Shabnam Raheem, Faheem Fayaz, Majid Ahmed Ganie, Masood Ahmad Rizvi, Bhahwal Ali Shah
We report the first photoredox-mediated one-step synthesis of propargylic sulfoxides from (3-chloroprop-1-yn-1-yl)benzene and thiols. The protocol obviates the need for external oxidants typically required for the oxidation of sulfides to sulfoxides. The approach offers a streamlined platform for accessing these valuable organosulfur compounds in a single step, with high chemoselectivity and functional-group tolerance.
{"title":"Photoredox mediated synthesis of propargylic sulfoxides: A one-step aerobic approach","authors":"Shabnam Raheem, Faheem Fayaz, Majid Ahmed Ganie, Masood Ahmad Rizvi, Bhahwal Ali Shah","doi":"10.1039/d6cc00022c","DOIUrl":"https://doi.org/10.1039/d6cc00022c","url":null,"abstract":"We report the first photoredox-mediated one-step synthesis of propargylic sulfoxides from (3-chloroprop-1-yn-1-yl)benzene and thiols. The protocol obviates the need for external oxidants typically required for the oxidation of sulfides to sulfoxides. The approach offers a streamlined platform for accessing these valuable organosulfur compounds in a single step, with high chemoselectivity and functional-group tolerance.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"289 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146101848","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}
The significance of medium-sized rings is demonstrated by their being key structural cores in diverse bioactive molecules. Herein, we describe an efficient strategy for synthesizing oxindole-annulated medium-sized S-heterocycles via ring expansion [2,3]-sigmatropic rearrangement. This strategy features high substrate tolerance and yield, offering a versatile approach to such intricate skeletons.
{"title":"Construction of oxindole spiro medium-sized S-heterocycles via ring expansion [2,3]-sigmatropic rearrangement","authors":"Yongqiang Xu, Wenkai Li, Xiaoli Gu, Yuhan Zhou, Jingping Qu, Baomin Wang","doi":"10.1039/d5cc06578j","DOIUrl":"https://doi.org/10.1039/d5cc06578j","url":null,"abstract":"The significance of medium-sized rings is demonstrated by their being key structural cores in diverse bioactive molecules. Herein, we describe an efficient strategy for synthesizing oxindole-annulated medium-sized S-heterocycles via ring expansion [2,3]-sigmatropic rearrangement. This strategy features high substrate tolerance and yield, offering a versatile approach to such intricate skeletons.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"1 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146101849","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}
BTT-Tp-BD-COFs composed of three kinds of monomers display non-centrosymmetric molecular structure, thus contributing large diploe moment, reduced exction binding energy, enhanced charge separation efficiency, and modified surface hydrophily. As a result, the hydrogen evolution rate of the optimized BTT0.85Tp0.15BD-COF was significantly improved, reaching 7.62 mmol·g⁻¹·h⁻¹.
A novel yellow-orange thermally activated delayed fluorescence emitter with an asymmetric, high-orientation and rigid molecular structure is reported. This emitter simultaneously achieves a high photoluminescence quantum yield of 80% and an excellent horizontal dipole ratio of 91%, enabling an OLED with a maximum external quantum efficiency of 26.4%.
{"title":"A high orientation asymmetric TADF molecule with a 91% horizontal dipole ratio for high-efficiency organic light-emitting diodes.","authors":"Yanyan Liu, Xiaoyu Li, Jiaji Yang, Zixian Wang, Shi-Jian Su, Zhenguo Chi, Hai-Tao Feng","doi":"10.1039/d5cc06903c","DOIUrl":"https://doi.org/10.1039/d5cc06903c","url":null,"abstract":"<p><p>A novel yellow-orange thermally activated delayed fluorescence emitter with an asymmetric, high-orientation and rigid molecular structure is reported. This emitter simultaneously achieves a high photoluminescence quantum yield of 80% and an excellent horizontal dipole ratio of 91%, enabling an OLED with a maximum external quantum efficiency of 26.4%.</p>","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146099528","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}
Three novel trimercarbazole-based gold(Ι) complexes with positional isomeric auxiliary ligands are elaborately designed and developed. Notably, all these gold(Ι)-containing luminogens exhibit interesting aggregation-induced fluorescence-to-phosphorescence conversion and temperature-dependent phosphorescence characteristics. Furthermore, the gold(Ι) complex with ortho-substituted trifluoromethylphenyl auxiliary ligand demonstrates high-contrast hypsochromic phosphorescent mechanochromism.
