Transition Metal Chemistry最新文献

Four novel Co/Cu-based electrochemical sensors with pyrazole ligand for detection of uric acid, dopamine, and acetaminophen 四种新型Co/ cu基吡唑配体电化学传感器用于检测尿酸、多巴胺和对乙酰氨基酚

IF 1.7 4区化学

Transition Metal Chemistry Pub Date : 2026-05-08 DOI: 10.1007/s11243-026-00738-x

Sheng Long, Wei Yao, Bang Yang, Ru Yang, Yunhui Feng, Baotong Xu, Enjun Gao, Vladimir Fedin

{"title":"Four novel Co/Cu-based electrochemical sensors with pyrazole ligand for detection of uric acid, dopamine, and acetaminophen","authors":"Sheng Long, Wei Yao, Bang Yang, Ru Yang, Yunhui Feng, Baotong Xu, Enjun Gao, Vladimir Fedin","doi":"10.1007/s11243-026-00738-x","DOIUrl":"10.1007/s11243-026-00738-x","url":null,"abstract":"<div>Benefits from the pyrazole ligands 4, 5-bis(pyrazole-1-yl) phthalic acid (C14N4O4H10), Co(NO)3·6H2O and Cu(NO)3·3H2O, four 3D supramolecular compounds ([Co(C14N4O4H9)2(H2O)2]∙2H2O (1), [Co2(C16N4O4H13)2(CH3COO)2]·C2H5OH (2), [Co(C14N4O4H9)(CH3COO)(C3H7OH)]·C3H7OH (3)) and [Cu2(C14N4O4H9)2(H2O)2]∙6H2O (4) were synthesized. Among them, the ethanol solution in compound 2 can be used as both solvent and reactant to form 4, 5-bis(pyrazole-1-yl) ethyl phthalate with 4, 5-bis (pyrazole-1-yl) phthalate (C16N4O4H14), which is directly synthesized by a one-step method. This study reports a one-step synthesis method for ester compounds, opening new avenues for the synthesis of ester compounds using solvent. Compounds 1–4 were doped with graphite to prepare a series of composite carbon paste electrodes, and their electrochemical sensing performance toward uric acid, dopamine, and acetaminophen was investigated. Among the four compounds, the modified electrode prepared using 1 and 4 exhibited excellent electrochemical sensing performance, high sensitivity, exceptional selectivity, and remarkable recyclability for detecting uric acid (pH = 7), dopamine (pH = 4) and acetaminophen (pH = 7) in PBS solution.</div>","PeriodicalId":803,"journal":{"name":"Transition Metal Chemistry","volume":"51 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829725","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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Retraction Note: Synthesis, optical properties, and enhanced photocatalytic degradation of (Mg, Cu) co-doped TiO2 nanoparticles under ultraviolet light irradiation 摘要：紫外光照射下（Mg, Cu）共掺杂TiO2纳米粒子的合成、光学性质及增强光催化降解

IF 1.7 4区化学

Transition Metal Chemistry Pub Date : 2026-05-04 DOI: 10.1007/s11243-026-00737-y

H. Mansour, M. Madani, Fatemah M. Barakat, K. Omri, B. Bader Alyahya, F. Alharbi, S. Gouadria

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Quaterpyridine-bridged binuclear manganese(I) carbonyl complexes: comparison of electrocatalytic H2 evolution with mononuclear analogues 季铵盐桥接双核锰(I)羰基配合物：电催化析氢与单核类似物的比较

