Applied Organometallic Chemistry最新文献

{"title":"Fabrication of Magnetic Core-Shell Fe3O4@MnO2@polydopamine Composite for High-Performance Adsorption of Methylene Blue and Malachite Green in Aqueous Solution","authors":"Peining Zhu,&nbsp;Yong Ma,&nbsp;Yufei Gao","doi":"10.1002/aoc.70058","DOIUrl":"https://doi.org/10.1002/aoc.70058","url":null,"abstract":"<div>\u0000 \u0000 <p>The composite material featuring a magnetic core-shell structure, designated as Fe₃O₄@MnO₂@polydopamine (PDA), has been synthesized for the purpose of eliminating methylene blue (MB) and malachite green (MG) dyes from aqueous solutions. This composite is characterized by the hydrothermal assembly of densely packed manganese dioxide (MnO₂) nanosheets onto Fe₃O₄ microspheres, resulting in a significant enhancement of the composite's specific surface area. The encapsulated PDA exhibits a significant presence of nitrogen and oxygen elements, which serve as active sites for dye adsorption. At a temperature of 298.15 K, the adsorption capacities for MB and MG are measured at 50.17 and 48.73 mg g⁻¹, respectively. Furthermore, at 308.15 K, the adsorption efficiencies for MB and MG are recorded at 98.55% and 97.84%, respectively. The test results indicate that the adsorption behavior is characterized as chemisorption. Furthermore, it adheres to the pseudo-second-order kinetic model and the Langmuir isotherm model across various temperatures. The overall process is identified as a spontaneous endothermic reaction, with the rate primarily influenced by micropore diffusion and the equilibrium adsorption associated with intraparticle diffusion. Following the desorption treatment, Fe₃O₄@MnO₂@PDA continues to exhibit effective adsorption capabilities for MB and MG dyes, indicating significant practical application potential.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431654","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}

{"title":"Study of Charge Transfer Mechanism and Dielectric Relaxation of CdSe-MSA Nanocrystals","authors":"Mohamed Bouzidi,&nbsp;Abdullah A. Alatawi,&nbsp;Naim Bel Haj Mohamed,&nbsp;Abdullah S. Alshammari,&nbsp;Mansour Mohamed,&nbsp;Ziaul R. Khan,&nbsp;Abdallah Ben Rhaiem","doi":"10.1002/aoc.70042","DOIUrl":"https://doi.org/10.1002/aoc.70042","url":null,"abstract":"<div>\u0000 \u0000 <p>The CdSe nanocrystals were synthesized in an aqueous medium containing mercaptosuccinic acid (MSA). The X-ray diffraction study verifies that CdSe-MSA has a cubic phase. Scanning electron microscopy (SEM) images show an array of approximately spherical nanoparticles with very small sizes. The electrical and dielectric properties of these nanocrystals were studied using the complex impedance method. By analyzing Nyquist diagrams, we derived the equivalent circuit consisting of R//C//CPE for temperaturesT ≤ 413 K, with a Warburg element appearing for T &gt; 413 K, confirming the diffusion of MSA on the surface of the nanocrystals. The relaxation time (τ) was deduced by analyzing the spectra of M\" using the Bergman equation, which is defined by an activation energy (Ea) of 0.743 eV. The conductivity follows Jonscher's power law, with DC conductivity (σ_DC) increasing in phase I (T ≤ 413 K) and decreasing in phase II (T &gt; 413 K). The variation of <b>s</b> as a function of temperature shows that the conductivity adheres to the single CBH model in the semiconductor domain. It is observed that the hopping distance (R_W) decreases with temperature and frequency, which explains the increase in charge carriers and the rise in conductivity in this temperature range.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431131","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}

