Journal of Organometallic Chemistry最新文献

{"title":"Synthesis, characterization and antimicrobial activity of Ferrocene based bimetallic Zn (II) complexes with mixed-ligands containing 2, 2-bipyridyl and 1, 10-phenanthroline","authors":"Gul Wali Khan ,&nbsp;Abid Ali ,&nbsp;Muhammad Adeel Asghar ,&nbsp;Warda Mansur ,&nbsp;Saneea Atta ul Haq ,&nbsp;Munawar Iqbal ,&nbsp;Samiah H. Al-Mijalli ,&nbsp;Wissem Mnif","doi":"10.1016/j.jorganchem.2024.123490","DOIUrl":"10.1016/j.jorganchem.2024.123490","url":null,"abstract":"<div><div>Three novel ferrocene-based organometallic complexes of zinc, containing either homoleptic or heteroleptic (mixed-ligand) structures [Zn (FcBz)₂ (H₂O)₂] (1), [Zn (FcBz)₂ Bipy] (2), [Zn (FcBz)₂ Phen] (3), which FcBz = 4-ferrocenyl benzoate, Phen = 1, 10-phenanthroline, Bipy = 2, 2-bipyridyl, were chemically synthesized and well characterized by ¹³C NMR, ¹H NMR, FT-IR, elemental analysis and thermal gravimetric analysis (TGA). The synthesized complexes incorporate ligands that exhibit bidentate chelation, resulting in hexacoordinate geometry. The complexes were exposed to antibacterial testing against pathogenic Gram-negative and Gram-positive bacteria. Antimicrobial research revealed that heteroleptic complexes outperformed homoleptic ones. The [Zn (FcBz)₂Phen] complex exhibited the highest efficacy, making it a viable organometallic contender for antibacterial applications.</div></div>","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1026 ","pages":"Article 123490"},"PeriodicalIF":2.1,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143309541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A simple, highly selective ferrocene-based chalcone fluorescent probe for the detection of CrO42− and Cr2O72− ions","authors":"Yuting Liu ,&nbsp;Zixu Zhang ,&nbsp;Dawei Yin ,&nbsp;Yukai Huang ,&nbsp;Ruilin Zheng ,&nbsp;Yi Zhou ,&nbsp;Jiabao Chen ,&nbsp;Chi Dang","doi":"10.1016/j.jorganchem.2024.123489","DOIUrl":"10.1016/j.jorganchem.2024.123489","url":null,"abstract":"<div><div>Cr (VI) is the most common water contaminant and is used in aluminum plating, paint production, leather tanning, etc. Cr (VI) is a kind of inhaled and swallowed poison, can enter the body through the digestive tract, respiratory tract, skin mucous membranes, may occur after skin contact dermatitis, or allergic phenomenon, in view of the harm of Cr (VI) to the human body, the development of a probe that can detect two kinds of Cr (VI) in the environment is an urgent problem. In this paper, 1-ferrocenyl-3-(2-hydroxyphenyl) allyl ketone (Probe A) was synthesized by solid phase grinding using acetyl ferrocene and o-hydroxybenzaldehyde as raw materials and I₂ as catalyst by green synthesis method. It was found that 1-ferrocenyl-3-(2-hydroxyphenyl) allyl ketone had specific recognition ability to Cr₂O₇²⁻ and CrO₄²⁻ by UV spectroscopy and fluorescence spectroscopy. It has better anti-interference performance under complex conditions. In addition, it was found that the binding ratio, binding constant and detection limit of 1-ferrocenyl-3-(2-hydroxyphenyl) allyl ketone for Cr₂O₇²⁻ and CrO₄²⁻ were 1:1 and 3:2, respectively. 5.1330×10⁶ M⁻¹and 5.7048×10⁴ M⁻¹, 1.6714×10⁻⁴ M, 1.7246×10⁻⁴ M by UV titration experiment. The effect of pH and time on the recognition ions of 1-ferrocenyl-3-(2‑hydroxy-phenyl) allyl ketone was studied. In 80 min, the probe structure is stable, CrO₄²⁻ and Cr₂O₇²⁻ can be identified stably. when the pH of the solution is 7∼8, the identification effect of probe A on Cr₂O₇²⁻ and CrO₄²⁻ ions is the best. The sensing mechanism of 1-ferrocenyl-3-(2-hydroxyphenyl) allyl ketone with Cr₂O₇²⁻ and CrO₄²⁻ was obtained by infrared and nuclear magnetic titration. And we carried out the test strip experiment, observed that with the increase of concentration, the color of the test strip changes significantly, which can be used for \"naked eye\" identification, this method can be more convenient and rapid detection of Cr (VI) solution.