CCS Chemistry最新文献

{"title":"Dual-Mode Reversible Imaging of the Hypoxia Status of Acute and Chronic Hepatic Injury","authors":"","doi":"10.31635/ccschem.024.202404092","DOIUrl":"https://doi.org/10.31635/ccschem.024.202404092","url":null,"abstract":"CCS Chemistry, Ahead of Print.<br/>","PeriodicalId":9810,"journal":{"name":"CCS Chemistry","volume":"28 1","pages":""},"PeriodicalIF":11.2,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141182669","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":"Poly(N-Heterocyclic Carbene)-Derived Organometallic Cylinders and Barrels","authors":"","doi":"10.31635/ccschem.024.202404269","DOIUrl":"https://doi.org/10.31635/ccschem.024.202404269","url":null,"abstract":"CCS Chemistry, Ahead of Print.<br/>","PeriodicalId":9810,"journal":{"name":"CCS Chemistry","volume":"213 1","pages":""},"PeriodicalIF":11.2,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141092016","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":"The Porous Nanocarbons with Polynuclear Aromatic Cores","authors":"","doi":"10.31635/ccschem.024.202403889","DOIUrl":"https://doi.org/10.31635/ccschem.024.202403889","url":null,"abstract":"CCS Chemistry, Ahead of Print.<br/>","PeriodicalId":9810,"journal":{"name":"CCS Chemistry","volume":"32 1","pages":""},"PeriodicalIF":11.2,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141079322","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":"π-Fused Diazocines with Controllable Photoswitching Properties as Molecular Tweezers","authors":"","doi":"10.31635/ccschem.024.202404227","DOIUrl":"https://doi.org/10.31635/ccschem.024.202404227","url":null,"abstract":"CCS Chemistry, Ahead of Print.<br/>","PeriodicalId":9810,"journal":{"name":"CCS Chemistry","volume":"32 1","pages":""},"PeriodicalIF":11.2,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141079321","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":"Investigating the Catalytic Impact of Iron-Based Metal–Organic Framework Templates on the CO2-Derived Fischer–Tropsch Synthesis Process","authors":"","doi":"10.31635/ccschem.024.202404148","DOIUrl":"https://doi.org/10.31635/ccschem.024.202404148","url":null,"abstract":"CCS Chemistry, Ahead of Print.<br/>","PeriodicalId":9810,"journal":{"name":"CCS Chemistry","volume":"10 1","pages":""},"PeriodicalIF":11.2,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140925033","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":"Author Spotlight","authors":"","doi":"10.31635/ccschem.024.202400423ed2","DOIUrl":"https://doi.org/10.31635/ccschem.024.202400423ed2","url":null,"abstract":"CCS Chemistry, Volume 6, Issue 5, Page 1089-1091, May 2024.<br/>","PeriodicalId":9810,"journal":{"name":"CCS Chemistry","volume":"11 1","pages":""},"PeriodicalIF":11.2,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140821096","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":"A Tetracationic Cyclophane","authors":"Yiming Zhang, Yang Liu, Yuyang Wu, Chenqi Ge, Bingda Li, Yuxi Wei, Yongwei Qian, Qing Li, Feihe Huang, Hao Li","doi":"10.31635/ccschem.024.202404345","DOIUrl":"https://doi.org/10.31635/ccschem.024.202404345","url":null,"abstract":"A tetracationic macrocycle namely &lt;b xmlns:bkstg=\"http://www.atypon.com/backstage-ns\" xmlns:fn=\"http://www.w3.org/2005/xpath-functions\" xmlns:pxje=\"java:com.atypon.frontend.services.impl.PassportXslJavaExtentions\" xmlns:urlutil=\"java:com.atypon.literatum.customization.UrlUtil\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"&gt;\u0000&lt;bold&gt;ExBluebox&lt;/bold&gt;&lt;/b&gt;&lt;sup&gt;4+&lt;/sup&gt; bearing two N-phenylene-bipyridinium units that are bridged in a face-to-face manner by two rigid linkers was synthesized by using an electron rich template. Compared to the so-called “&lt;b xmlns:bkstg=\"http://www.atypon.com/backstage-ns\" xmlns:fn=\"http://www.w3.org/2005/xpath-functions\" xmlns:pxje=\"java:com.atypon.frontend.services.impl.PassportXslJavaExtentions\" xmlns:urlutil=\"java:com.atypon.literatum.customization.UrlUtil\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"&gt;\u0000&lt;bold&gt;Bluebox&lt;/bold&gt;&lt;/b&gt;&lt;sup&gt;4+&lt;/sup&gt;” first invented by Stoddart, &lt;b