ChemPlusChem最新文献_第9页

Coordination Chemistry and Reactivity of a Lewis Acidic Di‐Zinc Framework Supported by Bisphenoxymethanone Ligands 以双苯氧甲酮配体为支撑的路易斯酸性二锌框架的配位化学与反应活性

IF 3.4 4区化学

ChemPlusChem Pub Date : 2024-09-10 DOI: 10.1002/cplu.202400382

Ding-Hong Wu, Xin-Jie Lin, Wachara Benchaphanthawee, Yen-Hua Lee, Zih-Chen Lin, Han-Jung Li, Pei-Lin Chen, Ting-Shen Kuo, Chien-Lung Wang, Yen-Ku Wu, Chi-How Peng, Hsueh-Ju Liu

引用次数: 0

Cyclic Oxothiomolybdates: Building Blocks for Cyclodextrin-Based Open Frameworks. 环状硫代钼酸盐：环糊精基开放式框架的基石。

IF 3 4区化学

ChemPlusChem Pub Date : 2024-09-09 DOI: 10.1002/cplu.202400475

Maxence Lion, Jérôme Marrot, William Shepard, Nathalie Leclerc, Mohamed Haouas, Emmanuel Cadot, Clément Falaise

{"title":"Cyclic Oxothiomolybdates: Building Blocks for Cyclodextrin-Based Open Frameworks.","authors":"Maxence Lion, Jérôme Marrot, William Shepard, Nathalie Leclerc, Mohamed Haouas, Emmanuel Cadot, Clément Falaise","doi":"10.1002/cplu.202400475","DOIUrl":"10.1002/cplu.202400475","url":null,"abstract":"Desolvation processes, though common in self-assembled biological structures, are rarely evidenced and utilized in the design of crystalline architectures. In this study, we introduce a novel approach using the [Mo8S8O8(OH)8(guest)]2- complex, formed by the self-condensation of four [MoV 2O2S2]2- fragments around a guest unit (MoVIO6H4 or oxalate), as a chaotropic scaffold for crystallizing hybrid organic-inorganic systems with natural cyclodextrins. Our findings reveal that β-cyclodextrin (β-CD) facilitates the formation of host-guest complexes, while α-cyclodextrin (α-CD) induces the formation of a Kagome-type structure with significant voids. These new compounds were thoroughly characterized using X-ray diffraction (both powder and single-crystal), N2 adsorption, elemental and thermogravimetric analysis. Additionally, solution studies using 1H NMR titration and small-angle X-ray scattering (SAXS) demonstrated pre-association of the building units in solution. These results enhance our understanding of the design principles for supramolecular structures composed of inorganic polyanions and cyclodextrins.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202400475"},"PeriodicalIF":3.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142152696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Post‐Synthetic Modification of a 1D Mixed‐Linker Zn(II) Coordination Polymer for Acid‐Catalyzed Alcoholysis of Epoxides 用于酸催化环氧化物烷氧基化的 1D 混合连接剂 Zn(II) 配位聚合物的后合成改性

IF 3.4 4区化学

ChemPlusChem Pub Date : 2024-09-09 DOI: 10.1002/cplu.202400400

Mahnaz Najafi, Jan Janczak

{"title":"Post‐Synthetic Modification of a 1D Mixed‐Linker Zn(II) Coordination Polymer for Acid‐Catalyzed Alcoholysis of Epoxides","authors":"Mahnaz Najafi, Jan Janczak","doi":"10.1002/cplu.202400400","DOIUrl":"https://doi.org/10.1002/cplu.202400400","url":null,"abstract":"Rational design of heterogeneous acid catalysts possessing uniform dispersion of active sites plays a significant role in the catalytic performance. In the present work, a coordination polymer, [Zn(4,4´‐bpy)(µ‐Hbtc)(H2O)]∙2H2O (Zn‐CP), was solvothermally synthesized using 4,4´‐bpy (= 4,4´‐bipyridine) and H3btc (= 1,3,5‐benzenetricarboxylic acid) mixed linkers. Single crystal X‐ray analysis of the polymer displayed that Zn‐CP chains were decorated with 4,4´‐bpy having unidentate coordination fashion. Then, the free N atom of the linker in Zn‐CP was functionalized by ‐SO3H groups to afford Zn‐CP‐SO3H with enhanced acidity. The structures were characterized by FT‐IR, thermogravimetric analysis, powder X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS), temperature programmed desorption of NH3 (NH3‐TPD), and field emission scanning electron microscopy (FE‐SEM) analyses. The coordination polymer was employed as heterogeneous catalyst for alcoholysis of epoxides under room conditions. The Zn‐CP‐SO3H exhibited excellent catalytic activity and regioselectivity in the methanolysis of styrene oxide within short reaction time.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":"249 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142207309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient Photocatalytic Oxidative Coupling of Amines under Visible Light Using a Trioporphyrins-Based Covalent Triazine Framework. 利用基于三卟啉的共价三嗪框架在可见光下高效光催化氧化偶联胺。