</div></div>","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1026 ","pages":"Article 123489"},"PeriodicalIF":2.1,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143309545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of magnetically retrievable nanostructure Pd catalyst system supported on keratin-Schiff base and its application in catalytic and antioxidant activities","authors":"Nuray Yılmaz Baran ,&nbsp;Emel Çakmak ,&nbsp;Yavuz Selim Çakmak ,&nbsp;Talat Baran","doi":"10.1016/j.jorganchem.2024.123492","DOIUrl":"10.1016/j.jorganchem.2024.123492","url":null,"abstract":"&lt;div&gt;&lt;div&gt;Recently, the production of biomaterial supported metal nanoparticles has gained significant importance as an emerging field with numerous applications ranging from healthcare to sustainable environment due to their unique chemical, catalytic, physical, and biological properties. In this paper, we fabricated magnetically retrievable Schiff base modified-keratin supported nano-sized Pd catalyst (Pd@keratin/Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;/Sch) to investigate its catalytic and antioxidant characteristics. The design procedure for Pd@keratin/Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;/Sch is as follows: (1) extraction of keratin from goose feathers, (2) loading of Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt; onto keratin (keratin/Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;), (3) amino-functionalization of keratin/Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt; (keratin/Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;/APT), (4) Schiff base modification of keratin/Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;/APT (keratin/Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;/Sch), and (5) preparation of the nano-structured Pd catalyst. Diverse analytical methods, bearing FT-IR, TEM, EDS, XRD, TGA, XPS, BET and FE-SEM were utilized to substantiate production of Pd nanoparticles. TEM results indicated that the formed Pd nanoparticles had an average particle size of 20 nm. The catalytic behavior of Pd@keratin/Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;/Sch was then studied in the catalytic reduction of nitroaromatics (&lt;em&gt;p&lt;/em&gt;-nitrophenol (&lt;em&gt;p&lt;/em&gt;-NP), &lt;em&gt;p&lt;/em&gt;-nitro-&lt;em&gt;o&lt;/em&gt;-phenylenediamine (&lt;em&gt;p&lt;/em&gt;-NPDA), &lt;em&gt;o&lt;/em&gt;-nitroaniline (&lt;em&gt;o&lt;/em&gt;-NA), &lt;em&gt;p&lt;/em&gt;-nitroaniline (&lt;em&gt;p&lt;/em&gt;-NA)) and organic dyes (rhodamine B (RhB), methyl orange (MO) and methylene blue (MB)). The Pd@keratin/Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;/Sch successfully reduced &lt;em&gt;p&lt;/em&gt;-NP, &lt;em&gt;p&lt;/em&gt;-NPDA, &lt;em&gt;p&lt;/em&gt;-NA, and &lt;em&gt;o&lt;/em&gt;-NA rapidly with rate constants of 0.018 s&lt;sup&gt;−1&lt;/sup&gt;, 0.013 s&lt;sup&gt;−1&lt;/sup&gt;, 0.039 s&lt;sup&gt;−1&lt;/sup&gt;, and 0.034 s&lt;sup&gt;−1&lt;/sup&gt;, respectively. In addition, it promptly reduced MB, while it reduced MO and RhB with rate constants of 0.023 s&lt;sup&gt;−1&lt;/sup&gt; and 0.054 s&lt;sup&gt;−1&lt;/sup&gt;, respectively. The Pd@keratin/Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;/Sch was readily recovered due to its magnetic nature and was reused up to six cycles. The stability of Pd@keratin/Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;/Sch was confirmed through EDS and ICP analyses conducted after the reusability tests. The samples obtained after each step in the Pd@keratin/Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;/Sch production were also investigated for their antioxidant activities. The order of antioxidant activity was found to decrease in the following sequence: keratin/Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;, Pd@keratin/Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;/Sch, keratin/Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;/APT, keratin/Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;/Sch and keratin, respectively. The fabricated Pd@keratin/Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;/Sch is an ideal catalyst system for remediating wastewater contaminants and biological applications with excellent catalytic and antioxidant capacity, easy recovery, and ","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1026 ","pages":"Article 123492"},"PeriodicalIF":2.1,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143309521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Direct synthesis of hyperbranched oligoethylene using o-phenylene-bridged binuclear pyridine-imine Ni(II) catalysts","authors":"Hua Wang ,&nbsp;Yusheng Han ,&nbsp;Yan Wang ,&nbsp;Weiqing Lu ,&nbsp;Hui Wang","doi":"10.1016/j.jorganchem.2024.123491","DOIUrl":"10.1016/j.jorganchem.2024.123491","url":null,"abstract":"<div><div>Recently, nickel and palladium complexes based on pyridine-imine platform have found extensive application in olefin polymerization and copolymerization. In this study, we created two <em>o</em>-phenylene-bridged dinuclear nickel pyridine-imine catalysts for the oligomerization of ethylene. The dinuclear catalyst with an H atom at the 6-position of pyridine exhibited exceptionally high polymerization activity, which is an order of magnitude higher (2.82–4.65 vs 0.57–0.66 × 10⁶ g.mol⁻¹h⁻¹) than that of its corresponding brominated analog. On the other hand, the oligoethylenes produced by this catalyst had a molecular weight that is also an order of magnitude higher (1582–2213 vs 315–382 g/mol) and possesses a lower branching density (88–101 vs. 133–161/1000C) compared to the oligoethylenes generated by the brominated analog. When further compared to the corresponding mononuclear nickel catalyst, the dinuclear catalyst demonstrated a stronger ability to inhibit chain transfer and chain walking, resulting in the production of oligoethylenes with higher molecular weight and lower branching density. This may be attributed to a bimetallic synergistic effect or merely a steric hindrance superposition effect. Additionally, nuclear magnetic resonance (NMR) analysis further confirmed the hyperbranched structure of the oligoethylenes.</div></div>","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1026 ","pages":"Article 123491"},"PeriodicalIF":2.1,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143309543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Deprotonative approach to poly(1,3-phenylene) synthesis by palladium-catalyzed cross-coupling polymerization","authors":"Farid Fithrie bin Zainal Annuar ,&nbsp;Shuichi Ikeda ,&nbsp;Kentaro Okano ,&nbsp;Atsunori Mori","doi":"10.1016/j.jorganchem.2024.123488","DOIUrl":"10.1016/j.jorganchem.2024.123488","url":null,"abstract":"<div><div>The directing effect of oxygen atom in 4-halo-alkoxybenzene allowed ortho-lithiation at the carbon atom adjacent to the oxygen atom using lithium 2,2,6,6-tetramethylpiperidide (LiTMP). The obtained organolithium intermediate was trapped by a boron reagent to afford 2-borylated 4-halo-alkoxybenzene. The arylboronate underwent palladiumcatalyzed cross-coupling polymerization to give regioregular poly(1,3-phenylene) with the average degree of polymerization (<em>DP</em>n) close to the theoretical one based on the ratio of monomer feed vs. catalyst loading. The overall borylation-polymerization sequence was also found to proceed in a one-pot manner to afford poly(1,3-phenylene).