Inorganic Chemistry Communications最新文献

{"title":"Single atom catalysis perspective to reveal N2 and NRR intermediate adsorption properties on non-benzenoid carbon allotrope: A DFT study","authors":"A.E. Genç","doi":"10.1016/j.inoche.2025.114520","DOIUrl":"10.1016/j.inoche.2025.114520","url":null,"abstract":"<div><div>In this work, the adsorption behavior of N₂ and the Nitrogen Reduction Reaction (NRR) intermediates have been explored on TM (3d group from Sc to Ni) embedded non-benzenoid Carbon Allotrope (BPN) employing density functional theory calculations. Following the exploration of the stability of the transition metal atoms embedded on two different defective sites on BPN, the fundamental electronic properties, such as atomic charges, and other chemical bonding properties, such as (COHP and COBI) have been elucidated. Then, the molecular adsorption behaviors were investigated to determine the best material and possible NRR pathway. Our findings show that the N₂ molecule is adsorbed in end-on geometry, which implies that the distal/alternate (or their mixture) pathway might be mostly followed to synthesize NH₃, also supported by the bond length variations of reaction intermediates, which support N-N bond scission during the reaction. A discussion was made to predict NNH* adsorption energy through chemical bonding descriptors belonging to the bare TM embedded layers. The most striking aspect of this work, ICOBI is a very effective descriptor for predicting the adsorption energy of the NNH* intermediate, which is crucial for the NRR process. Finally, Fe-BPN layer is predicted to have a best selectivity in favor of NRR, while Sc-BPN layer promotes HER.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"178 ","pages":"Article 114520"},"PeriodicalIF":4.4,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855127","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":"Enhancing photovoltaic performance of Cu2MgSnS4-based thin-film solar cells by Fe doping: Homojunction fabrication and conductivity modulation","authors":"Peer Mohamed Sanjitha Banu ,&nbsp;Sabarinathan Venkadachalam ,&nbsp;Johnson Henry ,&nbsp;Ganesan Sivakumar ,&nbsp;Kannusamy Mohanraj","doi":"10.1016/j.inoche.2025.114509","DOIUrl":"10.1016/j.inoche.2025.114509","url":null,"abstract":"<div><div>This report describes the preparation of pure Cu₂MgSnS₄ (CMTS) and Fe-doped Cu₂Mg_(1-x)Fe_xSnS₄ (x = 0.1,0.2,0.3) thin films by thermal evaporation method onto the FTO substrates. The XRD patterns of the prepared CMTS thin films showed a tetragonal structure. From Raman’s analysis, we found that all the fabricated thin films showed the existence of S-S vibration in the CuS phase. The UV–visible analysis showed that the band gap of the films decreased while increasing the Fe-concentration from 2.35 eV to 1.68 eV. In the Mott Schottky analysis, we found that pure Cu₂MgSnS₄ and Cu₂Mg_0.9Fe_0.1SnS₄ exhibit p-type conductivity while n-type for Cu₂Mg_0.8Fe_0.2SnS₄ and Cu₂Mg_0.8Fe_0.2SnS₄ films due to shifting the Fermi-energy level. The TEM image showed that the dopant Fe reduced the particle size from 69 to 29 nm. The carrier concentration increased from 5.01x10¹⁴ to 2.31x10¹⁵ m⁻³ while increasing the concentration of the dopant Fe thin films as measured from the Mott-Schottky plot. The photoconversion efficiency of FTO/CMTS/CMFTS/Au solar cell configuration is increased from 2.96 % to 6.26 % while increasing the concentration of the dopant Fe.