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Intrinsically Stretchable Electroluminescent Materials and Devices CCS Chem. (IF 11.2) Pub Date : 2024-03-23 Wei Liu, Glingna Wang, Sihong Wang
Intrinsically stretchable electroluminescent (EL) devices have emerged as pivotal components with transformative potential in various domains, including wearable technology, medical devices, human–machine interfaces, and communications. This mini-review focuses on the recent progress in the development of intrinsically stretchable EL materials, highlighting milestones and breakthroughs in the field
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The Smallest Monofluorodiazoethane Reagent and Its [3 + 2] Cycloaddition Reactions CCS Chem. (IF 11.2) Pub Date : 2024-03-23 Xiaodong Tang, Ming-Yue He, Ran Guo, Hao-Nan Liu, Jing Nie, Ilan Marek, Jun-An Ma, Fa-Guang Zhang
Given the widespread applications of fluorinated substances in pharmaceuticals, biology, and materials, the development of fluorine-containing building blocks remains an important topic in organic chemistry. In the repertoire of fluorinated diazo compounds, research on tri- and difluorodiazoethane is well-established, but the lack of synthetic methods has left studies related to monofluorodiazoethane
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Supramolecular Polymerization of Hydrogen-Bonded Trimers in Bulk and Aqueous Medium CCS Chem. (IF 11.2) Pub Date : 2024-03-23 Freek V. de Graaf, Stef A. H. Jansen, Sandra M. C. Schoenmakers, Bas van Genabeek, Marle E. J. Vleugels, Bart W. L. van den Bersselaar, E. W. Meijer, Ghislaine Vantomme
Synthetic molecules that form functional noncovalent assemblies in water have received much attention for their potential applications as biomaterials. In this work, we introduce a novel water-compatible monomer based on the phthalhydrazide moiety that assembles into hydrogen-bonded trimeric discs. In bulk, the material exhibits a cylindrical nanostructure in the liquid-crystalline phase at elevated
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Metal Ion-Coordinated Biomolecular Noncovalent Glass with Ceramic-like Mechanics CCS Chem. (IF 11.2) Pub Date : 2024-03-23 Shuai Cao, Wei Fan, Rui Chang, Chengqian Yuan, Xuehai Yan
Glass materials play a vital role in scientific research and engineering applications. Biomolecular noncovalent glasses (BNG), based on amino acids and peptides, have been proposed as the next-generation glass materials to meet the demand of a sustainability and circular economy. However, bulk BNG with remarkable mechanics and tunable photoluminescence are still rare due to the nature of weak noncovalent
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Organochlorides Mediate Oxidation Reactions Induced by Low Dose Ionizing Radiation CCS Chem. (IF 11.2) Pub Date : 2024-03-23 Juncheng Liu, Tobias G. Brevé, Bing Xu, Peter-Leon Hagedoorn, Antonia G. Denkova, Rienk Eelkema
The controlled release of drugs using local ionizing radiation presents a promising approach for targeted cancer treatment, particularly when applied in concurrent radio-chemotherapy. In these approaches, radiation-generated reactive species often play an important role. However, the reactive species that can be used to trigger release have low yield and lack selectivity. Here, we demonstrate the generation
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Using BODIPY Unit to Design Molecular Acceptors with Absorption Wavelength of >1000 nm for Organic Photodetectors CCS Chem. (IF 11.2) Pub Date : 2024-03-22 Yinghui Wang, Jiahui Wang, Junhui Miao, Jun Liu, Lixiang Wang
Near-infrared (NIR) organic photodetectors (OPDs) are promising in flexible electronic and imaging sensor applications. However, high-performance NIR-II OPDs with photoresponse wavelength beyond 1000 nm are rare due to the lack of narrow bandgap molecular acceptors. In this work, an A-D-A′-D-A-type molecular acceptor with an onset absorption wavelength of 1150 nm was developed. Its narrow bandgap was
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Single-Molecule Characterization of van der Waals Contact Between Alkane and Gold CCS Chem. (IF 11.2) Pub Date : 2024-03-22 Hongyu Ju, Jinying Wang, Wangping Liu, Jie Hao, Mengmeng Li, Yanxia Xu, Boyu Wang, Suhang He, Kunrong Mei, Andrew C.-H. Sue, Keqiu Chen, Chuancheng Jia, Xuefeng Guo
