European Journal of Inorganic Chemistry最新文献

{"title":"Phosphine-Ligated Cobalt(II) Acetylacetonate Complexes","authors":"J. P. I. Dulmini Jayawardhena,&nbsp;Jeanette A. Krause,&nbsp;Hairong Guan","doi":"10.1002/ejic.202500157","DOIUrl":"https://doi.org/10.1002/ejic.202500157","url":null,"abstract":"<p>Cobalt(II) acetylacetonate complexes bearing a phosphine ligand can be key intermediates or precursors to cobalt-based catalysts; however, they have been rarely studied, especially from a molecular structure point of view. This work is focused on the understanding of how different phosphines react with Co(acac)₂ (acac = acetylacetonate). To do so, a variety of analytical tools, including NMR and IR spectroscopy, X-ray crystallography, mass spectrometry, and elemental analysis, have been used to study the reactions and characterize the isolated products. These results have shown that the monodentate ligand, HPPh₂, binds to Co(acac)₂ weakly and reversibly to produce Co₂(acac)₄(HPPh₂), whereas the bidentate ligand, 1,2-bis(diphenylphosphino)ethane (dppe), interacts with Co(acac)₂ more strongly to yield a 1D coordination polymer of Co(acac)₂(dppe). 2-(Dicyclohexylphosphino)methyl-1 H-pyrrole (^CyPN^H), which is a pyrrole-tethered phosphine, forms an unusual 5-coordinate cobalt complex, Co(acac)₂(^CyPN^H), in which the pyrrole moiety participates in a bifurcated hydrogen–bonding interaction with the [acac]^– ligands. In contrast, another bidentate ligand, 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (xantphos), fails to react with Co(acac)₂, presumably due to its wide bite angle and difficulty in bridging two metals.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 19","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.202500157","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144615382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Front Cover: Theoretical Study of Local Environmental Effect on Electronic Structure of M-Cluster (Eur. J. Inorg. Chem. 15/2025)","authors":"Kazuki Honjo,&nbsp;Taigo Kamimura,&nbsp;Kohei Tada,&nbsp;Ryohei Kishi,&nbsp;Yasutaka Kitagawa","doi":"10.1002/ejic.202581501","DOIUrl":"https://doi.org/10.1002/ejic.202581501","url":null,"abstract":"<p><b>The Front Cover</b> shows a local environmental effect on the electronic structure of the M-cluster of nitrogenase, which was examined by DFT calculations from the viewpoint of the hydrogen bonds and water molecules. Hydrogen bonds from Ser265 significantly contribute to the stability of the LUMO, while the water molecules around the HCA strongly stabilize the HOMO. The contribution of Ser265 is, however, suppressed when an outer environmental field is applied. The results provide suggestions for the ligand design of synthesized FeS clusters. More information can be found in the Research Article by Y. Kitagawa and co-workers (DOI: 10.1002/ejic.202500016).\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 15","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.202581501","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural and Kinetics Studies of N^O-, O^N^O-, and N^N- Schiff Base Mn Complexes as Highly Active Catalysts in the Ring-Opening Polymerization of rac-Lactides","authors":"Mnqobi Zikode,&nbsp;Asanda Ngwenya,&nbsp;Tabea Becker,&nbsp;Sonja Herres-Pawlis,&nbsp;Stephen. O. Ojwach","doi":"10.1002/ejic.202500126","DOIUrl":"https://doi.org/10.1002/ejic.202500126","url":null,"abstract":"<p>A series of manganese complexes derived from (imino)phenol/pyridine proligands have been synthesized, structurally characterized and used as catalysts in the ring-opening polymerization (ROP) of <i>rac</i>-lactides (<i>rac</i>-LA). Reactions of MnCl₂·4H₂O salt with 2-[((2-hydroxyethyl)imino)methyl]phenol (<b>L1H</b>_<b>2</b>) afford a tetranuclear Mn(III) complex [Mn(<b>L1</b>)Cl]₄ (<b>Mn1</b>). Separately, treatment of MnCl₂·4H₂O with 2-[((2-methoxyethyl)imino)methyl]phenol (<b>L2H</b>) gave