Transition Metal Chemistry最新文献_第6页

Competition of Au-Au, Ag-Ag, and Au-Ag interactions in formation of [AuAgAuAg] rhombic unit: difference and similarity between ClO4ˉ and BF4ˉ anions Au-Au、Ag-Ag和Au-Ag相互作用在[AuAgAuAg]方阵单元形成中的竞争：ClO4 +和BF4 +阴离子的异同

IF 1.7 4区化学

Transition Metal Chemistry Pub Date : 2026-04-13 DOI: 10.1007/s11243-026-00729-y

Jiyeong Song, Dongwon Kim, Young-A Lee

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Exploring the anticancer potential of amphiphilic dendritic ligands of homoleptic ruthenium(II) complexes 探索同感钌（II）配合物的两亲性树突状配体的抗癌潜力

IF 1.7 4区化学

Transition Metal Chemistry Pub Date : 2026-04-13 DOI: 10.1007/s11243-026-00733-2

Liju Raju, Eswaran Rajkumar

{"title":"Exploring the anticancer potential of amphiphilic dendritic ligands of homoleptic ruthenium(II) complexes","authors":"Liju Raju, Eswaran Rajkumar","doi":"10.1007/s11243-026-00733-2","DOIUrl":"10.1007/s11243-026-00733-2","url":null,"abstract":"<div>The anticancer activity of ruthenium(II) complexes can be enhanced by incorporating the amphiphilic ligands that possess higher solubility, cellular intake, and targeted drug delivery in comparison to other complexes. Homoleptic ruthenium(II) complexes of amphiphilic poly (aryl ether) dendrimer based bipyridine ligands were prepared and their anticancer activity was evaluated against three cancer cell lines (A549 lung adenocarcinoma cell line, MDA MB 231 human breast epithelial adenocarcinoma cell lines, and HepG2 liver cancer cell). The selectivity indices of complexes against the cancer cell lines infers that RuG03 exhibits consistent and greater selectivity across all the three cell lines, while RuG13 demonstrates notable potency against HepG2 cells, suggesting its potential for liver cancer treatment. Fluorescence staining assays, AO − EB, DAPI, cell death analysis by PI staining, reactive oxygen species (ROS), mitochondrial membrane potential (MMP) assays and DNA ladder assay were performed for the complexes to understand the anticancer mechanism. The results indicates that these complexes, induces apoptosis in cancer cells through action of DNA and ROS-mediated mitochondrial dysfunction pathways. Molecular docking analysis with DNA and anti-apoptotic Bcl-2 protein supports the experimental observations.<h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture>The alternative text for this image may have been generated using AI.</div></div></figure></div></div>","PeriodicalId":803,"journal":{"name":"Transition Metal Chemistry","volume":"51 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147737617","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

Exploring the chemical kinetics of rare earth element separation under thermal conditions 探讨热条件下稀土元素分离的化学动力学

IF 1.7 4区化学

Transition Metal Chemistry Pub Date : 2026-04-10 DOI: 10.1007/s11243-026-00734-1

Nofriady Aziz, Imam Abdurrosyid, Yogi Priasetyono, Agus Sumaryanto, Badra Sanditya Rattyananda, Maharani Kusumaningrum, Zeni Ulma, Dian Adi Prastowo, Sri Wahyuningsih, Siti Aidah, Pradika Annas Kuswanto, Muhamad Hasannudin Bisri, Intan Nurhimawati, Muhammad Faiz Nurhadi, A. Alfahrozin, R. Mohammad Subekti, Dhita Ariyanti, Muhammad Rizky Romadhon, Satria Agung Saputra, Mochammad Choiril Muna