Van der Waals (vdW) contact, dominated by weak but ubiquitous vdW interactions, plays a significant role in diverse fields such as supramolecular chemistry, nanotechnology, and surface science. Accurate characterization of vdW contact at the single-molecule level remains challenging. Herein, we combine the scanning tunneling microscope break junction technique with first-principles calculations to
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Construction of Planar Chiral Ferrocenes by Cobalt-Catalyzed Enantioselective C–H Acyloxylation Enabled by Dual Ligands CCS Chem. (IF 11.2) Pub Date : 2024-03-22 Fan-Rui Huang, Peng Zhang, Qi-Jun Yao, Bing-Feng Shi
Oxy-substituted planar chiral ferrocenes are of great importance in asymmetric synthesis and pharmaceuticals. However, enantioselective C–H activation of ferrocenes that form C–O bonds remains a huge challenge and has not yet been reported. Herein, the asymmetric synthesis of oxy-substituted planar chiral ferrocenes is achieved by cobalt-catalyzed enantioselective dehydrogenative C–H acyloxylation
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Remote Boryl and Alkenyl Radical Migration of Olefin-bearing Aryl Bromides CCS Chem. (IF 11.2) Pub Date : 2024-03-21 Chaokun Li, Nan Chen, Tangfeng Yao, Chenchen Zhao, Shangteng Liao, Qiuling Song
Compared with the well-developed radical aromatic ring migration, heteroatomic radical migration and alkenyl radical migration remain challenging. Herein, a photo-induced remote radical migration reaction based on the aromatic skeleton through tetracoordinate boron species has been developed. In this work, commercially available diboron reagent (B2pin2) or alkenyl boron (alkenylBpin) react with o-bromostyrenes
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Identification of Defect Origin and White-light Emission Tuning of Chalcogenide Quantum Dots through Pressure Engineering CCS Chem. (IF 11.2) Pub Date : 2024-03-16 Pengfei Lv, Zhiwei Ma, Jiajia Ning, Guanjun Xiao, Bo Zou
Chalcogenide quantum dots (QDs) are established as promising materials for white-light-emitting applications because of their wide surface defect emission. However, the limited understanding about the origin of defect emission poses challenges in attaining efficient white-light emission. Herein, high pressure is introduced to strengthen the interaction between the different types of ligands and QDs
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Mass spectrometry Imaging Reveals the Redox and Metabolic Heterogeneity CCS Chem. (IF 11.2) Pub Date : 2024-03-16 Jing Han, Huihui Liu, Yafeng Li, Junyu Chen, Ke Jia, Lingwei Meng, Caiqiao Xiong, Suming Chen, Zongxiu Nie
Oxidative stress is associated with various diseases. Therapeutic strategies targeting redox balance regulations have been tested. However, the lack of knowledge about the heterogeneous metabolism and redox balance within different regions of tissues limits the development of redox-targeted therapies. In this study, mass spectrometry imaging was used to profile the redox and metabolic heterogeneity
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Hierarchical On-surface Synthesis of Two-dimensional Networks via Multipoint S⋯N and S⋯H bonding CCS Chem. (IF 11.2) Pub Date : 2024-03-15 Chen-Hui Shu, Li-Xia Kang, Shan-shan Wang, Yan He, Ruo-Xi Zhang, Xuelei Su, Ping Yu, Xingguang Li, Pei-Nian Liu
Although electrostatic bonding between chalcogen atoms and nitrogen has emerged as a powerful driving force in the fabrication of supramolecular structures, this noncovalent bond has not yet been used to link polymers to form networks. Taking advantage of additive enthalpy in forming multipoint noncovalent bonds, in this study we constructed a two-dimensional (2D) network via the hierarchical on-surface
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Bioinspired Total Syntheses of Grayanotoxins II/III, Kalmanol, and Rhodomollacetals A–C with Three Distinct Skeletons CCS Chem. (IF 11.2) Pub Date : 2024-03-15 Hao Cheng, Tianhao Ma, Xiao Liu, Yanxing Jia
Grayanane diterpenoids, which have intricate molecular architecture and interesting pharmacological properties, have attracted considerable interest of organic chemists since 1970s. However, the total syntheses of grayanane diterpenoids have been accomplished by only seven groups, which have mainly focused on the same carbon skeleton. Herein, we disclose the bioinspired total syntheses of six grayanane
