Inorganica Chimica Acta最新文献

{"title":"Molecular and electronic structure of 5-coordinated [Fe(CO)₄(X₂)] complexes: A quantum chemical study","authors":"Murugiah Vishwanath ,&nbsp;Rajendran Rajaram ,&nbsp;Jisha Mary Thomas ,&nbsp;Velankanni Nandhakumar ,&nbsp;Thayalaraj Christopher Jeyakumar","doi":"10.1016/j.ica.2025.122879","DOIUrl":"10.1016/j.ica.2025.122879","url":null,"abstract":"<div><div>Quantum mechanical DFT calculations were performed on Fe(CO)₅ and for the axial and equatorial isomers of 5-coordinated [Fe(CO)₄(X₂)] (where X = N, P, As, and Sb) complexes. The equatorially substituted complexes of 5-coordinated [Fe(CO)₄(X₂)] are more stable than the axially substituted complexes, as seen from their energy values. These complexes were further studied to understand their bonding nature using results from Natural population analysis (NPA) and energy decomposition analysis (EDA) calculations. The Wiberg bond indices (WBI) analysis provides the bond index of the bond between Fe and X₂. The Frontier molecular orbital (FMO) studies show these complexes have a HOMO-LUMO energy gap in the values ranging from 1.99 to 5.04 eV, which is less than that of [Fe(CO)₅]. From the Natural bond order (NBO) analysis, the contribution of the X_α-atom is smaller in the σ bond formation compared to X_β in P₂, As₂, and Sb₂. Similar contributions are seen with the carbonyl group (in the Fe<img>C bond), although the contribution of the carbon atom is larger than that of the X atom.</div></div>","PeriodicalId":13599,"journal":{"name":"Inorganica Chimica Acta","volume":"588 ","pages":"Article 122879"},"PeriodicalIF":3.2,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144907362","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":"Advances in coumarin-linked Schiff base for fluorometric and colorimetric sensing of toxic metal ions (Hg2+, Pb2+, Cd2+): a critical review","authors":"Samreen Azhar,&nbsp;Md. Zafer Alam,&nbsp;Alimuddin,&nbsp;Salman A. Khan","doi":"10.1016/j.ica.2025.122875","DOIUrl":"10.1016/j.ica.2025.122875","url":null,"abstract":"<div><div>The detection of toxic heavy metal ions is crucial due to their significant environmental and biological impact. Fluorescent Schiff base chemosensors derived from coumarin have gained attention for their excellent photophysical properties, high selectivity, sensitivity. This review explores recent advancements in coumarin-based Schiff base fluorescent sensors for detecting Hg²⁺, Pb²⁺, and Cd²⁺ ions, focusing on their structural design, sensing mechanisms, fluorescence response, and applications. Challenges and future prospects are also discussed. This review involving different synthesis methods and evaluated for its ability to detect Hg²⁺, Pb²⁺, and Cd²⁺, demonstrating distinct colorimetric and fluorometric responses upon metal ion binding, along with significant absorption and emission shifts. It showed a low detection limit (LOD) and strong binding affinity, with a 1:1 or 2:1 or 1:2 stoichiometry for Hg²⁺, Cd²⁺ and Pb²⁺ ions. The observed color highlights its potential as a cost-effective and efficient chemosensor for environmental and biological applications.</div></div>","PeriodicalId":13599,"journal":{"name":"Inorganica Chimica Acta","volume":"588 ","pages":"Article 122875"},"PeriodicalIF":3.2,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144907361","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":"Comparative bifunctionality of acetylacetonato versus bipyridyl CoII/CoIII/PtII complexes: structural study, non-linear optics and biomimetic activity","authors":"Ria Sanyal ,&nbsp;Shabnam Sultana ,&nbsp;Tomasz Sierański ,&nbsp;Dileep Ramakrishna ,&nbsp;Giorgia Confalonieri ,&nbsp;Srinu Tothadi ,&nbsp;Shyamal Kumar Chattopadhyay ,&nbsp;Supriyo Saha ,&nbsp;Pradip Dey ,&nbsp;K.B. Manjunatha ,&nbsp;Ennio Zangrando","doi":"10.1016/j.ica.2025.122876","DOIUrl":"10.1016/j.ica.2025.122876","url":null,"abstract":"<div><div>Four mononuclear metal-complexes [Co^II(acac)₂(H₂O)₂] (<strong>Co-1</strong>), [Co^III(acac)₃] (<strong>Co-2</strong>), [Co^III(Me₂bpy)₂(CO₃)](Cr₂O₇)_0.5.4H₂O (<strong>Co-3</strong>) and [Pt(acac)₂] (<strong>Pt-1</strong>), (where acac = acetylacetonate anion and Me₂bpy = 5,5’-dimethyl-2,2’-bipyridine) have been synthesized and structurally characterized. The structures of <strong>Co-1</strong>, <strong>Co-2</strong> and <strong>Co-3</strong> have been confirmed by X-ray single crystal analysis. Of [Co^III(acac)₃], beside the structure recurrently reported (<strong>Co-2a</strong>), we describe a polymorph form of this complex with four molecules in the asymmetric unit still crystallizing in space group <em>P</em>2₁/c (<strong>Co-2b</strong>). Electrochemical studies of the complexes provide insights on their redox properties in DMF. The most predominant electronic transitions have been assigned by TD-DFT calculations using Gaussian09 rev. E.01. Hirshfeld surface fingerprints revealed distinct patterns of intermolecular interactions across the studied compounds as a function of ligand and metal-ion property and reflect the subtle changes in crystal packing arrangements upon complex formation. XRPD and Rietveld refinement confirm their bulk phase purity. Measurement of nonlinear absorption and nonlinear optical transmission by open aperture Z-scan technique using Q-switched Nd:YAG 532 nm laser demonstrate that <strong>Pt-1</strong> exhibits strong nonlinear response with 3PA coefficient (γ) = 8×10^-24 m³/W² although Me₂bpy ligand shows better nonlinear optical profile than Hacac molecule. The complexes behave as biomimetic functional models of the copper-containing oxidase phenoxazinone synthase (PHS) with <em>k</em>_cat values in the order <strong>Co-1</strong>&gt;<strong>Co-3</strong>&gt;<strong>Co-2</strong>&gt;<strong>Pt-1</strong>. Our results highlight the key features of structure-property relationship in the bifunctional behaviour of acac and bpy complexes with detailed comparisons from recent literature.</div></div>","PeriodicalId":13599,"journal":{"name":"Inorganica Chimica Acta","volume":"588 ","pages":"Article 122876"},"PeriodicalIF":3.2,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144890471","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, structural studies, Hirshfeld surface analysis, DFT calculations, and antibacterial assays of mono- and dinuclear Zn(II) halide complexes containing N,N′,S-tridentate Schiff bases","authors":"Oscar Muñoz-Granados,&nbsp;Noemí Andrade-López,&nbsp;José G. Alvarado-Rodríguez,&nbsp;Claudia Coronel-Olivares,&nbsp;Francisco J. Zuno-Cruz,&nbsp;J. Viridiana García-González","doi":"10.1016/j.ica.2025.122874","DOIUrl":"10.1016/j.ica.2025.122874","url":null,"abstract":"<div><div>The synthesis and structural characterization of zinc(II) dinuclear complexes of general formula [{Zn(<strong><em>L</em></strong>^{<strong><em>n</em></strong>})X}₂] (X = Cl, Br, I) containing Schiff bases derived from 2-R-(2-pyridyl)benzothiazoline precursors are described. These complexes were characterized by infrared spectroscopy and mass spectrometry. Their dissociation was promoted by DMSO, giving the mononuclear complexes of general formula [Zn(<strong>L</strong>^{<strong><em>n</em></strong>})(<em>O</em>-dmso)X]. X-ray diffraction analysis of <strong>3a</strong>–<strong>3c</strong>, <strong>2a</strong>^{<strong><em>dmso</em></strong>}<em>,</em> <strong>3a</strong>^{<strong><em>dmso</em></strong>}–<strong>3c</strong>^{<strong><em>dmso</em></strong>}, and <strong>4a</strong>^{<strong><em>dmso</em></strong>}–<strong>4c</strong>^{<strong><em>dmso</em></strong>} complexes showed the formation of pentacoordinate compounds containing two five-membered chelate rings. The local geometry around the Zn(II) ion is described as trigonal bipyramidal in the dinuclear complexes; in the mononuclear ones it was better described as distorted square pyramidal, with different positions observed for the halogen ligands. Hirshfeld surface analysis showed the predominance of C–H···π interactions and C–H···S and C–H···X non-classical hydrogen bonding interactions, in the cohesion of the crystalline network. DFT calculations at PBE0/TZVP were carried out. The topological analysis indicated that bond critical