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Emerging progress: photochemical transformation of nitroso compounds Sci. China Chem. (IF 10.4) Pub Date : 2024-07-17 Ze-Le Chen, Qiang-Qiang Li, Armido Studer, Jun Xuan
Nitroso compounds have emerged as highly valuable reaction partners or reagents in organic synthesis due to their rich reactivity. The versatile profile of these compounds allows them to function as electrophiles, nucleophiles, diradicals, and radical acceptors in diverse transformations. In recent years, notable progress has been made in harnessing photochemical reactions with nitroso compounds to
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Cl− ions accelerating interface charge transfer in a Si/In2S3 Faradaic junction photocathode for solar seawater splitting Sci. China Chem. (IF 10.4) Pub Date : 2024-07-17 Jun Luo, Ruotong Bao, Hongzheng Dong, Ye Fu, Dongjian Jiang, Bo Wang, Yuzhan Zheng, Qiong Wang, Wenjun Luo, Zhigang Zou
Photoelectrocatalytic seawater splitting is a promising low-cost method to produce green hydrogen in a large scale. The effects of Cl− ions in seawater on the performance of a photoanode have been reported in previous studies. However, few researches have been done on the roles of Cl− ions in a photocathode. Herein, for the first time, we find that Cl− ions in the electrolyte improve the photocurrent
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Recent progress in diagnostic imaging and therapeutics of osteosarcoma based on multifunctional nanoparticles Sci. China Chem. (IF 10.4) Pub Date : 2024-07-11 Xueke Yan, Danmin Lin, Dingyuan Yan, Dong Wang, Huifang Su
Osteosarcoma is one of the most common primary bone malignancies, mainly occurring in children and adolescents. Traditional diagnosis imaging methods for osteosarcoma contain X-ray, computed tomography and magnetic resonance imaging, and traditional therapy protocols are surgical resection and chemotherapy. However, these strategies are complicated and separated. These imaging methods, despite their
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Simultaneously optimizing exciton diffusion length and nonradiative energy loss in organic solar cells via ternary strategy Sci. China Chem. (IF 10.4) Pub Date : 2024-07-12 Huanxiang Jiang, Hao Lu, Zezhou Liang, Yonghai Li, Guangliu Ran, Chenyu Han, Yuqiang Liu, Hongxiang Li, Xichang Bao, Zhishan Bo
Significant nonradiative energy loss and short exciton diffusion length in organic solar cells (OSCs) are two major obstacles to achieving state-of-the-art efficiencies. It is crucial to conduct a study on the intensive mechanism and improvement strategies for future breakthroughs in the efficiency of OSCs. In this work, nonradiative energy loss and exciton diffusion length are optimized simultaneously
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A topology approach to overcome the pore size/volume trade-offs for autonomous indoor humidity control Sci. China Chem. (IF 10.4) Pub Date : 2024-07-11 Zhi-Shuo Wang, Xue-Wen Zhang, Kai Zheng, Xiao-Xian Chen, Dong-Dong Zhou, Jie-Peng Zhang
Autonomous indoor humidity control is gaining more and more attention but is limited by the trade-offs among pore volume, pore size and water stability of water adsorbents. We solve this problem by using a unique coordination network topology combined with hydrolytically stable M(III) carboxylate clusters. By extending the ligand length from 9.0 to 11.2 and 13.7 Å, the pore volume significantly increases
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Highly efficient room temperature phosphorescent liquid crystalline polymer optical waveguides for advanced optoelectronics Sci. China Chem. (IF 10.4) Pub Date : 2024-07-09 Jie Li, Yan Guan, Wei Xia, Jin-Kang Chen, Jiang Huang, Yi Chen, Qi Lin, Er-Qiang Chen, He-Lou Xie
Active organic optical waveguide materials (OOWMs) incorporating room temperature phosphorescence (RTP) hold significant promise for diverse applications in photonic and optoelectronic devices. Despite this potential, realizing active RTP optical waveguides with large-sized ordered structures and minimal light loss remains a formidable challenge. To address this issue, we present a groundbreaking thermoplastic
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Electrochemical conversion of organic compounds and inorganic small molecules Sci. China Chem. (IF 10.4) Pub Date : 2024-07-09 Weimei Zeng, Youai Qiu
Electrochemical synthesis presents a facile and sustainable strategy to produce valuable molecules. This review summarizes the most recent advances in electrosynthesizing value-added compounds with inorganic small molecules. While “small molecules” refers to a broad spectrum of chemicals, we mainly focus on the electrochemical conversion of CO2, H2O/D2O, NH3 and SO2 until March 2024. This review intends
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The centrosymmetric to non-centrosymmetric transformation induced by alkaline-earth cations producing infrared nonlinear optical AeMn6Ga6S16 (Ae = Ca, Sr) Sci. China Chem. (IF 10.4) Pub Date : 2024-07-10 Yang-Ping Zhang, Shao-Min Pei, Wen-Fa Chen, Bin-Wen Liu, Xiao-Ming Jiang, Guo-Cong Guo
