ChemPlusChemPub Date : 2026-07-05DOI: 10.1002/cplu.70198
Jia-Yu Huang, Lei Shi, Feng Li, Ting-Long Wu, Li-Ping Si, Jun-Ying Chen, Hai-Yang Liu
{"title":"Electrocatalytic Hydrogen Evolution Reaction of Nonmetallic Phosphorus Corroles Bearing Nitro Group","authors":"Jia-Yu Huang, Lei Shi, Feng Li, Ting-Long Wu, Li-Ping Si, Jun-Ying Chen, Hai-Yang Liu","doi":"10.1002/cplu.70198","DOIUrl":"https://doi.org/10.1002/cplu.70198","url":null,"abstract":"<p>Three new metal-free phosphorus corrole complexes <b>1</b>–<b>3</b> bearing a nitro group at the <i>ortho</i>-, <i>meta</i>- or <i>para-</i>position of the 10-<i>meso</i> phenyl group were synthesized and used as electrocatalysts for hydrogen evolution reaction (HER). The position of the nitro group may significantly influence their catalytic HER performance in both organic and aqueous media. The catalytic activity follows the order of <b>2</b> > <b>3</b> > <b>1</b> in both media. When using trifluoroacetic acid (TFA) or <i>p</i>-toluenesulfonic acid (TsOH) as proton sources, the electrocatalytic HER proceeds via an EECC pathway (E: electron transfer; C: chemical reaction). The best catalyst <b>2</b> showed maximum turnover frequency values of 24.87 s<sup>−1</sup> in DMF containing TFA and 156.25 h<sup>−1</sup> in aqueous solution. DFT calculation results well rationalize the experimental observations.</p>","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 7","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148389189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ChemPlusChemPub Date : 2026-07-05DOI: 10.1002/cplu.70201
Ahmed Al-Harrasi, Ali Rostami, Mohammed Al-Jassasi, Hossein Yazdani
{"title":"Metformin-Based Bio-Inspired Organocatalysts for CO2 Fixation of Terminal/Internal Epoxides","authors":"Ahmed Al-Harrasi, Ali Rostami, Mohammed Al-Jassasi, Hossein Yazdani","doi":"10.1002/cplu.70201","DOIUrl":"https://doi.org/10.1002/cplu.70201","url":null,"abstract":"<p>In this study, we developed two classes of metformin-based organic catalysts that efficiently promote the formation of high-value cyclic carbonates and oxazolidinone derivatives from CO<sub>2</sub> and epoxides. Three bifunctional metforminium halide salts—chloride, bromide, and iodide (Met–I)—were prepared and evaluated in CO<sub>2</sub> cycloaddition reactions. Met–I exhibited the highest activity, affording 14 mono-substituted cyclic carbonates under mild conditions. It also enabled the synthesis of di- and three-substituted cyclic carbonates. A second catalyst library comprising 12 halide-free metformin-derived organic salts containing pyridinolate and phenolate anions was developed. Among these, metforminium 2-pyridin-1-olate delivered the highest performance, providing cyclic carbonates in high yields under metal-free and solvent-free reaction conditions. Furthermore, the synthesis of 5-hydroxymethyl oxazolidinone derivatives was achieved using metforminium 2-pyridin-1-olate. The simple preparation, low cost, commercial availability, nontoxicity, easy purification, and low environmental footprint of these catalysts highlight metformin-based systems as practical and sustainable platforms for efficient CO<sub>2</sub> utilization.</p>","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 7","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148389190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ChemPlusChemPub Date : 2026-06-25DOI: 10.1002/cplu.70195
Zhanwang Li, Bing Liu, Hong Yang, Yubao Bi, Sihui Wu, Mingyue Wang, Yuncong Xu, Wenfeng Han
{"title":"Stabilizing Pd Catalysts on Pentacoordinated Al3+ Sites of Alumina for Efficient Hydrogenation of Hexafluoropropylene","authors":"Zhanwang Li, Bing Liu, Hong Yang, Yubao Bi, Sihui Wu, Mingyue Wang, Yuncong Xu, Wenfeng Han","doi":"10.1002/cplu.70195","DOIUrl":"10.1002/cplu.70195","url":null,"abstract":"<p>Achieving high dispersion and stability of noble metals on conventional supports remains a key challenge in catalysis. Herein, we address this issue by designing an alumina support enriched with pentacoordinated Al<sup>3+</sup> (Al<sup>3+</sup>penta) sites, which serve as effective anchoring centers for Pd species. The catalyst was applied to the gas-phase hydrogenation of hexafluoropropylene (HFP), a critical step in the synthesis of the low-global-warming-potential refrigerant HFO-1234yf. Comprehensive characterization, including <sup>27</sup>Al MAS NMR, XPS, and HRTEM suggest that the Al<sup>3+</sup> penta sites strongly interact with Pd, forming Pd-O-Al bridge structures, thereby suppressing Pd aggregation and enhancing Pd dispersion. The optimized 0.5 wt% Pd/EA-Al<sub>2</sub>O<sub>3</sub> catalyst achieved approximately 92% HFP conversion at 90°C, significantly outperforming conventional Pd/γ-Al<sub>2</sub>O<sub>3</sub> counterpart. This work underscores the decisive role of Al<sup>3+</sup> penta sites in regulating metal-support interactions and provides a viable strategy for designing efficient catalysts with reduced noble-metal loadings.