points are present along the different bonds around the zinc(II) center, and the electron localization function graphs along with the high localization domain population and volume (HELP and HELV) descriptors showed the presence of electron pairs of the nitrogen donor atoms directed to the Zn(II) cation. Preliminary antibacterial studies for precursors <strong>1</strong>–<strong>4</strong> and mononuclear complexes <strong>1a</strong>^{<strong><em>dmso</em></strong>}–<strong>4a</strong>^{<strong><em>dmso</em></strong>}, <strong>1b</strong>^{<strong><em>dmso</em></strong>}–<strong>4b</strong>^{<strong><em>dmso</em></strong>} and <strong>1c</strong>^{<strong><em>dmso</em></strong>}–<strong>4c</strong>^{<strong><em>dmso</em></strong>} against <em>Bacillus subtilis</em> and <em>Escherichia coli</em> were also carried out.</div></div>","PeriodicalId":13599,"journal":{"name":"Inorganica Chimica Acta","volume":"588 ","pages":"Article 122874"},"PeriodicalIF":3.2,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144890472","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":"Ethylene oligomerization by multimetallic nickel complex bearing multiple macrocyclic Schiff base ligand","authors":"Xueyan Wang ,&nbsp;Jingqi Xue ,&nbsp;Hongliang Huo ,&nbsp;Yan Jiang ,&nbsp;Lili Ma ,&nbsp;Feng Li ,&nbsp;Yuxin Gao ,&nbsp;Cuiqin Li","doi":"10.1016/j.ica.2025.122873","DOIUrl":"10.1016/j.ica.2025.122873","url":null,"abstract":"<div><div>Macrocyclic Schiff base ligand with multivariate cyclic structure (C₀-PAMT-Ligand) was synthesized from the first generation dendritic macromolecule (C₀-PAMAM) and terephthalaldehyde in a mixed solution of acetonitrile and methanol. The reaction of C₀-PAMT-Ligand with nickel (II) chloride ethylene glycol dimethyl ether (NiCl₂(DME)) yielded the corresponding multimetallic nickel complex with confinement effect (C₀-PAMT-Cat) for ethylene oligomerization. The effect of reaction parameters on the catalytic properties was investigated using methylaluminoxane (MAO) as co-catalyst in cyclohexane. The introduction of cyclic structure to the Schiff base ligand improved the catalytic activity and the selectivity for low-carbon olefins under mild conditions. The catalytic activity of C₀-PAMT-Cat for ethylene oligomerization was 1.28 × 10⁵ g/(mol Ni·h), and the C₄ selectivity reached 96.15 %. C₀-PAMT-Cat with asymmetric cyclic structure had higher catalytic activity and higher selectivity for low-carbon olefins compared to other macrocyclic Schiff base nickel (II) complexes with symmetrical structure. C₀-PAMT-Cat exhibited significant recyclability and catalytic stability.</div></div>","PeriodicalId":13599,"journal":{"name":"Inorganica Chimica Acta","volume":"588 ","pages":"Article 122873"},"PeriodicalIF":3.2,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144864518","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":"Fluorinated β-diketonate lanthanide emitters containing pyrazine: Syntheses, crystal structures, Hirshfeld surface analyses, and luminescence properties","authors":"Yang Luo,&nbsp;Xiaofen Li,&nbsp;Yueyun Zou,&nbsp;Yu Wu,&nbsp;Yan Li,&nbsp;Kai Wang,&nbsp;Xueming Li","doi":"10.1016/j.ica.2025.122872","DOIUrl":"10.1016/j.ica.2025.122872","url":null,"abstract":"<div><div>Reaction of pyrazine (pz) with [Ln(hfac)₃(H₂O)₂] [Ln(III) = Nd, Sm, Eu, Gd, Tb; hfac = 1,1,1,5,5,5-hexafluoroacetylacetonate] afforded five pz-bidged dinuclear lanthanide complexes, namely [(H₂O)₂(hfac)₃Ln(<em>μ</em>-pz)Ln(hfac)₃(H₂O)₂]·2pz [Ln(III) = Nd (<strong>1</strong>), Sm (<strong>2</strong>), Eu (<strong>3</strong>), Gd (<strong>4</strong>), Tb (<strong>5</strong>)]. Under identical reaction condition, the reaction of pz with [Er(hfac)₃(H₂O)₂] yielded a mixture of two erbium complexes: pz-bidged dinuclear complex [(H₂O)(hfac)₃Er(<em>μ</em>-pz)Er(hfac)₃(H₂O)]·2pz (<strong>6</strong>) and polymeric complex [Er(hfac)₃pz]_n (<strong>7</strong>). Meanwhile, a reaction of pz with [Yb(hfac)₃(H₂O)₂] gave mononuclear complex [Yb(hfac)₃(H₂O)pz]·pz (<strong>8</strong>). The structural diversity among these complexes is attibuted to the lanthanide