Non-centrosymmetric (NCS) structure is an indispensable prerequisite for second-order nonlinear optical (NLO) material. Currently, the mainstream approach for designing new NCS structures still relies on chemical substitution, necessitating an urgent infusion of fresh ideas. In this work, two isomorphic sulfides AeMn6Ga6S16 (Ae = Ca, 1; Sr, 2) are afforded by modifying the skeleton of centrosymmetric
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Solution-processed all-inorganic lead halide perovskite/layered double hydroxides superlattices Sci. China Chem. (IF 10.4) Pub Date : 2024-07-10 Deyu Li, Mingming Zhang, Lulu Wei, Shubing Tian, Mingze Sun, Kang Liu, Jixiang Xu, Lei Wang, Jun Xing
Quantum wells and superlattices are key building blocks in the semiconductor industry, normally fabricated using epitaxial growth techniques, such as vapor phase epitaxy, metalorganic chemical vapor deposition and molecular beam epitaxy. However, these complicated preparation processes, as well as their high cost, limit their extensive applications. It is essential to develop a simple solution process
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Unidirectional movement behavior of underwater bubbles on the wettability gradient mesh via asymmetrical bounce Sci. China Chem. (IF 10.4) Pub Date : 2024-07-08 Yuzhen Ning, Zhihong Zhao, Shuang Ben, Qiang Li, Cunming Yu, Xudong Zhang, Huawei Chen, Kesong Liu, Lei Jiang
The impact of underwater bubbles on solid surfaces with a gradient wettability is important for fundamental science and technological applications. Despite progress in the translational motion of underwater bubbles on asymmetric surface, a fundamental dynamic understanding of asymmetrical bounce behavior of the underwater bubble needs to be further improved. Herein, we investigate asymmetrical bounce
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The superiority of nonconjugated structures in fluorescence: through-space vs. through-bond charge transfer Sci. China Chem. (IF 10.4) Pub Date : 2024-07-08 Weihao Tu, Zuping Xiong, Lei Wang, Jianyu Zhang, Jing Zhi Sun, Haoke Zhang, Ben Zhong Tang
Constructing charge transfer (CT) state by introducing donor (D) and acceptor (A) is an efficient strategy to regulate the photophysical properties of luminescent materials. Traditional CT-type luminophores are built on π-conjugated fused-ring structures, which always show hybrid CT/locally excited (LE) states and luminescence quenching effect in the aggregate state. In this work, eight conjugated
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Lifetime-tunable circularly polarized luminescent system based on triplet-to-singlet Förster resonance energy transfer Sci. China Chem. (IF 10.4) Pub Date : 2024-07-08 Zhenyi He, Zizhao Huang, Xiang Ma
Circularly polarized luminescence (CPL) materials have received widespread attention due to their remarkable performance and broad applications. However, current CPL material research primarily focuses on tunable color, intensity, and reversibility. Constructing CPL with adjustable lifetime remains a significant challenge. Herein, a series of CPL polymeric materials with tunable lifetime were obtained
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Crystalline cyclic (alkyl)(amino)stannylene via transient stannyne Sci. China Chem. (IF 10.4) Pub Date : 2024-07-08 Xin-Feng Wang, Chaopeng Hu, Zhihao Lu, Liu Leo Liu
We demonstrate that a bulky cyclic amino ligand, specifically 1,1,3,3-tetraphenylisoindolinyl, can facilitate the formation of a transient stannyne, endowed with adjacent ambiphilic carbon and tin centers. This stannyne, manifesting carbene-like behavior, engages in an unprecedented sequence of reactions, including Buchner ring expansion, [1,3]sigmatropic, and [1,5]-sigmatropic shifts, culminating
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Nickel-catalyzed arylcyanation of alkenes via cyano group translocation: access to 1,n-dinitriles or 4-amino nitriles Sci. China Chem. (IF 10.4) Pub Date : 2024-07-08 Xiaohong Li, Shenfan Wang, Xiangxiang Fu, Donghui Xing, Zeyuan Fu, Yuanfu Deng, Huanfeng Jiang, Liangbin Huang
Herein, a nickel-catalyzed arylcyanation of unactivated alkenes via cyano group translocation with aryl boronic acids has been developed. These transformations provided a robust approach to constructing structurally diverse 1,n-dinitriles or 4-amino nitriles from easily prepared and commercially available starting materials. The cyano group translocation was achieved, involving the addition into the
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Light-triggered fluorochromic cholesteric liquid crystal elastomer with hydrogen-bonded fluorescent switch: dualmodal-switchable circularly polarized luminescence Sci. China Chem. (IF 10.4) Pub Date : 2024-07-01 Siyang Lin, Tianqi Ren, Xianyu Meng, Wenxin Kang, Jinbao Guo
Solid materials with dynamically tunable circularly polarized luminescence (CPL) feature higher security levels and device-friendly characteristics, showing great superiority in the field of information technology and anti-counterfeiting. To address the limited photoisomerization of fluorescent photoswitch in CPL-active solid materials, here a cholesteric liquid crystal elastomer (CLCE) containing
