Chinese Chemical Letters最新文献_第3页

Cucurbit[7]uril-confined cascade assembly of cyclodextrin phosphor derivative achieving multicolor delayed luminescence for information encryption 用于信息加密的多色延迟发光环糊精荧光粉衍生物的葫芦[7]脲约束级联组装

IF 8.9 1区化学

Chinese Chemical Letters Pub Date : 2026-05-01 Epub Date: 2025-06-10 DOI: 10.1016/j.cclet.2025.111419

Jie Niu , Xuan Wu , Jie Yu , Zhuo Lei , Ying-Ming Zhang , Li-Hua Wang , Yu Liu

{"title":"Cucurbit[7]uril-confined cascade assembly of cyclodextrin phosphor derivative achieving multicolor delayed luminescence for information encryption","authors":"Jie Niu , Xuan Wu , Jie Yu , Zhuo Lei , Ying-Ming Zhang , Li-Hua Wang , Yu Liu","doi":"10.1016/j.cclet.2025.111419","DOIUrl":"10.1016/j.cclet.2025.111419","url":null,"abstract":"<div><div>Macrocyclic cascade supramolecular assembly could significantly enhance the fluorescence/phosphorescence resonance energy transfer (F/PRET) efficiency through macrocyclic and spatial dual confinement effect. Herein, we reported a cascade supramolecular assembly containing 6-bromoisoquinolinium-modified permethylated cyclodextrin (BQ-PCD), cucurbit[7]uril (CB[7]), and tetra(4-sulfonatophenyl)porphyrin (TPPS), in which the enhanced PRET from 6-bromoisoquinolinium (BQ) to TPPS could be achieved through the dual macrocyclic confinement for multicolor delayed luminescence and information encryption. In TPPS⊂BQ-PCD⊂CB[7], pure organic room temperature phosphorescence of BQ-PCD at 530 nm is induced by CB[7] macrocyclic confinement, which further transferred to TPPS <em>via</em> spatial confinement, achieving delayed fluorescence at 645 and 715 nm with high PRET efficiency and quantum yield (17.9 %). Meanwhile, reversible TPPS concentration-dependent multicolor luminescence was achieved in presence of competitive guest (methionine peptide), followed by porphyrin-photosensitization process, being applied in information encryption. This research presents a facile strategy for efficient PRET through macrocyclic cascade confinement assembly.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"37 5","pages":"Article 111419"},"PeriodicalIF":8.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186602","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}

引用次数: 0

Understanding hydrogen-bonded organic frameworks in the separation of noble gases and lighter hydrocarbons 了解稀有气体和较轻碳氢化合物分离中的氢键有机框架

IF 8.9 1区化学

Chinese Chemical Letters Pub Date : 2026-05-01 Epub Date: 2025-11-21 DOI: 10.1016/j.cclet.2025.112142

Brij Mohan , Rakesh Kumar Gupta , Matlab Khamiyev , Xiaoping Zhang , Ismayil M. Garazade , M. Fátima C. Guedes da Silva , Armando J.L. Pombeiro , Wei Sun

引用次数: 0

Vanadium nitride-assisted electronic engineering of platinum for enhanced electrocatalytic hydrogen oxidation and CO tolerance 氮化钒辅助铂的电子工程，用于增强电催化氢氧化和CO耐受性

IF 8.9 1区化学

Chinese Chemical Letters Pub Date : 2026-05-01 Epub Date: 2025-09-18 DOI: 10.1016/j.cclet.2025.111860

Xu Zhang, Bin Cai, Tianyu Han, Ziyun Li, Ying Xie, Lei Wang

{"title":"Vanadium nitride-assisted electronic engineering of platinum for enhanced electrocatalytic hydrogen oxidation and CO tolerance","authors":"Xu Zhang, Bin Cai, Tianyu Han, Ziyun Li, Ying Xie, Lei Wang","doi":"10.1016/j.cclet.2025.111860","DOIUrl":"10.1016/j.cclet.2025.111860","url":null,"abstract":"<div><div>The high sensitivity of platinum (Pt)-based catalysts to CO during the hydrogen oxidation reaction (HOR) at the anode is one of the key issues for the long-term stable development of proton exchange membrane fuel cells (PEMFCs). Modulating the electronic structure of Pt is considered an effective approach to enhancing HOR activity and improving CO tolerance. Herein, we utilized the synergistic effect between the transition metal interstitial compounds (TMICs) of VN and Pt to develop a Pt-VN heterojunction-loaded carbon nanofiber catalyst (Pt-VN/NCNF) for CO tolerance in HOR. The introduction of VN causes electronic orbitals rearrangement of Pt, thereby optimizing the adsorption of H on the Pt surface. Meanwhile, the overlap of the d-band of the electron-deficient Pt with the 1π and 5σ bonding orbitals of CO was significantly reduced, which suppresses the strong CO adsorption on Pt surfaces and leave more active sites for H<sub>2</sub> adsorption and oxidation. As a result, Pt-VN/NCNF exhibits a mass activity of 1.26 mA/µg<sub>Pt</sub>, 41 times higher than that of commercial Pt/C. Encouragingly, Pt-VN/NCNF maintains 96.7 % of its original activity even in the presence of 1000 ppm CO. As anticipated, Pt-VN/NCNF-based PEMFCs demonstrate superior CO tolerance to Pt/C in H<sub>2</sub>/CO mixtures with CO concentrations ranging from 10 ppm to 1000 ppm.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"37 5","pages":"Article 111860"},"PeriodicalIF":8.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186575","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}

