Chinese Chemical Letters最新文献

{"title":"Indium-captured zirconium-porphyrin frameworks displaying rare multi-selectivity for catalytic transfer hydrogenation of aldehydes and ketones","authors":"Hua Liu ,&nbsp;Jian Zhao ,&nbsp;Qi Li ,&nbsp;Xiang-Yu Zhang ,&nbsp;Zhi-Wei Zheng ,&nbsp;Kun Huang ,&nbsp;Da-Bin Qin ,&nbsp;Bin Zhao","doi":"10.1016/j.cclet.2024.110593","DOIUrl":"10.1016/j.cclet.2024.110593","url":null,"abstract":"<div><div>Selective catalytic transfer hydrogenation (CTH) of carbonyl compounds to obtain specific alcohols holds significant importance across various fields. Achieving multiple selectivity in CTH is particularly crucial, but full of great challenge. Herein, a cationic In-captured Zr-porphyrin framework (<strong>1</strong>) with nanosized pores/cages was successfully constructed and showed high structure stability. Catalytic investigations revealed that <strong>1</strong> displayed highly multi-selective CTH of aldehydes and ketones containing both chemo- and size selectivity for the first time. The CTH of aldehydes and ketones exhibited remarkable reductive selectivity of 99% towards C<img>O bonds into CH<img>OH in the presence of -NO₂, -CN and C<img>C groups. Through tuning the reaction conditions, <strong>1</strong> also exhibited highly selective reduction of 97% for -CHO groups in the simultaneous presence of -CHO and -COCH₃ groups in intra- and intermolecular settings. Remarkably, reductive selectivity towards -CHO group remained prominent among five concurrent unsaturated groups mentioned above. Additionally, the definite pore size of <strong>1</strong> facilitated volume control of substrates, enabling size selectivity. <strong>1</strong> as a heterogeneous catalyst was further confirmed by leaching tests, and maintained high activity even after being used for at least six cycles. Mechanistic studies have revealed that Zr₆O₈ clusters served as the catalytic centers and the observed chemoselectivity mainly results from the synergistic effect of distinct metal sites within <strong>1</strong>. The heightened selectivity towards -CHO over -COCH₃ can be attributed to the easier realization of transfer hydrogenation processes for -CHO compared to -COCH₃.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 6","pages":"Article 110593"},"PeriodicalIF":9.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144222606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nd@g-C3N4 dual-functional photosynthesis and antitumor activities of 3-fluoroalkylated quinoxalin-2(1H)-ones","authors":"Qiong-Hui Peng ,&nbsp;Ning-Bo Li ,&nbsp;Jia-Cheng Hou ,&nbsp;Cai-Jun He ,&nbsp;Ya-Xin Yang ,&nbsp;Chun-Lin Zhuang ,&nbsp;Li-Juan Ou ,&nbsp;Mei Yuan ,&nbsp;Wei-Min He","doi":"10.1016/j.cclet.2025.111402","DOIUrl":"10.1016/j.cclet.2025.111402","url":null,"abstract":"<div><div>Herein, the Nd@g-C₃N₄ dual-functional photocatalysis enabled fluoroalkylative heteroarylation of alkenes with R_fSO₂Cl under visible-light and ultrasound conditions was firstly reported. The photogenerated electron-driven reductive production of fluoroalkyl radical paired with photogenerated hole-driven oxidative production of chloride radical resulted in the full utilization of photogenerated carrier for bond formation. A wide range of <em>N</em>-heteroarenes, alkenes and R_fSO₂Cl, were well compatible for this reaction to access valuable fluoroalkylated <em>N</em>-heteroarenes with diverse structural features. The antitumor potential of synthesized fluoroalkylated <em>N</em>-heterocycles against Glioma 261 cells was evaluated by CCK8 assay. Notably, compound <strong>4aka</strong> demonstrated remarkable efficacy, exhibiting approximately sevenfold greater potency than temozolomide, a widely used chemotherapeutic agent.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 12","pages":"Article 111402"},"PeriodicalIF":8.9,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145107640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carbonized polymer dots confined active Ru-O sites for boosting electrocatalytic oxygen evolution","authors":"Da Yue ,&nbsp;Tanglue Feng ,&nbsp;Zhicheng Zhu ,&nbsp;Mingcheng Zhang ,&nbsp;Liyuan Chen ,&nbsp;Xiao Han ,&nbsp;Haizhu Sun ,&nbsp;Bai Yang","doi":"10.1016/j.cclet.2025.111393","DOIUrl":"10.1016/j.cclet.2025.111393","url":null,"abstract":"<div><div>Designing efficient and stable electrocatalysts for the oxygen evolution reaction (OER) is of paramount importance for many energy-related technologies and devices. Herein, we propose a controlled oxidation pyrolysis strategy to develop carbonized polymer dots (CPDs)-modified Rh-doped RuO₂ electrocatalyst (Rh-RuO₂/CPDs). CPDs act as structure-directing agents, facilitating the formation of small-sized Rh-RuO₂/CPDs nanoparticles and engineering them with abundant defective structures and stable Ru-O sites. The experimental results and theoretical simulation unravel that the modulation effect of CPDs and Rh doping can effectively regulate the electronic structure, valence state and morphology of active Ru-O sites, thereby enhancing the electron transfer at the active site interface and optimizing the chemisorption behavior of oxygen intermediates. The resultant Rh-RuO₂/CPDs demonstrates overpotentials of 168 and 197 mV at 10 mA/cm² for OER in 0.5 mol/L H₂SO₄ and 1.0 mol/L KOH solution, respectively, and long-term catalytic stability.