contraction, as the atomic radii decrease systematically from Nd to Yb. The synthesized complexes were characterized using infrared spectroscopy (IR), thermogravimetric analysis (TGA) and single-crystal X-ray diffraction (SCXRD), and powder X-ray diffraction (PXRD). TGA measurements confirmed the thermal stability of the lanthanide complexes. Solid-state luminescence studies revealed that the absolute quantum yields (QYs) of <strong>2</strong>-Sm, <strong>3</strong>-Eu, and <strong>5</strong>-Tb were 0.20 %, 12.35 %, and 20.09 %, respectively, with corresponding luminescence lifetimes (<em>τ</em>) of 0.013 ms, 0.328 ms, and 0.315 ms. Complexes <strong>2</strong>-Sm, <strong>3</strong>-Eu, and <strong>5</strong>-Tb exhibited characteristic luminescence in orange, red, and green emissions, with Commission Internationale de l'Eclairage (CIE) coordinates of (0.6577, 0.342), (0.6681, 0.3301) and (0.3242, 0.6263), repectively. Notably, the sensitization effect of hfac and pz on Eu(III) was significantly stronger than that on Sm(III). Additionally, the synergistic action of these ligands enhanced the near-infrared (NIR) luminescence of Nd(III) and Yb(III) as well. Theoretical calculations based on Judd-Ofelt theory and energy transfer models were consistent with experimental results, demostrating that ligand triplet energy levels critically influenced the sensitization efficiency.</div></div>","PeriodicalId":13599,"journal":{"name":"Inorganica Chimica Acta","volume":"588 ","pages":"Article 122872"},"PeriodicalIF":3.2,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887566","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, structure, fluorescence, and probe properties of Y type tricarboxylic acid ligand europium complex","authors":"Zhi Shen,&nbsp;Qi-Yang Li,&nbsp;Lin-Xi Qin,&nbsp;Meng-ting Fan,&nbsp;Qiang Zhao","doi":"10.1016/j.ica.2025.122871","DOIUrl":"10.1016/j.ica.2025.122871","url":null,"abstract":"<div><div>In order to better study the properties of rare earth europium complexes in terms of fluorescence and probes, in this work, 5-(4-carboxyphenoxy)isophthalic acid (H₃cpipa) and rare metal ion Eu³⁺ were used to synthesize metal complex by solvothermal reaction. Then complex [(Eu₂(cpipa)₂·4H₂O)·8H₂O]_n <strong>(1)</strong> was synthesized. Data on the structure acquired via an X-ray single-crystal diffractometer indicates that complex <strong>1</strong> is a three-dimensional network structure with a hollow structure. Moreover, solid-state fluorescence tests were carried out on H₃cpipa and complex <strong>1</strong>. Fluorescence recognition studies were conducted on complex <strong>1</strong> in dispersed systems. The solid-state fluorescence results show that complex <strong>1</strong> has excellent fluorescence properties, with higher fluorescence intensity than the ligand, and it exhibits the bright characteristic red light of europium under fluorescent lamp. Fluorescence recognition studies have shown that complex <strong>1</strong> in dispersed systems serves as a fluorescent probe for both solvent molecule recognition and cation recognition. In solvent molecule systems, complex <strong>1</strong> exhibits good recognition of acetone, while in cation systems, complex <strong>1</strong> shows good selectivity for Fe³⁺ ions</div></div>","PeriodicalId":13599,"journal":{"name":"Inorganica Chimica Acta","volume":"588 ","pages":"Article 122871"},"PeriodicalIF":3.2,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858311","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 gram scale generation of boron triiodide","authors":"Ashley A. Schneider,&nbsp;Benjamin Revis,&nbsp;Florence J. Williams","doi":"10.1016/j.ica.2025.122865","DOIUrl":"10.1016/j.ica.2025.122865","url":null,"abstract":"<div><div>Boron triiodide (BI₃) is a versatile reagent with underexplored chemical utility. Major factors that affect its lack of use are the expensive cost and dark, moisture-free storage requirements. Despite this, BI₃ can be synthesized using relatively inexpensive potassium borohydride (KBH₄) and molecular iodine (I₂). However, prior literature on