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Imidazole-Linked Fully Conjugated Covalent Organic Framework for High-Performance Sodium-Ion Battery CCS Chem. (IF 11.2) Pub Date : 2024-03-15 Lu Liu, Yu Gong, Yifan Tong, Hao Tian, Xubo Wang, Yiming Hu, Shaofeng Huang, Weiwei Huang, Sandeep Sharma, Jingnan Cui, Yinghua Jin, Weitao Gong, Wei Zhang
Covalent organic frameworks (COFs) have garnered increasing attention as promising electrode materials for sodium-ion batteries (SIBs) due to their ordered backbones, uniform pore sizes, and high surface areas. However, they also face challenges, including low capacity, unsatisfactory rate performance, and limited cycling stability, which pose the primary obstacles to their practical use. Herein, a
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Rhodium-Catalyzed Asymmetric Trifluoromethoxylation of Racemic Allylic Trichloroacetimidates CCS Chem. (IF 11.2) Pub Date : 2024-03-11 Liyan Wang, Yafeng Si, Yu-Xin Luan, Pingping Tang
A rhodium/diene catalyzed asymmetric allylic trifluoromethoxylation reaction is reported, which afforded chiral trifluoromethoxylated allylic compounds in 52–97% yields with up to 97% enantiomeric excess. These are the first examples of asymmetric allylic trifluoromethoxylation. The reactions proceed via a dynamic kinetic process that allowed for the use of racemic allylic trichloroacetimidates as
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Cobalt-Catalyzed Electrochemical Enantioselective Reductive Cross-Coupling of Organohalides CCS Chem. (IF 11.2) Pub Date : 2024-03-15 Shi-Shuo Xu, Hui Qiu, Pei-Pei Xie, Zhen-Hua Wang, Xiu Wang, Chao Zheng, Shu-Li You, Tian-Sheng Mei
Transition metal-catalyzed asymmetric reductive coupling of two electrophiles has emerged as a powerful tool for carbon-carbon bond formation, however, the enantioselective reduction cross-coupling of two aryl halides has not been developed and remains a challenge. Herein, we demonstrated the enantioselective reductive cross-coupling of two aryl halides by combining cobalt catalysis with electrochemistry
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Metal–Organic Frameworks Housing Active Molecules as Bioinspired Catalysts CCS Chem. (IF 11.2) Pub Date : 2024-03-12 Yin Zhang, Peter E. VanNatta, Junyu Ren, Shengqian Ma
Optimization of activity, selectivity, and stability of catalysts for practical application is a long-sought-after goal. Recent progress in the advancement of rational catalyst design routinely takes queues from nature. Specifically, enzymes are renowned for their high efficiency and selectivity in diverse and significant reactions under mild conditions. Despite the well-known merits of enzymes, they
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Integrating Homogeneous and Heterogeneous Catalysis in a Copper Nanocluster with Lewis Acid–Base Sites for Chemical Conversion of CO2 and Propargylamine CCS Chem. (IF 11.2) Pub Date : 2024-03-09 Wan-Zhen Qiao, Yu-Jue Wang, Si Li, Rui Wang, Jie Wu, Shuang-Quan Zang
It remains a significant challenge to develop a catalyst that merges the advantages of homogeneous and heterogeneous catalysis with high reactivity and great recyclability. Herein, an atomically precise Cu6-NH2 nanocluster with distorted octahedral Cu6 core and NH2-functionalized ligands has been developed as the first homo/heterogeneous catalyst to catalyze the cyclization reaction of propargylic
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Acceptor-Type Singlet Fission Material Based on Strong Absorption Tetracyanothienoquinoid Skeleton CCS Chem. (IF 11.2) Pub Date : 2024-03-09 Senhao Wang, Xiang-Yang Liu, Mengfan Zhang, Long Wang, Ganglong Cui, Hongbing Fu, Jiannian Yao
The practical efficiency of singlet fission (SF)-based photovoltaic devices is still far from satisfactory due to the limited scope of SF materials suitable for device application and the scarcity of schemes available for triplet utilization. Most SF materials identified to date are typically electron donors while acceptor-type SF materials remain largely unexplored. Basically, the combination of a
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Radiation-Assisted Synthesis of Crown Ether-Modified Covalent Organic Frameworks for Lithium Isotope Separation CCS Chem. (IF 11.2) Pub Date : 2024-03-08
CCS Chemistry, Ahead of Print.