{"title":"New Methods for the Synthesis of Highly Fluorescently Substituted Heterocyclic Boranils: Structural Identification and Photophysical Properties","authors":"Soumaya Agren,&nbsp;Jamal El Haskouri,&nbsp;Emmanuel Beyou,&nbsp;Mohamed Hassen V. Baouab","doi":"10.1002/aoc.70064","DOIUrl":"https://doi.org/10.1002/aoc.70064","url":null,"abstract":"<p>We report the synthesis, structural, thermal, and photophysical properties of six boranils ((A-F)-BF2). Compounds (A-C)-BF2 were synthesized at low temperature, while nitro and pyridine derivatives were obtained at 80°C with yields up to 66%. Tert-butyl and chloro-substituted boranils showed thermal stability up to 300 °C. All boranils were fluorescent, with properties tuned by phenyl substitution and boron difluoride complexation. The lowest energetic gap (2.210 eV) was found in (D-BF2), which exhibited a remarkable red-shift in absorption and emission due to charge transfer between donor and acceptor groups. This work is part of ongoing studies on metal cation detection and photocatalysis.</p>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aoc.70064","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design, Synthesis, Physico-Chemical Characterization, Stability Determination, and Biomedical Applications of Some Novel Tetra-Dentate Imine Metal Chelates Supported by Theoretical Approaches: Bridging Coordination Chemistry and Life Sciences","authors":"Inam Omar,&nbsp;Mona M. A. Alharas,&nbsp;Mehran Feizi-Dehnayebi,&nbsp;Sultan K. Alharbi,&nbsp;Hala M. Abo-Dief,&nbsp;Hamza A. Qasem,&nbsp;Rafat M. El-Khatib,&nbsp;Ahmed M. Abu-Dief","doi":"10.1002/aoc.70056","DOIUrl":"https://doi.org/10.1002/aoc.70056","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 &lt;p&gt;The synthesis of 4-Bromo-2-({2-[(5-bromo-2-hydroxy-benzylidene)-amino]-5-nitro-phenylimino}-methyl)-phenol (BSNP ligand), a straightforward, highly adjustable, and efficient BSNP ligand, was demonstrated. Four novel BSNP ligand coordinating compounds were created. The structures of these compounds were clarified by a variety of spectroscopic and analytical techniques, such as elemental analysis (CHN), spectroscopy (IR, NMR, mass spectrometry), conductivity, magnetic susceptibility, UV–Vis spectrum studies, and theoretical investigations. Additional analysis of the compounds showed that they were surrounded by an octahedral-coordinating environment. With conductance values ranging from 0.9.60 to 11.87 Ω&lt;sup&gt;−1&lt;/sup&gt; cm&lt;sup&gt;2&lt;/sup&gt; mol&lt;sup&gt;−1&lt;/sup&gt;, molar conductance values showed that the Fe (III), Zn (II), Cu (II), and Ru (III) complexes are non-electrolytes in fresh DMSO solutions, with the exception of the BSNPRu complex, which is mono electrolyte. According to IR spectra, the ligand uses the (N and O) donor sites from the (C=N and C-O) groups in the ligand moiety to coordinate through the metal ions in a tetra-dentate form. A 1:1 (metal:ligand) molar ratio was proposed by Job's approach based on analytical data from solution complexation. According to the stability constant (&lt;i&gt;K&lt;/i&gt;&lt;sub&gt;&lt;i&gt;f&lt;/i&gt;&lt;/sub&gt;) values, the complexes' stability order was found to be BSNPFe &gt; BSNPRu &gt; BSNPCu &gt; BSNPZn. The pH profile showed that the complexes under study are stable throughout a broad pH range, usually between pH = 4 and pH = 10. The complexes' geometric structures and ligand coordination capabilities were inferred with the use of magnetic and electronic spectrum studies. To gain deeper insights into the reactivity and potential biological activity of the synthesized metal complexes, DFT calculations were performed. The computational analysis was carried out using the DFT/B3LYP/6-311g (d,p)/LANL2DZ level in the gas phase in order to explore the active sites and quantum chemical reactivity of the compounds. Building on the encouraging results from our in-vitro analyses, which demonstrated notable antimicrobial, antifungal, and anticancer properties of the synthesized metal complexes, molecular docking simulations were subsequently performed to further substantiate these promising biological activities. The anti-pathogenic activity of the generated materials was experimentally verified against a subset of gram (+) and gram (−) bacteria as well as some fungi using the agar well diffusion method. Additionally, the BSPN ligand's and its metal compounds' cytotoxic action on liver cells, breast, and colon cancers was investigated. Furthermore, the examined compounds' ability to suppress the DPPH radical was examined. Additionally, simulations of molecular landing were performed to ascertain how the produced compounds attached to the specific protein binding sites. Some novel metal chelates incorporating 4-Bromo-2-({2-[(5-brom","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431361","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}

