{"title":"Steric‐Dominated Intermediate Stabilization by Organic Cations Enables Highly Selective CO2 Electroreduction","authors":"Zishan Han, Xinyu Wang, Zhiguo Li, Jiachen Gao, Zheng Hu, Yaogang Wang, Siqi Li, Xuejiao Mao, Quan-hong Yang, Zhe Weng","doi":"10.1002/anie.202504785","DOIUrl":"https://doi.org/10.1002/anie.202504785","url":null,"abstract":"Precisely modulating the binding energies of intermediates through cationic engineering remains a pivotal challenge in controlling reaction pathways and improving selectivity for electrocatalytic CO2 reduction reaction (CO2RR). While alkali cations are widely recognized as stabilizing intermediates via electrostatic interactions, this study proposes a steric‐effect‐dominated strategy using organic quaternary ammonium cations (CnTA+) to flexibly tune the adsorption of intermediates. Through in‐situ attenuated total reflectance‐surface enhanced infrared absorption spectroscopy (ATR‐SEIRAS), we elucidate that CnTA+ cations with longer alkyl chains substitute K+ more efficiently within the electrical double layer, exhibiting higher affinity for the Cu surface. This steric dominance significantly enhances the adsorption of key intermediates, steering the pathway toward formic acid (HCOOH) production. An improved Faradaic efficiency (FE) up to 90% for HCOOH was achieved using octadecyl trimethyl ammonium (C18TA+) cations. This molecular engineering strategy provides a route to flexibly tune the adsorption of intermediates to improve the performance of CO2RR.","PeriodicalId":125,"journal":{"name":"Angewandte Chemie International Edition","volume":"4 1","pages":""},"PeriodicalIF":16.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144153342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fapu Wu, Bingbing Zheng, Xinyu Qiu, Tao Hu, Yuexia Yang, Kairong Yang, Bijia Zhou, Qian Ma, Dai-Wen Pang, Hu Xiong
{"title":"Access to Diverse Activatable Heptamethine Cyanine Probes with Low Intrinsic Fluorescence via 5-exo-trig Cyclization Strategy for High-Contrast Bioimaging In Vivo","authors":"Fapu Wu, Bingbing Zheng, Xinyu Qiu, Tao Hu, Yuexia Yang, Kairong Yang, Bijia Zhou, Qian Ma, Dai-Wen Pang, Hu Xiong","doi":"10.1002/anie.202423059","DOIUrl":"https://doi.org/10.1002/anie.202423059","url":null,"abstract":"The conversion of conventional “always-on” cyanine dyes into activatable NIR probes with low inherent fluorescence remains challenging, resulting in poor imaging contrast and nonspecific response in vivo. We herein report a 5-exo-trig cyclization strategy to create diverse activatable heptamethine cyanine probes with “zero” intrinsic background fluorescence for high-contrast bioimaging. This intramolecular ring-closure approach imparts a built-in switch to regulate the fluorescence of cyanine dyes, which predominantly exist in the nonfluorescent closed-loop form at pH over 5.0 and are not affected by environmental polarity and protein interaction, thereby reducing false-positive fluorescent signals. Upon reaction with various biomarkers, including methylglyoxal (MGO), hydroxyl radical (·OH), and adenosine triphosphate (ATP), they could rapidly transform into fluorescent open-loop structures, showing significant NIR fluorescence enhancement (up to 184-fold). Furthermore, we extended this strategy to develop a variety of NIR-II ATP-activatable cyanine probes for the first time, as well as a theranostic probe 57 using host-guest chemistry. Probe 57 not only sensitively monitored ATP levels in inflammatory bowel disease with a high signal-to-background ratio of 48/1, but it also precisely detected extracellular ATP in stools. This work opens a new avenue to develop stimuli-responsive NIR cyanine probes for improving disease diagnosis.","PeriodicalId":125,"journal":{"name":"Angewandte Chemie International Edition","volume":"12 1","pages":""},"PeriodicalIF":16.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144153521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Baoli Ding, Jiawen Hu, Rongtian Zhang, Binyan Shou, Mengdie Chen, Li Jiang, Meng Yuan, Bo Yang, Qiaojun He, Ji Cao, Chengliang Zhu
