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Photofunctional cyclophane host–guest systems
IF 4.9 2区 化学
Chemical Communications Pub Date : 2025-01-24 DOI: 10.1039/d4cc06070a
Swadhin Garain, Frank Würthner
{"title":"Photofunctional cyclophane host–guest systems","authors":"Swadhin Garain, Frank Würthner","doi":"10.1039/d4cc06070a","DOIUrl":"https://doi.org/10.1039/d4cc06070a","url":null,"abstract":"Modulation of optical properties through smart protein matrices is exemplified by a few examples in nature such as rhodopsin (absorption wavelength tuning) and the green fluorescence protein (emission), but in general, the scope found in nature for the matrix-controlled photofunctions remains rather limited. In this review, we present cyclophane-based supramolecular host–guest complexes for which electronic interactions between the cyclophane host and mostly planar aromatic guest molecules can actively modulate excited-state properties in a more advanced way involving both singlet and triplet excited states. We begin by highlighting photofunctional host–guest systems for on–off fluorescence switching and chiroptical functions using bay-functionalized perylene bisimide cyclophanes. Next, we examine the impact of π-extension in perylene bisimide cyclophanes for multiple guest binding, showcasing photofunctional properties including circularly polarized luminescence (CPL). We then focus on triplet-generating cyclophanes, <em>i.e.</em> coronene bisimide cyclophane, with high intersystem crossing (ISC) rates, where we demonstrate modulation of excited state pathways upon guest encapsulation and triplet sensitization through phosphorescence and thermally activated delayed fluorescence (TADF). Furthermore, using supramolecular strategies, we advance non-covalent designs, involving either heavy-atom-based Pt(acac)<small><sub>2</sub></small> guests or heavy-atom free charge transfer complexes, for triplet harvesting under ambient conditions and demonstrate the role of supramolecular nanoenvironments in stabilizing triplet excitons in aerated solutions. Additionally, we showcase examples for triplet–triplet annihilation (TTA) upconversion in defined cyclophane complexes in aqueous solutions and the application of host–guest chemistry in organic light-emitting diodes (OLEDs).","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"64 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143026822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Multi-site enzymatic repairing amplification (MSERA) enables ultrasensitive detection of terminal deoxynucleotidyl transferase activity
IF 4.9 2区 化学
Chemical Communications Pub Date : 2025-01-24 DOI: 10.1039/d4cc06112h
Dianming Zhou, Tao Meng, Dalong Zhang, Jianyu Zhang, Zhongze Fang, Xiaoqun Gong, Zhiyong Qian, Mingyue Zhang
{"title":"Multi-site enzymatic repairing amplification (MSERA) enables ultrasensitive detection of terminal deoxynucleotidyl transferase activity","authors":"Dianming Zhou, Tao Meng, Dalong Zhang, Jianyu Zhang, Zhongze Fang, Xiaoqun Gong, Zhiyong Qian, Mingyue Zhang","doi":"10.1039/d4cc06112h","DOIUrl":"https://doi.org/10.1039/d4cc06112h","url":null,"abstract":"A novel multi-site enzymatic repairing amplification strategy is developed for high-sensitive terminal deoxynucleotidyl transferase quantification through combining enzymatic repairing amplification and lesion base-involved terminal extension. This method may provide a sensitive and flexible tool for molecular diagnosis and drug discovery.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"15 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143026825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Construction of Laccase/CeO2/attapulgite nanocomposite for photoenzymatic catalytic CO2 reduction coupled with biomass oxidation
IF 4.9 2区 化学
Chemical Communications Pub Date : 2025-01-24 DOI: 10.1039/d4cc06356b
Huaimin Tian, Yao Xiao, Chao Yao, Taoli Huhe, Xiazhang Li
{"title":"Construction of Laccase/CeO2/attapulgite nanocomposite for photoenzymatic catalytic CO2 reduction coupled with biomass oxidation","authors":"Huaimin Tian, Yao Xiao, Chao Yao, Taoli Huhe, Xiazhang Li","doi":"10.1039/d4cc06356b","DOIUrl":"https://doi.org/10.1039/d4cc06356b","url":null,"abstract":"Herein, a photoenzymatic synergistic catalytic material, i.e. Laccase/CeO2/attapulgite, was prepared for simultaneous CO2 conversion and biomass conversion. Based on the synergistic effect of photoenzyme in the prepared composites, a remarkable CO (27.15 umol gcat-1 h-1) and CH4 (64.88 umol gcat-1h-1) production rateand a benzaldehyde yield of 84.1% were gained.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"34 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143026826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
HfO2-based ferroelectric synaptic devices: challenges and engineering solutions.
