Polyhedron最新文献

{"title":"Ruthenium(II) p-cymene complexes bearing amine-functionalized N-heterocyclic carbenes: Synthesis, characterization, in silico and enzyme inhibition studies","authors":"Beyhan Yiğit ,&nbsp;Adem Ertürk ,&nbsp;Duygu Barut Celepci ,&nbsp;Hasan Akdan ,&nbsp;Enes Evren ,&nbsp;Tuğba Taskin-Tok ,&nbsp;Murat Yiğit ,&nbsp;Muhittin Aygün ,&nbsp;İsmail Özdemir ,&nbsp;İlhami Gülçin","doi":"10.1016/j.poly.2025.117483","DOIUrl":"10.1016/j.poly.2025.117483","url":null,"abstract":"<div><div>Although the ruthenium <em>N</em>-heterocyclic carbene (NHC) complexes have been widely used in catalysis, they have only recently been evaluated for medicinal applications. Herein, a series of new ruthenium(II) <em>p</em>-cymene complexes with benzimidazole-based NHC ligands were synthesized by the transmetalation reaction from silver(I)–NHC complexes. These complexes were characterized by FT-IR, ¹H NMR and ¹³C NMR spectroscopy, elemental analysis, and mass spectrometry. Also, the molecular and crystal structures of <strong>3f</strong> has been determined by the single-crystal X-ray diffraction method. Acetylcholinesterase (AChE) plays an important role in neurotransmission by hydrolyzing the neurotransmitter acetylcholine. On the other hand, carbonic anhydrase (CA) has a crucial role in living organisms for the maintenance of some obligatory metabolic functions. All the ruthenium(II) complexes were tested against the enzymes including AChE, hCAs I and II, which associated with epilepsy, glaucoma, and Alzheimer’s disease (AD), respectively. These complexes <strong>3a-f</strong> were recognized as highly potent inhibition effects towards hCA I isoenzyme (Kis: 2.80 ± 0.05–35.46 ± 9.07 μM) and hCA II isoenzyme (Kis: 4.52 ± 0.24–20.20 ± 2.28 μM) and AChE enzyme (Kis: 0.39 ± 0.21–1.31 ± 0.03 μM). Besides these, molecular docking simulations and the ADMET process, which are computational methods, were used to elucidate and verify the results obtained from the above-mentioned studies at the molecular level.</div></div>","PeriodicalId":20278,"journal":{"name":"Polyhedron","volume":"272 ","pages":"Article 117483"},"PeriodicalIF":2.4,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143600634","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":"Mono(guanidinate) chromium(II) chloride complexes: Selective synthesis and structural characterization","authors":"Awal Noor","doi":"10.1016/j.poly.2025.117481","DOIUrl":"10.1016/j.poly.2025.117481","url":null,"abstract":"<div><div>Reaction of the lithium salts of the two sterically bulky guanidinate ligands, {Li[RC(NAr)₂]} (Ar = 2,6-diisopropylphenyl; R = N(CH₂)₅ (<strong>1</strong>); R = NCy₂ (<strong>2</strong>)) with one equivalent of CrCl₂ in tetrahydrofuran (THF) at room temperature yielded the corresponding chloride-bridged binuclear complexes, [{(CH₂)₅NC(NAr)₂}Cr(µ-Cl)₂Cr(THF){(CH₂)₅NC(NAr)₂}]<!--> <!-->(<strong>3</strong>) and [{Cy₂NC(NAr)₂}Cr(µ-Cl)]₂ (<strong>4</strong>). These are rare examples of binuclear mono(guanidinate) chromium(II) chloride complexes without the formation of chromium “ate” complexes. Both complexes were characterized by single crystal X-ray analysis that showed strong boat-like distortions around the chromium centers. In compound <strong>3</strong> the coordination of one THF molecule to one of the Cr leads to two different coordination environments. In <strong>4</strong> both Cr atoms are four coordinated and show distorted square planar geometries around the chromium center. Nearly identical C–N bond lengths show considerable interaction of the lone pair of the non-coordinating <em>N</em>-atom with the conjugated NCN moiety. The three-dimensional Hirshfeld surface analysis and the two-dimensional fingerprint plots showed that H⋯H interactions, H⋯C/C⋯H and H⋯Cl/Cl⋯H H–bonds were the main and at times the strongest contributions for the intermolecular interactions.