{"title":"Solid‐Phase Parallel Synthesis of Photo‐cleavable Bifunctional Molecules Enables Efficient Phenotypic Protein Degrader Discovery","authors":"Baoli Ding, Jiawen Hu, Rongtian Zhang, Binyan Shou, Mengdie Chen, Li Jiang, Meng Yuan, Bo Yang, Qiaojun He, Ji Cao, Chengliang Zhu","doi":"10.1002/anie.202424118","DOIUrl":"https://doi.org/10.1002/anie.202424118","url":null,"abstract":"Phenotypic screening offers an effective path for discovering protein degraders, particularly targeting proteins that are poorly characterized or lack sufficient ligand‐binding information. Nonetheless, phenotypic protein degrader discovery (PPDD) faces significant hurdles, such as synthetic complexity in generating chemically diverse libraries and difficulties in reliably identifying degradation‐driven phenotypes in direct‐to‐biology (D2B) screening. In response to these challenges, we developed an integrated PPDD platform that combines optimized solid‐phase parallel synthesis with a robust D2B screening workflow. Leveraging photo‐cleavable linkers and versatile synthetic strategies, this platform facilitates rapid generation of chemically diverse, ready‐to‐screen bifunctional molecule libraries requiring minimal purification. As a proof‐of‐concept, we synthesized and phenotypically screened 130 cereblon‐recruiting molecules, leading to several promising protein degradation‐dependent hits. Subsequent hit optimization and target identification validated compound 12‐60 as a structurally novel GSPT1 degrader with compelling cellular activity. Overall, our integrated platform represents an efficient and practical toolkit for PPDD, establishing a versatile foundation to accelerate future campaigns and expand the degradable proteome.","PeriodicalId":125,"journal":{"name":"Angewandte Chemie International Edition","volume":"45 1","pages":""},"PeriodicalIF":16.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144153341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jun Yu, Boyu Song, Yusen Yang, Tianyong Liu, Zhe Li, Yang Han, Xusheng Liu, Hao Meng, Lei Wang, Lirong Zheng, Xin Zhang, Weili Dai, Min Wei
{"title":"Highly-Active Pt-Fe Catalysts towards CO Preferential Oxidation with an Ultra-wide Temperature Window","authors":"Jun Yu, Boyu Song, Yusen Yang, Tianyong Liu, Zhe Li, Yang Han, Xusheng Liu, Hao Meng, Lei Wang, Lirong Zheng, Xin Zhang, Weili Dai, Min Wei","doi":"10.1002/anie.202510593","DOIUrl":"https://doi.org/10.1002/anie.202510593","url":null,"abstract":"Preferential oxidation of CO in H2 is a promising solution to remove residual CO in feed stream to avoid Pt poisoning in proton-exchange-membrane fuel cells, in which the development of high-efficiency catalysts with a wide temperature window remains a great challenge. Herein, we report a Fe(OH)x modified Pt clusters (~1.6 nm) catalyst supported on MgAlOx derived from PtFeMgAl-layered double hydroxides precursor, which is featured with abundant Ptδ+–(OH)x–Fe3+ interfacial sites. Impressively, the optimal catalyst Pt-Fe(OH)x/MA exhibits exceptional catalytic performance towards CO-PROX, which can completely remove CO in a H2-rich stream with an ultra-wide full CO conversion window (25−225 °C) at a rather high space velocity (130000 mL gcat−1 h−1). The mass-specific activity reaches to 9.09 molCO gPt−1 h−1 at 25 °C, which is preponderant to the state-of-the-art catalysts. In addition, a 240-h stream-on-line test over Pt-Fe(OH)x/MA shows a satisfactory stability. A comprehensive investigation based on in situ experimental studies and theoretical calculations reveals that the –OH group at the Ptδ+–(OH)x–Fe3+ interfacial site is easily bound to the linearly-adsorbed CO at the adjacent Ptδ+ site to form carboxylate intermediate, followed by its decomposition to CO2. Meanwhile, the generated coordination unsaturated Fe2+ site facilitates the activation cracking of O2 molecule without energy barrier.","PeriodicalId":125,"journal":{"name":"Angewandte Chemie International Edition","volume":"36 1","pages":""},"PeriodicalIF":16.