</p>","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 6","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148314997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Design, Synthesis, and Performance Characterization of BODIPY-Based NIR Probes for Aβ42 Aggregate Detection","authors":"Jiaoru Chen, Xueling Ding, Dezhong Guan, Shilong Zhu, Xiaoyi Zhang, Lingfeng Xie, Jinpei Zhou, Huibin Zhang","doi":"10.1002/cplu.70196","DOIUrl":"10.1002/cplu.70196","url":null,"abstract":"<p>Alzheimer’s disease (AD) is a progressive neurodegenerative disease with typical pathological features including β-amyloid (Aβ) plaques. Achieving early and accurate detection of cerebral Aβ aggregates is essential for timely intervention in AD, but the process is challenging. To address the lack of high-sensitivity and high signal-to-noise ratio near-infrared imaging tools for the early pathological detection of Aβ, we designed and synthesized two BODIPY-quinoline-based fluorescent probes, <b>BQ-1</b> and <b>BQ-2</b>, for targeting Aβ<sub>42</sub> aggregates. <b>BQ-1</b> showed high affinity (<i>K</i><sub>D</sub> = 48.81 nM), high sensitivity (LOD = 52 nM), and high signal-to-noise ratio (189.5-fold) for Aβ<sub>42</sub> aggregates. Based on the twisted intramolecular charge transfer (TICT) mechanism, <b>BQ-1</b> showed near-infrared fluorescence emission (<i>λ</i><sub>ex</sub>/<i>λ</i><sub>em</sub> = 612/669 nm, Stokes shift 57 nm) after binding to Aβ<sub>42</sub> aggregates, which showed good optical properties. Cell imaging experiments showed that <b>BQ-1</b> could label Aβ<sub>42</sub> aggregates in PC12 cells with high selectivity and low cytotoxicity. This study demonstrates that <b>BQ-1</b> is a near-infrared (NIR) fluorescent probe with excellent performance and provides a potential tool for early pathological imaging diagnosis of AD.</p>","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 6","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148315054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Eliminate the Metal Ion in the Edible Oil Based on High Extraction pH-Switchable Deep Eutectic Solvents","authors":"Bangfu Liu, Xuemin Hu, Xiao Tian, Shizhao Liu, Yige Wang, Mingzhu Wang","doi":"10.1002/cplu.70194","DOIUrl":"10.1002/cplu.70194","url":null,"abstract":"<p>In this paper, High extraction pH-switchable deep eutectic solvents (SDESs) were prepared with fatty acid. The high extraction of SDESs is attributed to the fatty acid complex with metal ions in the extracting process. The SDES-1 was selected as an optimum reagent to extract metal ions from edible oil. The study showed that, in the phase switching, the longer the carbon chain of the fatty acid, the more NaOH is consumed. Only part of the fatty acid participates in the acid-base reaction during the phase switching. The SDES-1 is a good extraction of metal ions. All of the Mn<sup>2+</sup> in edible oil was extracted when <i>V</i><sub>SDES−1</sub>:<i>V</i><sub>sample</sub> was 2:1, and SDES-1 extracts Mn<sup>2+</sup> 2 times. The 100 g/L NaOH and GR HCl were selected in the process of phase change. The recovery test shows that the edible oil was separated when SDES-1 turned into the hydrophilic SDES-1 salt solution. The Mn<sup>2+</sup> was well cleared by adding saturated EDTA-2Na reagents (<i>V</i><sub>sample</sub>:<i>V</i><sub>EDTA−2Na</sub> = 1:10) after 3 times. The SDES-1 was successfully used to clear Mn<sup>2+</sup> in the rapeseed oil.</p>","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 6","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148300308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Mitochondria-Targeted Flavokawain A Derivative Suppresses Lymphoma by Disrupting Oxidative Phosphorylation","authors":"Shufang Fan, Wanchuan Zhuang, Qunfang Ge, Jingbo Hu, Guifang Ouyang","doi":"10.1002/cplu.202500691","DOIUrl":"10.1002/cplu.202500691","url":null,"abstract":"<p>Diffuse large B-cell lymphoma (DLBCL) remains clinically challenging because of drug resistance and relapse after standard therapy. In this study, we developed TPP-FLA, a mitochondria-targeted derivative of Flavokawain A (FLA) generated by conjugation with triphenylphosphonium (TPP), and evaluated its antilymphoma activity and