A fluorochromic Eu-based MOF is developed for highly selective Zr(IV) detection. Leveraging the strong Lewis acidity of Zr(IV), competitive coordination to carboxylate sites induces framework dissociation, disrupts ligand-to-metal energy transfer, and produces a distinct red-to-blue luminescence shift, enabling sensitive and selective sensing with a detection limit of 333 nM.
{"title":"Lewis acidity driven fluorochromism in a lanthanide MOF for highly selective Zr(IV) detection","authors":"Tianxing Wang, Xinhui Dong, Yishan Hou, Shuhan Liu, Yue Yan, Xinyuan Mao, Yongxin Li, Yunyi Cui, Jian Lin","doi":"10.1039/d6cc00139d","DOIUrl":"https://doi.org/10.1039/d6cc00139d","url":null,"abstract":"A fluorochromic Eu-based MOF is developed for highly selective Zr(<small>IV</small>) detection. Leveraging the strong Lewis acidity of Zr(<small>IV</small>), competitive coordination to carboxylate sites induces framework dissociation, disrupts ligand-to-metal energy transfer, and produces a distinct red-to-blue luminescence shift, enabling sensitive and selective sensing with a detection limit of 333 nM.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"1 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116099","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}
Stable fluorine and chlorine decorated Thiele-like diradicaloids were synthetized and studied in solution and in thin films. Femtosecond transient absorption measurements showed, for both molecules, charge-separated states in solution, but only short-lived singlets in thin films, with no evidence of twisted or charge-separated intermediates. This suppression of excited-state dynamics reflects the strong intermolecular interactions in the solid state and limits their singlet fission potential, highlighting key design challenges for implementing diradicaloids in solid-state optoelectronic and photovoltaic devices.
{"title":"From Solution to Thin Films: Unravelling Excited-State Behaviour in Halogenated Diradicaloids","authors":"Matteo Bevilacqua, Luca Ciuffarin, Roberto Costantini, Luca Schio, Albano Cossaro, Pasquale Orgiani, Federico Cilento, Claudia Graiff, Cristina Tubaro, Marco Baron, Martina Dell'Angela","doi":"10.1039/d5cc05557a","DOIUrl":"https://doi.org/10.1039/d5cc05557a","url":null,"abstract":"Stable fluorine and chlorine decorated Thiele-like diradicaloids were synthetized and studied in solution and in thin films. Femtosecond transient absorption measurements showed, for both molecules, charge-separated states in solution, but only short-lived singlets in thin films, with no evidence of twisted or charge-separated intermediates. This suppression of excited-state dynamics reflects the strong intermolecular interactions in the solid state and limits their singlet fission potential, highlighting key design challenges for implementing diradicaloids in solid-state optoelectronic and photovoltaic devices.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"220 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146101845","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}
Andrea Nitti, Elisavet Tatsi, Enrico Magnani, Giuseppe Mattioli, Francesco Porcelli, Chiara Botta, Gianmarco Griffini, Dario Pasini
We report on a series of novel π-conjugated organic emitters based on cores possessing different degrees of fluorination flanked by two naphthothiophene units, obtained through a chemically sustainable synthetic approach. The luminophores exhibit aggregation-induced emission (AIE) behavior, good compatibility, homogeneous distribution, and excellent photostability in thin-film LSCs based on a PMMA matrix. It was found that by increasing the degree of fluorination in the core the overall efficiency is preserved, while the photostability, which is extremely important in the context of application in energy efficient buildings, is substantially enhanced.