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Living/controlled polymerization of vinylpyridines into sequence-regulated copolymers by Lewis pair Sci. China Chem. (IF 10.4) Pub Date : 2024-07-01 Qiankun Ding, Wuchao Zhao, Fukuan Li, Jianghua He, Yuetao Zhang
The poly(vinylpyridine) (PVP) based (co)polymers are of particular interest in materials science, due to their multifunctionality and diverse applications. So far, there is no report on the sequence-regulated copolymerization of vinylpyridines (VPs) and methacrylate monomer in one-step manner yet. Here we designed and synthesized a series of guanidine phosphines as Lewis base (LB), which is combined
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Copper naphthalocyanine-based hole-transport material for high-performance and thermally stable perovskite solar cells Sci. China Chem. (IF 10.4) Pub Date : 2024-07-02 Yue Qiang, Huaiman Cao, Yuzhen Pan, Yi Chi, Liangyu Zhao, Yingguo Yang, Hai-Bei Li, Yan Gao, Licheng Sun, Ze Yu
Metal phthalocyanines (MPcs) have gained considerable research attention as hole-transport materials (HTMs) in perovskite solar cells (PSCs) because of their superb stability. However, the photovoltaic performance of MPc-based HTMs in PSCs is still lagging behind their small molecule and polymeric counterparts, largely due to their relatively low hole mobility. Here, we report for the first time the
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Copper-catalyzed asymmetric dearomatizing amination of 2-naphthols: Csp2–N coupling via 1,3-reductive elimination Sci. China Chem. (IF 10.4) Pub Date : 2024-07-02 Aying Yihuo, Maoping Pu, Zheng Tan, Jibang Liao, Jiuqi Tan, Qi-Lin Zhou, Xiaohua Liu, Xiaoming Feng
An efficient catalytic asymmetric dearomatizing amination of 2-naphthols and phenols catalyzed by N,N′-dioxide-copper(I) complex as a chiral catalyst was presented. A variety of optically active β-naphthalenone compounds with a nitrogen-containing quaternary carbon stereocenter were obtained with high yield and enantioselectivity under mild reaction conditions. Mechanistic studies indicated that this
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An unprecedented synthesis of axially chiral biaryls by rearrangement and aromatization of carbocations with central-to-axial conversion of chirality Sci. China Chem. (IF 10.4) Pub Date : 2024-07-02 Qi Liu, Xue-Dong Li, Liang Cheng, Li Liu
The central-to-axial chirality conversion represents a fascinating class of chemical processes consisting of the destruction of stereogenic centers and the simultaneous installation of axial chiral elements, which provides efficient methods for the preparation of axially chiral compounds. However, developing catalytic asymmetric approaches for constructing these central chirality precursors and the
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Highly active organocatalyst from a trivalent phosphazenium salt for ring-opening copolymerization of epoxides and cyclic anhydrides enhanced by hydrogen bonding interactions Sci. China Chem. (IF 10.4) Pub Date : 2024-07-03 Chunhuan Jiang, Junqi Wang, Xiaoyu Liu, Xiaoxia You, Ronglin Zhong, Chuanli Ren, Zhibo Li
It is highly desirable to develop simple organocatalysts for the controlled ring-opening alternating copolymerization (ROAC) of epoxides and cyclic anhydrides, leading to high molecular weight polyesters. Hence, a phosphazenium salt, namely tri[tris (dimethylamino)phosphoranylidenamino]phosphonium chloride (P4+Cl−), is developed as a catalyst for the ROAC of epoxides and cyclic anhydrides. Surprisingly
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Polyoxometalate-based flexible conductive materials with superionic conductivity Sci. China Chem. (IF 10.4) Pub Date : 2024-07-03 Yuxin Wang, Shuping Xue, Jun Geng, Ying Lu, Teng Li, Xiaozheng Duan, Xue Bai, Yanli Yang, Jingqi Yang, Shuxia Liu
Flexible ion-conductive materials exhibit intriguing advantages for applications in flexible electronic devices. Currently, the further enhancement of their conductivity within environmental limitations is an urgent demand for the development of flexible electronic devices, yet remains as a great challenge. Herein, we report a “dual-acid” strategy, via the encapsulation of two acids, H3PW12O40 (HPW)
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Synergistic asymmetric diarylation of tethered alkenes via C–H functionalization of simple (hetero)arenes Sci. China Chem. (IF 10.4) Pub Date : 2024-06-28 Jian Yao, Can Zhao, Lili Shao, Xiaohong Huo, Xiaoming Wang
By virtue of the atom- and step-economy, utilization of simple arenes as a supplant of pre-prepared aryl metal species or aryl halides for the synthesis of arylated chiral molecules has attracted great attention from the synthetic community. While transition-metal-catalyzed enantioselective diarylation of tethered alkenes has been employed to prepare important chiral cyclic compounds, the direct use
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Copper-catalyzed enantioselective desymmetrizing C(sp2)–H functionalization of azide-ynamides via α-imino copper carbenes Sci. China Chem. (IF 10.4) Pub Date : 2024-07-03 En-He Huang, Li-Gao Liu, You-Wei Yin, Hao-Xuan Dong, Ji-Jia Zhou, Xin Lu, Bo Zhou, Long-Wu Ye
