Inorganic Chemistry Communications最新文献

{"title":"Multifunctional Sm3+ doped LiAlSiO4 nanoparticles for efficient photocatalytic water treatment and high-frequency dielectric applications","authors":"K.R. Jyothi ,&nbsp;K.R. Bhagya ,&nbsp;B.R. Radha Krushna ,&nbsp;K.Y. Prashanth ,&nbsp;Akshatha Nagaraja ,&nbsp;M.V. Murugendrappa ,&nbsp;Basavaraj Angadi ,&nbsp;H. Nagabhushana","doi":"10.1016/j.inoche.2025.115551","DOIUrl":"10.1016/j.inoche.2025.115551","url":null,"abstract":"<div><div>In this work, Sm³⁺ doped LiAlSiO₄ nanoparticles (1–11 mol%) are successfully synthesized via a solution combustion method and comprehensively characterized using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), and Fourier-transform infrared (FTIR) spectroscopy. The optical bandgap was found to decrease systematically from 4.427 eV (undoped) to 4.074 eV for 11 mol% Sm³⁺ doping, indicating bandgap modulation through rare-earth incorporation. The dielectric behavior is investigated through measurements of complex permittivity (ε^⁎), dielectric loss (tan δ), and AC conductivity (σ) across varying frequencies and dopant concentrations. Results showed that both ε' and ε″, as well as tan δ, decreased with frequency, whereas σ exhibited an increasing trend. Notably, Sm³⁺ doping enhanced the conductivity compared to the undoped sample, confirming its potential for high-frequency dielectric applications. Photocatalytic activity is evaluated using Rhodamine B (Rh·B) as a model dye under UV light. The optimized LiAlSiO₄:11Sm³⁺ sample demonstrated exceptional photocatalytic efficiency, achieving 99.12 % degradation of Rh·B within 120 min. Further studies assessed the effects of catalyst loading 40 mg (73.4 %), dye concentration 5 pp. (99.23 %), pH 12 (99 %), and scavenger agents, revealing critical factors influencing degradation performance. The combined dielectric and photocatalytic properties highlight the multifunctionality of Sm³⁺ doped LiAlSiO₄ NPs for potential applications in environmental remediation and advanced optoelectronic devices.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"182 ","pages":"Article 115551"},"PeriodicalIF":5.4,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145216356","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":"A piezoelectric nanoplatform for ultrasound-triggered ROS storm via synergistic piezo-catalytic and fenton reactions to eradicate bladder tumors","authors":"Yuxiang Wang ,&nbsp;Hongyu Liu ,&nbsp;Beizhang Zhang ,&nbsp;Guannan Zhang ,&nbsp;Hailong Hao","doi":"10.1016/j.inoche.2025.115556","DOIUrl":"10.1016/j.inoche.2025.115556","url":null,"abstract":"<div><div>Sonodynamic therapy (SDT) is considered an effective method for treating bladder cancer, but the limited electron transfer of a single material and the hypoxic microenvironment of cancer limit the efficiency of SDT. Here, barium titanate (BTO) was prepared, and Cu was doped into BTO through hydrothermal synthesis and high-temperature annealing, followed by surface conjugation of tumor-specific proteins (BTO/Cu/PDA/Nectin-4). The Cu doping enhances the ferroelectric polarization of BTO and reduces its bandgap, facilitating electron transfer. Meanwhile, Cu can react with hydrogen peroxide (H₂O₂) via the Fenton reaction to generate reactive oxygen species (ROS), thereby enhancing the chemodynamic therapy (CDT) effect. The combination of SDT and CDT enhanced ROS production, and both in vitro and in vivo results demonstrated excellent cytotoxic effects and tumor suppression against bladder cancer cells. This combined SDT and CDT approach offers an effective therapeutic strategy for antitumor treatment.