underlying mechanism. Compared with FLA, TPP-FLA showed markedly enhanced antiproliferative activity and induced stronger lymphoma cell death and apoptosis in multiple lymphoma cell lines. Mechanistically, TPP-FLA caused pronounced mitochondrial dysfunction, as evidenced by mitochondrial membrane potential collapse detected by JC-1 staining and independently validated by Tetramethylrhodamine Methyl Ester (TMRM) staining. TPP-FLA also increased total intracellular oxidative stress, as detected by DCFH-DA, and specifically promoted mitochondria-derived superoxide accumulation, as confirmed by MitoSOX Red staining. Transcriptomic and DIA-based proteomic analyses further revealed that TPP-FLA significantly disrupted mitochondrial energy metabolism, particularly oxidative phosphorylation-related pathways. Collectively, these findings demonstrate that TPP conjugation substantially enhances the antilymphoma activity of FLA by inducing mitochondrial depolarization, oxidative stress, and oxidative phosphorylation disruption. TPP-FLA may therefore represent a promising mitochondria-targeted candidate for lymphoma therapy.</p>","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 6","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148248414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ChemPlusChemPub Date : 2026-06-14DOI: 10.1002/cplu.70192
Filippo Protti, Lucio Toma, Giuseppe Zanoni, Emanuele Casali
{"title":"CALPUCK: An Open Python Tool for Cremer–Pople Ring Puckering Analysis Including a New 2D Mapping of Seven-Membered Rings","authors":"Filippo Protti, Lucio Toma, Giuseppe Zanoni, Emanuele Casali","doi":"10.1002/cplu.70192","DOIUrl":"10.1002/cplu.70192","url":null,"abstract":"<p>Ring puckering is a central conformational phenomenon that strongly influences the structure and reactivity of cyclic and heterocyclic molecules, with particular relevance to carbohydrate chemistry and stereoelectronic effects. Ring puckering represents a critical conformational phenomenon in organic chemistry, where cyclic molecules deviate from planarity through out-of-plane bending motions to minimize steric and electronic strain. To make quantitative puckering analysis more accessible, this work presents a free, open-source Python tool that computes Cremer–Pople puckering parameters for five-, six- and seven-membered rings from standard .xyz coordinates and produces intuitive two-dimensional visualizations of amplitude and phase. The implementation centers on vectorized projections onto sinusoidal basis functions, special-case handling for different ring sizes, and interactive selection of ring atoms; it emphasizes clarity, speed, and explicit support for seven-membered systems often neglected due to the difficulty to represent toroidal landscape. Validation and discussion illustrate how the tool maps canonical envelope, twist, chair, boat, and higher-dimensional pseudorotation landscapes onto readable plots, enabling rapid classification of conformers and interpretation of dynamical motifs. The program provides a practical and accessible implementation for the analysis and visualization of ring conformations based on puckering coordinates.</p>","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 6","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cplu.70192","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148248366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Boosting Closed Pores and Nitrogen Content in Hard Carbon via a Pre-Oxidation Approach for Fast-Charging Sodium-Ion Batteries","authors":"Shoucong Gao, Runyi Zhou, Yong Zhao, Chuang Bao, Mingrui Tian, Zhenhuan Wu, Meihui Wang, Zheng Bo, Huachao Yang","doi":"10.1002/cplu.70189","DOIUrl":"10.1002/cplu.70189","url":null,"abstract":"<p>Hard carbon has been widely recognized as a practical anode candidate for sodium-ion batteries because of its low cost, appropriate working potential, and structural stability. Nevertheless, its practical application remains limited by insufficient reversible capacity and poor high-rate performance. In this work, a nitrogen-enriched hard carbon with tuned structural order is synthesized from xylose via a simple air pre-oxidation step prior to carbonization, demonstrating fast-charging sodium-ion batteries. This pre-oxidation process introduces oxygen-containing groups in the precursor, enhances intermolecular cross-linking, and suppresses excessive structural fusion during pyrolysis, resulting in an optimized disordered/graphitic balance. Notably, this treatment improves nitrogen retention and modulates pore evolution, yielding enlarged interlayer spacing, smaller microcrystalline domains, and abundant closed ultramicropores, which are highly favorable for sodium storage in the plateau region. Benefiting from the synergistic effects of structural regulation and heteroatom doping, the optimized hard carbon electrode delivers a high reversible capacity of 397.4 mAh g<sup>−1</sup> and excellent rate capability of 148.5 mAh g<sup>−1</sup> at 5 A g<sup>−1</sup>. This work provides a straightforward and cost-effective strategy for engineering high-performance biomass-derived hard carbon anodes for advanced sodium-ion batteries.