α-Imino metal carbenes are versatile intermediates in organic synthesis, and have broad applications in the assembly of divergent N-heterocycles. However, the catalytic enantioselective desymmetrization based on α-imino metal carbenes has not been developed to date. Herein, we disclose an enantioselective desymmetrizing C(sp2)–H functionalization of azide-ynamides via α-imino copper carbenes, leading
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19.3% Efficiency ternary organic solar cells enabled by the alkyl side-chain effect of guest non-fullerene acceptors Sci. China Chem. (IF 10.4) Pub Date : 2024-06-27 Hongqian Wang, Sijian Wu, Daobin Yang, Xueliang Yu, Shuncheng Yang, Pengfei Ding, Pengyu Yan, Zaifei Ma, Jianfeng Zhang, Ziyi Ge
The effect of side-chain engineering of conjugated molecules on the morphology and device performance in binary organic solar cells has been widely investigated. However, this relationship has hardly been studied in the guest components of ternary organic solar cells. In this study, a family of non-fullerene guest acceptors, namely XY-3, XY-5 and XY-7, with hydrogen substituent, straight and branched
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NHC-derived carbon-centered luminescent radicals with short-wavelength emission via suppression of Kasha’s rule Sci. China Chem. (IF 10.4) Pub Date : 2024-06-27 Can Chen, Xin Li, Xinhua Ouyang, Ying-Feng Han
Luminescent organic radicals have garnered increasing attention owing to their versatile applications in sensing, imaging, and organic light-emitting diodes (OLEDs), attributed to their unique emission properties originating from the doublet spin state. However, the natural narrow bandgap of organic free radicals typically limits their emission to the long-wavelength region. Designing luminescent organic
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Mechanical robust and self-healing flexible perovskite solar cells with efficiency exceeding 23% Sci. China Chem. (IF 10.4) Pub Date : 2024-06-27 Yaohua Wang, Ruikun Cao, Yuanyuan Meng, Bin Han, Ruijia Tian, Xiaoyi Lu, Zhenhua Song, Shuncheng Yang, Congda Lu, Chang Liu, Ziyi Ge
Flexible perovskite solar cells (f-PSCs) have experienced rapid advancements due to the light-weight, flexibility, and solution processability of the perovskite materials, which prompted the power conversion efficiency (PCE) to 24.08%. However, f-PSCs still face challenges in terms of mechanical and environmental stability. This is primarily due to their inherent brittleness, the presence of residual
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Nickel-catalyzed enantioselective reductive amination of benzylic ketones in alcohols Sci. China Chem. (IF 10.4) Pub Date : 2024-06-27 Xiuhua Wang, Jianrong Steve Zhou
Asymmetric reductive amination directly converts ketones and amines to alkylamines, which are important motifs in medicines. We report that cationic nickel complexes of chiral diphosphines promote enantioselective reductive amination of benzylic ketones with both arylamines and benzhydrazide. Isopropanol was used as a safe and cheap source of hydrogen instead of formic acid. The reaction can be readily
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Recent progress in carbene-catalyzed fluoroalkylation Sci. China Chem. (IF 10.4) Pub Date : 2024-06-26 Bei Zhang, Xuan Zhang, Jian Wang
The fluoroalkyl fragment plays a vital role in various fields such as pharmaceuticals and materials science, and has a significant impact on human life not only on the present but also in the future. The insertion of fluoroalkyl groups into the chemical skeletons can cause considerable alternations in the chemical, physical and biological properties of molecules, which has attracted numerous scientists
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General radical difluoromethylation using difluoroacetic anhydride via photoredox catalysis Sci. China Chem. (IF 10.4) Pub Date : 2024-06-26 Meng He, Yankai Yang, Heng Zhang, Zhipeng Guan, Zhi-Bing Dong, Hong Yi, Aiwen Lei
CF2H-containing molecules play pivotal roles in diverse fields from medicinal chemistry to materials science. However, the application of existing CF2H reagents as a source of CF2H radical is limited by their reactivity and preparation. Herein, we develop a simple and general visible-light-catalyzed radical difluoromethylation reaction of alkenes, dienes, and heteroaromatics using commercially available
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Molecular docking-aided AIEgen design: concept, synthesis and applications Sci. China Chem. (IF 10.4) Pub Date : 2024-06-27 Jian-Qing Zhang, Xiao-Yu Xu, Fu-Sheng Liu, Shu-Qiang Cao, Yu-Xin Gui, Yi-Wen Su, Xiao-Yu He, Ji-Yuan Liang, You-Quan Zou
Aggregate-induced emission luminogens (AIEgens) have been widely used in biological imaging, chemical sensing, and disease treatments. The rational design and construction of AIEgens have received considerable research interests during the last few years. Herein, molecular docking-aided AIEgen design has been reasonably proposed and AIEgen TBQZY with excellent 1O2 generation ability has been synthesized
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Engineering and dynamics of heterogeneous catalysts via metal single atoms as promoters/precursors Sci. China Chem. (IF 10.4) Pub Date : 2024-06-24 Jiwei Li, Junli Xu, Jingyun Yang, Zitao Duan, Zhun Zhang, Haifeng Xiong