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"182 ","pages":"Article 115556"},"PeriodicalIF":5.4,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154813","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":"Benzimidazole appended 1,2,3-Triazole Chemosensor: Selective Zr(IV) sensing coupled with anticancer and antioxidant potency","authors":"Gurjaspreet Singh ,&nbsp;Jyoti ,&nbsp;Mithun ,&nbsp;Harshbir Kaur ,&nbsp;Bhavana Rani ,&nbsp;Komal ,&nbsp;Baljinder Singh Gill ,&nbsp;Deepanjali Baliyan ,&nbsp;Amarjit Kaur","doi":"10.1016/j.inoche.2025.115545","DOIUrl":"10.1016/j.inoche.2025.115545","url":null,"abstract":"<div><div>Benzimidazole appended 1,2,3-triazole was synthesized and highlighting the Zr(IV) sensing, antioxidant and anticancer properties. The characterization of the probe (Bentz) was executed via ¹H and ¹³C NMR, mass spectrum analysis, Infrared spectroscopy (FT). The Bentz shows good sensitivity and selectivity towards Zr(IV) in contrast to other various metal ions through UV–Visible spectrophotometer. The LOD and binding constant was figured out as 0.349 × 10⁻⁷ M and 5.32 × 10⁴ M⁻¹. Job's plot confirms that the binding ratio between Bentz and Zr(IV) comes out to be 1:1. The interaction between Bentz and Zr(IV) was verified through ¹H NMR, mass spectrum analysis and Fourier transform infrared spectroscopy. The Bentz showed antioxidant and anticancer activity which has been checked through experimental method and molecular docking analysis. The binding energies of Bentz with proteins human papillomavirus 31 and cyclooxygenase-2 comes out to be −10.43 and − 11.27 kcal/mol respectively.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"182 ","pages":"Article 115545"},"PeriodicalIF":5.4,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154954","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":"Solvent-driven tuning of the emission properties of dinuclear Cu(I) and Ag(I) pyrazolate-phosphine complexes","authors":"Arina P. Olbrykh ,&nbsp;Vladislav M. Korshunov ,&nbsp;Andrey Yu. Baranov ,&nbsp;Alexander S. Goloveshkin ,&nbsp;Alexander F. Smol'yakov ,&nbsp;Nikita S. Kurochkin ,&nbsp;Ilya V. Taydakov ,&nbsp;Alexander V. Artem'ev ,&nbsp;Oleg A. Filippov ,&nbsp;Aleksei A. Titov ,&nbsp;Elena S. Shubina","doi":"10.1016/j.inoche.2025.115539","DOIUrl":"10.1016/j.inoche.2025.115539","url":null,"abstract":"<div><div>The reaction of cyclic trinuclear copper(I) and silver(I) pyrazolates [MPz]₃ (Pz = 3,5-(CF₃)₂ Pz) with tris(2-pyridyl)phosphine (Py₃P) in a 1:3 stoichiometric ratio in toluene (one phosphorus per metal center) results in the precipitation of binuclear complexes with the general formula [MPz(Py₃P)]₂: <strong>1</strong> (M = Cu), <strong>2</strong> (M = Ag) afforded solvent-incorporated analogues Subsequent crystallization from dichloromethane (DCM) afforded solvent-incorporated analogues: <strong>3</strong> (M = Cu), <strong>4</strong> (M = Ag). Structural analysis reveals fundamentally different solvent interactions: while DCM forms stabilizing CH-π hydrogen bonds in the Cu(I) complex <strong>3</strong> with minimal structural perturbation, the Ag(I) analogue <strong>4</strong> undergoes rapid solvent loss upon air exposure, accompanied by crystal degradation. Notably, the solvated silver(I) complex exhibits a shorter intramolecular Ag┄Ag distance (ca. 0.2 Å) compared to its non-solvated counterpart. All synthesized complexes shows metal- and solvent-dependent luminescence, with <strong>1</strong>–<strong>3</strong> demonstrating phosphorescence, while complex <strong>4</strong> demonstrates emission typical of thermally activated delayed fluorescence behavior (TADF). These findings underscore the pronounced influence of metal identity and solvent interactions on both structural and photophysical properties in this class of compounds.