{"title":"Preparation and Properties of Cd/Ni Complexes Based on 2,6-Bis(4′-carboxyl-phenyl)pyrazine Ligand","authors":"Wei Liu,&nbsp;Junjun Sun,&nbsp;Wei Yao,&nbsp;Vladimir P. Fedin,&nbsp;Enjun Gao","doi":"10.1002/aoc.70051","DOIUrl":"https://doi.org/10.1002/aoc.70051","url":null,"abstract":"<div>\u0000 \u0000 <p>Two transition metal complexes (complex <b>1</b> = {[Cd (DCPP)·(H₂O)]·(DMF)}_n and complex <b>2</b> = {[Ni (DCPP)·(H₂O)]·(DMF)}_n) with the same structure and different functions were synthesized based on 2,6-bis(4′-carboxybenzene)pyrazine ligand (H₂DCPP) by solvothermal method, and their structure and properties were analyzed and characterized by a variety of characterization methods. Complex <b>1</b> was used as a fluorescence sensor to recognize cations and anions in water; it had excellent recognition and anti-interference ability with Fe³⁺ and Cr₂O₇²⁻ among cations and anions. Complex <b>2</b> (<b>2</b>-CPE) was used as electrochemical material to perform electrochemical tests on hydrogen peroxide and sodium nitrite with good electrocatalytic effect. This work provides a synthesis strategy for fluorescence and electrochemical sensing materials, respectively.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431363","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}

{"title":"Efficient Removal of Emerging Contaminant Sulfamethazine in Water by Fe2O3: Roles of Morphological Features and Oxygen Vacancies","authors":"Guangyu Wu,&nbsp;Geng Li,&nbsp;Jingyi Wang,&nbsp;Shilin Shi,&nbsp;Simeng Guo,&nbsp;Yuwei Pan,&nbsp;Ying Zhang,&nbsp;Jiangang Han,&nbsp;Weinan Xing","doi":"10.1002/aoc.70062","DOIUrl":"https://doi.org/10.1002/aoc.70062","url":null,"abstract":"<div>\u0000 \u0000 <p>The inability to recycle Fenton reagents and a narrow pH range restricts hematite (Fe₂O₃) application in the actual photo-Fenton system. The engineering of surface structures is identified as an effective approach for enhancing the photo-Fenton activity of the material. In this work, three different morphologies (nanosheet, cube, and ring) Fe₂O₃ materials containing oxygen vacancies (OVs) were synthesized by hydrothermal method, and a novel system for the photo-Fenton degradation of sulfamethazine was examined. In the presence of oxalic acid, the Fe₂O₃/oxalic acid heterogeneous catalytic system demonstrated the in situ generation of H₂O₂ and facilitated Fenton-like reactions. The as-prepared nanosheet-Fe₂O₃ showed the highest photo-Fenton degradation efficiency. The free radical capture experiment was investigated by using different free radical sacrificial agents, and the results suggested that superoxide radicals were the principal active species involved. Ecotoxicity assessments utilizing toxicity prediction software assessed the reaction intermediates generated during sulfamethazine degradation via a quantitative structure–activity relationship method, indicating that these intermediates exhibited reduced developmental toxicity. The possible pathways of sulfamethazine degradation and mechanism for synergistic degradation sulfamethazine effect between Fe₂O₃ and oxalic acid were proposed. This research presents an effective strategy for the design and synthesis of Fe₂O₃ photocatalysts with various morphologies and oxygen vacancies, suitable for application in photo-Fenton catalysis and related environmental contexts.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143423899","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}