{"title":"Exploring the chemical kinetics of rare earth element separation under thermal conditions","authors":"Nofriady Aziz, Imam Abdurrosyid, Yogi Priasetyono, Agus Sumaryanto, Badra Sanditya Rattyananda, Maharani Kusumaningrum, Zeni Ulma, Dian Adi Prastowo, Sri Wahyuningsih, Siti Aidah, Pradika Annas Kuswanto, Muhamad Hasannudin Bisri, Intan Nurhimawati, Muhammad Faiz Nurhadi, A. Alfahrozin, R. Mohammad Subekti, Dhita Ariyanti, Muhammad Rizky Romadhon, Satria Agung Saputra, Mochammad Choiril Muna","doi":"10.1007/s11243-026-00734-1","DOIUrl":"10.1007/s11243-026-00734-1","url":null,"abstract":"<div>Rare earth elements (REEs) are essential materials comprising 17 elements with broad applications in advanced technologies, especially in nuclear and industrial sectors. Dysprosium (Dy), for example, is used as a dopant in thermoluminescent dosimeter (TLD) crystals for radiation monitoring. REEs naturally occur in minerals such as monazite and xenotime, generally forming complex compounds. Previous research has emphasized purification, with precipitation considered an important preliminary step for element separation. This study investigates the precipitation of Praseodymium (Pr), Dysprosium (Dy), Neodymium (Nd), Cerium (Ce), and Lanthanum (La) at varying temperatures and times to determine rate constants and activation energies. The results showed that optimal conditions for Pr, Dy, and Nd precipitation were 60°C for 60 min, while Ce and La reached optimal precipitation at 40°C and 30°C, respectively, at 60 min. Kinetic analysis indicated that Pr, Ce, Nd, and La followed zero-order kinetics, whereas Dy followed first-order kinetics. Activation energies varied considerably, with Ce exhibiting the highest at 72.010 kJ/mol and Nd the lowest at 6.474 kJ/mol. This research presents a comparative kinetic analysis of multiple REEs under controlled temperature variation, offering valuable data for developing scalable and efficient REE recovery systems aligned with industrial innovation efforts.</div>","PeriodicalId":803,"journal":{"name":"Transition Metal Chemistry","volume":"51 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147643086","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}

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1H-Phenanthro[9,10-d]imidazole functionalized iron(ii, iii)oxide nanoparticle for magnetically recoverable nanocatalyst for monoalkylation of cyclam h -菲菲[9,10-d]咪唑功能化氧化铁纳米颗粒用于环环酰胺单烷基化的磁性可回收纳米催化剂

IF 1.7 4区化学

Transition Metal Chemistry Pub Date : 2026-04-06 DOI: 10.1007/s11243-026-00732-3

Uğur Taşdemir, Aslıhan Yılmaz Obalı

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A simple ninhydrin–hydrazone probe for highly selective and sensitive colorimetric detection of Cu2+ ions 用于高选择性、高灵敏度比色检测Cu2+离子的简单茚三酮-腙探针

IF 1.7 4区化学

Transition Metal Chemistry Pub Date : 2026-03-31 DOI: 10.1007/s11243-026-00730-5

Vanie V, Kavitha R

{"title":"A simple ninhydrin–hydrazone probe for highly selective and sensitive colorimetric detection of Cu2+ ions","authors":"Vanie V, Kavitha R","doi":"10.1007/s11243-026-00730-5","DOIUrl":"10.1007/s11243-026-00730-5","url":null,"abstract":"<div>Copper ions (Cu2+) are essential in numerous biological and environmental processes, yet their excess can lead to severe toxicity. Hence, developing selective and sensitive colorimetric sensors for Cu2+ detection remains a critical research pursuit. In this study, a newly synthesized Nin–PyHz-based chemosensor, 2-(2-(pyridin-2-yl)hydrazono)-1H-indene-1,3(2 H)-dione (L), was explored for its selective Cu2+ recognition ability. The sensor exhibited a distinct optical response exclusively toward Cu2+ ions, while other metal ions and anions caused negligible interference. The free ligand showed an absorption band at 382 nm, which shifted to 434 nm upon Cu2+ binding, accompanied by a perceptible color change, indicating complex formation. This bathochromic shift arises from modulation of the intramolecular charge transfer (ICT) process upon coordination with Cu2+ ions. The binding constant, derived from the Benesi–Hildebrand relation, was found to be 1.83 × 105 M⁻1, and the limit of detection (LOD) was determined as 0.69 µM. Job’s plot confirmed a 1:1 stoichiometric interaction between L and Cu2+ ions. The sensor exhibited optimal performance in the pH range of 6.0–8.0, highlighting its excellent selectivity and applicability for Cu2+ detection in real or complex samples.</div>","PeriodicalId":803,"journal":{"name":"Transition Metal Chemistry","volume":"51 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147607341","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

A new mononuclear Ni(II) Schiff base complex: synthesis, structural insights, anti-leishmanial screening, DFT and docking studies 一种新的单核Ni（II）希夫碱配合物：合成、结构观察、抗利什曼筛选、DFT和对接研究