IF 1.7 4区化学

Transition Metal Chemistry Pub Date : 2026-04-29 DOI: 10.1007/s11243-026-00735-0

Dai Oyama, Junya Ogura, Ryosuke Watanabe, Tsugiko Takase

{"title":"Quaterpyridine-bridged binuclear manganese(I) carbonyl complexes: comparison of electrocatalytic H2 evolution with mononuclear analogues","authors":"Dai Oyama, Junya Ogura, Ryosuke Watanabe, Tsugiko Takase","doi":"10.1007/s11243-026-00735-0","DOIUrl":"10.1007/s11243-026-00735-0","url":null,"abstract":"<div>The hydrogen evolution reaction, which reduces protons to molecular hydrogen, has attracted significant attention as an efficient method for hydrogen production. In this context, manganese(I) carbonyl complexes have been studied as electrochemical proton reduction catalysts because of their low cost and structural similarity to the active sites of iron–iron hydrogenases. In this work, binuclear manganese(I) carbonyl complexes bridged by quaterpyridine (containing two 2,2’-bipyridyl frameworks) were synthesized and their structure–reactivity relationships were investigated. The proton nuclear magnetic resonance spectroscopy and structural determination suggested that the primary coordination spheres of these dimers possess identical geometries in both solid and solution states. Additionally, electrochemical measurements were performed in the presence of protons using a solvent-coordinated dimer and its corresponding monomer to investigate the catalytic activity for proton reduction. The mono- and binuclear complexes exhibited different redox properties: the dimer exhibited inferior catalytic parameters for proton reduction compared with the corresponding monomer. These results suggest that the stability of the reduced species greatly affects the catalytic activity, and that multinucleation does not necessarily lead to improved catalytic performance. This work therefore provides essential information that should assist the design of novel manganese(I) catalysts for the proton reduction reaction.</div>","PeriodicalId":803,"journal":{"name":"Transition Metal Chemistry","volume":"51 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11243-026-00735-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147754485","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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Precise pump control of SiO2 shell thickness enables systematic comparison of SERS and SEECL performance in core–shell nanostructures 精确的泵控制SiO2外壳厚度，可以系统地比较核壳纳米结构中的SERS和SEECL性能

IF 1.7 4区化学

Transition Metal Chemistry Pub Date : 2026-04-21 DOI: 10.1007/s11243-026-00736-z

Xueyuan Li, Cong Chen, Xinyao Yang, Dean Fang

{"title":"Precise pump control of SiO2 shell thickness enables systematic comparison of SERS and SEECL performance in core–shell nanostructures","authors":"Xueyuan Li, Cong Chen, Xinyao Yang, Dean Fang","doi":"10.1007/s11243-026-00736-z","DOIUrl":"10.1007/s11243-026-00736-z","url":null,"abstract":"<div>This study introduces a precise peristaltic-pump-based strategy to control SiO2 shell thickness, enabling a comparative evaluation of both surface enhanced Raman spectroscopy (SERS) and surface enhanced electrochemiluminescence (SEECL) performance in the novel Ag/PATP@SiO2-NH2/CdS core–shell nanostructure. A meticulous multi-step synthesis was employed, wherein the SiO2 shell thickness was precisely regulated from 2.2 to 24.2 nm by controlling the infusion rate (0.4 mL/min) and dosage of tetraethoxysilane (TEOS) using a peristaltic pump. This allowed us to systematically investigate the modulation of both SERS and SEECL signals by the engineered shell thickness. The results reveal a strong optical enhancement dependence on the SiO2 shell thickness: a 5.5 nm shell yielded an optimal SERS relative enhancement factor of 147 for the p, p’-dimercaptoazobenzene (DMAB) molecule converted from p-aminothiophenol (PATP), while a 10.3 nm shell provided an optimal SEECL relative enhancement factor of 88 for Ag/PATP@10.3 nm SiO2-NH2/CdS, compared to Ag/PATP@0 nm SiO2-NH2/CdS. These enhancement effects are attributable to the precisely engineered SiO2 shell: its thickness optimizes the intensity and distribution of the localized surface plasmon resonance (LSPR) of the Ag core, thereby maximizing the SERS signal; concurrently, it provides an optimal separation for the SEECL process, effectively balancing the electromagnetic enhancement and the quenching effects induced by Förster resonance energy transfer. This work establishes a precise pump-based methodology for SiO2 shell thickness control and provides critical insights for designing advanced multifunctional plasmonic nanoplatforms.</div>","PeriodicalId":803,"journal":{"name":"Transition Metal Chemistry","volume":"51 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147738037","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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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

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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}

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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}

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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}

引用次数: 0