{"title":"Highly Efficient Ag/Fe3O4@MWCNTs MNCs Catalyzed Green Synthesis of New Derivatives of 1,2,4-Triazine: The Cytotoxic Activity Investigation of 1,2,4-Triazines","authors":"Nasir Iravani,&nbsp;Khatereh Khandan Barani,&nbsp;Majid Moradian,&nbsp;Zinatossadat Hossaini","doi":"10.1002/aoc.70012","DOIUrl":"https://doi.org/10.1002/aoc.70012","url":null,"abstract":"<div>\u0000 \u0000 <p>This study synthesized 1,2,4-triazines, a novel class of derivatives, with a high efficiency using a multicomponent reaction. The reaction involved oxoindolinylidene malononitrile, ethyl 2-arylamino-4-dioxo-4-arylbutanoates, and hydrazonoyl chlorides in an aqueous solution at room temperature. The reaction was facilitated by the presence of Ag/Fe₃O₄@MWCNTs MNCs. This study examines the antioxidant properties of 1,2,4-triazine in addition to the other research undertaken in this work. Using the MTT test, the cytotoxic properties of all the produced compounds were assessed in vitro against cancer cell lines (MCF-7 and A549) and normal cell lines (BEAS-2B). It was discovered that the most effective cytotoxic agent, doxorubicin like in its lack of selectivity, was Derivative <b>4e</b>. On the other hand, Compound <b>4b</b> might be regarded as an equipotent molecule with greater selectivity in relation to doxorubicin. The production process of 1,2,4-triazine demonstrated several advantageous features, including rapid reactions, high yields of the final product, and straightforward separation of the catalyst and product from the reaction mixture.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143423895","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}

{"title":"Nickel(II) Complexes of Benzoylpyridine Diaminoguanidinedihydrazone via In Situ One-Pot Method: Structural, Spectral, and Catalytic Studies","authors":"K. K. Mohammed Hashim,&nbsp;Lahinakillathu Nishana,&nbsp;M. R. Prathapachandra Kurup,&nbsp;Ayyamperumal Sakthivel,&nbsp;E. Manoj","doi":"10.1002/aoc.70055","DOIUrl":"https://doi.org/10.1002/aoc.70055","url":null,"abstract":"<div>\u0000 \u0000 <p>Seven Ni(II) complexes (<b>1</b>–<b>7</b>) designed from a new nitrogen-rich ligand 1,3-bis(phenyl(pyridin-2-yl)methylideneamino)guanidine hydrochloride (H₃L‧ HCl) are reported. The complexes were synthesized using <i>in situ</i> one-pot method and characterized by elemental analyses, FT-IR, Far-IR, electronic solution-phase spectra, solid-state electronic diffuse reflectance spectra (UV-DRS), conductivity measurements, and room temperature magnetic moment calculations. The structures of H₃L‧ HCl and complex <b>7</b> were confirmed via SCXRD analysis. Additionally, complex <b>4</b> on crystallization yielded a new mononuclear complex, [Ni(H₂L)]Cl‧ 2H₂O (<b>4a</b>), which was confirmed by SCXRD analysis. The molecular packing of the compounds is affected by the counter anions and stabilized by various noncovalent interactions within the crystal lattice, which were analyzed quantitatively by Hirshfeld surface analysis. The band gaps of the compounds indicate semiconductor characteristics, which were evaluated experimentally and subsequently analyzed by DFT calculations. The catalytic investigation reveals that the Ni(II) complex <b>7</b> facilitates a cinnamyl alcohol conversion of 90% with a selectivity of 92% for cinnamaldehyde under the optimal reaction conditions of 80°C for 24 h, employing TBHP in decane as the oxidizing agent. Similarly, all other complexes are also found to exhibit comparable conversions in the range of 81%–91% under optimal conditions. Furthermore, <i>in silico</i> molecular docking studies demonstrated the binding affinity of the ligand and complex <b>4</b> with SARS-CoV-2 main protease active site (M^pro), which makes them suitable candidates for further biological exploration.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143423780","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}