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Tumor Imaging by a 99mTcO4−-Labeled Cationic Polymeric Network CCS Chem. (IF 11.2) Pub Date : 2024-03-08 Jie Li, Rongzhen Xie, Baoyu Li, Lixi Chen, Wenhao Shen, Yuting Zhao, Qi Guo, Long Chen, Boqi Xu, Xijian Chen, Jingwen Guan, Lei Chen, Kai Yang, Zhifang Chai, Shuao Wang
Technetium-99m (99mTc) is the most used (>80%) radionuclide in the clinical nuclear diagnostic imaging procedure. The traditional approach to preparing 99mTc-based imaging agents utilizes stannous chloride (SnCl2) for the reduction of noncomplexing pertechnetate (99mTcO4−) to low-valent Tc [e.g., Tc(IV)]. This process, however, is difficult to control precisely and usually results in toxic SnCl2 residue
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A New Nonfullerene Acceptor with Suppressed Energy Disorder for High-Efficiency Organic Solar Cells CCS Chem. (IF 11.2) Pub Date : 2024-03-08 Zi Li, Huifeng Yao, Zhihao Chen, Wenxuan Wang, Yang Xiao, Jianqiu Wang, Junzhen Ren, Tao Zhang, Jiayao Li, Jianhui Hou
Energy disorder is an important factor that affects charge transport, recombination, and energy loss in organic solar cells. Here, we designed a ladder-type nonfullerene acceptor and studied the critical role of energy disorder in photovoltaic performance. Taking a typical seven-member fused ring acceptor IT-4F as an example, we replaced its sp3-hybridized bridging carbon atoms and linked bulky groups
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Facile Blinking Dyes with Spontaneous Enol-Keto Tautomerism for Super-Resolution Imaging of Subcellular Targets CCS Chem. (IF 11.2) Pub Date : 2024-03-08
CCS Chemistry, Ahead of Print.
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Tumor Receptor-Seeking Dyes for Rapid Intraoperative Definition of Tumor Margin and Histopathological Morphology CCS Chem. (IF 11.2) Pub Date : 2024-03-08
CCS Chemistry, Ahead of Print.
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Pd/Zn Dual Catalysis for Site-, Enantio-, and Diastereo-Divergent 2-(Alkoxycarbonyl)allylation of α-Hydroxyketones with Morita–Baylis–Hillman Adducts CCS Chem. (IF 11.2) Pub Date : 2024-03-08 Yong Liu, Chaopeng Li, Rui Zhang, Zibo Liu, Zhaobin Han, Zheng Wang, Kuiling Ding
A synergistic Pd/Zn dual chiral catalyst system has been developed for the stereodivergent transformation of Morita–Baylis–Hillman (MBH) carbonates and unprotected α-hydroxyketones to afford the corresponding allylation products (>50 examples). These products bearing vicinal stereocenters were obtained in high yields with excellent regio-/diastereo-/enantioselectivities. On cyclization in an acidic
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The Smallest Monofluorodiazoethane Reagent and Its [3 + 2] Cycloaddition Reactions CCS Chem. (IF 11.2) Pub Date : 2024-03-08 Xiaodong Tang, Ming-Yue He, Ran Guo, Hao-Nan Liu, Jing Nie, Ilan Marek, Jun-An Ma, Fa-Guang Zhang
Given the widespread applications of fluorinated substances in pharmaceuticals, biology, and materials, the development of fluorine-containing building-blocks remains an important topic in organic chemistry. In the repertoire of fluorinated diazo compounds, research on tri- and difluorodiazoethane is well-established, but the lack of synthetic method has left the monofluorodiazoethane as an unexplored
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Rare-Earth Metal-Catalyzed Asymmetric Addition/Hydroamidination of Nitriles and Allylamines for the Concise Synthesis of Chiral Imidazolines CCS Chem. (IF 11.2) Pub Date : 2024-03-08 Chenhao Zhu, Yuqiao Zhou, Jing Zhang, Jianfeng Li, Yuxin Zhang, Fei Wang, Xiaoming Feng, Shunxi Dong
Chiral 2-substituted imidazolines are not only privileged scaffolds in many bioactive compounds, but also widely used as ligands and catalysts in asymmetric synthesis. However, the synthesis of enantioenriched 2-substituted imidazolines is heavily relied on step-wise synthetic approaches from chiral diamines under relatively harsh conditions. Herein, we present a highly enantioselective addition/hydroamidination