Metal single-atom catalysts (SACs) have emerged as a focal point of research, captivating the scientific community due to their distinctive electronic properties and unparalleled catalytic prowess in the realm of heterogeneous catalysis. However, their significance transcends their role as mere active sites. Recent investigations have illuminated the multifaceted capabilities of metal single atoms
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Controlling reversible complexation-mediated polymerization (RCMP) via deep eutectic solvents: fast kinetics, narrow molecular weight distribution and mechanistic insights Sci. China Chem. (IF 10.4) Pub Date : 2024-06-24 Xin Fu, Zhen Lu, Shen Li, Zheng-Hong Luo, Lin-Xi Hou
The exploitation of new green polymerization avenues for the effective synthesis of polymers by reversible-deactivation radical polymerization plays a critical role in pursuing the development of polymeric materials. In this work, serials of deep eutectic solvents (DES) with intermolecular-hydrogen-bonding interaction were constructed as catalysts and medium for actuating reversible complexation-mediated
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Phase and chemical state tuning of FeNi oxides for oxygen evolution reaction Sci. China Chem. (IF 10.4) Pub Date : 2024-06-24 Jiawei Wu, Zhouyang Ma, Lice Yu, Shuli Wang, Fulin Yang, Ligang Feng
Advancing and deploying the FeNi-based catalyst, the state-of-the-art pre-electrocatalysts, for oxygen evolution reactions (OER) still suffer from unclear chemical state correlation to the catalytic ability, as evidenced by the variedly reported performance for the different FeNi structures. Herein, we contributed the phase and redox chemical states tuning of FeNi oxides by the surface microenvironment
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Acceptor-engineering tailored type-I photosensitizer with aggregation-induced NIR-II emission for cancer multimodal phototheranostics Sci. China Chem. (IF 10.4) Pub Date : 2024-06-26 Jiangao Li, Niu Niu, Deliang Wang, Xue Liu, Yi Qin, Lei Wang, Ben Zhong Tang, Dong Wang
Exploration of single molecular species synchronously featured by long excitation/emission wavelength, accurate diagnosis, and effective therapy, remains supremely appealing to implement high-performance cancer phototheranostics. However, those previously established phototheranostic agents are undiversified and stereotyped in terms of structural skeleton, and generally exhibit insufficient phototheranostic
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AI for organic and polymer synthesis Sci. China Chem. (IF 10.4) Pub Date : 2024-06-26 Xin Hong, Qi Yang, Kuangbiao Liao, Jianfeng Pei, Mao Chen, Fanyang Mo, Hua Lu, Wen-Bin Zhang, Haisen Zhou, Jiaxiao Chen, Lebin Su, Shuo-Qing Zhang, Siyuan Liu, Xu Huang, Yi-Zhou Sun, Yuxiang Wang, Zexi Zhang, Zhunzhun Yu, Sanzhong Luo, Xue-Feng Fu, Shu-Li You
Recent years have witnessed the transformative impact from the integration of artificial intelligence with organic and polymer synthesis. This synergy offers innovative and intelligent solutions to a range of classic problems in synthetic chemistry. These exciting advancements include the prediction of molecular property, multi-step retrosynthetic pathway planning, elucidation of the structure-performance
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Catalytically generated noncovalent ammonium dienolate: a versatile platform for the development of organocatalytic asymmetric cascade reactions Sci. China Chem. (IF 10.4) Pub Date : 2024-06-26 Jun-Bing Lin, Dong-Sheng Ji, Peng-Fei Xu
Organocatalytic cascade reactions represent a powerful strategy for the rapid construction of complex chiral molecules with multiple stereocenters from simple substrates under mild conditions. The intriguing structural feature and diverse reactivity of catalytically generated dienolate species render them competent and versatile intermediates for the development of practical and valuable cascade reactions
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Introducing sulfur to nickel-iron selenide for high-efficiency alkaline seawater electrolysis Sci. China Chem. (IF 10.4) Pub Date : 2024-06-26 Xuanwa Chen, Yanhui Yu, Xingqi Han, Huan Wang, Yingjie Hua, Daoxiong Wu, Peilin Deng, Juanxiu Xiao, Xinlong Tian, Jing Li
Seawater electrolysis is an effective way to obtain hydrogen (H2) in a sustainable manner. However, the lack of electrocatalysts with high activity, stability, and selectivity for oxygen evolution reaction (OER) severely hinders the development of seawater electrolysis technology. Herein, sulfur-doped nickel-iron selenide nanosheets (S-NiFeSe2) were prepared by an ion-exchange strategy and served as
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High-resolution remote thermometry based on Bi3+-doped 0D zinc halide hybrids Sci. China Chem. (IF 10.4) Pub Date : 2024-06-26 Cui-Mi Shi, Shu-Hua Xue, Jin-Yun Wang, Liang-Jin Xu, Zhong-Ning Chen
Developing highly sensitive optical thermometers is of great significance due to their capability to enable remote and non-contact temperature measurements, rendering them highly applicable in diverse and harsh environments. Herein we report a temperature-dependent phosphor of 0D metal halide hybrid by incorporating Bi3+ into the (MePPh3)2ZnCl4 matrix. Through Bi3+ doping, the initially non-luminescent