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 11","pages":"Article 111393"},"PeriodicalIF":8.9,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144860978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-throughput miniaturized purge-and-trap device integrating semiconductor refrigeration storage for on-site extraction and long-term preservation of VOCs in water","authors":"Yuan Yang ,&nbsp;Yue Wang ,&nbsp;Xi Wang ,&nbsp;Hanshuang Li ,&nbsp;Xiaoli Wu ,&nbsp;Yurong Deng ,&nbsp;Chengbin Zheng","doi":"10.1016/j.cclet.2025.111395","DOIUrl":"10.1016/j.cclet.2025.111395","url":null,"abstract":"<div><div>To accomplish on-site separation, preconcentration and cold storage of highly volatile organic compounds (VOCs) from water samples as well as their rapid transportation to laboratory, a high-throughput miniaturized purge-and-trap (μP&amp;T) device integrating semiconductor refrigeration storage was developed in this work. Water samples were poured into the purge vessels and purged with purified air generated by an air pump. The VOCs in water samples were then separated and preconcentrated with sorbent tubes. After their complete separation and preconcentration, the tubes were subsequently preserved in the semiconductor refrigeration unit of the μP&amp;T device. Notably, the high integration, small size, light weight, and low power consumption of the device makes it easy to be hand-carried to the field and transport by drone from remote locations, significantly enhancing the flexibility of field sampling. The performances of the device were evaluated by comparing analytical figures of merit for the detection of four cyclic volatile methylsiloxanes (cVMSs) in water. Compared to conventional collection and preservation methods, our proposed device preserved the VOCs more consistently in the sorbent tubes, with less than 5 % loss of all analytes, and maintained stability for at least 20 days at 4 °C. As a proof-of-concept, 10 municipal wastewater samples were pretreated using this device with recoveries ranging from 82.5 % to 99.9 % for the target VOCs.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 10","pages":"Article 111395"},"PeriodicalIF":8.9,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144772923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"H3PO3-protonated chitosan enabling flame-retardant and antibacterial PVA composite films with high strength and toughness through multiple H-bonds and interlocking interfaces","authors":"Xing Cao ,&nbsp;Xinyu Tian ,&nbsp;Yuanyuan Huang ,&nbsp;Liping Zhang ,&nbsp;Yanpeng Ni ,&nbsp;Yu-Zhong Wang","doi":"10.1016/j.cclet.2025.111382","DOIUrl":"10.1016/j.cclet.2025.111382","url":null,"abstract":"<div><div>Developing polymer materials combining high strength, toughness, multifunctionality, and environmental sustainability remains a major challenge. Herein, high-performance PVA-PCSx composite films were successfully fabricated by incorporating H₃PO₃-protonated chitosan (PCS) into the PVA matrix as both a bio-based multi-hydrogen-bonding crosslinking agent and a macromolecular flame retardant. Specifically, a comprehensive investigation was conducted on the hydrogen bonding interactions, microstructure, mechanical properties, antibacterial performance, and flame retardancy of the PVA-PCSx films. Strong hydrogen bonds between PCS and PVA enabled excellent compatibility and formed a unique mechanical interlocking interface architecture. This further resulted in superior transparency and synchronous reinforcement and toughening effects in the composites films. Compared with pure PVA, the PVA-PCSx films showed a 23 %-51 % increase in tensile strength and an 80 %-108 % improvement in fracture toughness. Moreover, PVA-PCSx films exhibited superior fire safety performance, achieving an LOI value of 31.3 %, attaining UL-94 V-0 rating, and reducing the heat release rate by up to 73.1 %. Additionally, PVA-PCSx films demonstrated 99.99 % antibacterial efficacy against both <em>Escherichia coli</em> and <em>Staphylococcus aureus</em>. Collectively, this study presents a simple yet effective strategy for fabricating high-strength, high-toughness, multifunctional composites using biopolysaccharides as additives.