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Encapsulated Fe(IV) Molecular Complex for Photoacoustic Imaging CCS Chem. (IF 11.2) Pub Date : 2024-03-05 Ye Xu, Chao Li, Zhong-Yu Yu, Jiamin Wang, Zhaoyang Liu, Chao Jiang, Zhen-Feng Chen, Xiaoyu Wu, Ming-Xing Li, Hong Yang, Zhao-Xi Wang, Jonathan L. Sessler
A stable neutral Fe(IV) complex (Fe-HDCL), readily accessible on the g scale, was found to possess high water solubility and good stability (>5% degradation over 4 h upon photoirradiation). Fe-HDCL is green and absorbs light effectively in the visible region (500–800 nm) with a λmax at 650 nm (ε = 7830 M−1 cm−1). Fe-HDCL also exhibits photothermal (PT) behavior comparable to single-wall carbon nanotubes
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Generation of Hydrides or Hydrogen Radicals for Hydrodehalogenation and Deuterodehalogenation of gem-Dihaloalkenes CCS Chem. (IF 11.2) Pub Date : 2024-03-06 Zhe Chang, Cheng-Yu Yao, Wen-Jie Feng, Yi-Fan Zhao, Ru-Ru Qian, Xiao Hu, Yan Li, Deguang Liu, Xi Lu, Yao Fu
Terminal monohaloalkenes are common synthetic fragments used in organic synthesis and are also found in many natural products. Their Z/E stereoisomers are difficult to physically separate, being a persistent difficulty for functional molecular design and synthesis. Herein, we report complementary hydride and hydrogen radical generation pathways to effectuate hydrodehalogenation and deuterodehalogenation
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Expanded Porphyrin exhibiting offcentered out-of-plane coordination to Dysprosium. CCS Chem. (IF 11.2) Pub Date : 2024-03-05 Dmitry I. Nazarov, Jorge Labella, Alexey V. Kuzmin, Maxim A. Faraonov, Evgenii N. Ivanov, Salavat S. Khasanov, Tomas Torres, Mikhail K. Islyaikin, Dmitri V. Konarev
The complexation of high-spin lanthanides to porphyrinoids is a powerful strategy for the development of advanced molecular magnets. In this context, the use of expanded porphyrinoids remains elusive since their coordination chemistry is challenging to control. Taking inspiration by on-surface chemistry, herein we explore the coordination of Dy3+ to a six-membered porphyrinoid, namely hemihexaphyrazine
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A Bioorthogonal Post-modification of N6-Isopentenyl Adenosine i6A RNA in Live Cells CCS Chem. (IF 11.2) Pub Date : 2024-02-29 Li-Jun Xie, Hou-Ping Cheng, Meng-Yuan Chen, Xin Wang, Li Liu, Bi-Feng Yuan, Liang Cheng
Selective methods for modulating RNA epigenetic modifications within living cells and organisms represent attractive techniques for investigating biological functions and medicinal application. In contrast to enzymatic methods, abiotic chemical modulation offers access to diverse new-to-natural functionalities. We herein report a visible light-assisted bioorthogonal reaction involving flavin mononucleotide
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Photoexcitation of Dihydroquinazolinone Anionic Compounds: Difluoroalkylarylation and Difluoroalkylamination of Alkenes CCS Chem. (IF 11.2) Pub Date : 2024-02-29 Jian-Xiong Yang, Jia-Qing Hu, Qi Wen, Jie Xu, Yan Zhang, Heng Jiang
The direct excitation of dihydroquinazolinone (DHQ) anions by visible light has been demonstrated by photophysical experiments. The excited-state DHQ anion serves as both a potent reductant and a radical precursor in a redox neutral radical cascade, circumventing the use of an external photoredox catalyst. Various gem-difluoroalkyl radicals (CF2H and CF2R) are produced from the excited-state DHQ anions
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Kinetic Resolution of Racemic 4-Substituted Chroman-2-ones Through Asymmetric Lactone Hydrogenation CCS Chem. (IF 11.2) Pub Date : 2024-02-29
CCS Chemistry, Ahead of Print.
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Author Spotlight CCS Chem. (IF 11.2) Pub Date : 2024-03-01
CCS Chemistry, Volume 6, Issue 3, Page 532-536, March 2024.
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Spontaneous Symmetry Breaking of Iridium and Ruthenium Metallophosphors for the Constructions of Chiral Light-Harvesting Systems CCS Chem. (IF 11.2) Pub Date : 2024-02-29
CCS Chemistry, Ahead of Print.