BI₃ generation often make use of impractical experimental setups, including ambiguous experimental details, and report varying yields for similar or identical protocols. To enable continued investigation of the unique chemical behavior of BI₃, a streamlined production method that is accessible, reproducible, and gram-scale is highly desirable. Herein, we report a one-pot gram scale generation of BI₃. Characterization and purity were evaluated by PXRD, NMR, IR, and UV/Vis spectroscopy, as well as melting point assessment. Furthermore, the experimental design addresses potential safety risks while simplifying the reaction setup to a modular all-in-one system that is suitable for the typical research laboratory.</div></div>","PeriodicalId":13599,"journal":{"name":"Inorganica Chimica Acta","volume":"588 ","pages":"Article 122865"},"PeriodicalIF":3.2,"publicationDate":"2025-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144864517","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":"pH-regulated polyoxometalate-carboxylate-mixed templated hybrid framework for electrochemical sensing IO3− and IO4−","authors":"Lian Yang ,&nbsp;Jiyu Sun ,&nbsp;Baoqi Zhong,&nbsp;Guocheng Liu,&nbsp;Chang Sun,&nbsp;Zhong Zhang,&nbsp;Xiuli Wang","doi":"10.1016/j.ica.2025.122869","DOIUrl":"10.1016/j.ica.2025.122869","url":null,"abstract":"<div><div>Oxidant contaminants (periodate or iodate) are obviously harmful to human health, especially to the ecosystem, so it is important to monitor them by simple and feasible strategies. In this work, a new Keggin-type polyoxometalate-based hybrid framework [Cu₂(H₂L)₂(HL)₄(PMo₁₂O₄₀)₂]·2H₂O (<strong>1</strong>) were synthesized through adjusting pH under environmentally friendly one-pot method [HL = 4-(benzimidazole-1-ylmethyl)benzoic acid]. Using the universality of Cu²⁺ ion, polyoxometalate anion (PMo₁₂O₄₀³⁻) and N-containing organic carboxylic acid anion (HL) were successfully combined into the title electrochemical detection material. IR, PXRD, EIS, XPS and single crystal X-ray diffraction were used for the characterization of <strong>1</strong>. As electrochemical sensor, compound <strong>1</strong> modified carbon paste electrodes (<strong>1-</strong>CPE) can effectively detect IO₃⁻ and IO₄⁻ with the LOD of “μM” level and good stability. The simulation detection in tap water and the possible related mechanism were also explored.</div></div>","PeriodicalId":13599,"journal":{"name":"Inorganica Chimica Acta","volume":"588 ","pages":"Article 122869"},"PeriodicalIF":3.2,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144809776","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":"Rhodamine containing Schiff base fluorescence sensor for Cu2+ ion and its application in natural water samples analysis","authors":"Sunita Prajapati,&nbsp;Subrata Jana","doi":"10.1016/j.ica.2025.122867","DOIUrl":"10.1016/j.ica.2025.122867","url":null,"abstract":"<div><div>Selective fluorescence sensing of Cu²⁺ is carried out using rhodamine B containing Schiff base sensor in semi aqueous system. The sensor <strong>R</strong> has showed FRET based <em>Off-On</em> fluorescence sensing properties for Cu²⁺ at pH 7.4 in CH₃CN-10 mM HEPES buffer (1:1, <em>v</em>/v) solvent system. The fluorescence emission intensity of the complexes between host and Cu²⁺ is least affected by the other competitive metal ions during the sensing process. The interaction of <strong>R</strong> with Cu²⁺ also evaluated through ¹H NMR, and PXRD studies. The LOD of sensor <strong>R</strong> for Cu²⁺ is 0.46 nM which is quite low in compared to the many other reported sensors. The practical applicability of the sensor is determined by the detection of Cu²⁺ in natural water samples. So this rhodamine containing Schiff base compound <strong>R</strong> would be cost effective FRET mediated fluorogenic sensor for Cu²⁺.</div></div>","PeriodicalId":13599,"journal":{"name":"Inorganica Chimica Acta","volume":"588 ","pages":"Article 122867"},"PeriodicalIF":3.2,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144852461","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}