the mononuclear Mn(II) complex [Mn(<b>L2</b>)₂(CH₃OH)₂] (<b>Mn2</b>). Further, reactions of (imino)pyridine proligands ((E)-2-((pyridine-2-ylmethylene)amino)ethan-1-ol (<b>L3H</b>) and (E)-N-(2-methoxyethyl)-1-(pyrid-2-yl)methanimine (<b>L4</b>)) with MnCl₂·4H₂O afforded polynuclear Mn(II) complexes [Mn(<b>L3H</b>)Cl₂]₃ (<b>Mn3</b>) and [Mn(<b>L4</b>)Cl₂]₃ (<b>Mn4</b>), respectively. The molecular structure of <b>Mn1</b> established the tridentate binding mode of the dianionic alkoxy-(imino)phenol proligand ((<b>L1</b>^<b>2−</b>)) through the phenoxo and pendant-arm alkoxy-oxygen and the imine-nitrogen atoms. In contrast, the molecular structure of <b>Mn2</b> showed that the ether-(imino)phenol pro-ligand (<b>L2H</b>) is monoanionic (<b>L2</b>^<b>−</b>) and bidentately coordinated to the Mn(II) metal center through the phenoxo-oxygen and the imine-nitrogen atoms. The dinuclear complex <b>Mn3</b> contains a neutral N^N bidentately bound proligand (<b>L3H</b>). All the complexes (<b>Mn1</b>–<b>Mn4</b>) formed active catalysts in ROP of <i>rac</i>-LA with the propagation rate constant <i>k</i>_p of up to (4.25 ± 0.15) × 10⁻² L mol⁻¹ s⁻¹. The polymers obtained were atactic biased (<i>P</i>_r = 0.55–0.59), produced with moderate control over average-number molecular weights and were moderately dispersed (<i>Đ</i> up to 1.8) under melt conditions.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 19","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.202500126","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144614995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Selective Recognition Behavior of Arginine and Histidine Using an Anionic Luminescent Metal-Organic Material Stabilized by Cationic Amine: Steady State and Time-Resolved Luminescence Studies","authors":"Sayani Hui,&nbsp;Sahil Azam,&nbsp;Subhajit Dutta,&nbsp;Sudip Kumar Mondal,&nbsp;Partha Mahata","doi":"10.1002/ejic.202500042","DOIUrl":"https://doi.org/10.1002/ejic.202500042","url":null,"abstract":"<p>A new Eu-based metal-organic material, [Eu(CAM)₂(H₂O)] 0.5H₂Pip·H₂O, [CAM = chelidamate and H₂Pip = diprotonated piperazine], <b>1,</b> was synthesized by hydrothermal technique. Structure elucidation of compound <b>1</b> was done by single-crystal X-ray diffraction. The connectivity between Eu³⁺ ions and chelidamate ligands forms anionic dimeric metal-organic structures stabilized by interdimer O<span></span>H···O hydrogen bond interactions involving the free hydroxyl groups and carboxylate oxygen atoms. The O<span></span>H···O hydrogen bonds connect each dimeric unit with four other dimeric units to form a supramolecular 2D structure with rhombus grid topology. The 2D anionic hydrogen-bonded structures are further stabilized through N<span></span>H···O hydrogen bond interactions by involving piperazinediium ion to form an overall 3D supramolecular assembly. pH-dependent luminescence studies of compound <b>1</b> confirmed its stable nature in the pH range of 1–11. Luminescence turn-off behaviors of compound <b>1</b> were observed in the presence of two amino acids, for example, L-arginine (Arg) and L-histidine (His), in water. Luminescence decay processes and lifetime values confirmed that the quenching of luminescence of compound <b>1</b> by arginine is due to both static and dynamic quenching, but in the case of histidine, the quenching is purely static in nature.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 19","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144614996","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}