引用次数: 0

Photocatalytic free radical geminal carboamination of α-diazo esters toward chromone-derived α-amino acids α-重氮酯合成铬衍生α-氨基酸的光催化自由基双胺化反应

IF 8.9 1区化学

Chinese Chemical Letters Pub Date : 2026-05-01 Epub Date: 2025-12-02 DOI: 10.1016/j.cclet.2025.112202

Jingyan Liu , Wanting Liang , Changfeng Wan , Jie-Ping Wan

引用次数: 0

Aqueously dispersed homopolypeptide nanotoroids with tunable circularly polarized luminescence 具有可调谐圆偏振发光的水分散的均多肽纳米环

IF 8.9 1区化学

Chinese Chemical Letters Pub Date : 2026-05-01 Epub Date: 2025-09-16 DOI: 10.1016/j.cclet.2025.111844

Yuanpeng Ye , Xinke Hu , Dong Yang , Qianxi Gu , Shangning Liu , Jinhui Jiang , Guofeng Liu , Jianzhong Du

{"title":"Aqueously dispersed homopolypeptide nanotoroids with tunable circularly polarized luminescence","authors":"Yuanpeng Ye , Xinke Hu , Dong Yang , Qianxi Gu , Shangning Liu , Jinhui Jiang , Guofeng Liu , Jianzhong Du","doi":"10.1016/j.cclet.2025.111844","DOIUrl":"10.1016/j.cclet.2025.111844","url":null,"abstract":"<div><div>Aqueously dispersed nanomaterials exhibiting circularly polarized luminescence (CPL) hold great potentials in biological fields due to the inherent chirality of biological systems and its excellent biocompatibility. However, the limited availability of biodegradable CPL nanoparticles in aqueous media has severely constrained the development of biomedical CPL. Here, we present a facile strategy for achieving tunable CPL of aqueously dispersed nanotoroids through the co-assembly of a homopolypeptide with three achiral triphenylamine derivatives, showing a CPL performance depending on the architecture and doping content of small molecules. Remarkably, a deep-red CPL can be achieved with a record luminescence dissymmetry factor (<em>g</em><sub>lum</sub> = 1.1 × 10<sup>−2</sup>) among aqueously polypeptide-based nanoparticles. Furthermore, the densely packed nanostructure completely suppressed the intrinsic reactive oxygen species generation of the chromophores by restricting oxygen diffusion and quenching exciton-energy transfer, thereby eliminating phototoxic risks while preserving imaging fidelity. Overall, this work not only provides a facile method for achieving aqueous CPL from achiral molecules but also establishes a structure-property relationship between chromophore geometry and supramolecular CPL performance, advancing their potential in biological fields.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"37 5","pages":"Article 111844"},"PeriodicalIF":8.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186574","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}

引用次数: 0

Inherently chiral molecular barrels via directional cascade hooping 通过定向级联环的固有手性分子桶

IF 8.9 1区化学

Chinese Chemical Letters Pub Date : 2026-05-01 Epub Date: 2025-06-11 DOI: 10.1016/j.cclet.2025.111443

Hao Zhou , Xu-Dong Wang , Yu-Fei Ao , De-Xian Wang , Qi-Qiang Wang

引用次数: 0

Synergistic H2 production and tetracycline degradation: Unveiling the mechanism of a one-pot synthesized CeO2/CdS photocatalyst 协同制氢和四环素降解：揭示一锅合成CeO2/CdS光催化剂的机理

IF 8.9 1区化学

Chinese Chemical Letters Pub Date : 2026-05-01 Epub Date: 2025-08-14 DOI: 10.1016/j.cclet.2025.111717

Yufeng Gan , Deqian Zeng , Shunyan Ning , Ningchao Zheng , Xinpeng Wang , Yuezhou Wei , Jizhou Jiang