</p>","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 6","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148248385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ChemPlusChemPub Date : 2026-06-14DOI: 10.1002/cplu.70191
Huiquan Fu, Raja Sidra Shakeel, Yan-Bo Peng, Jun Liu, Muhammad Nafees
{"title":"Cinoplatin: An Efficient Platinum(IV) Prodrug Effective in Inhibiting the Growth of Cervical Cancer","authors":"Huiquan Fu, Raja Sidra Shakeel, Yan-Bo Peng, Jun Liu, Muhammad Nafees","doi":"10.1002/cplu.70191","DOIUrl":"10.1002/cplu.70191","url":null,"abstract":"<p>Platinum(IV) prodrugs are emerging as promising anticancer agents due to their potential to improve cellular uptake, selectively target tumors, and reduce the systemic toxicity of their parental Pt(II) drugs. In this study, we synthesized a dual-action Pt(IV) complex, cinoplatin, by anchoring 3,4-(methylenedioxy)cinnamic acid at the axial position of oxoplatin. Cellular studies demonstrated that cinoplatin exhibited markedly higher sensitivity toward cervical carcinoma cells compared to other tested cancer cell lines, indicating a degree of tumor-type selectivity. Subcellular distribution analysis revealed that the complex preferentially accumulates in the cytoplasm, with minor fractions localized in the nucleus and mitochondria. Mechanistic analyses showed that nuclear localization induces significant DNA damage, as evidenced by elevated γ-H2AX and p53 levels, while mitochondrial targeting disrupts membrane potential, elevates reactive oxygen species, and impairs mitochondrial respiration and glycolysis. These combined effects trigger robust apoptosis in HeLa cells. Collectively, the high cellular uptake and dual subcellular targeting of cinoplatin highlight its mechanistically distinct cytotoxic profile, emphasizing the potential of dual-action Pt(IV) complexes to enhance anticancer efficacy.</p>","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 6","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148248345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ChemPlusChemPub Date : 2026-06-14DOI: 10.1002/cplu.70184
Daman Khan, Hammad Abbas, Fatima Nasim, Altaf Hussain, Muhammad Arif Nadeem
{"title":"Acid-Resistant High-Entropy Alloy Electrocatalysts: Unlocking Durable Oxygen Reduction Reaction and Oxygen Evolution Reaction Performance","authors":"Daman Khan, Hammad Abbas, Fatima Nasim, Altaf Hussain, Muhammad Arif Nadeem","doi":"10.1002/cplu.70184","DOIUrl":"10.1002/cplu.70184","url":null,"abstract":"<p>Increasing global energy demands, fossil fuel depletion and rising carbon dioxide (CO<sub>2</sub>) emissions have made it critical to look for sustainable energy sources. In this regard, proton exchange membrane water electrolysis (PEMWE) and fuel cells (PEMFCs) have gained importance. While PEM systems offer superior operational current density and load flexibility compared to alkaline electrolysis, their performance is limited by slow kinetics of oxygen evolution reaction (OER), and the oxygen reduction reaction (ORR). Achieving high efficiency in acidic environments demands electrocatalysts, capable of sustaining structural integrity with high activity and low overpotentials despite harsh acidic conditions. Thus, high entropy alloys (HEAs) have emerged as compelling solutions; their compositional tunability, intrinsic structural stability and superior corrosion resistance enables them as best candidates to reduce alliance on precious metals while delivering outstanding performance for ORR and OER. This review summarizes recent progress in HEA catalysts, systematically classifying them by metal composition and discussing their stability mechanisms in acid. Finally, the key challenges and future perspectives for the rational design and deployment of acid-stable HEA catalysts in next-generation energy conversion systems are outlined.</p>","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"91 6","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148248420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}