IF 3 4区化学

ChemPlusChem Pub Date : 2024-09-08 DOI: 10.1002/cplu.202400460

Xiao-Hui Liu, Xiao-Xuan Guo, Shuo-Yun Zheng, Xian-Tai Zhou

引用次数: 0

Valorization of Protein Materials Through Mechanochemistry and Self-Assembly. 通过机械化学和自组装实现蛋白质材料的价值。

IF 3 4区化学

ChemPlusChem Pub Date : 2024-09-06 DOI: 10.1002/cplu.202400512

Lei Wang, Niclas Solin

{"title":"Valorization of Protein Materials Through Mechanochemistry and Self-Assembly.","authors":"Lei Wang, Niclas Solin","doi":"10.1002/cplu.202400512","DOIUrl":"10.1002/cplu.202400512","url":null,"abstract":"The concept of combining mixing of solids by milling (a type of mechanochemistry) with aqueous self-assembly provides interesting possibilities for energy efficient production of advanced nanomaterials. Many proteins are outstanding building blocks for self-assembly, a prominent example being the conversion of proteins into protein nanofibrils (PNFs) - a structure related to amyloid fibrils. PNFs have attractive mechanical properties and have a tendency to form ordered materials. They are accordingly of interest as materials for bioplastics and potentially also for more high-tech applications. In this concept article we highlight our effort on valorization of such proteins with hydrophobic organic compounds such an organic dyes and drug molecules, by developing scalable methodology combining mechanochemistry and self-assembly. Compared to more established methodology, mechanochemical methodology is a valuable complement as it allows potential scalable production of hybrids between e. g. proteins and highly hydrophobic compounds - a class of hybrid material that is difficult to access by other means. This may allow for development of sustainable processes for fabrication of advanced protein-based materials derivable from renewable source materials.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202400512"},"PeriodicalIF":3.0,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142138767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Organic Chimeras based on Selenosugars, Steroids, and Fullerenes as Potential Inhibitors of the β-amyloid Peptide Aggregation. 基于硒糖、类固醇和富勒烯的有机嵌合体作为β淀粉样肽聚合的潜在抑制剂。

IF 3 4区化学

ChemPlusChem Pub Date : 2024-09-05 DOI: 10.1002/cplu.202400404

Reinier Lemos, Yoana Pérez-Badell, Mauro De Nisco, Andrea Carpentieri, Margarita Suárez, Silvana Pedatella

{"title":"Organic Chimeras based on Selenosugars, Steroids, and Fullerenes as Potential Inhibitors of the β-amyloid Peptide Aggregation.","authors":"Reinier Lemos, Yoana Pérez-Badell, Mauro De Nisco, Andrea Carpentieri, Margarita Suárez, Silvana Pedatella","doi":"10.1002/cplu.202400404","DOIUrl":"10.1002/cplu.202400404","url":null,"abstract":"The aggregation of β-amyloid peptide (Aβ) is associated with neurodegenerative diseases such as Alzheimer's disease (AD). Several therapies aimed at reducing the aggregation of this peptide have emerged as potential strategies for the treatment of AD. This paper describes the design and preparation of new hybrid molecules based on steroids, selenosugars, and [60]fullerene as potential inhibitors of Aβ oligomerization. These moieties were selected based on their antioxidant properties and possible areas of interaction with the Aβ. Cyclopropanations between C60 and malonates bearing different steroid and selenosugar moieties using the Bingel-Hirsch protocol have enabled the synthesis of functionalized molecular hybrids. The obtained derivatives were characterized by physical and spectroscopic techniques. Theoretical calculations for all the selenium compounds were performed using the density functional theory DFT/B3LYP-D3(BJ)/6-311G(2d,p) predicting the most stable conformations of the synthesized derivatives. Relevant geometrical parameters were investigated to relate the stereochemical behavior and the spectroscopic data obtained. The affinity of the compounds for Aβ-peptide was estimated by molecular docking simulation, which predicted an increase in affinity and interactions for Aβ for the hybrids containing the C60 core. In addition, parameters such as lipophilicity, polar surface area, and dipole moment were calculated to predict their potential interaction with membrane cells.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202400404"},"PeriodicalIF":3.0,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142131376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sequential Release of Ibuprofen and the Gasotransmitter Hydrogen sulfide using Oxanorbornane-Based Synthetic Lipids as Carriers. 使用氧降冰片烷基合成脂作为载体依次释放布洛芬和气体传递剂硫化氢