{"title":"Synergistic H2 production and tetracycline degradation: Unveiling the mechanism of a one-pot synthesized CeO2/CdS photocatalyst","authors":"Yufeng Gan , Deqian Zeng , Shunyan Ning , Ningchao Zheng , Xinpeng Wang , Yuezhou Wei , Jizhou Jiang","doi":"10.1016/j.cclet.2025.111717","DOIUrl":"10.1016/j.cclet.2025.111717","url":null,"abstract":"<div><div>Coupling photocatalytic H<sub>2</sub> generation with antibiotic degradation offers a promising strategy for addressing energy and environmental challenges, leveraging the synergistic benefits of these processes. Herein, a novel heterojunction photocatalyst consisting of ultrafine CeO<sub>2</sub> nanoparticles anchored onto CdS nanosheets was prepared using a simple one-pot <em>in-situ</em> hydrothermal method, enabling the simultaneous photocatalytic H<sub>2</sub> generation and tetracycline (TC) degradation. The H<sub>2</sub> generation efficiency of the optimal CeO<sub>2</sub>/CdS (CC-0.10) is 3544 μmol g<sup>-1 </sup>h<sup>-1</sup>, which surpasses pure CdS by 29.3 times. Additionally, TC is degraded by CC-0.10 at a rate constant (<em>k</em> value) of 0.0352 min<sup>-1</sup>, 2.73 times faster than CdS (0.0129 min<sup>-1</sup>). The free radical quenching and electron spin resonance experiments revealed the active involvement of <sup>•</sup>OH and <sup>•</sup>O<sub>2</sub><sup>-</sup> radicals in the TC degradation process. Moreover, the unique CeO<sub>2</sub>/CdS heterojunction photocatalyst was also effective in degrading TC wastewater with an H<sub>2</sub> yield of 1374 μmol g<sup>-1 </sup>h<sup>-1</sup>, displaying its dual performance in simultaneously degrading antibiotic wastewater and producing H<sub>2</sub>. The CeO<sub>2</sub>/CdS type II charge transfer mechanism is confirmed by XPS, EPR, KPFM, fs-TAS, and DFT calculations. This work introduces a promising approach to constructing rare-earth oxide/metal sulfide nanocomposites for addressing the interconnected challenges of energy production and environmental pollution.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"37 5","pages":"Article 111717"},"PeriodicalIF":8.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146102467","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}

引用次数: 0

High-performance bifunctional electrocatalyst (NiFe-LDH/MoNi4) with enhanced chloride corrosion resistance for achieving seawater overall-splitting at industrial temperature 高性能双功能电催化剂（NiFe-LDH/MoNi4），具有增强的耐氯化物腐蚀性，可在工业温度下实现海水的整体分解

IF 8.9 1区化学

Chinese Chemical Letters Pub Date : 2026-05-01 Epub Date: 2025-09-11 DOI: 10.1016/j.cclet.2025.111825

Gang Zhao , Wenbo Liao , Lan Mu , Baojie Zhang , Ning Zhao , Tianyong Zhang , Xijin Xu

{"title":"High-performance bifunctional electrocatalyst (NiFe-LDH/MoNi4) with enhanced chloride corrosion resistance for achieving seawater overall-splitting at industrial temperature","authors":"Gang Zhao , Wenbo Liao , Lan Mu , Baojie Zhang , Ning Zhao , Tianyong Zhang , Xijin Xu","doi":"10.1016/j.cclet.2025.111825","DOIUrl":"10.1016/j.cclet.2025.111825","url":null,"abstract":"<div><div>Nickel-iron double hydroxides are corroded by Cl<sup>−</sup> during seawater electrolysis, which reduces their catalytic activity and stability. Here, a high-performance bifunctional electrocatalyst (NiFe-LDH/MoNi<sub>4</sub>) with enhanced chloride corrosion resistance was synthesized. In the OER process, Mo element in the catalyst was reconstructed to form MoO<sub>4</sub><sup>2−</sup>, which repelled Cl<sup>−</sup> to prevent the catalyst from being corroded. Besides, the heterostructure of NiFe-LDH/MoNi<sub>4</sub> decreased the reduction of HER active site during HER process (Mo element dissolves easily in alkaline media due to thermodynamic instability). Therefore, based on <em>in-situ</em> self-reconstruction of Mo element and heterostructure in alkaline seawater, NiFe-LDH/MoNi<sub>4</sub> delivered a current density of 10 mA/cm<sup>2</sup> for the HER (OER) at industrial temperatures (80 °C) with an overpotential of merely 32 mV (139 mV). Additionally, when NiFe-LDH/MoNi<sub>4</sub> is employed as both the anode and cathode, a battery voltage of just 1.39 V (3.13 V) is sufficient to attain a current density of 10 mA/cm<sup>2</sup> (1 A/cm<sup>2</sup>). The system is also capable of sustained operation at a high current density of 500 mA/cm<sup>2</sup> for a period of 50 h.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"37 5","pages":"Article 111825"},"PeriodicalIF":8.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186572","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}