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"178 ","pages":"Article 114509"},"PeriodicalIF":4.4,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143860114","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":"Exploring the antimicrobial, antioxidant efficacies and computational studies of tridentate ligands derived from xanthene Schiff base and their mononuclear diorganotin(IV) complexes","authors":"Anju Ragshaniya ,&nbsp;Sonika Asija ,&nbsp;Kashmiri Lal ,&nbsp;Yogesh Deswal ,&nbsp;Neeraj Mohan Gupta ,&nbsp;Pinki Barwa ,&nbsp;Shikha Poonia","doi":"10.1016/j.inoche.2025.114543","DOIUrl":"10.1016/j.inoche.2025.114543","url":null,"abstract":"<div><div>In response to the growing need for new therapeutic agents, we have synthesized twelve new diorganotin(IV) complexes derived from xanthene derivatives through multistep reactions and structurally characterized using various spectral techniques, including, NMR, HRMS, FTIR, single crystal X-RD <em>etc</em>. The crystal structure of complex <strong>7</strong> reveals the ligand is bound to the diphenyltin(IV) moiety in a tridentate ONO manner, producing a square pyramidal geometry. The <em>in-vitro</em> antimicrobial efficacy of the synthesized compounds was screened using numerous strains <em>via</em> the serial dilution method. Xanthene derived diorganotin(IV) complexes were found to be more active than Schiff base ligands. Complexes <strong>7</strong> (MIC range = 0.0047–0.0098 µmol/mL), <strong>14</strong> (MIC range = 0.0045–0.0091 µmol/mL), and <strong>15</strong> (MIC range = 0.0043–0.0086 µmol/mL) exhibited comparable activity with reference drug towards microbial strains. Antimicrobial activity for diorganotin(IV) complexes follows the order as diphenyltin &gt; dibutyltin &gt; diethyltin &gt; dimethyltin. Further, antioxidant potency was assessed <em>via</em> the DPPH assay using ascorbic acid as a reference. Results indicated that the incorporation of metal moiety and presence of hydroxyl group, led to comparable antioxidant activity in all synthesized complexes. Complex <strong>11</strong> (IC₅₀ = 3.1 µM) exhibited higher activity. Additionally, variable quantum parameters and optimized geometry of ligand <strong>3</strong> and its corresponding complexes <strong>12</strong>–<strong>15</strong> were figured out by DFT.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"178 ","pages":"Article 114543"},"PeriodicalIF":4.4,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850413","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 of γ-alumina/chitosan/CeO2/SrO nanohydrogel for levofloxacin delivery","authors":"Rabia Rasheed ,&nbsp;Hina Afzal ,&nbsp;Muhammad Babar Taj ,&nbsp;Noushi Zaidi ,&nbsp;Ahmad Raheel ,&nbsp;Walla Alelwani ,&nbsp;Ismat Bibi ,&nbsp;Saad Alghamdi ,&nbsp;Fawad Ahmad ,&nbsp;Omar Makram Ali ,&nbsp;Aamir Nawaz ,&nbsp;Muhammad Imran Khan ,&nbsp;Abdallah Shanableh","doi":"10.1016/j.inoche.2025.114557","DOIUrl":"10.1016/j.inoche.2025.114557","url":null,"abstract":"<div><div>Developing efficient and regulated medication delivery systems is a crucial advancement for improving medical outcomes and reducing side effects in healthcare. In this regard, we have formed a novel nano hydrogel system made of gamma-alumina, chitosan, cerium oxide, and strontium oxide (γ-Al/CS/CeO₂/SrO) through wet chemical techniques. The chemical structure, optical properties, charge, size, shape, surface area, and pH of the synthesized nano hydrogel carrier were characterized using techniques such as FTIR spectroscopy, UV–visible spectroscopy, Zeta potential analysis, PXRD, SEM, BET analysis, and PZC determination. The BET analysis of the γ-Al/CS/CeO₂/SrO nanocarrier indicated a specific surface area of 9.195504 × 10¹ m²/g. XRD confirmed the average crystalline sizes of CeO₂/SrO nanoparticles and the nano hydrogel as 10.3 nm and 78.9 nm, respectively. UV–visible spectroscopy showed a band gap of 5.58 eV. The size (0.1 μm) of the levofloxacin (LFX) loaded γ-Al/CS/CeO₂/SrO nanosystem was analyzed using dynamic light scattering (DLS). LFX was the model drug for loading and release studies, achieving maximum loading efficiencies of 64 %, 90 %, and 78 % in acidic, phosphate buffer saline (PBS), and basic media, respectively. A distinct peak corresponding to the C–F stretch was observed at 869 cm⁻¹ in the FTIR spectra, and the zeta potential changed from −7.13 to +0.33 mv, indicating