RSC Mechanochemistry最新文献

{"title":"Moving mechanochemistry forward: programming force-induced responses into macromolecular systems","authors":"Kerstin G. Blank and Robert Göstl","doi":"10.1039/D5MR90024G","DOIUrl":"https://doi.org/10.1039/D5MR90024G","url":null,"abstract":"<p >A graphical abstract is available for this content</p>","PeriodicalId":101140,"journal":{"name":"RSC Mechanochemistry","volume":" 5","pages":" 627-630"},"PeriodicalIF":0.0,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/mr/d5mr90024g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144929124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Atroposelective organocatalytic synthesis of 1,2′-binaphthalene-3′-carbaldehydes under mechanochemical conditions","authors":"Henrich Szabados and Radovan Šebesta","doi":"10.1039/D5MR00058K","DOIUrl":"https://doi.org/10.1039/D5MR00058K","url":null,"abstract":"<p >Ball-milling allowed the efficient realization of asymmetric organocatalytic Michael/aldol cascade, which affords 1′,2′-dihydro-1,2′-binaphthalene derivatives. These compounds were transformed into axially chiral 1,2′-binaphthalene-3′-carbaldehydes under mechanochemical conditions. Evaluation of milling parameters such as frequency or liquid-assisting agents led to optimum reaction conditions, which afforded products in high yields, and short times while preserving high enantiomeric purity.</p>","PeriodicalId":101140,"journal":{"name":"RSC Mechanochemistry","volume":" 6","pages":" 846-852"},"PeriodicalIF":0.0,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/mr/d5mr00058k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145374768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanochemical one-pot synthesis and solid-state transformation of cobalt(ii) Schiff base complexes: a green route to tailored coordination architecture","authors":"Hongguang Chen, Zhenwei Guo, Daming Feng, Xudong Jin and Fang Guo","doi":"10.1039/D5MR00057B","DOIUrl":"https://doi.org/10.1039/D5MR00057B","url":null,"abstract":"<p >Schiff base complexes, traditionally synthesized <em>via</em> time-consuming, solvent-intensive solution methods, are pivotal in coordination chemistry but face limitations in accessing diverse architecture and sustainable scalability. Mechanochemistry has emerged as a solvent-free alternative, yet its potential to drive multicomponent reactions with precise control over metal–ligand coordination modes remains underexplored. Herein, we propose a mechanochemical one-pot synthesis strategy that synergistically integrates condensation, metal coordination, and deprotonation–dehalogenation reactions to fabricate Schiff base Co(<small>II</small>) complexes. Utilizing adamantylamine, 5-halosalicylaldehyde, and CoCl<small>₂</small>·6H<small>₂</small>O as precursors, mechanical forces drive the self-ordering of building blocks, enabling ultrahigh selective coordination and complex chemical processes. The approach efficiently yielded 12 Co(<small>II</small>) complexes, including the κ<small>¹</small>-<em>O</em>-monodentate <strong>CoCl<small>₂</small>(HL)<small>₂</small></strong> and κ<small>²</small>-<em>O</em>, <em>N</em>-bidentate <strong>CoL<small>₂</small></strong>, which are typically challenging to access <em>via</em> conventional solution methods. Remarkably, the reactions achieved full conversion within 10 minutes, underscoring the rapidity and sustainability of mechanochemistry. Mechanical activation unlocked dormant reactivity in reactants, facilitating pathways otherwise inaccessible in solution. Furthermore, reversible solid-state transformations between complexes were demonstrated through dehydrohalogenation–hydrohalogenation processes. Specifically, <strong>CoCl<small>₂</small>(HL)<small>₂</small></strong> is converted to <strong>CoL<small>₂</small></strong><em>via</em> cleavage of N–H and Co–Cl bonds and subsequent Co–N bond formation, while <strong>CoL<small>₂</small></strong> reverts upon HCl absorption during grinding. This work highlights the utility of mechanochemistry in simplifying synthetic procedures, enhancing reaction complexity, and enabling green, solvent-free syntheses. By elucidating pathways for one-pot synthesis and solid-state transformations, it establishes mechanochemistry as a versatile and sustainable route for designing advanced coordination complexes with tailored architecture.