Chinese Journal of Chemistry最新文献_第4页

Solvent-Mediated Stimuli Responsive Phosphors Based on Phosphine-Copper Iodide Hybrid Complexes for Information Encryption 基于磷化氢-碘化铜杂化配合物的信息加密溶剂介导刺激响应荧光粉

IF 5.5 1区化学

Chinese Journal of Chemistry Pub Date : 2025-05-02 DOI: 10.1002/cjoc.70058

Yun-Ting Li, Jun-Ru Wang, Tian-Li Gao, Qi-Xiang Cai, Jia-Hua Hu, Ying-Xue Yuan

{"title":"Solvent-Mediated Stimuli Responsive Phosphors Based on Phosphine-Copper Iodide Hybrid Complexes for Information Encryption","authors":"Yun-Ting Li, Jun-Ru Wang, Tian-Li Gao, Qi-Xiang Cai, Jia-Hua Hu, Ying-Xue Yuan","doi":"10.1002/cjoc.70058","DOIUrl":"https://doi.org/10.1002/cjoc.70058","url":null,"abstract":"<div>\u0000 \u0000 <p>Stimuli responsive phosphors with photoluminescence and thermoresponsive luminescence are intriguing for information encryption applications. Herein, two solvent-mediated, stimuli responsive phosphors based on phosphine-copper(I) iodide complexes <b>1</b> and <b>2</b> are reported. Complex <b>1</b> exhibited temperature- and excitation-wavelength-dependent dual-emission characteristics, displaying high energy (HE) and low energy (LE) bands with the quantum yield (QY) of 38.5% under 365 nm irradiation; but complex <b>2</b> exhibited no emission. The LE emission can be attributed to a triplet halide-to-metal charge transfer (<sup>3</sup>XMCT) and copper-centered 4d→3s, 3p transitions, whereas the HE emission originates from a triplet halide-to-ligand charge-transfer (<sup>3</sup>XLCT). Importantly, in complex <b>2</b>, the strong C—H∙∙∙Cl interaction in the supramolecular crystal lattice annihilated the sensitive cluster centered (<sup>3</sup>CC) excited state. Intriguingly, only the HE emission band of complex <b>2</b> can be successfully activated by high-energy excitation or changing the temperature. Nevertheless, the QY of complex <b>2</b> is 15.6% under 310 nm irradiation, which is smaller than that of complex <b>1</b> of 49.8%. This behavior was further confirmed by heating, where both complexes show HE emission. The reversible crystal transformation between complexes <b>1</b> and <b>2</b> was achieved. Furthermore, the reversible excitation-wavelength-dependent dual-emission and thermoresponsive properties make these phosphors suitable candidates for anti-counterfeiting and information encryption applications.</p>\u0000 <p>\u0000 </p>\u0000 </div>","PeriodicalId":151,"journal":{"name":"Chinese Journal of Chemistry","volume":"43 16","pages":"1953-1960"},"PeriodicalIF":5.5,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144624696","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}

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IF 5.5 1区化学

Chinese Journal of Chemistry Pub Date : 2025-05-01 DOI: 10.1002/cjoc.70077

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Anomaly Detection Algorithm for Searching Selective Catalyst Differentiating Linear and Cyclic Alkanes in Oxidation 氧化过程中判别线性烷烃和环烷烃选择性催化剂的异常检测算法

IF 5.5 1区化学

Chinese Journal of Chemistry Pub Date : 2025-04-30 DOI: 10.1002/cjoc.70046

Jiaxing Liu, Pengkun Su, Bingling Dai, Da Zhou, Cheng Wang

{"title":"Anomaly Detection Algorithm for Searching Selective Catalyst Differentiating Linear and Cyclic Alkanes in Oxidation","authors":"Jiaxing Liu, Pengkun Su, Bingling Dai, Da Zhou, Cheng Wang","doi":"10.1002/cjoc.70046","DOIUrl":"https://doi.org/10.1002/cjoc.70046","url":null,"abstract":"<div>\u0000 \u0000 <p>Selective catalysis, particularly when differentiating substrates with similar reactivities in a mixture, is a significant challenge. In this study, anomaly detection algorithms—tools traditionally used for identifying outliers in data cleaning—are applied to catalyst screening. We focus on developing catalytic methods to selectively oxidize cyclic alkanes over linear alkanes in mixtures such as naphtha. By inserting cyclohexane oxidation data one by one into a database of <i>n</i>-hexane oxidization, we used several anomaly detection algorithms to evaluate whether the inserted cyclohexane oxidation data could be considered anomalous. Conditions identified as anomalies imply that they are likely not suitable for <i>n</i>-hexane oxidization. As these anomalies come from conditions for cyclohexane oxidation, they are promising conditions for selective oxidation of cyclohexane while leaving <i>n</i>-hexane unaltered. These anomalies were thus further investigated, leading to the discovery of a specific catalytic approach that selectively oxidizes cyclohexane. This application of anomaly detection offers a novel method to search for selective catalyst for chemical reactions involving mixed substrates.</p>\u0000 <p>\u0000 </p>\u0000 </div>","PeriodicalId":151,"journal":{"name":"Chinese Journal of Chemistry","volume":"43 14","pages":"1685-1690"},"PeriodicalIF":5.5,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144292735","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