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Pd-catalyzed intermolecular Si–O formation via Si–C activation Sci. China Chem. (IF 10.4) Pub Date : 2024-06-26 Shuang Liu, Yu-Shu Chen, Yichen Wu, Peng Wang
The development of efficient Si–O bond formation reaction with 100% atom-economy, excellent functional group tolerance, and broad scope under mild conditions is highly desired due to the prevalence of silanol, silyl ether, and their derivatives in synthetic chemistry and materials science. Here, we have realized the Pd-catalyzed Si–O formation reaction via a Si–C activation approach with 100% atom-economy
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Catalytic asymmetric (3 + 3) cycloaddition between different 2-indolylmethanols Sci. China Chem. (IF 10.4) Pub Date : 2024-06-26 Tianzhen Li, Sijia Liu, Shufang Wu, Qi Cheng, Qun Chen, Yinchun Jiao, Yuchen Zhang, Feng Shi
The catalytic asymmetric (3 + 3) cycloaddition between different 2-indolylmethanols has been established, in which a series of chiral indole-fused six-membered heterocycles were constructed in high yields with excellent enantioselectivities. This work not only has established the first catalytic asymmetric cycloaddition between different 2-indolylmethanols but also provided a powerful strategy for
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Upconverting and downshifting circularly polarized luminescence in a superstructural helix Sci. China Chem. (IF 10.4) Pub Date : 2024-06-20 Honghan Ji, Bin Wu, Enquan Tian, Chao Ren, Xue Jin, Liangliang Zhu, Pengfei Duan
The modulation of circularly polarized luminescence (CPL) has become an increasingly prominent area of research. In this study, we propose a unique “one-excitation-to-three-emissions” CPL system through the co-assembly of an upconversion system, incorporating one sensitizer (Pt(II) mesotetraphenyl tetrabenzoporphyrine, PtTPBP) and two annihilators (R/S-DPA and R/S-BDP) within liquid crystals. The chiral
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Increase of chiral sensing ability in host-guest chemistry by magnetic anisotropy Sci. China Chem. (IF 10.4) Pub Date : 2024-06-19 Jia-Liang Chen, Bin Li, Feng Yang, Tiesheng Shi, Xun-Cheng Su
Enantiomeric molecules generally play distinct functions in chemistry, biology, and pharmacology. Similar physical and chemical properties of chiral analytes lay difficulty in discrimination and quantification of the enantiomers. We report herein an efficient approach of increasing the chiral sensing ability of β-cyclodextrin (β-CD), a widely used host molecule, in the host-guest chemistry by magnetic
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Self-assembled amphiphilic NIR-II emissive nano-micelles for imaging-guided photothermal therapy of colorectal cancer Sci. China Chem. (IF 10.4) Pub Date : 2024-06-20 Axin He, Fangfang Xia, Da Han, Qinglai Yang, Weihong Tan
Colorectal cancer (CRC) is one of the major causes of cancer-related mortality worldwide. Most near-infrared (NIR) agents used in clinical CRC treatment are at NIR-I (700–900 nm) window, which has limitations on deep tissue, and fluorescent probes in the second NIR (1,000–1,700 nm) allow high-resolution bioimaging with deep tissue penetration. However, existing NIR-II fluorophores used in clinical
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Multidisciplinary and multiscale nanoscience research roadmap based on large scientific facilities Sci. China Chem. (IF 10.4) Pub Date : 2024-06-20 Yuan Zeng, Shuhan Zhang, Yuecong Guo, Yalin Cong, Xu Ding, Peihua Li, Yunxiang Lin, Wenzhi Ren, Hui Su, Weigang Sun, Liuxin Xu, Guikai Zhang, Shihua Chen, Yu Chen, Weiren Cheng, Shengqi Chu, Yong Guan, Jinru Han, Jie Lin, Hengjie Liu, Zheyi Liu, Pan Luo, Fanchun Meng, Sicong Qiao, Zongyin Song, Ying Wang, Zhao Wu, Chenyu Yang, Meng Yang, Shirui Yang, Zi Yin, Zhibin Yin, Pengjun Zhang, Hongyu Zhang
With the advancement of modern science and technology, large scientific facilities are increasingly oriented toward demand and application, and can be used for basic research as well as serving multiple disciplines. Developing large scientific facilities and related analytical technologies enhances understanding of large scientific facilities and popularizes their application in research across multiple
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MnO-pillared graphene blocks enabling the ultrastable and ultrafast aqueous zinc ion batteries Sci. China Chem. (IF 10.4) Pub Date : 2024-06-20 Zheng Liu, Zhipeng Qiu, Zhiyuan Li, Tong Wei, Zhuangjun Fan, Huan Pang
Due to the low cost, high theoretical capacity, and environmental friendliness, manganese-based cathodes are regarded as promising alternatives for aqueous zinc ion batteries (AZIBs). However, the practicality of the zinc-manganese system is faced with great challenges, such as the inevitable structural collapse of the cathode and controversial energy storage mechanisms. Herein, we propose a novel
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Ce- and La-doped polymetallic layered double hydroxides for enhanced oxygen evolution reaction performance at high current density Sci. China Chem. (IF 10.4) Pub Date : 2024-06-20 Rinel R. Kimaka P., Ping Wang, Miao He, Senyao Meng, Jiasai Yao, Huawei Li, Cheng Yang, Zhenxing Li