</div></div>","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1026 ","pages":"Article 123488"},"PeriodicalIF":2.1,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143309539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the effect of auxiliary ligands in CoIII-NHC Complexes towards alkylation of amines using alcohols","authors":"Misba Siddique,&nbsp;Biswaranjan Boity,&nbsp;Arnab Rit","doi":"10.1016/j.jorganchem.2024.123479","DOIUrl":"10.1016/j.jorganchem.2024.123479","url":null,"abstract":"<div><div>Here, we have presented a systematic study on the cobalt-mediated alkylation of amines using aromatic primary alcohols with sterically demanding substrates. In this context, we have employed two newly synthesized cobalt-NHC complexes <strong>Co1</strong> and <strong>Co2</strong>, and pyridine appended (<strong>Co3</strong>-<strong>Co6</strong>) complexes to evaluate their catalytic efficiency. Among them, the pyridine-based benzimidazolin-2-ylidene Co-NHC complexes <strong>Co4</strong> and <strong>Co6</strong> showed high efficiency. However, the complex <strong>Co4</strong>, featuring a <strong>Cp*</strong>, exhibited lesser reactivity with sterically demanding <em>ortho</em>-substituted anilines, whereas complex <strong>Co6</strong>, with an acetylacetonate (acac) ligand, outperformed the rest. This outcome aligns with the steric mapping results of the employed catalysts. Furthermore, complex <strong>Co6</strong> proved to be effective for the cyclization of 2-nitroaniline <em>via</em> coupling with various substituted benzyl alcohols.</div></div>","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1027 ","pages":"Article 123479"},"PeriodicalIF":2.1,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143358348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Theoretical studies on the mechanism of Rh−catalyzed [3+2+1] cycloaddition reaction of vinylidene cyclopropane with carbon monoxide","authors":"Huimin Xu,&nbsp;Tao Wang,&nbsp;Wanjun Zhao,&nbsp;Ying Ren,&nbsp;Jianfeng Jia,&nbsp;Hai-Shun Wu","doi":"10.1016/j.jorganchem.2024.123487","DOIUrl":"10.1016/j.jorganchem.2024.123487","url":null,"abstract":"<div><div>DFT calculations have been carried out to study the mechanism of the Rh-catalyzed Pauson-Khand [3+2+1] cycloaddition reaction of vinylidene cyclopropane with carbon monoxide, as well as the diastereoselectivity of the products. It is found that reaction initializes by oxidative addition involves the distal C−C bond cleavage of cyclopropane groups, which is promoted by Rh(I) complex, to give <em>η</em>⁴-TMM Rh(III) intermediate, followed by CO insertion. Continuing with the next process, olefin insertion, determines the formation of the <em>cis</em>-product or <em>trans</em>-product, depending on the orientation of coordinated olefin moiety to the Rh center. The calculations provide a successful interpretation of the experimental observersed diastereoselectivity.</div></div>","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1026 ","pages":"Article 123487"},"PeriodicalIF":2.1,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143309524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and structural characterization of 2,2’-bipyridine zinc formate: Analysis of formate bonding and hydrosilylation of CO2 and carbonyl compounds","authors":"Gonzalo Fernandez de la Mora,&nbsp;Aaron Loo,&nbsp;Ran Yan,&nbsp;Eshe Hummingbird,&nbsp;Gerard Parkin","doi":"10.1016/j.jorganchem.2024.123471","DOIUrl":"10.1016/j.jorganchem.2024.123471","url":null,"abstract":"<div><div>The zinc formate compound (bipy)Zn(O₂CH)₂ is obtained <em>via</em> the reaction of Zn(O₂CH)₂ with 2,2’-bipyridine (bipy). In addition, (bipy)Zn(O₂CH)₂ may be formed from zinc hydride <em>via</em> addition of bipy followed by addition of (i) HCO₂H and (ii) CO₂. The molecular structure of (bipy)Zn(O₂CH)₂ has been determined by X-ray diffraction, thereby demonstrating that it exists as a monomeric species with a distorted tetrahedral zinc center and κ¹-monodentate formate ligands. As such, the coordination environment of the zinc provides a contrast to the octahedral sites in the isomeric 4,4’-bipyridine counterpart, (bipy^4,4’)Zn(O₂CH)₂, and the aqua derivative, (bipy)Zn(O₂CH)₂(OH₂)·H₂O, both of which feature bridging formate