Controlled Assembly of [3+6] and [4+8] Porous Organic Cages for Rapid Removal of Iodide from Water 控制组装[3+6]和[4+8]多孔有机笼快速去除水中的碘化物

IF 5.5 1区化学

Chinese Journal of Chemistry Pub Date : 2025-04-30 DOI: 10.1002/cjoc.70053

Guoshi Zhang, Jiajia Sheng, Wenjing Wang, Kongzhao Su, Daqiang Yuan

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Highly Enantioselective Formal Synthesis of (+)-Treprostinil Enabled by Rhodium-Catalyzed Enyne Cycloisomerization 铑催化的炔环异构化使(+)- treprostiil具有高度对映选择性的形式合成

IF 5.5 1区化学

Chinese Journal of Chemistry Pub Date : 2025-04-30 DOI: 10.1002/cjoc.70043

Yan Zong, Shuang Gao, Xiaomei Zou, Qiuchen Huang, Gen-Qiang Chen, Xumu Zhang

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An Imidazole-Based Halogen-Bonded Organic Framework for the High-Sensitive Detection of Nitrofuran Antibiotics 咪唑基卤素键合有机骨架用于硝基呋喃类抗生素的高灵敏度检测

IF 5.5 1区化学

Chinese Journal of Chemistry Pub Date : 2025-04-25 DOI: 10.1002/cjoc.70054

Shumeng Wang, Zhennan Tian, Guanfei Gong, Jiahao Zhao, Hongqiang Dong, Xuguan Bai, Lu Wang, Shigui Chen

{"title":"An Imidazole-Based Halogen-Bonded Organic Framework for the High-Sensitive Detection of Nitrofuran Antibiotics","authors":"Shumeng Wang, Zhennan Tian, Guanfei Gong, Jiahao Zhao, Hongqiang Dong, Xuguan Bai, Lu Wang, Shigui Chen","doi":"10.1002/cjoc.70054","DOIUrl":"https://doi.org/10.1002/cjoc.70054","url":null,"abstract":"<div>\u0000 \u0000 <p>Nitrofuran antibiotics threaten human health and the environment due to their toxicity and persistence. Their detection is challenging due to low concentrations and interference, while fluorescence sensing offers superior sensitivity and selectivity for effective monitoring. In this work, a novel halogen-bonded organic framework, <b>XOF-TPEM</b>, was introduced, constructed using an imidazole-based ligand AIE molecule, <b>TPEM</b>. The framework was successfully characterized by various techniques, including <sup>1</sup>H NMR, PXRD, XPS, FT-IR, HRTEM, SAED, SEM and EDS, confirming its excellent crystalline structure. As <b>TPEM</b> is an electron-donating AIE fluorophore, the fluorescent <b>XOF-TPEM</b> demonstrates potential as a selective sensor for electron-deficient nitrofuran antibiotics. Experimental results show that it exhibits high sensitivity and selectivity for detecting nitrofurans such as NFT, FZD, FLD, and NFZ, with LODs of 9.7 ppb, 11.0 ppb, 19.7 ppb, and 236.1 ppb, respectively. Mechanistic studies indicate that the outstanding fluorescence detection performance is attributed to the inner-filter effect occurring between <b>XOF-TPEM</b> and the nitrofuran antibiotics. Through comparison with the sensing performance of a pyridine-based XOF, the superiority of imidazole ligands in constructing XOFs is demonstrated. This study presents a novel luminescent halogen-bonded organic framework and highlights the superiority of imidazole-based halogen-bonded organic frameworks, underscoring their significant potential for expanding their functional applications.</p>\u0000 <p>\u0000 </p>\u0000 </div>","PeriodicalId":151,"journal":{"name":"Chinese Journal of Chemistry","volume":"43 15","pages":"1824-1832"},"PeriodicalIF":5.5,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144520214","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}

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Cobalt Complexes Featuring N,O-Bidentate Ligands with N-Oxide Moieties: Synthesis, Characterization and Catalytic Activity in Acceptorless Dehydrogenative Coupling of Benzylic Alcohols with Aryl Amines 含N-氧化物的N， o -双齿配体钴配合物的合成、表征及其在苯甲酸与芳胺无受体脱氢偶联中的催化活性