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"182 ","pages":"Article 115539"},"PeriodicalIF":5.4,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155409","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":"Integrated effective detection of Fe3+ and F− in water of NH2-MIL-53(Al) by constructing a “on-off-on” fluorescence system","authors":"Ling Zhao,&nbsp;Zhengyang Zhang,&nbsp;Sheng Cheng,&nbsp;Jiayi Liu,&nbsp;Jiaxin Liu,&nbsp;Daquan Fu","doi":"10.1016/j.inoche.2025.115535","DOIUrl":"10.1016/j.inoche.2025.115535","url":null,"abstract":"<div><div>Metal-organic Frameworks (MOFs) have potential value in ion detection due to their unique fluorescence sensing properties. Herein, NH₂-MIL-53(Al), as one of the MOFs materials with intrinsic fluorescence performance, was synthesized by solvothermal method for sequential detection of Fe³⁺ and F⁻ by a “on-off-on” system. Results confirmed that the application of NH₂-MIL-53(Al) on a series of solutions containing 0.01 M metal cations are fluorescence detection, Fe³⁺ will almost fluorescence quenching, indicating that NH₂-MIL-53(Al) has a specific recognition of Fe³⁺. The sensor could quantify Fe³⁺ with a limit of detection of 0.392 μM. After quenching the fluorescence of NH₂-MIL-53(Al) with appropriate concentration of Fe³⁺, a series of anion detection showed that F⁻ could restore the quenched fluorescence to a certain extent. And the sensor could quantify F⁻ with a limit of detection of 6.019 μM. Therefore, the preparation of NH₂-MIL-53(Al) can effectively detect the Fe³⁺ and F⁻ in the water with the characteristics of wide detection range (0–1000 μM), low detection limit and high recovery rate, making it a promising candidate for the monitoring of Fe³⁺ and F⁻ polluted waters.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"182 ","pages":"Article 115535"},"PeriodicalIF":5.4,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154816","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":"Photocatalytic degradation of oxytetracycline with Pr3+-Bi3+ co-doped SrZrO3 materials","authors":"Diana L. Hernández-Arellano ,&nbsp;Juan C. Durán-Álvarez ,&nbsp;Silvana Cortés-Lagunes ,&nbsp;Rodolfo Zanella ,&nbsp;Federico González ,&nbsp;Rigoberto López-Juárez","doi":"10.1016/j.inoche.2025.115553","DOIUrl":"10.1016/j.inoche.2025.115553","url":null,"abstract":"<div><div>The occurrence of antibiotics in the aquatic environment has raised concern due to their ecotoxicological effects. Among the available strategies for their removal, heterogeneous photocatalysis has emerged as a promising approach. SrZrO₃ has been investigated as a photocatalyst, however, its practical application is limited by its wide band gap (<em>E</em>_<em>g</em>, ∼5.6 eV). In this study, the effect of Bi³⁺–Pr³⁺ co-doping on the photocatalytic activity of SrZrO₃ was systematically evaluated. The Bi³⁺ content was fixed at 1 mol%, while the Pr³⁺ concentration was varied according to the general formula SrZr_0.99-xBi_0.01Pr_xO₃ (0 ≤ x ≤ 3 mol%). The materials were synthesized via the polymerizable-complex (Pechini) method and calcined at 900 °C and 1100 °C for 1 h. The XRD analysis confirmed that all samples crystallized into an orthorhombic structure. Co-doping effectively reduced the <em>E</em>_<em>g</em> from 3.84 eV to &lt;3.16 eV. Among the prepared materials, SrZr_0.975Bi_0.01Pr_0.015O₃ material calcined at 900 °C for 1 h displayed the highest photocatalytic performance, achieving 92.7 % oxytetracycline (OTC) degradation with a rate constant of 0.0110 min⁻¹. The scavenger experiments using N₂, formic acid, and isopropanol revealed that photo-generated holes are the dominant reactive species driving the degradation process. Photocatalysis tests carried out in tap water and secondary effluent demonstrated a decrease in photocatalytic efficiency, due to the presence of competing dissolved organic matter. Recycling tests demonstrated that the best photocatalyst remained stable with acceptable reusability. Therefore, Bi³⁺–Pr³⁺ co-doping is confirmed as an effective strategy to narrow the SrZrO₃ band gap and enhance its photocatalytic activity toward OTC degradation, underscoring its potential application in wastewater treatment.