</p>","PeriodicalId":101140,"journal":{"name":"RSC Mechanochemistry","volume":" 6","pages":" 853-863"},"PeriodicalIF":0.0,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/mr/d5mr00057b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145374769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanochemistry-driven solvent-free synthesis of biologically relevant diversely substituted 2-amino-1,4-naphthoquinones","authors":"Koushik Pal, Pintu Karmakar and Goutam Brahmachari","doi":"10.1039/D5MR00068H","DOIUrl":"https://doi.org/10.1039/D5MR00068H","url":null,"abstract":"<p >We, herein, present a practical and straightforward alternative mechanochemistry-driven strategy for the regioselective amination of biologically promising 1,4-naphthoquinone scaffolds to access functionalised 2-amino-1,4-naphthoquinones under additive- and solvent-free conditions. The notable features of the present method are solvent-free synthesis, avoidance of any additive and heating, broad substrate scope, good yields, shorter reaction times (in minutes), reusability of the solid surface, gram-scale synthesis, a clean reaction profile, and operational simplicity. In addition, a series of new selenylated derivatives of some selected 2-amino-1,4-naphthoquinones were prepared as part of an extended synthetic application.</p>","PeriodicalId":101140,"journal":{"name":"RSC Mechanochemistry","volume":" 6","pages":" 833-845"},"PeriodicalIF":0.0,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/mr/d5mr00068h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145374767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Iron–water mediated chemoselective reduction of nitroarenes in a ball mill: a highly efficient and sustainable approach","authors":"Vir Bahadur, Amol S. Dehade, Dharmendra Das, Prashantha Kamath, Sitaram Pal, Bhanu Manjunath and Partha P. Mukhopadhyay","doi":"10.1039/D5MR00055F","DOIUrl":"https://doi.org/10.1039/D5MR00055F","url":null,"abstract":"<p >Highly selective and efficient reduction of nitroarenes has been achieved using iron powder and water under mechanochemical conditions. A wide spectrum of reducible functionalities remained inert under these sustainable and green reaction conditions. During the reaction, Fe powder partially converted into valuable Fe<small>₃</small>O<small>₄</small> nanoparticles.</p>","PeriodicalId":101140,"journal":{"name":"RSC Mechanochemistry","volume":" 6","pages":" 802-808"},"PeriodicalIF":0.0,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/mr/d5mr00055f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145374763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Force governs product diversity in the mechanochemical reactivity of triprismane†","authors":"Ankita Das, Chandralekha Hajra and Ayan Datta","doi":"10.1039/D5MR00050E","DOIUrl":"https://doi.org/10.1039/D5MR00050E","url":null,"abstract":"<p >Unlike conventional modes of activation of reactivity, mechanochemical force provides facile and unique pathways. Extensive studies have been performed on the thermal and photochemical interconversions between benzene and its valence isomers. In this article, we show that mechanochemical pulling along 1,2- positions of triprismane (<strong>TP</strong>) can precisely control the outcome, namely, benzene (<strong>BZ</strong>) and/or Dewar benzene (<strong>DB</strong>), depending upon the strength of external force. Within the force range of 1.5–1.9 nN, <strong>DB</strong> is formed exclusively, whereas at forces exceeding ≥2.0 nN, <strong>BZ</strong> becomes the major product. Also, we report that on pulling across 1,4-sites of <strong>TP</strong>, <strong>BZ</strong> is produced exclusively when external force ≥1.8 nN. <em>Ab initio</em> steered molecular dynamics (AISMD) simulations on the force modified potential energy surfaces (FMPESs) for 1,2-pulling of <strong>TP</strong> reveal that <strong>DB</strong> becomes the minor product beyond external force ≥2.0 nN. The thermodynamically controlled product, <strong>BZ,</strong> is obtained as the major and sole product for stronger 1,2-pulling and 1,4-pulling respectively. The constrained geometries simulate external force (CoGEF) calculations fail to locate the kinetically trapped intermediate, <strong>DB,</strong> revealing the prowess of AISMD in revealing unique intermediates and fleetingly stable products in the course of mechanochemical reactions. Also, we demonstrate that the <strong>TP</strong> → <strong>BZ</strong> reaction, which demands significant thermal energy, can be induced mechanochemically.</p>","PeriodicalId":101140,"journal":{"name":"RSC Mechanochemistry","volume":" 6","pages":" 826-832"},"PeriodicalIF":0.0,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/mr/d5mr00050e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145374766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photoluminescence evolution of functional silicon quantum dots assembled via a sustainable mechanochemical process†","authors":"Yuping Xu, Yunzi Xin and Takashi Shirai","doi":"10.1039/D5MR00054H","DOIUrl":"https://doi.org/10.1039/D5MR00054H","url":null,"abstract":"<p >In the present work, we report a sustainable, room-temperature mechanochemical approach for synthesizing functional silicon quantum dots (Si QDs) with tunable photoluminescence (PL) in the visible range. Using hydrogen silsesquioxane as a precursor, precise control over the size and surface chemical state of Si QDs is achieved through controlled ball-milling and subsequent chemical etching and hydrosilylation. Discrete element method simulations reveal that