xmlns:bkstg=\"http://www.atypon.com/backstage-ns\" xmlns:fn=\"http://www.w3.org/2005/xpath-functions\" xmlns:pxje=\"java:com.atypon.frontend.services.impl.PassportXslJavaExtentions\" xmlns:urlutil=\"java:com.atypon.literatum.customization.UrlUtil\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"&gt;\u0000&lt;bold&gt;ExBluebox&lt;/bold&gt;&lt;/b&gt;&lt;sup&gt;4+&lt;/sup&gt; reported here has an extended cavity, allowing the recognition of guests whose sizes exceed the inner cavity of &lt;b xmlns:bkstg=\"http://www.atypon.com/backstage-ns\" xmlns:fn=\"http://www.w3.org/2005/xpath-functions\" xmlns:pxje=\"java:com.atypon.frontend.services.impl.PassportXslJavaExtentions\" xmlns:urlutil=\"java:com.atypon.literatum.customization.UrlUtil\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"&gt;\u0000&lt;bold&gt;Bluebox&lt;/bold&gt;&lt;/b&gt;&lt;sup&gt;4+&lt;/sup&gt;. In comparison with the so-called “&lt;b xmlns:bkstg=\"http://www.atypon.com/backstage-ns\" xmlns:fn=\"http://www.w3.org/2005/xpath-functions\" xmlns:pxje=\"java:com.atypon.frontend.services.impl.PassportXslJavaExtentions\" xmlns:urlutil=\"java:com.atypon.literatum.customization.UrlUtil\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"&gt;\u0000&lt;bold&gt;Exbox&lt;/bold&gt;&lt;/b&gt;&lt;sup&gt;4+&lt;/sup&gt;” in which two pyridinium units are separated by a phenylene linker, the viologen dications in &lt;b xmlns:bkstg=\"http://www.atypon.com/backstage-ns\" xmlns:fn=\"http://www.w3.org/2005/xpath-functions\" xmlns:pxje=\"java:com.atypon.frontend.services.impl.PassportXslJavaExtentions\" xmlns:urlutil=\"java:com.atypon.literatum.customization.UrlUtil\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"&gt;\u0000&lt;bold&gt;ExBluebox&lt;/bold&gt;&lt;/b&gt;&lt;sup&gt;4+&lt;/sup&gt; remain intact. &lt;b xmlns:bkstg=\"http://www.atypon.com/backstage-ns\" xmlns:fn=\"http://www.w3.org/2005/xpath-functions\" xmlns:pxje=\"java:com.atypon.frontend.services.impl.PassportXslJavaExtentions\" xmlns:urlutil=\"java:com.atypon.literatum.customization.UrlUtil\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"&gt;\u0000&lt;bold&gt;ExBluebox&lt;/bold&gt;&lt;/b&gt;&lt;sup&gt;4+&lt;/sup&gt; demonstrates capabilities of recognizing various aromatic guests in both water and organic solvent such as MeCN. By taking advantage of the difference in binding affinities, the macrocycle dissolved in water ","PeriodicalId":9810,"journal":{"name":"CCS Chemistry","volume":"1 1","pages":""},"PeriodicalIF":11.2,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140821608","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":"Steric control over inter-ligand dihedrals and splay leads to the formation of FeII6L6 and FeII8L8 antiprisms","authors":"Yuchong Yang, Yuyin Du, Tanya K. Ronson, Jonathan R. Nitschke","doi":"10.31635/ccschem.024.202404281","DOIUrl":"https://doi.org/10.31635/ccschem.024.202404281","url":null,"abstract":"Macrocycles have found uses in guest capture, sensing and porous materials, motivating the development of new methods for their synthesis. Here we report the construction of two types of barrel-shaped macrocyclic assemblies, with trigonal antiprismatic Fe^II₆L₆ and square antiprismatic Fe^II₈L₈ architectures, from Fe^II and boron-containing tritopic ligands. Two factors, the steric hindrance of ligands and the preferred coordination angles at different vertices, were observed to regulate the dihedral angles between adjacent ligands, leading to the formation of the structures observed. The effects of ligand steric hindrance led to the formation of a Fe^II₆L₆ trigonal antiprism, which efficiently encapsulated persistent environmental pollutant perfluorosulfonate anions. In contrast with the iminopyridine chelating groups of the Fe^II₆L₆ structure, the incorporation of azopyridine moieties coordinated to the Fe^II centres not only increased the vertex opening angle, resulting in the construction of a Fe^II₈L₈ square antiprism, but also enabled the redox-driven reversible disassembly of this structure. The design strategies that have enabled the construction of these antiprismatic macrocycles may provide insight into the design principles governing the formation of more complex functional assemblies.