</div></div>","PeriodicalId":20278,"journal":{"name":"Polyhedron","volume":"273 ","pages":"Article 117481"},"PeriodicalIF":2.4,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143578787","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":"Magnetic interactions in coordination species with 5-sulfosalicylates","authors":"Bojan Kozlevčar ,&nbsp;Zvonko Jagličić ,&nbsp;Andrej Pevec","doi":"10.1016/j.poly.2025.117482","DOIUrl":"10.1016/j.poly.2025.117482","url":null,"abstract":"<div><div>5-sulfosalicylic acid (H₃L) poses three potential coordination groups (carboxylic, sulfonic and hydroxylic) that can deprotonate and enable versatile coordination options with metal ions. This includes a bridging mode, a suitable way to enable stronger magnetic interactions, among adjacent metal ions. Several novel coordination compounds with 5-sulfosalicylates were synthesized and characterized. These are {[Cu(inia)(HL)(H₂O)₂](H₂O)₂}_n <strong>1</strong> (inia – isonicotinamide, C₆H₆N₂O), [Zn(inia)₂(HL)(H₂O)₂](H₂O) <strong>2</strong>, Co(inia)(HL)(H₂O)₅ <strong>3</strong>, {(CH₆N₃)₂[Cu(L)(H₂O)]₂(2OHpy)₄} <strong>4</strong> (2OHpy − 2-hydroxypyridine, C₅H₅NO; CH₆N₃⁺ − guanidinium cation), and (CH₆N₃)Cu(L)(H₂O) <strong>5</strong>. A single crystal XRD analysis reveals structural arrangement of <strong>1</strong>, <strong>2</strong> and <strong>4</strong>. CHN and IR analyses corroborate with the structural data and propose rational formulae also for <strong>3</strong> and <strong>5</strong>. A strong antiferromagnetic (AFM) coupling is found for <strong>4</strong> (<em>J</em> = −116 cm⁻¹/ mol Cu(II)) being in agreement with a pair short monoatomic Cu∙∙∙O∙∙∙Cu’ coordination bridges (Cu∙∙∙O 1.941/ Cu’∙∙∙O 1.998 Å) showing pseudo dimers within coordination polyanions. As no such short contacts are seen for <strong>1</strong>, the magnetically isolated Cu(II) are present in a neutral coordination formulae, while diamagnetic Zn(II) is in <strong>2</strong>. Additionally, a strong AFM coupling is present also in <strong>5</strong> (<em>J</em> = −126 cm⁻¹/mol Cu(II)) with a formulae also suggesting ionic constituents as in <strong>4</strong>. The cobalt compound <strong>3</strong> reveals only a small orbital contribution <em>L</em> within almost magnetically isolated Co(II), giving <em>D</em> = 56.5 cm⁻¹, <em>E</em> = −0.34 cm⁻¹, and <em>zJ</em> = −0.011 cm⁻¹.</div></div>","PeriodicalId":20278,"journal":{"name":"Polyhedron","volume":"273 ","pages":"Article 117482"},"PeriodicalIF":2.4,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143578786","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":"Control of the supramolecular structure of zinc(II) phthalocyanine by morpholine","authors":"Jan Janczak","doi":"10.1016/j.poly.2025.117470","DOIUrl":"10.1016/j.poly.2025.117470","url":null,"abstract":"<div><div>The coordination preference of morpholine as an N- and O-donor ligand (NHC₄H₆O) for the coordination of zinc atom in ZnPc in solution was investigated. Under the conditions used, it has been shown that morpholine coordinates through the N atom to form a <em>T</em>-shaped ZnPc(Morph) complex, that crystallizes in the centrosymmetric space group of the triclinic system as morpholine disolvate, ZnPc(Morph)‧2(Morph) with two molecules in the asymmetric unit. Both independent ZnPc(Morph) molecules exhibit similar conformation with Zn atom out of the N₄-isoindole plane of the phthalocyanine macrocycle that adopts a saucer-shaped. Supramolecular arrangement of the ZnPc(Morph)‧2(Morph) in crystal is characterized by a reduction of π···π interactions and an improvement in inter-system crossing in relation to parent ZnPc and is controlled by the solvent morpholine molecules, which results in increase its solubility and improved photophysical and photochemical properties. The aggregation