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Advancing Energy Systems with In-Situ and Operando Surface-Enhanced Raman Scattering Spectroscopy CCS Chem. (IF 11.2) Pub Date : 2024-03-01 Haoming Bao, Shi Xuan Leong, Jaslyn Ru Ting Chen, Zhenhai Shi, Suli Chen, Yan Lv, Tianxi Liu, In Yee Phang, Xing Yi Ling
Surface-enhanced Raman scattering spectroscopy (SERS) has emerged as a powerful analytical technique to enable nanoscale investigations of energy systems. This mini-review focuses on the applications of in-situ and operando SERS in energy-related research, highlighting its unique capabilities and significant contributions to understanding energy storage and conversion processes. We first introduce
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Hierarchical Homochiral Assembly of Polyhedral Cage-Type Nanoclusters CCS Chem. (IF 11.2) Pub Date : 2024-02-28 Cheng-Long Deng, Bao-Liang Han, Ze-Yu Liu, Zhong-Hua Pan, Jiao He, Yu-Long Li, Zhi-Lin Yang, Geng-Geng Luo, Chen-Ho Tung, Di Sun, Lan-Sun Zheng
Hierarchical chiral self-assembly is of profound significance for biomolecules for their biological functions. Atom-precise metal nanoclusters (NCs) offer better opportunities to construct hierarchical superlattices. Nevertheless, achieving hierarchical homochiral assembly of nanocrystals protected by achiral ligands has proven to be a formidable task, with existing examples primarily limited to heterochiral
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Exfoliation and Engineering of 2D Materials through Electrochemistry CCS Chem. (IF 11.2) Pub Date : 2024-02-27 Sheng Yang, Panpan Zhang, Ali Shaygan Nia, Xinliang Feng
2D materials offer countless possibilities for the next-generation (opto)electronic devices because of their diverse and tailorable physicochemical characteristics. To bridge the gap between fundamental science and practical applications, simple-to-use universal approaches are essential for mass production of 2D materials with specific target properties. Electrochemical intercalation/exfoliation stands
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Research Progress in Enantioselective Radical Desymmetrization Reactions CCS Chem. (IF 11.2) Pub Date : 2024-02-24 Chang-Jiang Yang, Lin Liu, Qiang-Shuai Gu, Xin-Yuan Liu
Enantioselective radical desymmetrization is a highly effective approach for rapidly creating enantioenriched molecules, introducing dramatically increased structural complexity from readily available prochiral or meso compound feedstocks. Two strategic modes have been developed for these reactions, which differ in the nature of the stereo-determining steps. The first category deals primarily with
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Selective Alkane Desaturation Catalyzed by Molecular Cage Copper Complexes Under Mild Conditions CCS Chem. (IF 11.2) Pub Date : 2024-02-23
CCS Chemistry, Ahead of Print.
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Inherently Chiral and Symmetrical Heteroatom-Doped Zigzag-Type Hydrocarbon Belts CCS Chem. (IF 11.2) Pub Date : 2024-02-23 Xue-Yuan Wang, Xin-Yu Zhang, Shuo Tong, Qing-Hui Guo, Mei-Ling Tan, Cheng-Jun Li, Mei-Xiang Wang
Recent years have witnessed a resurgence of study in hydrocarbon belts due to their potential applications in carbon nanotechnology. By contrast, heteroatom-embedded zigzag hydrocarbon belts as advanced design strategies with fascinating structures and desirable, unique properties have remained largely unexplored, and inherently chiral ones are unknown. Herein, we report the synthesis of a diversity
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Isoreticular Regulation of Two-Dimensional Redox-Active Covalent Organic Framework Cathodes for Enhanced Lithium-Ion Storage CCS Chem. (IF 11.2) Pub Date : 2024-02-24 Zhangyi Xiong, Liang Gu, Ying Liu, Hao Wang, Le Shi, Xiaowei Wu, Lingmei Liu, Zhijie Chen
A challenge facing scientists is the rational synthesis of highly crystalline covalent organic frameworks (COFs), consisting of both n-type and p-type redox-active units, as cathodes for high-performance lithium-ion batteries. Herein, we apply reticular chemistry to regulate a COF platform with the kgm topology via an in-situ post-synthetic oxidation strategy. We integrate both n-type and p-type redox-active
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Metal-Free, Site-Selective C–H Fluorination of Heteroarenes Under Visible Light CCS Chem. (IF 11.2) Pub Date : 2024-02-21
CCS Chemistry, Ahead of Print.