\u0000<figure><img alt=\"\" data-lg-src=\"/cms/asset/c14fdcda-d303-4e80-bd7f-cf2d2c1744b4/keyimage.jpg\" data-src=\"/cms/asset/a25238e4-e4eb-4f88-b7fe-13e15064152a/keyimage.jpg\" src=\"/specs/ux3/releasedAssets/images/loader-7e60691fbe777356dc81ff6d223a82a6.gif\"/><ul>\u0000<li>Download figure</li>\u0000<li>Download PowerPoint</li>\u0000</ul>\u0000</figure>","PeriodicalId":9810,"journal":{"name":"CCS Chemistry","volume":"48 1","pages":""},"PeriodicalIF":11.2,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140887948","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":"High-Intensity Focused Ultrasound-Induced Disulfide Mechanophore Activation in Polymeric Nanostructures for Molecule Release","authors":"Jilin Fan, Kuan Zhang, Mingjun Xuan, Xiang Gao, Rostislav Vinokur, Robert Göstl, Lifei Zheng, Andreas Herrmann","doi":"10.31635/ccschem.024.202403876","DOIUrl":"https://doi.org/10.31635/ccschem.024.202403876","url":null,"abstract":"<p>Ultrasound (US) activation of mechanophores in polymers that initiates cascade chemical reactions is a promising strategy for on-demand molecule release. However, the typical US frequency used for mechanochemistry is around 20 kHz, producing inertial cavitation that exceeds the tolerance threshold of biological systems. Here, high-intensity focused US (HIFU) as a mechanical stimulus is introduced to drive the activation of disulfide mechanophores in hyperbranched star polymers (HBSPs) and microgels (MGLs). The mechanism of molecular release is attributed to the thiol-disulfide exchange reaction and subsequent intramolecular cyclization. We reveal that HBSPs and MGLs effectively transduce HIFU as mechanical input to chemical output, demonstrated by the quantification of the release of fluorescent umbelliferone (UMB). Moreover, an in vitro study of drug release is carried out using camptothecin as the model drug, which is covalently loaded in MGLs, demonstrating the potential of our system for controlled drug delivery to cancer cells.</p>","PeriodicalId":9810,"journal":{"name":"CCS Chemistry","volume":"14 1","pages":""},"PeriodicalIF":11.2,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140837197","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":"Accelerated and controlled polymerization of N-carboxyanhydrides assisted by acids","authors":"Xingliang Liu, Jing Huang, Jiaqi Wang, Haonan Sheng, Zhen Yuan, Wanying Wang, Wenbin Li, Ziyuan Song, Jianjun Cheng","doi":"10.31635/ccschem.024.202403954","DOIUrl":"https://doi.org/10.31635/ccschem.024.202403954","url":null,"abstract":"It has been widely accepted that acidic species, such as HCl, inhibit the polymerization process of <i>N</i>-carboxyanhydrides (NCAs), which have to be removed to guarantee the successful synthesis of polypeptides. Herein, we showed that the impact of organic acids on NCA polymerization was dependent on their pKa values in dichloromethane. While stronger acids like trifluoroacetic acids completely blocked the chain propagation as expected, weaker acids such as acetic acids accelerated the polymerization rate instead. The addition of acids not only protonated the propagating amino groups but also activated NCA monomers, whose balance determined the accelerating or inhibitory effect. Additionally, the acid-assisted polymerization exhibited one-stage kinetics that differed from conventional cooperative covalent polymerizations, resulting in excellent control over molecular weights even with an accelerating rate. The pKa-dependence inspired us to turn the inhibitory acids into accelerating acids on demand, promoting the controlled polymerization from non-purified NCA monomers. This work highlights the possibility to change the conventional understanding of an activator /inhibitor by altering reaction conditions, which not only sheds light on the design of new accelerating strategy, but also offers a practical strategy to prepare polypeptide materials in an efficient and controlled manner.\u0000<figure><img alt=\"\" data-lg-src=\"/cms/asset/15caeb88-62e5-48bd-8675-a3267b643c82/keyimage.jpg\" data-src=\"/cms/asset/dfec418b-12d4-42f1-9b39-0530976ebf8d/keyimage.jpg\" src=\"/specs/ux3/releasedAssets/images/loader-7e60691fbe777356dc81ff6d223a82a6.gif\"/><ul>\u0000<li>Download figure</li>\u0000<li>Download PowerPoint</li>\u0000</ul>\u0000</figure>","PeriodicalId":9810,"journal":{"name":"CCS Chemistry","volume":"53 1","pages":""},"PeriodicalIF":11.2,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140651307","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}