IF 4.3 2区 化学
Chemical Communications Pub Date : 2025-01-24 DOI: 10.1039/d4cc05293e
Taegyu Kwon, Hyeong Seok Choi, Dong Hyun Lee, Dong Hee Han, Yong Hyeon Cho, Intak Jeon, Chang Hwa Jung, Hanjin Lim, Taehwan Moon, Min Hyuk Park
{"title":"HfO<sub>2</sub>-based ferroelectric synaptic devices: challenges and engineering solutions.","authors":"Taegyu Kwon, Hyeong Seok Choi, Dong Hyun Lee, Dong Hee Han, Yong Hyeon Cho, Intak Jeon, Chang Hwa Jung, Hanjin Lim, Taehwan Moon, Min Hyuk Park","doi":"10.1039/d4cc05293e","DOIUrl":"https://doi.org/10.1039/d4cc05293e","url":null,"abstract":"<p><p>HfO<sub>2</sub>-based ferroelectric memories have garnered significant attention for their potential to serve as artificial synaptic devices owing to their scalability and CMOS compatibility. This review examines the key material properties and challenges associated with HfO<sub>2</sub>-based ferroelectric artificial synaptic devices as well as the recent advancements in engineering strategies to improve their synaptic performance. The fundamental physics and material properties of HfO<sub>2</sub>-based ferroelectrics are reviewed to understand the theoretical origin of the aforementioned technical issues in ferroelectric HfO<sub>2</sub>-based synaptic devices. Based on the understanding, strategies to resolve the various technical issues from the device to array level are discussed, along with reviewing important progresses in recent studies. Based on these recent technical advancements, new perspectives to achieve high performance and highly reliable HfO<sub>2</sub>-based ferroelectric synaptic devices and their array are provided.</p>","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":" ","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143031664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Constructing Well-dispersed Active Phase via Spontaneous Redox for Electrochemical Nitrate Reduction to Ammonia 通过自发氧化还原构建分散良好的活性相电化学还原硝酸盐制氨
IF 4.9 2区 化学
Chemical Communications Pub Date : 2025-01-23 DOI: 10.1039/d5cc00005j
Huiqun Cao, Bin Liang, Wenda Chen, Shenghua Ye, Jianhong Liu, Qianling Zhang
{"title":"Constructing Well-dispersed Active Phase via Spontaneous Redox for Electrochemical Nitrate Reduction to Ammonia","authors":"Huiqun Cao, Bin Liang, Wenda Chen, Shenghua Ye, Jianhong Liu, Qianling Zhang","doi":"10.1039/d5cc00005j","DOIUrl":"https://doi.org/10.1039/d5cc00005j","url":null,"abstract":"In this study, a distinctive multiple core-shell structure of Co nanoparticles inserted into N-doped carbon dodecahedron@Co hydroxide (Co/NCD@Co(OH)2) was synthesized via a spontaneous redox reaction between metallic Co and NO3-, ultimately materializing the fine dispersion and exposure of the active sites. The electronic interaction existing between the Co/NCD core and the Co(OH)2 shell brings a synergistic effect, conspicuously lessens the overpotential, and reinforces the yield-rate and Faradaic efficiency of NH3 for electrochemical nitrate-ammonia conversion. This study underlines the spontaneous redox between catalysts and substrate, rendering it as a synthetic strategy for designing genuine and well-dispersed active sites.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"75 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143020826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Ultrarapid and efficient sequestration of iodate and iodide with a pillar[5]arene-based cationic polymeric network 柱状[5]芳烃基阳离子聚合物网络超快速高效地隔离碘酸盐和碘化物
IF 4.9 2区 化学
Chemical Communications Pub Date : 2025-01-23 DOI: 10.1039/d4cc05758a
Yongjie Jiang, Yue Qi, Chengkan Yu, Liancheng Hu, Qing Li, Xiaowei Li, Yimin Cai, Lihua Yuan, Wen Feng
{"title":"Ultrarapid and efficient sequestration of iodate and iodide with a pillar[5]arene-based cationic polymeric network","authors":"Yongjie Jiang, Yue Qi, Chengkan Yu, Liancheng Hu, Qing Li, Xiaowei Li, Yimin Cai, Lihua Yuan, Wen Feng","doi":"10.1039/d4cc05758a","DOIUrl":"https://doi.org/10.1039/d4cc05758a","url":null,"abstract":"A macrocycle-based approach to construction of a cationic polymeric network with pillar[5]arene as nodes for efficient sequestration of hazardous IO<small><sub>3</sub></small><small><sup>–</sup></small> and I<small><sup>–</sup></small> is presented. Ultrafast kinetics (ca. 4 min) was achieved along with excellent adsorption capacities for both IO<small><sub>3</sub></small><small><sup>–</sup></small> (456 mg g<small><sup>-1</sup></small>) and I<small><sup>–</sup></small> (370 mg g<small><sup>-1</sup></small>), good selectivity, and outstanding reusability. This work showcases the merit of pillar[5]arene as nodes in cationic adsorption materials in removal of anionic iodine species.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"38 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143020827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Solvent-Controlled Silver Catalyzed Radical Transformation of α-Imino-Oxy Acids with Cyclic Aldimines