IF 1.7 4区化学

Transition Metal Chemistry Pub Date : 2026-03-31 DOI: 10.1007/s11243-026-00728-z

Sudipta Chakraborty, Nayim Sepay, Priyam Biswas, Rituparna Biswas

{"title":"A new mononuclear Ni(II) Schiff base complex: synthesis, structural insights, anti-leishmanial screening, DFT and docking studies","authors":"Sudipta Chakraborty, Nayim Sepay, Priyam Biswas, Rituparna Biswas","doi":"10.1007/s11243-026-00728-z","DOIUrl":"10.1007/s11243-026-00728-z","url":null,"abstract":"<div>A new Ni(II) monomer [Ni(L)2(NCS)2] has been synthesized using a Schiff base ligand (HL = 2-[(3-Dimethylaminopropylimino)-methyl]-phenol) and characterized by X-ray crystallography, FT-IR, and UV-Vis. spectroscopic techniques. Single crystal X-ray analysis reveals that it is a mononuclear bis-ligand complex with two axially coordinated NCS– co-ligands. The zwitterionic Schiff base ligands are chelated to the central Ni atom in trans fashion through imine N atoms and phenoxido O atoms with N–Ni–O chelating angles of 87.94(4)°. The octahedral coordination of Ni(II) is completed by two axial thiocyanate anions bonded through their nitrogen end with Ni-N bond distances of 2.103(3)Å. For an in vitro antileishmanial study, the compound was screened against L. donovani parasites, and it was found that the compound has moderate anti-promastigote activity with an IC50 of 70.04 ± 1 µg/mL when compared to the reference drug Miltefosine. It reasonably deescalated intracellular parasites from the leishmania-infected macrophages with appreciably low toxicity towards RAW 264.7 cells.CC50 and SI index have also been calculated for the test compound and the reference drug. Molecular docking analysis has been executed to find information regarding the interactions with the target protein PEX5. The nature and the strength of the intermolecular interactions have evaluated by means of a molecular electrostatic potential map. Density functional theory (DFT) analysis predicted the compound’s optimized geometry and HOMO-LUMO band gap. DFT computation and docking studies are in good agreement with the most relevant biological findings. This compound can be contemplated as a leading scaffold having the prospect for further molecular modifications before considering it as a potential antileishmanial candidate.</div>","PeriodicalId":803,"journal":{"name":"Transition Metal Chemistry","volume":"51 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147607259","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}

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Construction of SnS₂/SnO₂ hierarchical heterostructures based on solid-phase synthesis and their enhanced photocatalytic performance mechanism 基于固相合成的SnS₂/SnO₂层次化异质结构的构建及其增强光催化性能的机理

IF 1.7 4区化学

Transition Metal Chemistry Pub Date : 2026-03-31 DOI: 10.1007/s11243-026-00727-0

Chong Wang, Jieting Zhao, Nan Wang, Jingtao Wu, Baoyan Liang

{"title":"Construction of SnS₂/SnO₂ hierarchical heterostructures based on solid-phase synthesis and their enhanced photocatalytic performance mechanism","authors":"Chong Wang, Jieting Zhao, Nan Wang, Jingtao Wu, Baoyan Liang","doi":"10.1007/s11243-026-00727-0","DOIUrl":"10.1007/s11243-026-00727-0","url":null,"abstract":"<div>\u0000 \u0000 A SnS₂/SnO₂ heterojunction composite was successfully synthesized via a facile low-temperature solid-state reaction using novel tin hydroxychloride as the precursor and S powderas the reactant. Characterization results demonstrated that XRD patterns confirmed the coexistence of both SnS₂ and SnO₂ phases in all samples, with varying sulfur content showing no significant influence on their phase composition. HRTEM analysis clearly revealed well-bonded heterojunction interfaces between the two phases. N₂ adsorption-desorption measurements indicated the material possessed a moderate specific surface area of 59.50 m²/g with a well-developed mesoporous structure. UV-Vis DRS spectra showed the composite had a tunable narrow band gap ranging from 1.93 to 2.08 eV and enhanced visible-light absorption capability. XPS analysis further revealed the presence of trace Sn²⁺ defects and oxygen vacancies in the material. Photocatalytic performance tests showed that the samples exhibited excellent photocatalytic activity, with the optimized sample achieving complete degradation of methyl orange (MO) within 6 min under visible-light irradiation, corresponding to a degradation rate constant of approximately 0.715 min⁻¹. Free radical trapping experiments confirmed that superoxide radicals (•O₂⁻) and hydroxyl radicals (•OH) served as the primary active species in the degradation process, with the addition of their scavengers reducing the degradation efficiency to 11% and 44%, respectively. Based on these findings, a corresponding photocatalytic degradation mechanism was proposed.\u0000 </div>","PeriodicalId":803,"journal":{"name":"Transition Metal Chemistry","volume":"51 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147607340","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}

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Design of [Ag2(dicarboxylate)(py-R)x] coordination polymers [Ag2（二羧酸盐）（py-R）x]配位聚合物的设计

