Vaibhav Parihar,Manpreet Kaur,T. J. Dhilip Kumar,C. M. Nagaraja
A noble-metal-free Zn(ii)-embedded COF is rationally designed for the efficient fixation of dilute CO2 with homopropargylic amines to afford value-added 1,3-oxazinan-2-ones under atmospheric pressure. The catalyst is highly recyclable and structurally robust, representing a rare example of Zn(ii)-COF-catalyzed dilute CO2 utilization to produce six-membered heterocycles.
{"title":"A Zn()-embedded covalent organic framework for catalytic valorization of dilute CO with homopropargylic amines into value-added heterocycles","authors":"Vaibhav Parihar,Manpreet Kaur,T. J. Dhilip Kumar,C. M. Nagaraja","doi":"10.1039/d6cc05217g","DOIUrl":"https://doi.org/10.1039/d6cc05217g","url":null,"abstract":"A noble-metal-free Zn(ii)-embedded COF is rationally designed for the efficient fixation of dilute CO2 with homopropargylic amines to afford value-added 1,3-oxazinan-2-ones under atmospheric pressure. The catalyst is highly recyclable and structurally robust, representing a rare example of Zn(ii)-COF-catalyzed dilute CO2 utilization to produce six-membered heterocycles.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"233 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dawei Fang,Jiarui Zhao,Kyatsinge Cedric Musavuli,Yali Yao,Zongren Song,Tianyi Ma,Ji-Chi Liu
A novel ionic liquid (DEMEOTf) bearing ether-functionalized cation is designed as electrolyte additive for aqeuous NH4+ battery. Wherein, DEMEOTf exerts triple effects: regulating NH4+ desolvation, forming cationic layer on PTCDA anode interface to isolate free water and facilitating NH4+ intercalation via H-bonding. The synergy enables high-rate and stable organic anode.
We report a green and atom-economical strategy for distal lactonization, enabling the efficient construction of structurally diverse lactone frameworks under mild conditions. This protocol employs a low loading of a metal-free photocatalyst to enable distal Csp³-H activation at the C6 and C11 sites via the 1,5-HAT process, thereby avoiding the use of stoichiometric reagents and minimizing hazardous waste generation. Notably, the reaction proceeds with high regioselectivity at distal C6 and C11 positions, offering a valuable platform for site-selective molecular editing.γ-Lactones are versatile synthetic intermediates and privileged structural motifs widely found in bioactive natural products and pharmaceuticals. 1 For example, γ-decalactone contributes to the aromas of numerous foods, the antibacterial peptidoglycan biosynthesis inhibitor Avenaciolide, the neurotrophic sesquiterpene Jiadifenolide, etc. (Figure 1a). The classical methods for the synthesis of saturated γ-lactones commonly rely on strategies such as halo-lactonization or intramolecular substitution, which require prefunctionalized γpositions bearing electrophilic or nucleophilic functionalities. 2 Recently, the straightforward and attractive alternative is direct access to γ-lactones from the corresponding carboxylic acids, which often requires a transition-metal-based catalyst or a directing group (Figure 1b) . 3a-3g Baeyer-Villiger oxidation, although reliable, often displays limited regioselectivity and requires stoichiometric oxidants that generate substantial waste. 3h-3i Transition-metal-catalyzed methods, while powerful, often rely on expensive or toxic metals, directing groups, or stoichiometric oxidants, and may operate under harsh conditions with limited site. In addition, substrate scope and functional-group tolerance are frequently constrained. Moreover, conventional radical-based lactonization reactions often demand elevated temperatures or strong oxidants, leading to poor selectivity and competing side reactions. Accordingly, the development of a simple, mild, and efficient method to address these challenges remains highly desirable. Radical-mediated C(sp³)-H functionalization provides a complementary strategy for selectively activating γ-methylene C-H bonds in aliphatic amides via a 1,5-hydrogen atom transfer (1,5-HAT) pathway. The advent of photoredox catalysis has further expanded the synthetic toolbox by activating inert and inaccessible C(sp3)–H bonds under mild, redox-neutral conditions. Because bond dissociation