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Discovery and Asymmetric Total Synthesis of Phlegmine A as a Selective Inhibitor of ASIC1a CCS Chem. (IF 11.2) Pub Date : 2024-02-22 Zai-Feng Yuan, Fei Liu, Yu-Fei Ou, Wen-Yan Li, Li-Yan Peng, Xiao-Nian Li, Qin-Shi Zhao
Phlegmine A ( 1), a novel type of Lycopodium alkaloid with a unique skeleton, was isolated from the rare and endangered herbal medicinal plant, Phlegmariurus phlegmaria. Spectroscopic methods and X-ray diffraction analysis were employed to unambiguously elucidate the structure of phlegmine A ( 1). Furthermore, we realized the asymmetric total synthesis of the natural product phlegmine A ( 1) in 18
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Stereodivergent Benzylic Substitution of Racemic Secondary Benzyl Esters Enabled by Pd/Cu Dual Catalysis CCS Chem. (IF 11.2) Pub Date : 2024-02-22 Youbin Peng, Guanlin Li, Chongyu Han, Yicong Luo, Xiaohong Huo, Wanbin Zhang
Transition-metal-catalyzed asymmetric benzylic substitution of racemic benzyl esters is an efficient and straightforward route towards the construction of benzylic stereocenters but remains a challenge, due to the difficulty encountered in the suppression of β–H elimination and asymmetric induction. Herein, we successfully developed a highly diastereo- and enantioselective benzylic substitution of
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A Machine Learning Model for Predicting Enantioselectivity in Hypervalent Iodine(III) Catalyzed Asymmetric Phenolic Dearomatizations CCS Chem. (IF 11.2) Pub Date : 2024-02-22
CCS Chemistry, Ahead of Print.
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Heterogeneous Catalysis with Metal-Containing Crystalline Porous Materials: Element- and Site-Specific Insights CCS Chem. (IF 11.2) Pub Date : 2024-02-20 Yan Li, Andrew G. Walsh, Peng Zhang, Tianjun Zhang
Metal-containing crystalline porous materials (CPMs) are gaining popularity in heterogeneous catalysis because of their highly crystalline and porous systems, and their excellent chemical tunability. Modification of the metal species and framework structure permits them to have greater activity, selectivity, and stability over other materials. An in-depth understanding of the complex nature of metal
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Recent Advances in Cobalt-Catalyzed Regio- or Stereoselective Hydrofunctionalization of Alkenes and Alkynes CCS Chem. (IF 11.2) Pub Date : 2024-02-20
CCS Chemistry, Ahead of Print.
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Cobalt Single Atom-Catalyzed Formation of LiOH in Li-O2 Batteries via the Direct 4-Electron Oxygen Reduction Pathway CCS Chem. (IF 11.2) Pub Date : 2024-02-21 Kang Huang, Hao Wan, Zhichao Gong, Jianbin Liu, Minmin Yan, Jun Wu, Chunyu Cui, Gonglan Ye, Karsten Reuter, Huilong Fei
The formation of LiOH as the discharge product instead of Li2O2 in Li-O2 batteries (LOBs) is highly desirable due to the associated drawbacks of Li2O2-based chemistry, which involves the generation of reactive oxygen intermediates responsible for substantial side reactions. However, the current challenge lies in the formation pathway of LiOH, which typically requires the chemical hydrolysis of the
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Sequence Engineering in Tuning the Circularly Polarized Luminescence of Aggregation-Induced Emission-Active Hetero[3]rotaxanes CCS Chem. (IF 11.2) Pub Date : 2024-02-21 Zhiyong Peng, Pei-Pei Jia, Xu-Qing Wang, Xiao-Li Zhao, Hai-Bo Yang, Wei Wang
Based on a [2]rotaxane precursor with exchangeable pentafluorophenyl ester stoppers, a new wheel-assembling approach has been successfully developed for the precise sequence control of hetero[3]rotaxanes, leading to the facile and efficient synthesis of both sequence isomers of hetero[3]rotaxanes. More importantly, taking advantage of the chirality retention along with the wheel-assembling process
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Robust Giant Octahedral [6+8] Porous Organic Cages for Efficient Ethylene/Ethane Separation CCS Chem. (IF 11.2) Pub Date : 2024-02-20 Lijuan Feng, Yan-Xi Tan, El-Sayed M. El-Sayed, Fenglei Qiu, Wenjing Wang, Kongzhao Su, Daqiang Yuan
The exploration of ethane (C2H6)-selective porous materials for the direct production of polymer-grade ethylene (C2H4) from a C2H6/C2H4 mixture in a single energy-saving adsorption step is of utmost importance but remains a significant challenge. Thus, developing robust C2H6-selective adsorbents with high C2H6 capacity and C2H6/C2H4 selectivity is urgently needed for industrial applications. In this
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Hole-Selective Contact with Molecularly Tailorable Reactivity for Passivating High-Performing Inverted Perovskite Solar Cells CCS Chem. (IF 11.2) Pub Date : 2024-02-20
CCS Chemistry, Ahead of Print.