Polymetallic layered double hydroxides are promising cost-effective catalysts for the oxygen evolution reaction (OER) due to their versatile anionic and cationic tunability. Nevertheless, several challenges persist, notably, issues related to low electrical conductivity, poor catalytic activity, and stability, especially at high current density. Herein, we report the design of Ce- and La-doped CoNiFe-layered
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Engineering self-catabolic DNAzyme nanospheres for synergistic anticancer therapy Sci. China Chem. (IF 10.4) Pub Date : 2024-06-13 Yu Chen, Yu Guo, Jiaoli Wang, Ruiting Liu, Xiaohai Yang, Kemin Wang, Ying Pu, Hui Shi, Jin Huang
DNAzyme-based gene therapy faces some challenges including cell penetration, activity limitation, and co-delivery functions. Self-assembled DNA nanomedicine has attracted widespread attention due to its many advantages. It is urgent to develop a universal DNA degradation strategy for precise programmable drug release. Herein, we reported a self-catabolic DNAzyme nanospheres (SCNS), which could simultaneously
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Single-atom-mediated electron islands boost photocatalytic CO2 chemical fixation Sci. China Chem. (IF 10.4) Pub Date : 2024-06-13 Shu Shang, Lei Li, Xin He, Hui Wang, Lirong Zheng, Wei Shao, Xiaodong Zhang, Yi Xie
Photocatalytic cycloadditions of CO2 with epoxides are emerging as a significant platform for the green synthesis of valuable carbonates, where efficient catalytic systems with spatially separated charge carriers are demanded. Herein, a single p-block metal atom is proposed to be a candidate for photogenerated electron localization on a metal oxide substrate. By taking the Bi single-atom supported
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Light-driven sextuple theranostics: nanomedicine involving second near-infrared AIE-active Ir(III) complex for prominent cancer treatment Sci. China Chem. (IF 10.4) Pub Date : 2024-06-11 Xue Liu, Jiangao Li, Fei Zhang, Dingyuan Yan, Lei Wang, Dong Wang, Ben Zhong Tang
Light-driven cancer theranostics has shown inexhaustible and vigorous vitality by virtue of its high efficacy, prominent controllability and noninvasiveness. Exploration of an all-round theranostic material simultaneously affording both multimodal diagnosis imaging and synergistic phototherapy would be an appealing yet significantly challenging task. Herein, a novel nanomedicine Ir@PPEG-MeEPO was ingeniously
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Combination of methylthio-chemistry with living crystallization-driven self-assembly toward uniform π-conjugated nanostructures with antibacterial activity, surface tailorability, tunable morphology and dimension Sci. China Chem. (IF 10.4) Pub Date : 2024-06-12 Chuyu Duan, Binbin Xu, Ruru Li, Xiaoyu Huang, Shaoliang Lin, Chun Feng
Living crystallization-driven self-assembly (CDSA) provides robust access to uniform π-conjugated nanostructures (CNSs) from block copolymers (BCPs) containing a crystalline π-conjugated segment with controlled dimension, morphology and composition, which show appealing applications in biomedicine, photocatalysis and microelectronics. To further expand the application spectrum of these CNSs, the development
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Chiral multiple-resonance thermally activated delayed fluorescence materials based on chiral spiro-axis skeleton for efficient circularly polarized electroluminescence Sci. China Chem. (IF 10.4) Pub Date : 2024-06-11 Shi-Quan Song, Xiao Han, Zhong-Zhong Huo, Ching-Fai Yip, Xian-Fang Hong, Meng-Ning Ding, You-Xuan Zheng
Chiral luminescence materials have potential applications in the field of three-dimensional displays due to their circularly polarized luminescence (CPL) characteristics. However, the further development of circularly polarized organic light-emitting diodes (CP-OLEDs) needs to meet the requirements of high efficiency, high color purity, low cost, and high dissymmetry factor (gPL or gEL), chiral multiple
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Microwave-accelerated direct regeneration of LiCoO2 cathodes for Li-ion batteries Sci. China Chem. (IF 10.4) Pub Date : 2024-06-11 Xueshan Hu, Yun-Chao Yin, Chao Li, Lihui Zhou, Lin Yang, Yitian Feng, Daxian Zuo, Chenhui Ning, Das Soham, Sheng Dai, Longbin Qiu, Lin Zeng, Haw Jiunn Woo, Jiayu Wan
Recycling spent lithium-ion batteries is integral to today’s low-carbon environmental protection efforts. The concept of direct regeneration, acknowledged for its environmental sustainability, economic viability, and consistent performance of recycled materials, is gaining prominence. This study presents an efficient and nondestructive approach by utilizing an ultrafast microwave technology to directly
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Combinations of electron and proton donors in transition-metal complex mediated nitrogen reduction reactions Sci. China Chem. (IF 10.4) Pub Date : 2024-06-14 Delong Han, Li Yang, Hao Huang, Priyanka Chakraborty, Shashikant U. Dighe, Kuo-Wei Huang