{"title":"Organophotocatalytic radical relay for distal C(sp)–H lactonization of unactivated alkenes","authors":"Koustav Pal,Manasi Mallick,Shirsendu Giri,Anurag Nayak,Sureshkumar Devarajulu","doi":"10.1039/d6cc05566d","DOIUrl":"https://doi.org/10.1039/d6cc05566d","url":null,"abstract":"We report a green and atom-economical strategy for distal lactonization, enabling the efficient construction of structurally diverse lactone frameworks under mild conditions. This protocol employs a low loading of a metal-free photocatalyst to enable distal Csp³-H activation at the C6 and C11 sites via the 1,5-HAT process, thereby avoiding the use of stoichiometric reagents and minimizing hazardous waste generation. Notably, the reaction proceeds with high regioselectivity at distal C6 and C11 positions, offering a valuable platform for site-selective molecular editing.γ-Lactones are versatile synthetic intermediates and privileged structural motifs widely found in bioactive natural products and pharmaceuticals. 1 For example, γ-decalactone contributes to the aromas of numerous foods, the antibacterial peptidoglycan biosynthesis inhibitor Avenaciolide, the neurotrophic sesquiterpene Jiadifenolide, etc. (Figure 1a). The classical methods for the synthesis of saturated γ-lactones commonly rely on strategies such as halo-lactonization or intramolecular substitution, which require prefunctionalized γpositions bearing electrophilic or nucleophilic functionalities. 2 Recently, the straightforward and attractive alternative is direct access to γ-lactones from the corresponding carboxylic acids, which often requires a transition-metal-based catalyst or a directing group (Figure 1b) . 3a-3g Baeyer-Villiger oxidation, although reliable, often displays limited regioselectivity and requires stoichiometric oxidants that generate substantial waste. 3h-3i Transition-metal-catalyzed methods, while powerful, often rely on expensive or toxic metals, directing groups, or stoichiometric oxidants, and may operate under harsh conditions with limited site. In addition, substrate scope and functional-group tolerance are frequently constrained. Moreover, conventional radical-based lactonization reactions often demand elevated temperatures or strong oxidants, leading to poor selectivity and competing side reactions. Accordingly, the development of a simple, mild, and efficient method to address these challenges remains highly desirable. Radical-mediated C(sp³)-H functionalization provides a complementary strategy for selectively activating γ-methylene C-H bonds in aliphatic amides via a 1,5-hydrogen atom transfer (1,5-HAT) pathway. The advent of photoredox catalysis has further expanded the synthetic toolbox by activating inert and inaccessible C(sp3)–H bonds under mild, redox-neutral conditions. Because bond dissociation","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"34 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Matched-basis steady-RANS simulations separate single-rod axial nonuniformity from full-reactor rod-to-rod maldistribution in a jacketed silane reactor. Feed/exhaust topology strongly redistributes rod deposition at fixed precursor throughput, while the apparent cooling-jacket-radius response depends materially on the feed basis. Reduced chemistry is interpreted only within its configured scope.
{"title":"Scale-Resolved Silicon Deposition in a Jacketed Silane Reactor","authors":"Lu Qin,Jiyi Zhu,Yanzhe Gai,Pengfei Chu,Dezhi Yi,Qianjin Cai,Guojun Meng,Rui Guo,Yongfeng Lv,Hongjun Zhang,Guangning Qian,Chunxin Luo,Song Du,Zheng Liang","doi":"10.1039/d6cc00605a","DOIUrl":"https://doi.org/10.1039/d6cc00605a","url":null,"abstract":"Matched-basis steady-RANS simulations separate single-rod axial nonuniformity from full-reactor rod-to-rod maldistribution in a jacketed silane reactor. Feed/exhaust topology strongly redistributes rod deposition at fixed precursor throughput, while the apparent cooling-jacket-radius response depends materially on the feed basis. Reduced chemistry is interpreted only within its configured scope.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"69 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rapid Joule-heating annealing converts a 10 nm Au film into a centimetre-scale nanoparticle array within seconds. At 1100 °C, sub-10 nm gaps yield an apparent enhancement factor of 6.74 for BSA. The calculated detection limit is 0.512 µM, with protein monolayer detection demonstrated for covalently immobilized BSA and HSA.