IF 4.9 2区 化学
Chemical Communications Pub Date : 2025-01-23 DOI: 10.1039/d4cc05675b
Jingjing Wang, Yuran Qin, Ke Cui, Xueqi Li, Mingyue Cui, Sheng Cao, Linbo Zhang, Qin Shen, Teng Wang, Feng Li
{"title":"Solvent-Controlled Silver Catalyzed Radical Transformation of α-Imino-Oxy Acids with Cyclic Aldimines","authors":"Jingjing Wang, Yuran Qin, Ke Cui, Xueqi Li, Mingyue Cui, Sheng Cao, Linbo Zhang, Qin Shen, Teng Wang, Feng Li","doi":"10.1039/d4cc05675b","DOIUrl":"https://doi.org/10.1039/d4cc05675b","url":null,"abstract":"A silver-catalyzed cross coupling of cyclic aldimines and α-imino-oxy acids has been developed. The solvent-dependent reaction could selectively deliver either cyclic imine moiety retained nitriles or ring-opened oxonitriles in moderate to good yields, each of which are synthetic important building blocks inaccessible by classical one-step procedures. The mechanistic studies show that the reaction undergoes a radical pathway in which an iminyl radical intermediate is involved, followed by β-carbon scission and trapping to give the remote functionalized nitriles.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"12 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143026859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Rhodium/Selenium Dual Catalysis for Accessing 2-Aminopyrroles from N-Sulfonyl-1,2,3-triazoles 铑/硒双催化从n -磺酰基-1,2,3-三唑中获得2-氨基吡咯
IF 4.9 2区 化学
Chemical Communications Pub Date : 2025-01-23 DOI: 10.1039/d4cc06346e
Chandra Volla, Kuntal Pal, Om Prakash Dash
{"title":"Rhodium/Selenium Dual Catalysis for Accessing 2-Aminopyrroles from N-Sulfonyl-1,2,3-triazoles","authors":"Chandra Volla, Kuntal Pal, Om Prakash Dash","doi":"10.1039/d4cc06346e","DOIUrl":"https://doi.org/10.1039/d4cc06346e","url":null,"abstract":"Herein, we report a novel rhodium/selenium dual catalytic process for the synthesis of 2-aminopyrroles from N-sulfonyl-1,2,3-triazoles. The proposed cooperative catalytic mechanism involves Rh(II)-catalyzed formation of Rh-azavinyl carbene from triazole, followed by selenium-catalyzed generation of ylide, which subsequently undergoes annulation with another Rh-azavinyl carbene. The simple and mild dual catalytic strategy accommodates a variety of electron-withdrawing and electron-donating functional groups, affording various 2-aminopyrrole derivatives in moderate to good yields.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"12 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143020822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Enhancing selectivity of β-O-4 bond cleavage for lignin depolymerization via a sacrificial anode.
IF 4.3 2区 化学
Chemical Communications Pub Date : 2025-01-23 DOI: 10.1039/d4cc06313a
Zihan Yu, Zhenghui Huang, Linbin Jiang, Wei Li
{"title":"Enhancing selectivity of β-O-4 bond cleavage for lignin depolymerization <i>via</i> a sacrificial anode.","authors":"Zihan Yu, Zhenghui Huang, Linbin Jiang, Wei Li","doi":"10.1039/d4cc06313a","DOIUrl":"https://doi.org/10.1039/d4cc06313a","url":null,"abstract":"<p><p>Herein, we report a novel electrochemical hydrogenolysis method for β-O-4 bond cleavage by using carbon foam as the cathode and waste aluminum as the anode. The reaction takes place at the cathode, producing ketones and phenolic compounds. Employing waste aluminum as the anode could avoid anodic excessive oxidation of phenols.</p>","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":" ","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143021277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Polarity-sensitive pyrene fluorescent probes for multi-organelles imaging in living cells 极性敏感芘荧光探针用于活细胞多细胞器成像
IF 4.9 2区 化学
Chemical Communications Pub Date : 2025-01-23 DOI: 10.1039/d5cc00097a
Linshuai Yang, Ying Cao, Xiaoyu Bu, Fei Peng, Qi Ai, Baoxiang Gao
{"title":"Polarity-sensitive pyrene fluorescent probes for multi-organelles imaging in living cells","authors":"Linshuai Yang, Ying Cao, Xiaoyu Bu, Fei Peng, Qi Ai, Baoxiang Gao","doi":"10.1039/d5cc00097a","DOIUrl":"https://doi.org/10.1039/d5cc00097a","url":null,"abstract":"Polarity-sensitive probes (PAS) were synthesized through the attachment of azetidine and sulfonyl substituents to the pyrene fluorescent core. The emission peaks and fluorescence lifetimes of these PAS probes exhibit a high sensitivity to polarity, enabling the visualization of microenvironmental characteristics and dynamics across multiple organelles.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"27 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143020803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
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