{"title":"Scalable AIE Emitters for Luminescent Solar Concentrators: the Role of Fluorination","authors":"Andrea Nitti, Elisavet Tatsi, Enrico Magnani, Giuseppe Mattioli, Francesco Porcelli, Chiara Botta, Gianmarco Griffini, Dario Pasini","doi":"10.1039/d5cc06951c","DOIUrl":"https://doi.org/10.1039/d5cc06951c","url":null,"abstract":"We report on a series of novel π-conjugated organic emitters based on cores possessing different degrees of fluorination flanked by two naphthothiophene units, obtained through a chemically sustainable synthetic approach. The luminophores exhibit aggregation-induced emission (AIE) behavior, good compatibility, homogeneous distribution, and excellent photostability in thin-film LSCs based on a PMMA matrix. It was found that by increasing the degree of fluorination in the core the overall efficiency is preserved, while the photostability, which is extremely important in the context of application in energy efficient buildings, is substantially enhanced.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"94 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146101842","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}
Ying Huang, Suping Chen, Tao Yang, Xijun Xu, Fangkun Li, Jujun Yuan, Sihuan Tang, Yanping Huo, Jun Liu
A covalent triazine framework (CTF) was synthesized via a typical solution synthesis route and applied as an anode for sodium-ion batteries (SIBs). The extended conjugate structure of CTF not only endows structural stability and limited solubility but also improves electronic conductivity and offers numerous active sites. Meanwhile, the CTF displays a Na + storage capacity of 82.6 mAh g -1 after 9000 cycles at 2.0 A g -1 , indicating a superior long-cycling stability. Na3V2(PO4)3//CTF full cell demonstrates a capacity of 57.6 mAh g -1 after 1500 cycles at 1.0 A g -1 .
采用典型的溶液合成方法合成了共价三嗪骨架（CTF），并将其用作钠离子电池（sib）的阳极。CTF的扩展共轭结构不仅具有结构稳定性和有限溶解度，而且提高了电子导电性，并提供了许多活性位点。同时，CTF在2.0 ag -1下循环9000次后的Na +存储容量为82.6 mAh g -1，显示出优异的长周期稳定性。Na3V2(PO4)3//CTF充满电池在1.0 a g -1下循环1500次后的容量为57.6 mAh g -1。
{"title":"Facile construction of covalent triazine framework as anode for ultra-long cycle life sodium-ion batteries","authors":"Ying Huang, Suping Chen, Tao Yang, Xijun Xu, Fangkun Li, Jujun Yuan, Sihuan Tang, Yanping Huo, Jun Liu","doi":"10.1039/d5cc07128c","DOIUrl":"https://doi.org/10.1039/d5cc07128c","url":null,"abstract":"A covalent triazine framework (CTF) was synthesized via a typical solution synthesis route and applied as an anode for sodium-ion batteries (SIBs). The extended conjugate structure of CTF not only endows structural stability and limited solubility but also improves electronic conductivity and offers numerous active sites. Meanwhile, the CTF displays a Na + storage capacity of 82.6 mAh g -1 after 9000 cycles at 2.0 A g -1 , indicating a superior long-cycling stability. Na3V2(PO4)3//CTF full cell demonstrates a capacity of 57.6 mAh g -1 after 1500 cycles at 1.0 A g -1 .","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"90 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146101846","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}
A multifunctional cationic electrolyte additive-Li+ was incorporated into the Zn||V-MOF battery, which could enhance the electrolyte’s ionic conductivity and accelerate Zn2+ diffusion rate, facilitate reversible de-intercalation into the V-MOF cathode, suppress zinc dendrite formation, thereby improving the battery's electrochemical performance significantly.
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