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 11","pages":"Article 111382"},"PeriodicalIF":8.9,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144860979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design strategies of Si-based anode for solid-state batteries","authors":"Peining Zhu ,&nbsp;Xi Guo ,&nbsp;Qinqin Yu ,&nbsp;Zuyong Wang ,&nbsp;Xiangxiao Lei ,&nbsp;Zhiwei Zhu ,&nbsp;Juan Du ,&nbsp;Xiaojia Zhang ,&nbsp;Yuan-Li Ding","doi":"10.1016/j.cclet.2025.111383","DOIUrl":"10.1016/j.cclet.2025.111383","url":null,"abstract":"<div><div>Solid-state lithium-ion batteries (SSLIBs) offer significant advantages over traditional liquid-electrolyte-based batteries, including improved safety, higher energy density, and better thermal stability. Among various anode materials, silicon (Si)-based anodes have attracted significant attention due to their ultrahigh theoretical capacity (∼4200 mAh/g) and abundant resources. However, widespread adoption of Si-based anodes in SSLIBs is still restricted by some critical challenges such as severe volume expansion, low electronic and ionic conductivity, high interfacial impedance, and low initial Coulombic efficiency (ICE). This review mainly focuses on the design strategies of Si-based anode for SSLIBs at the material, electrode and cell levels including nanostructuring, Si alloys, Si-carbon composites, conductive additives, advanced binder, external pressure, electrolyte infiltration, and prelithiation. The insights provided here aim to inspire future research and accelerate commercialization of high-performance Si-based anodes in next-generation SSLIBs.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 9","pages":"Article 111383"},"PeriodicalIF":9.4,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144587845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Metal-free click polymerization of thiols and chalcone-derived internal olefins in air to prepare functional clusteroluminescent polythioethers for dual-response fluorescent probe","authors":"Lei Li ,&nbsp;Guang Yang ,&nbsp;Tianbai Xiong ,&nbsp;Tingzhu Duan ,&nbsp;Jia Wang ,&nbsp;Xin Wang","doi":"10.1016/j.cclet.2025.111374","DOIUrl":"10.1016/j.cclet.2025.111374","url":null,"abstract":"<div><div>Thiol-ene click polymerization has become an effective synthetic tool for constructing diverse sulfur-containing polymers with advanced functions. However, the polymerization of internal alkene and thiol has been rarely used to prepare functional polymers because of large steric hindrance and relatively weak reactivity. In this work, a base-catalyzed click polymerization of thiols and internal olefins was successfully established in air. Notably, the polymerization went smoothly in halogen-containing solvent even without any catalyst <em>via</em> a radical step-growth polymerization. The polymerization enjoys excellent monomer applicability, which affords 16 well-defined polythioethers in high yields (up to 99 %) with high molecular weights (<em>M</em>_w up to 19,600), good thermal stability (<em>T</em>_d,5 % up to 326 °C), broadly regulated glass transition temperatures (-24∼95 °C), and unconventional fluorescence. <em>Via</em> a simple solvent regulation strategy, the vanillin-derived polythioether could be used as a turn-off fluorescence probe for Fe³⁺ ions in DMF/H₂O and a turn-on probe for Ag⁺ ions in THF, with low detection limits of 9.15 × 10^–7 mol/L and 4.60 × 10^–7 mol/L, respectively. Additionally, the detection of Ag⁺ presented a transformation from a clear solution to an emulsion, expanding the application prospects through observing colorimetric and fluorescent dual signals. Thus, this work not only holds significance in establishing an efficient polymerization, but also provides a strategy to prepare sensitive fluorescent probes for multiple metal ions.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 11","pages":"Article 111374"},"PeriodicalIF":8.9,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144860980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The role of oceanic carbon pumps in Earth's climate system: Impact and feedback under climate change","authors":"Dongping Song ,&nbsp;Tao Tu","doi":"10.1016/j.cclet.2025.111300","DOIUrl":"10.1016/j.cclet.2025.111300","url":null,"abstract":"","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 8","pages":"Article 111300"},"PeriodicalIF":9.4,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144177514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced removal of methylisothiazolinone from high-salt wastewater by Sn-Sb-Ce/GAC particle electrode: Reactive species and