{"title":"Seconds-scale Joule-heating fabrication of gap-rich gold nanoparticle arrays for SEIRA detection of protein monolayers","authors":"Xin-Xin Wan,Wen-Ding Ye,Xin Gong,Han-Yu Lin,Zhiming Deng,Geng-Ze Chen,Pingping Zhuang,Haoran Wang,Jing Liu,En-Ming You","doi":"10.1039/d6cc05111a","DOIUrl":"https://doi.org/10.1039/d6cc05111a","url":null,"abstract":"Rapid Joule-heating annealing converts a 10 nm Au film into a centimetre-scale nanoparticle array within seconds. At 1100 °C, sub-10 nm gaps yield an apparent enhancement factor of 6.74 for BSA. The calculated detection limit is 0.512 µM, with protein monolayer detection demonstrated for covalently immobilized BSA and HSA.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"62 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Self-assembled monolayers (SAMs) have emerged as one of the most promising hole-selective materials for inverted perovskite solar cells (PSCs), where their interface regulation capability plays a decisive role in device efficiency and long-term stability. However, conventional small-molecule SAMs suffer from inherent limitations including insufficient anchoring strength, undesirable molecular aggregation and poor interfacial stability. This review systematically summarizes the interfacial regulation mechanism and the influence of molecular design strategies of the small-molecule SAMs with typical anchoring groups. Furthermore, we thoroughly review the recent progress of polymeric SAMs and in-situ crosslinking SAMs, with emphasis on their superiority in enhancing interfacial adhesion, solvent resistance, and thermal cycling durability. Finally, the future development directions of SAMs are prospected in terms of large-area and tandem PSCs, aiming to provide insightful guidelines for the design and optimization of next-generation high-performance perovskite photovoltaics.
{"title":"Recent Advances in Self-Assembled Monolayers for Perovskite Solar Cells: from Small Molecule to Polymer","authors":"Jiaqi Huang,Lianggen Zhai,Chunle Yuan,Haoxin Zhou,Aihui Liang","doi":"10.1039/d6cc05106e","DOIUrl":"https://doi.org/10.1039/d6cc05106e","url":null,"abstract":"Self-assembled monolayers (SAMs) have emerged as one of the most promising hole-selective materials for inverted perovskite solar cells (PSCs), where their interface regulation capability plays a decisive role in device efficiency and long-term stability. However, conventional small-molecule SAMs suffer from inherent limitations including insufficient anchoring strength, undesirable molecular aggregation and poor interfacial stability. This review systematically summarizes the interfacial regulation mechanism and the influence of molecular design strategies of the small-molecule SAMs with typical anchoring groups. Furthermore, we thoroughly review the recent progress of polymeric SAMs and in-situ crosslinking SAMs, with emphasis on their superiority in enhancing interfacial adhesion, solvent resistance, and thermal cycling durability. Finally, the future development directions of SAMs are prospected in terms of large-area and tandem PSCs, aiming to provide insightful guidelines for the design and optimization of next-generation high-performance perovskite photovoltaics.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"74 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mahesh Y. Nagtilak,Amar Sain,Jagadeesh Babu Nanubolu,Rambabu Chegondi
Herein, we report a Cu(II)-mediated brominative annulation of alkyne-tethered cyclohexa-2,5-dienones using inexpensive CuBr₂ as both the bromine source and alkyne activator, affording densely functionalized cis-hydrobenzofurans bearing versatile vinyl bromides. Unexpectedly, 2,6-disubstituted substrates underwent a metal-free thermal enyne cyclization via an Alder–ene pathway, selectively furnishing cis-hydrobenzofurans bearing conjugated exocyclic olefins.
{"title":"Copper-mediated Brominative Cyclization of Alkyne-tethered Cyclohexadienones","authors":"Mahesh Y. Nagtilak,Amar Sain,Jagadeesh Babu Nanubolu,Rambabu Chegondi","doi":"10.1039/d6cc05920a","DOIUrl":"https://doi.org/10.1039/d6cc05920a","url":null,"abstract":"Herein, we report a Cu(II)-mediated brominative annulation of alkyne-tethered cyclohexa-2,5-dienones using inexpensive CuBr₂ as both the bromine source and alkyne activator, affording densely functionalized cis-hydrobenzofurans bearing versatile vinyl bromides. Unexpectedly, 2,6-disubstituted substrates underwent a metal-free thermal enyne cyclization via an Alder–ene pathway, selectively furnishing cis-hydrobenzofurans bearing conjugated exocyclic olefins.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"16 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Correction for ‘A novel small-molecule fluorescent probe caused by minimal structural modifications for specific staining of the cell nuclear membrane’ by Wendong Jin et al., Chem. Commun., 2025, 61, 2107–2110, https://doi.org/10.1039/d4cc06678b.