behaviour of ZnPc(Morph)‧2(Morph) building crystals in solutions was investigated by UV–Vis spectroscopy. Besides, the UV–Vis spectroscopic characterization of the ZnPc(Morph)‧2(Morph) crystals in solutions, the diffuse reflectance spectroscopic (DSR) characterization on the solid sample of ZnPc(Morph)‧2(Morph) was performed. The DSR spectra of ZnPc(Morph)‧2(Morph) exhibit broad bands with a slight blue-shift that might be attributed to a larger exciton coupling resulting from closer contacts between the molecules than in solution. In order to support and verify the experimental results, the DFT and time-dependent (TD) DFT calculations were performed.</div></div>","PeriodicalId":20278,"journal":{"name":"Polyhedron","volume":"272 ","pages":"Article 117470"},"PeriodicalIF":2.4,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143600794","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":"Structural variations in Co(II), Co(III) and Zn(II) complexes of a chiral triphenolic macrocycle","authors":"Karol Wydra,&nbsp;Katarzyna Ślepokura,&nbsp;Janusz Gregoliński,&nbsp;Jerzy Lisowski","doi":"10.1016/j.poly.2025.117472","DOIUrl":"10.1016/j.poly.2025.117472","url":null,"abstract":"<div><div>Five homonuclear cobalt(II) and zinc(II) complexes and two mixed-valence Co(II)/Co(III) coordination species derived from the enantiomers of the macrocycle H₃<strong>L</strong> were synthesized, characterized by spectroscopic methods and their X-ray crystal structures were determined. The large macrocyclic amine <strong>L</strong>³⁻ composed of three phenol moieties and three <em>trans</em>-1,2-diaminocyclohexane units can accommodate three Co(II), Co(III) or Zn(II) ions in three N₂O₂ compartments, forming [M₃<strong>L</strong>]<em>ⁿ</em>⁺ type complexes. The geometry of these complexes is different for the Zn(II) and Co(II) ions and depends on the counteranion used. Additionally, this macrocycle binds only two metal ions in its partly deprotonated (H₂<strong>L</strong>)⁻ form to give complexes of the type [M₂(H₂<strong>L</strong>)]<em>ⁿ</em>⁺. Amine H₂<strong>L</strong>⁻ also forms a tetranuclear [M₄(H₂<strong>L</strong>)₂]<em>ⁿ</em>⁺ complex, where two macrocyclic units are additionally connected by bridging anions. XRD structures of seven additional coordination species that were isolated as single crystals are also presented.</div></div>","PeriodicalId":20278,"journal":{"name":"Polyhedron","volume":"273 ","pages":"Article 117472"},"PeriodicalIF":2.4,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143592908","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":"Application of sono-photochemical methods to cysteine-functionalized graphene quantum dots loaded with indium phthalocyanine for enhanced singlet oxygen generation","authors":"Gökçe Gökçil ,&nbsp;Kevser Celep ,&nbsp;Pınar Şen ,&nbsp;Fikrettin Şahin ,&nbsp;Ali Erdoğmuş ,&nbsp;Göknur Yaşa Atmaca","doi":"10.1016/j.poly.2025.117468","DOIUrl":"10.1016/j.poly.2025.117468","url":null,"abstract":"<div><div>Existing photodynamic therapy (PDT) agents face challenges such as low singlet oxygen production, severe photobleaching, and poor biocompatibility. To overcome these issues, we propose a novel method combining newly synthesized phthalocyanine with cysteine-functionalized graphene quantum dots (cys-GQDs). This approach aims to enhance singlet oxygen production, solubility and stability in biological environments.</div><div>In this study a new indium phthalocyanine and its cys-GQDs (InPc@cys-GQDs) derivative were synthesized as a new sono-photosensitizer candidate for therapeutic applications. Their photochemical and sono-photochemical properties were evaluated, focusing on singlet oxygen generation efficiency. Additionally, the stability, photostability, cellular uptake, and biocompatibility of these agents were tested through in vitro assays. The results show that the InPc@cys-GQDs conjugate has significantly higher singlet oxygen yield, especially with sono-photodynamic method compared to only phthalocyanine agent. They also demonstrate improved cellular internalization and reduced cytotoxicity, suggesting they offer a promising advancement for clinical PDT applications.