IF 1.7 4区化学

Transition Metal Chemistry Pub Date : 2026-03-30 DOI: 10.1007/s11243-026-00731-4

Daniil K. Zhuravlev, Ilya V. Korolkov, Artem B. Kuznetsov, Maxim N. Sokolov, Pavel A. Abramov

{"title":"Design of [Ag2(dicarboxylate)(py-R)x] coordination polymers","authors":"Daniil K. Zhuravlev, Ilya V. Korolkov, Artem B. Kuznetsov, Maxim N. Sokolov, Pavel A. Abramov","doi":"10.1007/s11243-026-00731-4","DOIUrl":"10.1007/s11243-026-00731-4","url":null,"abstract":"<div>\u0000 \u0000 This contribution reports a new route to silver(I) based coordination polymers (CPs) with dicarboxylate linkers and pyridines (py-R) as auxiliary ligands. First of all, silver(I) terephthalate ([Ag2{C6H4(COO)2}]n, 1), silver(I) maleate ([Ag2{C2H2(COO)2}]n, 2) and silver(I) malate ([Ag2{C2H3(OH)(COO)2}]n, 3) were prepared. Next, they were dissolved in neat pyridine or picoline. Colorless crystals of CPs formulated as [Ag2(4-Me-py)3{C6H4(COO)2}]n (4), [Ag2(2-Me-py)4{C6H4(COO)2}]n (5) and molecular complex [Ag4(2-Me-py)6{C2H2(COO)2}2] (6) were isolated from the solutions. Addition of 4,4’-bipyridine (bpy) into the solution of silver(I) malate in pyridine produced crystals of a two-dimensional coordination polymer formulated as [Ag2(bpy)2{C2H3(OH)(COO)2}]n·2nH2O (7). Both 4 and [Ag2(2-Me-py)4{C6H4(COO)2}]n (5) are luminescent with a blue-green emission.\u0000 </div>","PeriodicalId":803,"journal":{"name":"Transition Metal Chemistry","volume":"51 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147607112","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}

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Niobium-catalyzed reactions to add value to renewable raw material: a review of unsupported and supported catalysts 铌催化反应对可再生原料的增值：非负载型和负载型催化剂的综述

IF 1.7 4区化学

Transition Metal Chemistry Pub Date : 2026-03-07 DOI: 10.1007/s11243-026-00721-6

Daniel Carreira Batalha, Márcio José da Silva

{"title":"Niobium-catalyzed reactions to add value to renewable raw material: a review of unsupported and supported catalysts","authors":"Daniel Carreira Batalha, Márcio José da Silva","doi":"10.1007/s11243-026-00721-6","DOIUrl":"10.1007/s11243-026-00721-6","url":null,"abstract":"<div>A wide range of niobium-based materials is described in the literature as efficient catalysts. The versatility of niobium catalysts prepared by different synthesis methods results in diverse compounds with unique characteristics that are active in producing high-added value compounds such as agrochemicals, fragrances, solvents, and building blocks in organic synthesis. Moreover, niobium catalysts have been used to convert biomass resources to biofuels. In this review, recent advances achieved in niobium-catalyzed reactions to add value to renewable feedstocks are discussed. The main goal was to explore how the physicochemical properties of niobium-based solid materials, prepared through various methods, influence their performance in acid-catalyzed reactions and oxidative processes. This understanding can help meet the industry’s increasing demand for sustainable and efficient processes to produce high-value chemicals from inexpensive, abundant, and renewable raw materials. The review covers processes using unsupported niobium catalysts (such as niobium oxide, phosphate, and sulfated forms) and solid-supported niobium catalysts (such as mesoporous silica, zeolite, carbon, alumina, and mordenite).<h3>Graphical abstract</h3>Niobium catalyzed biomass conversion to platform molecules.<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":803,"journal":{"name":"Transition Metal Chemistry","volume":"51 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11243-026-00721-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147362815","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}

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Insight into hydrogen-bonding interactions in a water bridged rhomboid assembly based on resorcinol bridged dinuclear copper (II)-acetate complex: DFT and QTAIM analyses 基于间苯二酚桥接双核铜(II)-乙酸配合物的水桥接菱形组件中氢键相互作用的洞察：DFT和QTAIM分析

IF 1.7 4区化学

Transition Metal Chemistry Pub Date : 2026-03-07 DOI: 10.1007/s11243-026-00726-1

Pampa Guha, Pradip Bhunia, Ayan Mukherjee, Manish Das, Antonio Frontera

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