Nitrogen fixation is a complex process involving the transfer of six electrons and protons. Diverging from the conventional Haber-Bosch process, which relies on hydrogen (H2) to provide both electrons and protons to reduce nitrogen (N2), homogeneous transition metal complex-catalyzed N2 reduction reactions (NRR) employ an array of electron and proton donors or even electron donors combined with silanes
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Review on birefringence in borates based on birefringence-active functional groups and arrangements Sci. China Chem. (IF 10.4) Pub Date : 2024-06-14 Qianzhen Zhang, Ran An, Zhihua Yang, Xifa Long, Shilie Pan, Yun Yang
As a fundamental parameter of the optical crystals, birefringence plays a vital role in many optical applications, such as phase modulation, light splitting, and polarization, especially the phase matching process of the nonlinear optical crystals. The big birefringence not only benefits to the miniaturization of related devices, but also broadens the phase-matching wavelength range of nonlinear optical
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Acceptor-planarized type I photosensitizer for lipid droplet-targeted two-photon photodynamic therapy by ferroptosis Sci. China Chem. (IF 10.4) Pub Date : 2024-06-14 Jie Sha, Weimin Liu, Jiasheng Wu, Yanping Wang, Xuewei Li, Haohui Ren, Zhi Pang, Wenjun Zhang, Chun-Sing Lee, Pengfei Wang
Two-photon photodynamic therapy (TP-PDT) has garnered significant attention because of its excellent depth of tissue penetration and high spatiotemporal selectivity. However, the limited targeting ability and oxygen dependency of photosensitizers (PSs) significantly hinder the effectiveness of photodynamic therapy in hypoxic tumor treatment. Herein, we designed and synthesized two lipid droplet (LD)-targeted
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Understanding the cooperative effects in the catalysis of homodimeric fluoroacetate dehalogenase Sci. China Chem. (IF 10.4) Pub Date : 2024-06-14 Ke-Wei Chen, Jia-Nan Chen, Jun Zhang, Chao Wang, Tian-Yu Sun, Yun-Dong Wu
Fluoroacetate dehalogenases (FAcD), a homodimeric enzyme, catalyzes the conversion of fluoroacetic acid to glycolic acid (GoA). It has been proved that the enzyme has a half-of-the-site reactivity. Namely, its catalytic (C) subunit converts the first substrate to a covalent intermediate; then, the non-catalytic (NC) subunit binds a second substrate and promotes the conversion of the intermediate in
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Eco-friendly fractionation of natural straws: sustainable ultralong room-temperature phosphorescence and super anti-ultraviolet materials Sci. China Chem. (IF 10.4) Pub Date : 2024-06-14 Zhenghao Xia, Jingxuan You, Haojie An, Yirong Wang, Jinming Zhang, Chunchun Yin, Yaohui Cheng, Kunfeng Jin, Jun Zhang
We demonstrate a new green solvent consisting of ionic liquid and polyol to achieve a selective fractionation of lignin from biomass. The lignin from corn straw is rich in syringyl unit and phenolic hydroxyl group, resulting in excellent room-temperature phosphorescence (RTP) performance, antioxidation property and long-term photostability. Flexible film, fiber, aerogel and coatings with an ultralong
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Printable oil-NiOX hole transport layer enables efficient n-i-p perovskite solar cells with a high thermal stability Sci. China Chem. (IF 10.4) Pub Date : 2024-06-14 Yazhou Xu, Zhaoyang Chu, Hongyu Wang, Zhi Xing, Baojin Fan, Xiaotian Hu, Yiwang Chen
Currently, highly efficient n-i-p perovskite solar cells rely on an organic interface layer for high efficiency, especially 2,2′,7,7′-tetrakis [N,N-bis(4-methoxyphenyl) ami-no]-9,9′-spirobifluorene (spiro-OMeTAD), but the instability of organic materials in the photothermal field compromises device stability. In this study, we employ the oleic acid (YS)/oleamine (YA) end-sealing method to achieve uniform
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Efficient synthesis of bottle-brush polymers enabled by selective photoactivation strategy in NIR-induced PET-RAFT polymerization Sci. China Chem. (IF 10.4) Pub Date : 2024-06-14 Hao Zha, Lin Cheng, Zuowei Wang, Chao Liu, Chunyan Hong
Bottle-brush polymers possessing densely grafted side chains have special properties that are distinct from linear macromolecules. Herein, an efficient method for preparing bottle-brush polymers based on a selective photoactivation strategy in the photoinduced electron/energy transfer reversible addition-fragmentation chain transfer (PET-RAFT) polymerization was developed. A methacrylate monomer 2
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Al-containing Ge-rich IWV: rapid synthesis via interzeolite transformation and application in Baeyer-Villiger oxidation Sci. China Chem. (IF 10.4) Pub Date : 2024-06-06 Meichen Jiao, Chunmin Jia, Hao Xu, Peng Wu, Xian-Ming Zhang
Ge-containing Lewis acidic zeolites are typically synthesized using a conventional hydrothermal strategy from amorphous silica sources, through a long time- and energy-consuming approach limiting their wide applications. This study reports a rapid synthesis strategy for a series of IWV aluminogermanosilicate zeolites (T-x-Al) with a wide range of Si/Ge molar ratios (5–15) by interzeolite transformation