引用次数: 0

Chemical strategies for the stereoselective construction of 1,2-cis-galacturonic and aminogalacturonic acid glycosides 1,2-顺式半乳糖醛酸苷和氨基半乳糖醛酸苷立体选择性构建的化学策略

IF 8.9 1区化学

Chinese Chemical Letters Pub Date : 2026-05-01 Epub Date: 2025-12-09 DOI: 10.1016/j.cclet.2025.112235

Juntao Cai , Qian Wang , Xu Shen , Lifeng Zhu , Shiqing Jiang , Jian Yin , Chunhong Dong

{"title":"Chemical strategies for the stereoselective construction of 1,2-cis-galacturonic and aminogalacturonic acid glycosides","authors":"Juntao Cai , Qian Wang , Xu Shen , Lifeng Zhu , Shiqing Jiang , Jian Yin , Chunhong Dong","doi":"10.1016/j.cclet.2025.112235","DOIUrl":"10.1016/j.cclet.2025.112235","url":null,"abstract":"<div><div>The stereoselective synthesis of 1,2-<em>cis</em>-galacturonic acid and 2-amino-2-deoxy-galacturonic acid glycosides remains a critical challenge in carbohydrate chemistry owing to the electronic and steric effects imposed by the C5-carboxyl group and C2 substituents. The available synthetic strategies can be divided into two divergent pathways: the construction of the glycan backbone before introducing the carboxyl group and the use of pre-formed uronic acid donors during glycosylation. Key advances include the use of remotely participating acyl groups, conformational control <em>via</em> 3,6-lactone intermediates, chelation-directed anomerisation and steric shielding by bulky protecting groups such as 4,6-<em>O</em>-di-<em>tert</em>-butylsilylene and 4,6-<em>O</em>-benzylidene. This review comprehensively overviews the current strategies that overcome stereo-chemical challenges in the synthesis of 1,2-<em>cis</em>-galacturonic and aminogalacturonic acid–containing glycans. In addition, the application of these methodologies to the synthesis of biologically relevant carbohydrates is examined.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"37 5","pages":"Article 112235"},"PeriodicalIF":8.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186715","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}

引用次数: 0

Bioinspired underwater gas diffusion enhanced by superaerophilic stripe 由超亲氧条纹增强的生物启发水下气体扩散

IF 8.9 1区化学

Chinese Chemical Letters Pub Date : 2026-05-01 Epub Date: 2025-08-13 DOI: 10.1016/j.cclet.2025.111720

Lingyao Zhang , Chunhui Zhang , Yingjia Sun , Qinglin Yang , Ziwei Guo , Xiaoqi Wang , Kang Wang , Lin Zhang , Kesong Liu , Shichao Niu , Cunming Yu , Lei Jiang

{"title":"Bioinspired underwater gas diffusion enhanced by superaerophilic stripe","authors":"Lingyao Zhang , Chunhui Zhang , Yingjia Sun , Qinglin Yang , Ziwei Guo , Xiaoqi Wang , Kang Wang , Lin Zhang , Kesong Liu , Shichao Niu , Cunming Yu , Lei Jiang","doi":"10.1016/j.cclet.2025.111720","DOIUrl":"10.1016/j.cclet.2025.111720","url":null,"abstract":"<div><div>Regulating gas diffusion is essential for a range of natural and industrial processes, including underwater breathing, aeration reactor and energy device. Natural organisms, <em>e.g.</em>, water boatman, utilize their superaerophilic (SAL) abdomen to create a plastron underwater, enabling efficient gas exchange with dissolved oxygen. Herein, inspired by nature, we have developed a superaerophilic stripe that can form an air film underwater to enhance gas diffusion. Increasing the width (<em>w</em>) of the superaerophilic stripe and height (<em>h</em>) of water, along with decreasing the distance between the bubble and the stripe (<em>d</em>), can improve gas diffusion. Due to the improved dissolved gas diffusion, an efficient hydrogen evolution reaction driven by enhanced H<sub>2</sub> diffusion was successfully achieved, resulting in an electrode potential decrease ∼13 mV at the same current density of 1 mA/cm<sup>2</sup> compared to that without the SAL stripe. This research offers important theoretical insights into the dynamics of gas diffusion and presents practical methods for enhancing gas mass transfer.</div></div>","PeriodicalId":10088,"journal":{"name":"Chinese Chemical Letters","volume":"37 5","pages":"Article 111720"},"PeriodicalIF":8.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186615","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}

引用次数: 0