{"title":"Zeolitic Octahedral Metal Oxides for Catalysis","authors":"Zhuoyuan Chen,&nbsp;Zhenxin Zhang","doi":"10.1002/ejic.202500105","DOIUrl":"https://doi.org/10.1002/ejic.202500105","url":null,"abstract":"<p>Zeolitic octahedral metal oxides (ZOMOs) are crystalline microporous transition metal oxides, built from transition metal-oxygen clusters and inorganic linkers. The material shows both microporosity and redox property, which processes both advantages of zeolites and transition metal oxides. This concept outlines five ZOMO frameworks (ZOMO-1 to ZOMO-5) with tunable pore geometries and elemental diversity, enabling to tune the structure and chemical composition, which leads to tuning the catalytic activity of the materials. ZOMOs exhibit exceptional catalytic performance in selective oxidation, oxidative degradation, and H₂ evolution. Despite progress, there are still challenges in structure diversity and atomic-level structural control in the field of ZOMOs. Addressing these will advance ZOMOs as sustainable catalysts for energy and environmental applications.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 19","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144615486","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}

{"title":"Front Cover: Complexes of d- and f-metal Ions with a Redox-Active and Highly Symmetric Truxenone Ligand: Effect of Cations and Coordination on Distortions of Radical Anions and Singlet-Triplet Transitions in Dianions (Eur. J. Inorg. Chem. 14/2025)","authors":"Kira D. Krivenko,&nbsp;Alexander F. Shestakov,&nbsp;Maxim A. Faraonov,&nbsp;Alexey V. Kuzmin,&nbsp;Salavat S. Khasanov,&nbsp;Akihiro Otsuka,&nbsp;Hideki Yamochi,&nbsp;Hiroshi Kitagawa,&nbsp;Dmitri V. Konarev","doi":"10.1002/ejic.202581401","DOIUrl":"https://doi.org/10.1002/ejic.202581401","url":null,"abstract":"<p><b>The Front Cover</b> shows truxenone (Tr), which has high C_3h symmetry and degenerated LUMO. It forms salts and complexes. Calculations predict Jahn–Teller distortions for Tr^⋅− that are enhanced by the asymmetric approach of Cp*₂Co⁺ to Tr^⋅−. The dianions should have a triplet state, but the asymmetric approach of Cs⁺ to the oxygen atoms of Tr²⁻ stabilizes the singlet ground state. Radical anions of Tr^⋅− coordinate with Tb^III(TMHD)₃ and Mn^II(acac)₂ providing asymmetric spin density localization on the coordinated oxygen atom and strong magnetic exchange of the ligand and paramagnetic metal spins. More information can be found in the Research Article by D. V. Konarev and co-workers (DOI: 10.1002/ejic.202400760).\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 14","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.202581401","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144131513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cover Feature: Photocatalytic Efficiency Improvement of Porous TiO2 Immobilized by a Pd-Te Complex for H2 Production by Water Splitting (Eur. J. Inorg. Chem. 13/2025)","authors":"Camila N. Cechin,&nbsp;Tanize Bortolotto,&nbsp;Andressa Lunardi,&nbsp;Renaldo M. da Silva Jr.,&nbsp;Robert A. Burrow,&nbsp;Bernardo A. Iglesias,&nbsp;Ernesto S. Lang,&nbsp;Bárbara Tirloni,&nbsp;Shirley Nakagaki","doi":"10.1002/ejic.202581302","DOIUrl":"https://doi.org/10.1002/ejic.202581302","url":null,"abstract":"<p><b>The Cover Feature</b> shows the preparation of solids based on a Pd--Te complex, [Pd₂(μ-TePh)₂(bipy)₂](PF₆)₂, immobilized over porous TiO₂ and over commercial TiO₂ to be used as photocatalysts for H₂ production by water splitting under sunlight. All the solids enhanced H₂ production compared to pure titania supports by up to 69-fold. This outcome inspires the investigation of metal complexes combined with semiconductors to improve their photocatalytic ability for H₂ production. More information can be found in the Research Article by S. Nakagaki and co-workers (DOI: 10.1002/ejic.202400806).