{"title":"Correction: A novel small-molecule fluorescent probe caused by minimal structural modifications for specific staining of the cell nuclear membrane","authors":"Wendong Jin,Yang Liu,Qing Lu,Jie Huang,Zhiqiang Liu,Xiaoqiang Yu","doi":"10.1039/d6cc90334g","DOIUrl":"https://doi.org/10.1039/d6cc90334g","url":null,"abstract":"Correction for ‘A novel small-molecule fluorescent probe caused by minimal structural modifications for specific staining of the cell nuclear membrane’ by Wendong Jin et al., Chem. Commun., 2025, 61, 2107–2110, https://doi.org/10.1039/d4cc06678b.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"74 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Herein, we firstly report a sub-atmospheric pressure Joule heating strategy for the synthesis of geometrically curved Fe-N4 single-atom catalyst with hillock-like nanocarbon (Cur-Fe SAC). The Cur-Fe SAC delivers an exceptional oxygen reduction reaction (ORR) activity with a half-wave potential (E1/2) of 0.911 V versus RHE, surpassing most noble-metal-free ORR catalysts. This work provides new insights into the design of single-atom catalysts with curved configurations for efficient electrocatalysis.
在此，我们首次报道了一种亚大气压焦耳加热策略，用于合成具有丘状纳米碳的几何弯曲的Fe-N4单原子催化剂（cu - fe SAC）。与RHE相比，cu - fe SAC具有优异的氧还原反应（ORR）活性，半波电位（E1/2）为0.911 V，超过了大多数无贵金属的ORR催化剂。这项工作为设计具有弯曲结构的高效电催化单原子催化剂提供了新的见解。
{"title":"Highly accessible geometrically curved Fe-N4 sites on hillock-like nanocarbon via sub-atmospheric pressure Joule heating for boosting electrochemical oxygen reduction","authors":"Feng Liu,Linhui Cui,Jianfei Cheng,Kai Ge,Bolong Yang,Shuai Yuan,Zhicheng Zhai,Yuan Ji,Rongrong Jiang,Yingchun Guo,Lei Shi,Heng Zhang","doi":"10.1039/d6cc06204k","DOIUrl":"https://doi.org/10.1039/d6cc06204k","url":null,"abstract":"Herein, we firstly report a sub-atmospheric pressure Joule heating strategy for the synthesis of geometrically curved Fe-N4 single-atom catalyst with hillock-like nanocarbon (Cur-Fe SAC). The Cur-Fe SAC delivers an exceptional oxygen reduction reaction (ORR) activity with a half-wave potential (E1/2) of 0.911 V versus RHE, surpassing most noble-metal-free ORR catalysts. This work provides new insights into the design of single-atom catalysts with curved configurations for efficient electrocatalysis.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"33 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149218243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
An ionic liquid (IL) monomer, [VBIM][BF4], was in-situ photopolymerized (PIL) and grown throughout the framework of ZIF-8. We show that PIL effectively mitigate skeleton collapse through physical confinement pyrolysis within 3D interconnected pores that stabilize ligands, thereby maintaining the well-defined morphology and hierarchical pore structure of the ZIF-8 derived carbon pseudomorph. The resulting advanced catalyst exhibits enhanced intrinsic activity through rapid mass transport during the ORR process, achieving an enhanced turnover frequency.
{"title":"Poly(ionic liquid)-mediated regulation of the structural integrity of ZIF-8-derived porous carbon for enhanced mass transport","authors":"Yu Wang,Yingjie Chang,Yanqing Wang,Qi Li","doi":"10.1039/d6cc06660g","DOIUrl":"https://doi.org/10.1039/d6cc06660g","url":null,"abstract":"An ionic liquid (IL) monomer, [VBIM][BF4], was in-situ photopolymerized (PIL) and grown throughout the framework of ZIF-8. We show that PIL effectively mitigate skeleton collapse through physical confinement pyrolysis within 3D interconnected pores that stabilize ligands, thereby maintaining the well-defined morphology and hierarchical pore structure of the ZIF-8 derived carbon pseudomorph. The resulting advanced catalyst exhibits enhanced intrinsic activity through rapid mass transport during the ORR process, achieving an enhanced turnover frequency.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"45 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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