that levofloxacin had been successfully loaded onto the nano hydrogel system. The highest percentage of drug release recorded was 45.8 %, 79.5 %, and 19.6 % in acidic, phosphate buffer saline, and basic media, respectively. Different kinetic models, including zero order, first order, Higuchi, Hixson Crowell, Korsmeyer Peppas, and Peppas Sahlin, were utilized to analyze the drug release profile to identify the most suitable one. The Peppas Sahlin and Zero order models, displaying R² values of 0.9678 and 0.9642, respectively, were the most accurate models for characterizing the controlled release of levofloxacin. The Korsemeyer Peppas model revealed a diffusion release exponent “n” value of 0.926 (with 0.45 &lt; n &lt; 1.0) in the basic medium, indicating that the drug release mechanism followed anomalous (non-Fickian) diffusion, suggesting that both diffusion and dissolution processes influence the release. These findings highlight the potential of the developed γ-alumina/chitosan/CeO₂/SrO nano hydrogel as a drug delivery nanocarrier with controlled release characteristics, paving the way for future research and applications.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"178 ","pages":"Article 114557"},"PeriodicalIF":4.4,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143869045","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":"Advantageous development of PbS/ZnS nanocomposite photocatalysts from underutilized ionic precursors of solar paints","authors":"Ifrah Majeed ,&nbsp;Faizan Raza ,&nbsp;Syed Imran Abbas Shah ,&nbsp;Abdul Khaliq ,&nbsp;Muhammad Imran Khan ,&nbsp;Muhammad Tajammal Chughtai ,&nbsp;Wajdi Rajhi ,&nbsp;Azka Shahid Ejaz ,&nbsp;Muhammad Abdul Basit","doi":"10.1016/j.inoche.2025.114540","DOIUrl":"10.1016/j.inoche.2025.114540","url":null,"abstract":"<div><div>Under-utilized ionic precursors of successive ionic layer adsorption and reaction (SILAR) processes have been used to develop nanoscale metal chalcogenide particles previously. In this work, we have modified the salvaging approach to produce the nanocomposites (NCs) of PbS and ZnS, strategically named as PbS/ZnS (NC-1) and PbS/ZnS (NC-2), owing to the stoichiometric difference evolved between them during the salvaging methods. The PbS/ZnS NCs offered superior optical, electronic, and electrochemical characteristics than PbS and ZnS individually. PbS/ZnS (NC-1) exhibited enhanced light absorbance as revealed by UV–Vis spectroscopy and thus a better electrochemical current density-relevant behavior (as a function of Potential Vs RHE). As indicated by EIS, PbS/ZnS (NC-2) possessed an appreciable tendency to govern the degradation of toxic Rhodamine B (RhB) dye under solar light having UV and Visible range of radiation concomitantly. The dye degradation results showed a significant increase in the dye degradation rate up to 65% for PbS/ZnS for NC-1 and 85% for PbS/ZnS NC-2. Inventively developed PbS/ZnS NCs from under-utilized (waste) ionic precursors of SILAR were also analyzed in-depth using SEM, EDS, EIS, XRD, etc., to widen the scope of the work which suggests that simple modifications in the salvaging approach can facilitate the development of more versatile NCs of metal chalcogenides simplistically and proficiently from the underutilized ionic precursors used in the development of solar paints <em>via</em> SILAR.