IF 5.5 1区化学

Chinese Journal of Chemistry Pub Date : 2025-04-25 DOI: 10.1002/cjoc.70051

Xuefeng Jia, Yuxin Yan, Chen Yang, Yaqi Wang, Xianqiang Huang

{"title":"Cobalt Complexes Featuring N,O-Bidentate Ligands with N-Oxide Moieties: Synthesis, Characterization and Catalytic Activity in Acceptorless Dehydrogenative Coupling of Benzylic Alcohols with Aryl Amines","authors":"Xuefeng Jia, Yuxin Yan, Chen Yang, Yaqi Wang, Xianqiang Huang","doi":"10.1002/cjoc.70051","DOIUrl":"https://doi.org/10.1002/cjoc.70051","url":null,"abstract":"<div>\u0000 \u0000 <p>The transition metal-catalyzed acceptorless dehydrogenative coupling of alcohols and amines is one of the attractive and important strategies for the construction of C=N bonds from the perspective of environmental friendliness and economy. Herein, we report the synthesis of four novel phosphine-free cobalt(II) complexes (<b>Co-1</b>—<b>Co-4</b>) with N,O-bidentate ligands incorporating N-oxide units and their catalytic activity in acceptorless dehydrogenative coupling of benzylic alcohols and aryl amines. X-ray diffraction analyses revealed that the central cobalt atoms in three of the cobalt complexes (<b>Co-1</b>, <b>Co-2</b>, <b>Co-4</b>) were six-coordinated and adopted an octahedral geometry configuration. Catalytic evaluation of cobalt complexes demonstrated that <b>Co-4</b> exhibited higher activity than the other three cobalt complexes. This system could provide a series of corresponding imine products with good functional groups compatibility and high yields. Especially, the use of phosphine-free and inexpensive cobalt complexes, along with readily accessible N,O-bidentate ligands featuring N-oxide moieties, offers significant advantages for this reaction.</p>\u0000 <p>\u0000 </p>\u0000 </div>","PeriodicalId":151,"journal":{"name":"Chinese Journal of Chemistry","volume":"43 15","pages":"1789-1796"},"PeriodicalIF":5.5,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144520176","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}

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In-Situ Exsolved Metal Nanoparticles for Solid Oxide Fuel Cell Anode: Mechanism, Design Strategies and Application 原位外溶金属纳米颗粒用于固体氧化物燃料电池阳极：机理、设计策略及应用

IF 5.5 1区化学

Chinese Journal of Chemistry Pub Date : 2025-04-25 DOI: 10.1002/cjoc.70003

Xiongzhuang Li, Xinwei Su, Qiao Yuan, Mengting Wang, Wei Kong, Shanliang Chen, Petr Senin, Daifen Chen, Ting Chen, Tao Wei

{"title":"In-Situ Exsolved Metal Nanoparticles for Solid Oxide Fuel Cell Anode: Mechanism, Design Strategies and Application","authors":"Xiongzhuang Li, Xinwei Su, Qiao Yuan, Mengting Wang, Wei Kong, Shanliang Chen, Petr Senin, Daifen Chen, Ting Chen, Tao Wei","doi":"10.1002/cjoc.70003","DOIUrl":"https://doi.org/10.1002/cjoc.70003","url":null,"abstract":"<div>\u0000 \u0000 <section>\u0000 \u0000 <h3> Comprehensive Summary</h3>\u0000 \u0000 <p>Solid oxide fuel cell (SOFC) is recognized as the third-generation fuel cell which transforms the chemical energy of different fuels directly into electrical energy with highly efficient. However, the sulfur poisoning and carbon deposition at high temperatures at the anode side hindered its commercialization. Using perovskite anodes combined with the <i>in-situ</i> exsolution (ISE) method has been extensively developed aimed at alleviating the above problems. This review is trying to depict a systematic overview of the mechanism of the ISE process, the strategies for designing ISE, and its application in SOFC anodes. We hope that this work could give a comprehensive understanding of future anodes for SOFC.</p>\u0000 \u0000 <p>\u0000 </p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Key Scientists</h3>\u0000 \u0000 <p>\u0000 </p>\u0000 </section>\u0000 </div>","PeriodicalId":151,"journal":{"name":"Chinese Journal of Chemistry","volume":"43 14","pages":"1707-1730"},"PeriodicalIF":5.5,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144292755","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}

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Palladium-Catalyzed [3+2+1]/[4+2] Heteroannulation of Allylamines with CO and 1,4-Enynes Leading to 1,7,8,8a-Tetrahydroisoquinolin-3(2H)-ones 钯催化的烯丙胺与CO和1,4-炔的[3+2+1]/[4+2]杂环合成1,7,8,8a-四氢异喹啉-3(2H)-酮

IF 5.5 1区化学

Chinese Journal of Chemistry Pub Date : 2025-04-25 DOI: 10.1002/cjoc.70048

Qi Xue, Yang Li, Fu-Jin Sun, Ming Hu, Hu Cai, Jin-Heng Li

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Synthesis of trans-2-(Disubstituted-amino)alkenyl Polyoxyperfluoroalkyl Ketones from Tertiary Amines and Perfluoroalkyl Ether Carboxylates Featuring “–CF2O–” Units† 叔胺和含“- cf2o -”单位的全氟烷基醚羧酸酯合成反式-2-（二取代氨基）烯基聚氟烷基酮

IF 5.5 1区化学

Chinese Journal of Chemistry Pub Date : 2025-04-25 DOI: 10.1002/cjoc.70055

Qin-Yuan Ni, Shiyu Zhao, Chengying Wu, Yong Guo, Ji-Chang Xiao

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