</div></div>","PeriodicalId":20278,"journal":{"name":"Polyhedron","volume":"272 ","pages":"Article 117468"},"PeriodicalIF":2.4,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529237","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":"Adsorption performance study of cerium surfactant modified bentonite on phosphate","authors":"Fengshu Sun,&nbsp;Mingjun Xia,&nbsp;Hongbiao Zhou,&nbsp;Kaiyi Ji,&nbsp;Ru Li","doi":"10.1016/j.poly.2025.117467","DOIUrl":"10.1016/j.poly.2025.117467","url":null,"abstract":"<div><div>A novel cerium-based surfactant modified bentonite (Ce/CTAB/MB) adsorbent was prepared for the purpose of reducing the pollution of phosphate in water bodies and the risk of eutrophication it causes, through the adsorption of phosphate from wastewater. To elucidate the mechanism of the adsorbent, characterisation techniques such as scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) were employed. The phosphate adsorption properties were investigated through the implementation of kinetic and isothermal adsorption experiments within a single-component system. The experimental results demonstrated that the adsorption process was consistent with the quasi-secondary kinetic equation, and the adsorption behaviour was adequately described by the Freundlich isotherm model. The thermodynamic analysis revealed that the enthalpy change of adsorption, ΔH &lt; 0, indicating that the adsorption process was exothermic. The free energy change of adsorption, ΔG &gt; 0, suggesting that the adsorption behaviour was non-spontaneous. Furthermore, the entropy change of adsorption, ΔS &lt; 0, indicating that the adsorption process entailed entropy reduction. These findings indicate that the adsorption behaviour was a non-spontaneous exothermic process involving entropy reduction, and that high temperatures were not conducive to adsorption. Following the desorption and regeneration experiments, the adsorbent demonstrated relatively good reusability.</div></div>","PeriodicalId":20278,"journal":{"name":"Polyhedron","volume":"272 ","pages":"Article 117467"},"PeriodicalIF":2.4,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520255","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 multi-color tunable luminescence performance of Tb3+/Eu3+ co-doped SrGdGa3O7 phosphors","authors":"Qian Du ,&nbsp;Chang-Sheng Wang ,&nbsp;Yu-Guo Yang ,&nbsp;Wei Zhao ,&nbsp;Xiao-Na Shen ,&nbsp;Bing Liu ,&nbsp;Yuan-Yuan Zhang ,&nbsp;Hua-Di Zhang ,&nbsp;Hua-Jian Yu ,&nbsp;Cheng-Cheng Qiu ,&nbsp;Xian-Shun Lv ,&nbsp;Rui Zhang ,&nbsp;Xu-Ping Wang","doi":"10.1016/j.poly.2025.117469","DOIUrl":"10.1016/j.poly.2025.117469","url":null,"abstract":"<div><div>Some Tb³⁺/Eu³⁺ doped SrGdGa₃O₇ (SGGO) phosphors were fabricated, achieving multi-color tunability through the addition of a sensitizer. The experimental results indicate that the doped ions are uniformly distributed, with no impurity phases detected. In SGGO-based phosphors, Eu³⁺ ions serve as activators and exhibit an optimal luminescence transition level of ⁵D₀ → ⁷F₄. When Tb³⁺ ions are used as the sensitizer and at a specific concentration, the luminescence color transition of green → orange → red as the content of Eu³⁺ enhances. Analysis of the decay lifetime curves reveals that Tb³⁺ → Eu³⁺ energy transfers occur in the co-doped SGGO phosphors, with the mechanism identified as quadrupole–quadrupole interaction. This article investigates the specific energy transfer processes involved. The optimum content of Eu³⁺ is ascertained as 0.03. Under the excitation at 375 nm, the SGGO based phosphor containing 0.06 Tb³⁺ and 0.03 Eu³⁺ exhibits CIE coordinates of (0.5000, 0.4397).