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"182 ","pages":"Article 115553"},"PeriodicalIF":5.4,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154953","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":"Two-dimensional ultra-thin MoOx / in-situ perovskite nanoparticles generated the increase of Raman scattering performance","authors":"Ziyun Zhuang ,&nbsp;Tian Xing ,&nbsp;Ruijin Hong ,&nbsp;Chunxian Tao ,&nbsp;Zhaoxia Han ,&nbsp;Dawei Zhang ,&nbsp;Songlin Zhuang","doi":"10.1016/j.inoche.2025.115525","DOIUrl":"10.1016/j.inoche.2025.115525","url":null,"abstract":"<div><div>Recent advancements in metal oxide Surface-Enhanced Raman Spectroscopy (SERS)substrates, particularly using semiconductor materials like perovskites, present a promising avenue. This study addresses the challenge of enhancing Raman performance by optimizing a series of the deposition of ultrathin molybdenum oxide (MoOx) films on perovskite substrates and employing an optical fiber probe tip. The MoOx layer's thickness modulates residual stress, resulting in a rough, block-like wrinkled morphology that increases “hot spots” and significantly boosts Raman signals. XPS analysis confirmed the composite's stability, indicating that mixed valence states of molybdenum and oxygen-related defects aid in stress release. The release of residual stress yielded a uniformly rough surface, enhancing Raman scattering through increased roughness and inducing notable spectral shifts, particularly at ∼912 cm⁻¹ (CH₃NH₃ rocking mode) and ∼ 968 cm⁻¹ (C<img>N symmetric stretching mode). The CH₃NH₃PbBr₃@MoOx (MAPbBr₃@MoOₓ) substrate achieved a SERS analytical enhancement factor of 1.12 × 10⁴ and a detection limit of 10⁻⁸ mol/L for methylene blue. Significant agreement was found between the experimental and finite difference in time domain (FDTD) simulation results.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"182 ","pages":"Article 115525"},"PeriodicalIF":5.4,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154958","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":"Engineering Nb2O5 embedded quinoline-linked COF as a high-performance catalyst for synthesis of tetrahydropyridines and α-aminobenzyl-4-hydroxycoumarins","authors":"Zahra Alishahi ,&nbsp;Morteza Torabi ,&nbsp;Meysam Yarie ,&nbsp;Davood Sabaghi ,&nbsp;Mohammad Ali Zolfigol","doi":"10.1016/j.inoche.2025.115513","DOIUrl":"10.1016/j.inoche.2025.115513","url":null,"abstract":"<div><div>Recently, the development of metal oxide embedded covalent organic frameworks (COFs) for promoting their chemical and physical properties, is taken into consideration. In the current study, we investigate synthesis of metal oxide-COF hybrid namely QCOF@Nb₂O₅, <em>via</em> post synthetic decoration of a quinoline-linked COF by Nb₂O₅. Thanks to the presence of carboxylic acid groups in the structure of QCOF and due to the presence of hydroxyl groups in the surface of Nb₂O₅, these lead to successful decoration of Nb₂O₅ on the surface and pores of QCOF. After post modification, the morphology, chemical and physical properties of QCOF are affected by Nb₂O₅. The co-existence of the Nb₂O₅ particles, acidic functional groups, and acceptable specific surface area, significantly increased the catalytic activity of QCOF-Nb₂O₅ towards the multicomponent preparation of tetrahydropyridines and α-aminobenzyl-4-hydroxycoumarins with (70–98 % yields). Meanwhile, the convenient functional group tolerance and high yields of derivatives are highlighted benefits for the catalytic preparation of these chemicals.