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Flexible Organic Crystal with Two-Dimensional Elastic Bending and Recoverable Plastic Twisting for Circularly Polarized Luminescence CCS Chem. (IF 11.2) Pub Date : 2024-02-20
CCS Chemistry, Ahead of Print.
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Bipolar Thermally Activated Delayed Fluorescence Emitter with Balanced Carrier Transport for High-Efficiency Nondoped Green Electroluminescent Devices CCS Chem. (IF 11.2) Pub Date : 2024-02-20
CCS Chemistry, Ahead of Print.
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Phosphine-Built-In Porous Organic Cage Supported Ultrafine Pd Nanoclusters Enable Highly Efficient and Regioselective Hydrogenation of Epoxides CCS Chem. (IF 11.2) Pub Date : 2024-02-20 Xin Zhou, Zhaozhan Wang, Zhe-Ning Chen, Yong Yang
Selective hydrogenation of epoxides has been regarded as an atom-economical and straightforward method for the synthesis of alcohols. However, it remains a big challenge in the precise control of regioselectivity. To date, the reaction enabled by a reusable and high-performance heterogeneous catalyst with excellent regioselectivity is very scarce. Herein, we develop highly loaded and ultrafine Pd nanoclusters
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Hierarchical Self-Assembly Promoted Circularly Polarized Luminescence Enhancement and Handedness Inversion of Metal–Organic Helicate CCS Chem. (IF 11.2) Pub Date : 2024-02-20
CCS Chemistry, Ahead of Print.
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Intense Intramolecular Charge Transfer Endows Cyanated Polymer with Broad Absorption, Intensified Light-Harvesting, Long-Lived Exciton, and Superior Photovoltaic Property CCS Chem. (IF 11.2) Pub Date : 2024-02-20 Jinming Chen, Huijuan Wang, Songmin Mo, Hui Chen, Xinyu He, Mingbin Su, Dongyan Li, Yonghong Xiao, Zhiqi Wang, Fanwei Ye, Mingde Li, Li Dang, Xiao-Chun Huang, Chang-Zhi Li, Feng He, Qinghe Wu
The donor–acceptor (D–A) copolymers, which exhibit wide broad absorption and intensified light-harvesting, are highly captivating for applications in solar conversion and optoelectronics. However, designing a polymer structure that can achieve these photophysical properties simultaneously remains a challenge. Herein, we report two novel cyanated units 4-cyanobenzo[1,2-b:6,5-b′:3,4-c″]trithiophene (CBT)
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7-Oxa-2,3-Diazanorbornene: A One-Step Accessible Monomer for Living Ring-Opening Metathesis Polymerization to Produce Backbone-Biodegradable Polymers CCS Chem. (IF 11.2) Pub Date : 2024-02-20 Xiaoyang Wang, Yixing Wen, Yu Wang, Wei Li, Xueguang Lu, Wei You
Traditional ring-opening metathesis polymerization (ROMP) reactions exhibit broad functional group compatibility and precise control over polymer architectures, albeit with non-biodegradable backbones. Recent progress has resulted in a series of biodegradable ROMP products with diverse cleavable functional groups, yet the majority of the monomers display moderate to low ring strain, which restricts
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Photoinduced Radical-Ionic Transfer of Various Chlorofluorocarbons to Alkenes from Oxime-Based Surrogates CCS Chem. (IF 11.2) Pub Date : 2024-02-20 Jinghui Zhang, Muliang Zhang, Martin Oestreich
Functional-group-transfer strategies that avoid the use of unsustainable chemicals are attractive for the development of green methodologies. Chlorofluorocarbons (CFCs) not only contribute to the depletion of the stratospheric ozone layer, but their gaseous nature also poses a serious threat in scientific laboratories. Hence, the design of effective and sustainable alternatives to CFCs is highly desirable