</div></div>","PeriodicalId":20278,"journal":{"name":"Polyhedron","volume":"272 ","pages":"Article 117469"},"PeriodicalIF":2.4,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520254","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 and photocatalytic properties of ZnO-CuO, ZnO-Graphene and ZnO-CuO-Graphene nanocomposites","authors":"Haroon Rashid ,&nbsp;Ejaz Muhammad ,&nbsp;Mehdi Hassan ,&nbsp;Abdul Rauf ,&nbsp;Arslan Bashir ,&nbsp;Wajahat Ali ,&nbsp;Tariq Jan ,&nbsp;Ali Bahadur ,&nbsp;Shahid Iqbal ,&nbsp;Sajid Mahmood ,&nbsp;Khalid M. Alotaibi","doi":"10.1016/j.poly.2025.117471","DOIUrl":"10.1016/j.poly.2025.117471","url":null,"abstract":"<div><div>Industrial wastes particularly organic dyes has been a matter of great challenge in the rapid growing industrial technologies. To address this issue nanocomposites of ZnO-Graphene, ZnO-CuO and ZnO-CuO-graphene were efficiently developed via chemical co-precipitation method and inestigated its photocatalytic properties for efficient waste water treatment in the degradation of methylene blue (MB) as an indicator. These nanocomposites were fully characterized by numerous advanced characterization techniques i.e. X-ray Diffraction (XRD), Fourier Transform Infrared spectroscopy (FTIR), UV–visible spectroscopy, Scanning Electron Microscopy (SEM), Energy Dispersive X-ray (EDX) Spectroscopy, and Photoluminescence (PL). The SEM image of ZnO-CuO-Graphene nanocomposite revealed flower-like morphology while the presence of Zn, Cu, O, and C were confirmed by EDX spectroscopy. Low PL intensity of ZnO-CuO-Graphene nanocomposite indicates low electron-hole recombination indicating it is a potential photocatalyst for photocatalysis application. Among all nanocomposites, ZnO-CuO-Graphene nanocomposite possesses greater photocatalytic activity after 180 min while exposed to solar light i.e. 81 % degradation of MB dye copared to 74 % and 77 % degradation by ZnO-G and ZnO-CuO nancomposites respectively. The incremental photocatalytic efficiency of the ZnO-CuO-Graphene nanocomposite is predominantly due to the larger active surface area resulting from the incorporation of Graphene.</div></div>","PeriodicalId":20278,"journal":{"name":"Polyhedron","volume":"273 ","pages":"Article 117471"},"PeriodicalIF":2.4,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529714","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":"A new ligand based on the closo-dodecaborate anion (Bu4N)[B12H11NH(CH2COOH)2]: Synthesis, structure, and its Eu(III) coordination compounds","authors":"Margarita N. Ryabchikova ,&nbsp;Alexey V. Nelyubin ,&nbsp;Grigorii A. Buzanov ,&nbsp;Alexey S. Kubasov ,&nbsp;Ilya N. Klyukin ,&nbsp;Andrey P. Zhdanov ,&nbsp;Konstantin Yu. Zhizhin ,&nbsp;Yulia G. Gorbunova ,&nbsp;Nikolay T. Kuznetsov","doi":"10.1016/j.poly.2025.117462","DOIUrl":"10.1016/j.poly.2025.117462","url":null,"abstract":"<div><div>In this work, a method for the preparation of a new chelating ligand [B₁₂H₁₁NH(CH₂COOH)₂]– via the alkylation reaction of ammonio-<em>closo</em>-dodecaborate anion has been proposed. The product and its synthetic precursor were characterized by NMR and IR spectroscopy, ESI-mass spectrometry, and X-ray analysis of single crystals. Two heteroligand complexes of europium(III) [Eu(Phen)₂B₁₂H₁₁NH(CH₂COO)₂](H₂O)₄ and [(Eu(phen)(DMSO)₃)₂(µ-B₁₂H₁₁NH(CH₂COO)₂)₂] were prepared based on the boron-containing ligand. The analysis of crystal structures showed the presence of intra- and intermolecular dihydrogen bonds.</div></div>","PeriodicalId":20278,"journal":{"name":"Polyhedron","volume":"272 ","pages":"Article 117462"},"PeriodicalIF":2.4,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520253","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}