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144165766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ruidian Su, Zhen Liu, Jieshan Qiu, Nan Li, Xing Xu, Baoyu Gao, Qian Li
{"title":"Photoexcited Hole-Enabled Synthesis of Surface High-Valent Cobalt-Oxo Species with Water as the Oxygen Atom Source for Water Purification","authors":"Ruidian Su, Zhen Liu, Jieshan Qiu, Nan Li, Xing Xu, Baoyu Gao, Qian Li","doi":"10.1002/anie.202507085","DOIUrl":"https://doi.org/10.1002/anie.202507085","url":null,"abstract":"High-valent cobalt-oxo species (CoIV=O) are key intermediates in catalytic chemistry but suffer a great challenge in their efficient and mild synthesis due to the strong electronic repulsion between the cobalt center and the oxygen ligand. Herein, we report a new approach to synthesizing surface CoIV=O on the Co3O4/BiVO4 (CoBi) catalyst via a photoexcited hole-induced process using water as the oxygen atom source. The interfacial Co2+-O-Bi3+ bonds act as the atomic-level channels to directionally transport photoexcited holes driven by the internal electric field effect. It has been found that H2O was photolyzed to cobalt-coordinated hydroxyls that were turned to CoIV=O via a photoexcited hole-induced deprotonation. The isotopic labeling experiments confirmed that the oxygen atom source of CoIV=O was derived from water rather than chlorite. A synergistic effect was formed between photocatalysis and transition metal-catalyzed chlorite activation, which enhanced the degradation of sulfadiazine (SDZ) and elevated the conversion ratio of chlorite to ClO2 from 40% to 60%. The present work has elucidated the essential role of H2O and photoexcited holes in the formation of CoIV=O and provides a viable strategy to synthesize surface high-valent metal species utilizing ubiquitous water and sunlight for water purification.","PeriodicalId":125,"journal":{"name":"Angewandte Chemie International Edition","volume":"1 1","pages":""},"PeriodicalIF":16.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144165767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jiamin Fu, Han Su, Jing Luo, Xiaona Li, Jianwen Liang, Changhong Wang, Jung Tae Kim, Yang Hu, Feipeng Zhao, Shumin Zhang, Hui Duan, Xiaoge Hao, Weihan Li, Jian Peng, Jue Liu, Shuo Wang, Tsun-Kong Sham, Xueliang Sun
{"title":"Chemical Bond Covalency in Superionic Halide Solid-State Electrolytes","authors":"Jiamin Fu, Han Su, Jing Luo, Xiaona Li, Jianwen Liang, Changhong Wang, Jung Tae Kim, Yang Hu, Feipeng Zhao, Shumin Zhang, Hui Duan, Xiaoge Hao, Weihan Li, Jian Peng, Jue Liu, Shuo Wang, Tsun-Kong Sham, Xueliang Sun","doi":"10.1002/anie.202508835","DOIUrl":"https://doi.org/10.1002/anie.202508835","url":null,"abstract":"Halide solid-state electrolytes (SSEs) are promising superionic conductors with high oxidative stability and ionic conductivity, making them attractive for all-solid-state lithium-ion batteries. However, most studies have focused on ion-stacking structures, overlooking the role of bond characteristics in ionic transport. Here, we investigate bond dynamics and the superionic transition (SIT) in bromide electrolyte, Li3InBr6, using synchrotron X-ray techniques and ab initio molecular dynamics (AIMD) simulations. We demonstrate that the SIT in halide SSEs is driven by a thermally induced transition in