IF 3 4区化学

ChemPlusChem Pub Date : 2024-09-05 DOI: 10.1002/cplu.202400323

Akshaya Kana Veedu, Archana Panthalattu Parambil, Muraleedharan K Manheri

{"title":"Sequential Release of Ibuprofen and the Gasotransmitter Hydrogen sulfide using Oxanorbornane-Based Synthetic Lipids as Carriers.","authors":"Akshaya Kana Veedu, Archana Panthalattu Parambil, Muraleedharan K Manheri","doi":"10.1002/cplu.202400323","DOIUrl":"10.1002/cplu.202400323","url":null,"abstract":"After understanding the biological signaling roles of hydrogen sulfide and its involvement in various physiological processes, there has been enormous interest in exploring its therapeutic utility in areas such as cancer, inflammation, cardiovascular diseases, etc. There is also growing interest in using suitable H2S donors in combination with other drugs to improve the treatment outcome through the modulation of multiple pathways. The premature release of H2S from small molecule donors and the difficulty in controlling its spatio-temporal distribution are the major challenges during these efforts. Hence the development of appropriate carriers that can release this gasotransmitter along with the therapeutic entity of interest in a controlled manner has high significance. In this regard, this report presents a novel drug delivery system from oxanorbornane-based synthetic lipids that carries a H2S-releasing 1,2-dithiole-3-thione moiety as part of the head group. Nanoaggregates of the resulting conjugate are not only capable of efficiently entrapping a non-steroidal anti-inflammatory drug such as ibuprofen, but also release this drug and H2S in a controlled and sequential manner.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202400323"},"PeriodicalIF":3.0,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142131306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of Metal-Supported Nanostructured Zeolite Catalysts and their Applications in the Upgrading of Biomass-Derived Furans: Advances and Prospects 金属支撑纳米结构沸石催化剂的制备及其在生物质衍生呋喃升级中的应用：进展与前景》。

IF 3 4区化学

ChemPlusChem Pub Date : 2024-09-04 DOI: 10.1002/cplu.202400343

Peerapol Pornsetmetakul, Narasiri Maineawklang, Chularat Wattanakit

引用次数: 0

Preparation of Novel Hierarchical Catalysts by Simultaneous Generation of β-Zeolite and Mesoporous Silica for Catalytic Cracking. 通过同时生成β-沸石和介孔二氧化硅制备用于催化裂化的新型分层催化剂。

IF 3 4区化学

ChemPlusChem Pub Date : 2024-09-04 DOI: 10.1002/cplu.202400447

Haruna Oshimura, Shuuma Tanaka, Shouya Nagata, Shinya Matsuura, Tadanori Hashimoto, Atsushi Ishihara

{"title":"Preparation of Novel Hierarchical Catalysts by Simultaneous Generation of β-Zeolite and Mesoporous Silica for Catalytic Cracking.","authors":"Haruna Oshimura, Shuuma Tanaka, Shouya Nagata, Shinya Matsuura, Tadanori Hashimoto, Atsushi Ishihara","doi":"10.1002/cplu.202400447","DOIUrl":"10.1002/cplu.202400447","url":null,"abstract":"The gel skeletal reinforcement (GSR) method was applied at the preparation stage of β-zeolite to prepare a novel hierarchical catalyst. A solution of hexamethyldisiloxane (HMDS) and acetic anhydride, a GSR reagent, was added to the mixture of colloidal silica, sodium aluminate, tetraethylammonium hydroxide, sodium hydroxide and water, and successive aging and hydrothermal treatment gave microporous β-zeolite surrounded by mesoporous silica like core-shell structure. Its properties were characterized by XRD, nitrogen adsorption and desorption, NH3-TPD, TEM, and TG-DTA measurements, and further characteristics of the catalysts produced were clarified by the catalytic cracking of n-dodecane. The hierarchical structure of microporous zeolite and mesoporous silica was shown from GSR-2.9HS-H-Beta to GSR-3.2HS-H-Beta, where the molar ratio of HMDS and silica source of β-zeolite was 2.9~3.2 : 100. It was found that in the catalytic cracking of n-dodecane, the relative activity (the conversion per the amount of zeolite crystals) increased with the increase in mesopore volume and surface area. The result indicated that the introduction of mesopores was effective even in catalytic cracking of small molecule of n-dodecane.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e202400447"},"PeriodicalIF":3.0,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142124345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent Advances of Organic-Inorganic Hybrid Fluorescent Hyperbranched Polymer: Synthesis, Performance Regulation Strategies and Applications. 有机-无机杂化荧光超支化聚合物的最新进展：合成、性能调节策略与应用》。

IF 3 4区化学

ChemPlusChem Pub Date : 2024-09-04 DOI: 10.1002/cplu.202400302

Yanyun He, Rui Wu, Yan Zhao, Weixu Feng, Chenyu Zhao, Hongxia Yan

引用次数: 0