efficiency","authors":"Feng Xu ,&nbsp;Yuqiu Liu ,&nbsp;Shujiao Xu ,&nbsp;Jinxin Zhang ,&nbsp;Lei Liao ,&nbsp;Jiguang Guo ,&nbsp;Weiyu Jiang ,&nbsp;Hongzhe Dong ,&nbsp;Qinxue Wen ,&nbsp;Zhiqiang Chen","doi":"10.1016/j.cclet.2025.111332","DOIUrl":"10.1016/j.cclet.2025.111332","url":null,"abstract":"<div><div>Advanced oxidation processes are promising for degradation of the highly chemical stability and refractory methylisothiazolinone (MIT) bactericides in relevant industrial wastewater. In order to assemble a low cost and high performance electrochemical oxidation system for wastewater treatment, granular active carbon (GAC) was decorated by doping Ce, Sn, Sb to synthesize Sn-Sb-Ce/GAC using sol-gel method as particle electrode filled into a three-dimensional (3D) electrochemical reactor. Scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS) and X-ray diffraction (XRD) experiments revealed that the Sn-Sb-Ce/GAC particle electrode crystal particles were compact and uniform, and the surface structure was improved. The ten cyclic experiments indicated that the Sn-Sb-Ce/GAC particle electrode had high stability and low dissolution of the loaded active substance. The degradation mechanism of MIT was studied under the optimal working conditions of 3D electrode system with GAC of 5 g/L, current density of 20 mA/cm², initial pH 5, electrolyte concentration of Na₂SO₄ 0.02 mol/L and reaction time of 120 min. The indirect electrochemical degradation of MIT was dominated by active substance pathway that active chlorine rather than free radicals (^•OH) played the main role. Comparing with conventional two-dimensional (2D) electrode system, the 3D electrochemical system has larger active electrode area, higher treatment efficiency and lower energy consumption than the former. The 3D electrochemical system could remove 96.5 % of MIT from the actual high-salt reverse osmosis concentrate wastewater in 30 min. It has a certain removal effect on UV₂₅₄ in wastewater, but has a better removal effect on fluorescent substances. This study proposed a new strategy to develop transition metal and rare earth metal particle electrodes using carbon-based materials for high efficient electrocatalytic oxidation in the electrochemical treatment system.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 10","pages":"Article 111332"},"PeriodicalIF":8.9,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144772924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Luteolin and glycyrrhetinic exert cooperative effect on liver cancer by selfassembling into carrier-free nanostructures","authors":"Lanlan Zong ,&nbsp;Yuxin Dai ,&nbsp;Jiahao Xu,&nbsp;Chaofeng Qiao,&nbsp;Yao Qi,&nbsp;Chengyuan Ma,&nbsp;Hong Li,&nbsp;Xiaobin Pang,&nbsp;Xiaohui Pu","doi":"10.1016/j.cclet.2025.111325","DOIUrl":"10.1016/j.cclet.2025.111325","url":null,"abstract":"<div><div>Liver cancer is the fourth cause of cancer-related deaths and the primary cause of death in patients with compensated cirrhosis. In recent years, the role of traditional Chinese medicine in the treatment of liver cancer has attracted more and more attention and recognition. Luteolin (LUT) and glycyrrhetinic (GA) are natural compounds extracted from Chinese herbal medicine. LUT exhibits various biological activity including anti-inflammatory, antibacterial, antiviral, anti-tumor, and neuroprotective effects. GA significantly inhibits the growth and metastasis of cancer cells. However, the low water solubility of both compounds hinders their clinical applications. In this study, rod-shaped nanoparticles (NPs) self-assembled from LUT and GA were designed to enhance drug solubility and tumor-targeting capability. We verified that the assembly mechanism of the NPs was <em>π</em>-<em>π</em> stacking. These NPs significantly inhibited the proliferation of liver cancer cells while had no significant effect on normal liver cells. In a mouse model of liver cancer, these NPs demonstrated superior tumor-targeting ability due to the enhanced permeability and retention effect, and the affinity of GA for liver cancer cells, resulting in better therapeutic efficacy with lower systemic toxicity. Results of network pharmacology analysis showed that LUT and GA respectively targeted estrogen receptor 1 (ESR1) protein and cyclin-dependent kinase 1 (CDK1) protein to corporately induce tumor cell cycle arrest, which induced the inhibition of tumor cell proliferation. In conclusion, this study provides a novel reference for the treatment of liver cancer.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"36 10","pages":"Article 111325"},"PeriodicalIF":9.4,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144670865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}