bonding character (ionic to covalent) rather than a change in crystal phase. AIMD simulations further reveal enhanced Li⁺ diffusion and collective anion motion at elevated temperatures. Expanding our study to Li3LnBr6 (Ln = Gd, Tb, Ho, Tm, Lu), we confirm the widespread occurrence of SIT in this material class, with Li3GdBr6 exhibiting the highest ionic conductivity (5.2 mS cm-1 at 298 K). More importantly, the ionic-covalent transition is highly tunable through electrolyte modifications, such as cation/anion substitution and synthesis methods. Our findings provide a new perspective on ionic transport, highlighting the critical role of chemical bond characteristics in halide SSEs.","PeriodicalId":125,"journal":{"name":"Angewandte Chemie International Edition","volume":"2 1","pages":""},"PeriodicalIF":16.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144165768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Solvent-Induced Chirality Inversion in Propeller-Shaped PDI Oligomers with Bright Circularly Polarized Luminescence","authors":"Yuma Tanioka, Masayoshi Takase, Mashiro Hamasu, Shogo Hata, Kohei Hashimoto, Shigeki Mori, Yukihide Ishibashi, Yuki Nukumi, Masahiro Higashi, Hirofumi Sato, Tetsuo Okujima, Hidemitsu Uno","doi":"10.1002/anie.202509190","DOIUrl":"https://doi.org/10.1002/anie.202509190","url":null,"abstract":"Circularly polarized luminescence (CPL) has the potential for next-generation optoelectronic applications. One of the major challenges in this field is the development of CPL emitters whose emission properties can be modulated by external stimuli, such as solvents. However, CPL-active materials are often synthetically demanding and typically require chiral separation. To address these limitations, we have synthesized a propeller-shaped molecule, (R/S)-Bz-6PDI 1, via a one-pot nucleophilic aromatic substitution reaction, using a chiral pyrrole-fused perylene diimide (PDI) 4 as the blade. The introduction of a chiral auxiliary into the blade enabled the induction of propeller chirality without the need for chiral chromatographic separation. (R)-Bz-6PDI 1 exhibited high CPL brightness in solution (BCPL = 103–369 M–1cm–1). Furthermore, the propeller chirality proved highly sensitive to the solvent environment, leading to significant modulation of both the sign and intensity of the CD and CPL signals, including complete signal inversion in CH2Cl2 and CHCl3. CD spectral analysis combined with DFT calculations revealed that the propeller chirality is governed by the orientation of the hydrogen atom in the chiral auxiliary.","PeriodicalId":125,"journal":{"name":"Angewandte Chemie International Edition","volume":"147 1","pages":""},"PeriodicalIF":16.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144165772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hang Zhang, Li Wan, Ziran You, Jianrong Liang, Da Lei, Yongyan Cui
{"title":"Chain-Chain Synergistic Hydrogel Electrolytes Regulate Zinc Ions Desolvation for Stabilized Anodes and High Operating Voltage in Flexible Zinc Ions Hybrid Capacitors","authors":"Hang Zhang, Li Wan, Ziran You, Jianrong Liang, Da Lei, Yongyan Cui","doi":"10.1002/anie.202507403","DOIUrl":"https://doi.org/10.1002/anie.202507403","url":null,"abstract":"To maximize the energy density output, the complementary charge storage mechanism of aqueous zinc ion hybrid capacitors (ZIHCs) is superior and advanced, but continuous water-induced side reactions and uncontrolled dendrite growth of zinc anodes remain challenging. Additionally, the optimization of the hydrogel electrolyte/electrode interface is necessary for the stability and kinetic reversibility of the flexible zinc-based energy storage device. Herein, the P(AM-SBMA) (copolymer of acrylamide AM and zwitterionic compound SBMA)/gelatin hydrogel electrolyte (PSG) with a special semi-interpenetrating network is designed based on the chain-chain synergistic regulation mechanism to regulate the desolvation of zinc ions and optimize the operating voltage of flexible ZIHCs and stabilize surface chemistry of zinc anode. The obtained PSG-5 hydrogel electrolyte widens the electrochemical stability windows (ESW) of the flexible ZIHC to 2.45 V, and achieves high Zn2+ transference number of 0.87 and highly reversible plating/stripping of the zinc anode. Furthermore, the corresponding flexible ZIHC exhibits a high operating voltage of 2.2 V and provides a favourable energy density of 117 Wh kg-1 at a power density of 293 W kg-1. This work provides useful insights for the development of efficient flexible ZIHCs by preparing hydrogel electrolytes capable of stabilizing zinc anodes and widening ESW.","PeriodicalId":125,"journal":{"name":"Angewandte Chemie International Edition","volume":"57 1","pages":""},"PeriodicalIF":16.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144165780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Najung Lee, Jonas Dechent, Elija Grinhagena, Jerome Waser
{"title":"Synthesis of Bicyclo[1.1.1]pentane Z-Substituted Enamides, Enol Ethers, and Vinyl Sulfides Using Iodine (III) Reagents","authors":"Najung Lee, Jonas Dechent, Elija Grinhagena, Jerome Waser","doi":"10.1002/anie.202508404","DOIUrl":"https://doi.org/10.1002/anie.202508404","url":null,"abstract":"Bicyclo[1.1.1]pentanes (BCPs) are well-studied bioisosteres for para-substituted benzene rings and numerous methods for synthesizing 1,3-difunctionalized BCPs have been developed. However, synthetic approaches to access vinyl BCP motifs remain limited, with only few reports on the synthesis of BCP-olefins bearing heteroatom substituents. Herein, we present the synthesis of BCP-substituted enamides, enol ethers, and vinyl sulfides through the sequential functionalization of ethynylbenziodoxolone (EBX) reagents containing a BCP scaffold. Stereoselective addition of a nucleophile generates heteroatomic Z-vinylbenziodoxolone (VBX) reagents. The hypervalent iodine substituent of the VBX reagents serves then as a versatile platform for further arylation, vinylation, and trifluoromethylation. This method provides a modular synthesis of previously inaccessible heteroatom-substituted vinyl BCPs.","PeriodicalId":125,"journal":{"name":"Angewandte Chemie International Edition","volume":"151 1","pages":""},"PeriodicalIF":16.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144153514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Qian Wang, Fangling Yang, Yuhang Wang, Di Zhang, Ryuhei Sato, Linda Zhang, Eric Jianfeng Cheng, Yigang Yan, Yungui Chen, Kazuaki Kisu, Shin-ichi Orimo, Hao Li
{"title":"Outside Front Cover: Unraveling the Complexity of Divalent Hydride Electrolytes in Solid-State Batteries via a Data-Driven Framework with Large Language Model","authors":"Qian Wang, Fangling Yang, Yuhang Wang, Di Zhang, Ryuhei Sato, Linda Zhang, Eric Jianfeng Cheng, Yigang Yan, Yungui Chen, Kazuaki Kisu, Shin-ichi Orimo, Hao Li","doi":"10.1002/anie.202510922","DOIUrl":"https://doi.org/10.1002/anie.202510922","url":null,"abstract":"By integrating large language models, big data analytics, and ab initio metadynamics simulations, Hao Li and co-workers developed a powerful AI-driven framework that unravels previously hidden ion migration pathways in hydride-based solid-state electrolytes (SSEs) (e202506573). This integrative approach enables accurate prediction and efficient screening of high-performance SSEs, paving the way for next-generation multivalent solid-state batteries.","PeriodicalId":125,"journal":{"name":"Angewandte Chemie International Edition","volume":"153 1","pages":""},"PeriodicalIF":16.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}