533

Xinyu Ma, Wen Sun, Feng Gao, Yong Sun, Huie Jiang, Jie Jiang, Weisheng Liu

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Enlarged-TriQuinoline (Enl-TQ): Disparity in Chemical Behaviors by Geometric Scaling of the Trimeric Quinoline Ring System. 放大的三喹啉（Enl-TQ）：三聚喹啉环体系几何缩放的化学行为差异。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-07-21 DOI: 10.1002/asia.202500429

Mai Yamashita, Ryosuke Tsutsumi, Toi Kobayashi, Naoya Kumagai

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Heterogeneous Catalysts for Toluene Oxidation. 甲苯氧化的多相催化剂。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-07-21 DOI: 10.1002/asia.202500530

Zhen Su, Hua Long, Rui-Rui Zhao, Ke Gao, Wen-Jing Xiao

{"title":"Heterogeneous Catalysts for Toluene Oxidation.","authors":"Zhen Su, Hua Long, Rui-Rui Zhao, Ke Gao, Wen-Jing Xiao","doi":"10.1002/asia.202500530","DOIUrl":"https://doi.org/10.1002/asia.202500530","url":null,"abstract":"The selective activation of C(sp3)-H bonds in toluene to produce high value-added oxygenated chemicals represents a pivotal challenge and opportunity for both fundamental researches and industrial applications. Since the C(sp3)-H bonds are both thermodynamically robust and kinetically inert, conventional catalytic techniques for the activation process require the use of toxic, aggressive, and costly reagents under rather harsh conditions. By virtue of high stability and ease separation of catalysts, heterogeneous catalysis, especially heterogeneous photocatalysis, has emerged as promising candidates for the activation of C-H bonds under mild conditions. In the current review, we summarize the development of heterogeneous thermocatalysts, photocatalysts, and electrocatalysts, as well as their catalyst modification strategies and reaction mechanisms for toluene oxidation. We examine and analyze these catalytic systems based on conversion and selectivity, recyclability, reaction scale, substrate scope, reaction conditions (e.g., temperature, pressure, and oxidants), and so on. Finally, we provide our perspectives on challenges and opportunities toward the future research for the high-performance heterogeneous catalytic systems for toluene oxidation.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e00530"},"PeriodicalIF":3.5,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144673495","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}

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Combinatorial Glyoxal Cross-Linking and Glutamic Acid Capping for Mitigating Calcification in Bovine Pericardium. 组合乙二醛交联和谷氨酸封盖减轻牛心包钙化。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-07-21 DOI: 10.1002/asia.202500652

Dinesh Annamalai, Thiyaneshwar Ramamoorthy, Agnes Mary Soloman, Arun Gopinath, Dineshkumar Masilamani, Sarasa Bharathi, Iruthayapandi Selestin Raja, Dong-Wook Han, Balaraman Madhan

{"title":"Combinatorial Glyoxal Cross-Linking and Glutamic Acid Capping for Mitigating Calcification in Bovine Pericardium.","authors":"Dinesh Annamalai, Thiyaneshwar Ramamoorthy, Agnes Mary Soloman, Arun Gopinath, Dineshkumar Masilamani, Sarasa Bharathi, Iruthayapandi Selestin Raja, Dong-Wook Han, Balaraman Madhan","doi":"10.1002/asia.202500652","DOIUrl":"https://doi.org/10.1002/asia.202500652","url":null,"abstract":"Bioprosthetic heart valves (BHVs) offer advantages over mechanical valves but are limited by long-term degeneration and calcification. This study aimed to develop a durable BHV material using decellularized bovine pericardium (BP) and alternative cross-linking strategies. BP was decellularized using a combination of sodium deoxycholate (SDC) and Triton X-100 (TX), which removed cellular components while preserving the extracellular matrix (ECM), as confirmed by histological, DNA quantification, and biochemical analyses. The impact of glutaraldehyde, glyoxal, tannic acid, and catechin cross-linking on calcification propensity and mechanical properties was evaluated. Glyoxal-cross-linked BP, further capped with 1% l-glutamic acid, demonstrated superior resistance to calcification while maintaining mechanical properties comparable to standard glutaraldehyde treatment. These results suggest that SDC-TX decellularized, glyoxal-cross-linked BP with l-glutamic acid capping presents a promising strategy for enhancing BHV durability and biocompatibility, offering a potential alternative to conventional glutaraldehyde.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e00652"},"PeriodicalIF":3.5,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144673474","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}

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Sulfonatocalixarene Promotes Drug Assembly Based on Supramolecular Host•-Guest Complexation in Aqueous Solution. 磺胺基杯芳烃促进水溶液中基于超分子主-客体络合的药物组装。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2025-07-21 DOI: 10.1002/asia.70175

Khaleel I Assaf

引用次数: 0