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"182 ","pages":"Article 115513"},"PeriodicalIF":5.4,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145216475","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, and aggregation-caused quenching (ACQ) of luminescence in dinuclear gold(I) chloride complexes with N-(2-anthracenyl)-substituted cyclic P2N2-ligands","authors":"Irina R. Dayanova ,&nbsp;Alexey V. Kurenkov ,&nbsp;Elizaveta M. Shibetskaya ,&nbsp;Artemiy G. Shmelev ,&nbsp;Bulat A. Faizullin ,&nbsp;Aliya M. Saitova ,&nbsp;Tatiana P. Gerasimova ,&nbsp;Igor A. Litvinov ,&nbsp;Elvira I. Musina ,&nbsp;Igor D. Strelnik ,&nbsp;Andrey A. Karasik ,&nbsp;Oleg G. Sinyashin","doi":"10.1016/j.inoche.2025.115543","DOIUrl":"10.1016/j.inoche.2025.115543","url":null,"abstract":"<div><div>The first example of cyclic P₂N₂-ligands, containing polyaromatic anthracenyl substituents were synthesized using pyridine-2-yl-, 2-(pyridine-2′-yl)ethyl and 2-(thiophene-2′-yl)ethylphosphines, paraformaldehyde and 2-aminoanthracene. The reactions of the P₂N₂-ligands with gold(I) tetrahydrothiophene chloride resulted in the formation of the gold(I) complexes of LAu₂Cl₂ constitution. Comprehensive structural characterization, including single-crystal X-ray diffraction, revealed π–π stacking between anthracenyl fragments in the solid state. Photophysical studies showed concentration-dependent emission behavior in DMSO solutions, with multiple emissive states attributed to π–π*, ILCT, and excimer-based transitions. At high concentrations and in the solid state, aggregation-caused quenching (ACQ) was observed, while at 10⁻⁵ M concentration, complexes displayed strong fluorescence with a photoluminescence quantum yield (PLQY) up to 99 %. TDDFT calculations support the assignment of the low-energy bands to ILCT transitions enhanced by stacking effects.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"182 ","pages":"Article 115543"},"PeriodicalIF":5.4,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154955","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":"Design and reactivity of Tripodal Tetradentate mononuclear cobalt(II) complexes as biomimetic models for Phenoxazinone synthase and Catecholase activity","authors":"Sadananda Kumbhakar ,&nbsp;Arabinda Muley ,&nbsp;Anushka Verma,&nbsp;Biplab Mahata,&nbsp;Aanshi Jain,&nbsp;Somnath Maji","doi":"10.1016/j.inoche.2025.115542","DOIUrl":"10.1016/j.inoche.2025.115542","url":null,"abstract":"<div><div>On a quest to understand the effect of structural modification implied within outer coordination sphere, six mononuclear pentacoordinate cobalt complexes having the molecular framework [Co^II(<strong><em>L</em></strong>^{<strong><em>n</em></strong>})Cl]X {<strong>L</strong>^{<strong>1</strong>}: tris((1H-benzo[<em>d</em>]imidazol-2-yl)methyl)amine; <em>n</em> = 1 and <strong>L</strong>^{<strong>2</strong>}: tris(<em>N</em>-methylbenzimidazol-2-ylmethyl)amine; <em>n</em> = 2 and X = Cl⁻, ClO₄⁻, PF₆⁻} were synthesized and tested for their catalytic activity towards <em>o</em>-aminophenol (OAP) and 3,5-di-tert-butyl catechol (3,5-DTBC) oxidation. For OAP oxidations, the <em>k</em>_cat values were 54.73 h⁻¹ for [<strong>1</strong>]Cl and 58.67 h⁻¹ for [<strong>2</strong>]Cl, while for catechol oxidation (CO), the values were 410.4 h⁻¹ and 483.09 h⁻¹, respectively. [<strong>1</strong>]ClO₄ and [<strong>1]</strong>PF₆ displayed less activity compared to the Cl⁻ counterpart due to change in outer coordination sphere. The complexes with methylated ligand (<strong>L</strong>^{<strong>2</strong>}) displayed enhanced catalytic activity, with the chloride-containing complex remaining the most effective overall. The change in redox behaviour of [<strong>1</strong>]Cl and [<strong>2</strong>]Cl have been observed upon successive addition of OAP and 3,5-DTBC, and the progression was closely monitored over time using cyclic voltammetry (CV). Furthermore, the formation of free radical intermediates was revealed from EPR investigation. The formation of adducts, reaction intermediates, and the involvement of molecular oxygen likely play key roles in these oxidation reactions, as strongly supported by mass spectrometric analysis.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"182 ","pages":"Article 115542"},"PeriodicalIF":5.4,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155408","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}