{"title":"Effect of Shell Thickness on the Catalytic Performance of Co@SiO2 Core-Shell Catalysts for Fischer–Tropsch Synthesis","authors":"Xin Wang,&nbsp;Tao Chen,&nbsp;Zhenhua Li","doi":"10.1002/aoc.70068","DOIUrl":"https://doi.org/10.1002/aoc.70068","url":null,"abstract":"<div>\u0000 \u0000 <p>Fischer–Tropsch synthesis (FTS) is an essential strategy for mitigating the energy crisis, combating climate change, and promoting sustainable development. Supported cobalt-based catalysts exhibit significant activity in FTS, but their product selectivity requires further optimization. In this paper, Co@SiO₂ catalysts with core-shell structure were prepared by hydrothermal synthesis. The effect of the SiO₂ shell thickness on the catalytic performance of FTS was explored by varying the amount of ethyl orthosilicate (TEOS) added with stabilizer polyvinylpyrrolidone (PVP). Among them, the catalyst CS3 achieved the greatest number of cobalt active sites, the highest CO conversion (77.2%), and C₅₊ selectivity (84.3%) with a high C₅-C₁₁ proportion in the C₅₊ product. Characterizations of the catalysts were performed to examine their morphology and physicochemical properties. It was observed that the dispersion of cobalt species improved with increasing shell thickness within a certain range, promoting the reduction of cobalt species. However, the formation of Si-OH groups because of the hydrolysis of excess TEOS clogged catalyst pores, consequently diminishing the catalytic activity in FTS. Compared with the CS3-PVP0 catalyst without stabilizer PVP added, the catalyst CS3 with PVP added exhibited obvious ordered morphology, making CO conversion significantly enhanced. This is attributed to the role of inert carbon in PVP, which not only boosts the reducibility of cobalt species but also enhances the surface hydrophobicity of the mesoporous SiO₂ material.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404450","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}

{"title":"Nickel Catalyst With Excellent Thermal Stability for Ethylene Polymerization and Copolymerization","authors":"Wanlu Tian,&nbsp;Hengchao Guan,&nbsp;Wenbing Wang,&nbsp;Xin Kong,&nbsp;Wenmin Pang,&nbsp;Quan Wang,&nbsp;Fuzhou Wang,&nbsp;Chen Zou","doi":"10.1002/aoc.70063","DOIUrl":"https://doi.org/10.1002/aoc.70063","url":null,"abstract":"<div>\u0000 \u0000 <p>Recently, a series of inexpensive nickel-based phosphine phenol catalysts have been synthesized for catalyzing the copolymerization of ethylene and polar monomers to prepare functionalized polyolefins. However, it is still challenging to achieve homogeneous nickel catalysts that catalyze ethylene polymerization or copolymerization at high temperatures (up to 150°C) with high activity. This work synthesized a series of phosphine phenol nickel catalysts with bulky steric hindrance and electron donating groups, which were used for catalyzing ethylene polymerization and coordination copolymerization of ethylene and a series of polar monomers at high temperatures. These nickel catalysts exhibited high ethylene polymerization activity and excellent thermal stability at 150°C, producing polyethylene with a molecular weight of up to 102.7 × 10⁴ g mol⁻¹. More importantly, these catalysts can catalyze the copolymerization of ethylene and a range of polar monomers at 120°C, improving the surface properties of polyolefins.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143388960","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}