the cumulative supra-critical impact energy (<em>E</em><small>_sup</small>), defined as the total impact energy exceeding a critical threshold (<em>e</em><small>_crit</small>) required for chemical activation, plays a dominant role in driving the formation of Si radicals and Si–H bond cleavage, which are key steps in crystallite growth. Under high-energy milling conditions using larger balls, a significant portion of collisions exceed <em>e</em><small>_crit</small>, thereby enhancing the efficiency of solid-state chemical reactions and leading to the formation of larger Si QDs. The PL red shift observed across blue-, green-, and red-emitting Si QDs is attributed to a size–surface coupling mechanism. For smaller Si QDs, PL originates from quantum-confined band-edge transitions and shallow surface states, enabled by high alkyl chain coverage. Larger Si QDs exhibit red-shifted, excitation-independent emission dominated by deep oxide-related surface states, stemming from enhanced oxidation and reduced organic passivation. These findings highlight the interplay between mechanical energy input, structural/size evolution, and surface chemistry in tailoring the optical properties of Si QDs.</p>","PeriodicalId":101140,"journal":{"name":"RSC Mechanochemistry","volume":" 5","pages":" 641-652"},"PeriodicalIF":0.0,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/mr/d5mr00054h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144929133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanochromic polymer particles crosslinked by a radical-type mechanochromophore†","authors":"Kengo Ogasawara, Daisuke Kuromiya, Takuma Watabe, Akira Takahashi, Daisuke Aoki and Hideyuki Otsuka","doi":"10.1039/D5MR00071H","DOIUrl":"https://doi.org/10.1039/D5MR00071H","url":null,"abstract":"<p >The mechanochromic properties of polymer particles crosslinked by difluorenylsuccinonitrile (DFSN), a radical-type mechanochromophore, are reported in relation to particle size and glass transition temperature. DFSN-crosslinked nanoparticles and microparticles were prepared <em>via</em> emulsion polymerization and suspension polymerization of vinyl monomers, respectively, using a DFSN-containing crosslinker. Mechanical grinding of the prepared white particles induced a pink coloration, originating from cyanofluorenyl (CF) radicals generated by the mechanically induced homolysis of DFSN units within the particles. The mechanochemical response of the particles was evaluated using scanning electron microscopy and electron paramagnetic resonance spectroscopy, revealing that microparticles exhibited a stronger response than nanoparticles due to the differences in pulverization behavior. The mechanochemical response also showed a strong correlation with the glass transition temperatures of the particles, highlighting the importance of polymer chain mobility in the mechanochromic properties of the developed polymer particles.</p>","PeriodicalId":101140,"journal":{"name":"RSC Mechanochemistry","volume":" 5","pages":" 763-769"},"PeriodicalIF":0.0,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/mr/d5mr00071h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144929204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction: Mechanochemical kilogram-scale synthesis of rac-ibuprofen:nicotinamide co-crystals using a drum mill","authors":"Jan-Hendrik Schöbel, Frederik Winkelmann, Joel Bicker and Michael Felderhoff","doi":"10.1039/D5MR90023A","DOIUrl":"https://doi.org/10.1039/D5MR90023A","url":null,"abstract":"<p >Correction for ‘Mechanochemical kilogram-scale synthesis of <em>rac</em>-ibuprofen:nicotinamide co-crystals using a drum mill’ by Jan-Hendrik Schöbel <em>et al.</em>, <em>RSC Mechanochem.</em>, 2025, <strong>2</strong>, 224–229, https://doi.org/10.1039/D4MR00096J.</p>","PeriodicalId":101140,"journal":{"name":"RSC Mechanochemistry","volume":" 5","pages":" 772-772"},"PeriodicalIF":0.0,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/mr/d5mr90023a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144929125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction: Utilizing an attritor mill for solvent-free mechanochemical synthesis of rac-ibuprofen:nicotinamide co-crystals","authors":"Sarah Triller, Frederik Winkelmann, Jan-Hendrik Schöbel and Michael Felderhoff","doi":"10.1039/D5MR90022K","DOIUrl":"https://doi.org/10.1039/D5MR90022K","url":null,"abstract":"<p >Correction for ‘Utilizing an attritor mill for solvent-free mechanochemical synthesis of <em>rac</em>-ibuprofen:nicotinamide co-crystals’ by Sarah Triller <em>et al.</em>, <em>RSC Mechanochem.</em>, 2025, <strong>2</strong>, 538–543, https://doi.org/10.1039/D5MR00020C.</p>","PeriodicalId":101140,"journal":{"name":"RSC Mechanochemistry","volume":" 5","pages":" 771-771"},"PeriodicalIF":0.0,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/mr/d5mr90022k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144929127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}