ligands. Analysis of the bonding within the formate ligand indicates that the zinc–formate moiety is not best represented by a Zn–O–C(=O)H resonance structure, but instead possesses a significant ionic component that reduces the C=O bond order and increases the C–O bond order. The formate compound (bipy)Zn(O₂CH)₂ participates in hydrosilylation transformations involving CO₂ and carbonyl compounds, including (i) the reaction of CO₂ with (MeO)₃SiH to afford HCO₂Si(OMe)₃ and (ii) insertion of Ph₂CO, PhC(O)Me, Me₂CO and PhCHO into the Si–H bonds of PhSiH₃ to afford PhSi[OCH(R)R’]₃ <em>via</em> PhSiH₂[OCH(R)R’] and PhSiH[OCH(R)R’]₂.</div></div>","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1030 ","pages":"Article 123471"},"PeriodicalIF":2.1,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143444591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"One-pot sustainable synthesis of novel pyrido[2,3-d]pyrimidinones and their evaluation for antitubercular and anticancer activity","authors":"Sumaiya Tabassum ,&nbsp;Sankar Ganesh Ramaraj ,&nbsp;J. Rajprasad ,&nbsp;Vivekananthan Sadaiyandi ,&nbsp;Niraj Kumar ,&nbsp;Santhosh Govindaraju","doi":"10.1016/j.jorganchem.2024.123450","DOIUrl":"10.1016/j.jorganchem.2024.123450","url":null,"abstract":"<div><div>A novel green protocol for the construction of diversified pyrido[2,3-<em>d</em>]pyrimidinones was accomplished by a single-pot reaction of aryl aldehydes, Meldrum's acid, thiobarbituric acid, and ammonium acetate/aniline in H₂O using ʟ-proline as an expeditious reusable catalyst at room temperature (26 °C). Our strategy provides an innovative synthetic avenue for the construction of pyrido[2,3-<em>d</em>]pyrimidinones, as well as several advantages over traditional methods, including a simple procedure, shorter reaction duration, excellent yields, safe handling, easy workup, catalyst recovery, and environmental compatibility. Furthermore, the synthesised compounds were tested for their impact on different cell lines and microorganisms. Compounds 5d and 5e were particularly effective against Mycobacterium tuberculosis (antitubercular), human breast cancer cells (MCF-7), lung cancer cells (A549 and NCI-H460), and both Gram-positive (S. pyogenes) and Gram-negative (E. coli) bacteria. The derivatives with hydroxyl and nitro substitutions [5e, 5f] showed the highest potency against MCF-7, A549, and NCI-H460 cell lines, with IC₅₀ values of 3.68–4.36, 3.82–3.41, and 11.34–12.28 µg/mL, respectively.</div></div>","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1025 ","pages":"Article 123450"},"PeriodicalIF":2.1,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Catalytic epoxidation of olefin over metal-organic framework solids: A mini-review","authors":"Subratanath Koner","doi":"10.1016/j.jorganchem.2024.123449","DOIUrl":"10.1016/j.jorganchem.2024.123449","url":null,"abstract":"<div><div>By the turn of new millennium, especially last two decades witnessed an explosive growth of metal-organic framework (MOF) chemistry and studies on their functional properties. In the last few years, in particular, usage of metal-organic framework in heterogeneous catalysis have attracted a lot of attention. Catalytic research is mainly focused on the transition metal MOFs, however, of late, non-transition metal-based MOFs are also used. Here, epoxidation/oxidation reaction catalyzed by MOF under heterogeneous condition will be summarized. We have designed quite a few lanthanide metal-based MOFs that showed spectacular catalytic activity in oxidation/epoxidation. This mini-review will give a brief description of catalytic epoxidation over metal-organic frameworks along with research activity in our laboratory on this particular area.</div></div>","PeriodicalId":374,"journal":{"name":"Journal of Organometallic Chemistry","volume":"1025 ","pages":"Article 123449"},"PeriodicalIF":2.1,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}