\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 13","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.202581302","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Front Cover: Heterometallic Coordination Compounds with Amino-Acid Dithiocarbamate Ligands (Eur. J. Inorg. Chem. 13/2025)","authors":"Dr. Phil Köhler","doi":"10.1002/ejic.202581301","DOIUrl":"https://doi.org/10.1002/ejic.202581301","url":null,"abstract":"<p><b>The Front Cover</b> illustrates the use of amino-acid dithiocarbamate ligands as building blocks for heterometallic coordination polymers. As outlined in the Review by P. Köhler (DOI: 10.1002/ejic.202500007), these ligands form stable all-<i>S</i> coordinate complexes with different transition metal ions, and the resulting products can act as metalloligands for coordination of a second metal ion due to their free carboxylate groups. The illustration shows the assembly of dithiocarbamato-carboxylate metalloligands and oxophilic metal ions in a modular fashion, analogous to interlocking toy building bricks.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 13","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.202581301","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Expanding the Chemical Space of Allyl Palladates with Anticancer Properties","authors":"Alessia Schiavo,&nbsp;Giacomo Baio,&nbsp;Francis Bru,&nbsp;Irene Guerra,&nbsp;Victoria Mechrouk,&nbsp;Thierry Achard,&nbsp;Sara Baldissin,&nbsp;Stéphane Bellemin-Laponnaz,&nbsp;Catherine S. J. Cazin,&nbsp;Cristina Tubaro,&nbsp;Fabiano Visentin,&nbsp;Isabella Caligiuri,&nbsp;Flavio Rizzolio,&nbsp;Steven P. Nolan,&nbsp;Thomas Scattolin","doi":"10.1002/ejic.202500146","DOIUrl":"https://doi.org/10.1002/ejic.202500146","url":null,"abstract":"<p>Allyl palladates are emerging as promising anticancer agents due to their unique mechanisms of action, including thioredoxin reductase inhibition and immunogenic cell death activation. However, their lack of selectivity toward cancer cells has hindered their therapeutic potential. Herein, a library of ten novel allyl palladates featuring diverse azolium ligands is synthesized via a solvent-free approach, including 1) ring-expanded azolium salts; 2) azolium salts functionalized with phosphonium, thioether, selenoether, or sulfoxide groups; 3) 12-membered cyclic alkyl groups; or 4) bulky or methoxy-functionalized aryl groups. The newly synthesized compounds are tested against A2780, A2780cis, and U87 cancer cell lines, as well as MRC-5 non-cancerous cells. Results reveal a general excellent cytotoxicity (in the micromolar or submicromolar range), with allyl palladates <b>2c–d</b> showing the greatest activity but limited selectivity. Compounds <b>2f</b> and <b>2h</b>, however, demonstrate improved selectivity toward cancer cells, highlighting the influence of thioether and selenoether functional groups.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 18","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.202500146","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144472843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation and Reactions of (Hydrosilyl)diarylborane","authors":"Ryota Koyanagi,&nbsp;Mutsuki Tanaka,&nbsp;Yuki Nonaka,&nbsp;Kyoka Mori,&nbsp;Shogo Morisako,&nbsp;Yohsuke Yamamoto,&nbsp;Atsushi Kawachi","doi":"10.1002/ejic.202500068","DOIUrl":"https://doi.org/10.1002/ejic.202500068","url":null,"abstract":"<p>(Hydrodimesitysilyl)lithium (<b>2</b>) is prepared via the Sn–Li exchange of (hydrodimesitylsilyl)trimethylstannane (<b>3</b>) with <i>n</i>-BuLi and it reacts with chlorosilanes and fluorodimesitylborane to afford hydrodisilanes <b>4</b>–<b>7</b> and hydrosilylborane <b>1</b>, respectively. Hydrosilylborane <b>1</b> is isolated as yellow crystals and characterized using NMR spectroscopy, UV–vis spectroscopy, fluorescence spectroscopy, and X-ray crystallography. DFT calculations of hydrosilylborane <b>1</b> and its structural data reveal unique Si<span></span>H and Si<span></span>B bond characteristics. Finally, the reactions of hydrosilylborane <b>1</b> with nucleophiles, such as alcohols and alkyllithiums, are investigated.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 18","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144472828","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}