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"178 ","pages":"Article 114540"},"PeriodicalIF":4.4,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859555","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":"2D electronic Materials: Integration strategies for electronics and optoelectronics","authors":"Juhi Jannat Mim ,&nbsp;SM Maksudur Rahman ,&nbsp;Safiullah Khan ,&nbsp;Md. Aminul Islam ,&nbsp;Rifat Hossain Shuvo ,&nbsp;Nayem Hossain","doi":"10.1016/j.inoche.2025.114545","DOIUrl":"10.1016/j.inoche.2025.114545","url":null,"abstract":"<div><div>The unique structural, electrical, and optical properties of two-dimensional (2D) electronic materials including graphene, transition metal dichalcogenides (TMDs), and hexagonal boron nitride (h-BN), are making them revolutionary building blocks for advanced electronics and optoelectronics. The integration strategies of these materials will be discussed in the present review to facilitate next-generation electronic and optoelectronic devices. It includes basics of 2D materials, growth techniques, and integrated methods such as monolithic as well as photonic circuit-based integration. We discuss recent developments regarding 2D material integration, highlight challenges to scaling their functionality, and outline routes toward addressing these limits. An important focus of this review is to describe how the mechanical exfoliation, chemical vapor deposition, and transfer techniques used in developing high-quality 2D films affect the performance of a device as well as describe how hybrid heterostructures can be used towards enhanced device performance. An analytical overview of the field shows that 2D materials allow for high-performance photodetector sensitivity, light-emitting diodes, and transistors operating at radio frequencies but defects and uniformity hinder the integration of this technology on a large scale. Based on a thorough review, this paper demonstrates the exceptional potential of two-dimensional (2D) electronic materials for emerging applications in energy-efficient optoelectronics, flexible electronics, and biosensing. These insights are expected to guide research across disciplines and enable scalable, reliable devices that will fulfill essential applications in communications, health care, and energy.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"178 ","pages":"Article 114545"},"PeriodicalIF":4.4,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850412","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":"Bismuth-based photocatalysts for formaldehyde photodegradation: a review and prospects","authors":"Gang Yan ,&nbsp;Xuzheng Cao ,&nbsp;Qi Zhao ,&nbsp;Wei Hu ,&nbsp;Zhenxun Zhao ,&nbsp;Hongfei Shi","doi":"10.1016/j.inoche.2025.114547","DOIUrl":"10.1016/j.inoche.2025.114547","url":null,"abstract":"<div><div>In the last several decades, Bismuth (Bi)-based photocatalysts have received widespread attention in the area of formaldehyde (FA) photodegradation because of their visible light response characteristics, unique layered structure, tunable electronic band structure. Although Bi-based photocatalysts has inherent advantages, its solar energy conversion and mineralization efficiency still needs to be significantly improved. In order to enhance their photocatalytic performance, many research investigations are conducted out. The preparation techniques for Bi-based catalysts and various methods to improve the effectiveness of photocatalytic degradation are systematically discussed in this article. In addition, this review provides a detailed introduction of FA degradation by different Bi-based photocatalysts, aiming to explore the performance of Bi-based catalysts in FA degradation. This review provides fresh concepts for designing more efficient, green, and stable Bi-based photocatalysts, while offering valuable insights for their practical application in the degradation of indoor pollutants. Lastly, it discusses the future prospects and challenges of Bi-based photocatalytic materials.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"178 ","pages":"Article 114547"},"PeriodicalIF":4.4,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143847905","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 facile fluorescence Zr-MOF probe for selective sensing tetracycline in water","authors":"Mingyu Gu ,&nbsp;Minrui Sun ,&nbsp;Yang Lu ,&nbsp;Dechang Zeng ,&nbsp;Jiahui Zhao ,&nbsp;Zihan Chang ,&nbsp;Xin Deng ,&nbsp;Xingyang Zhou ,&nbsp;Yangyang Hu ,&nbsp;Erdeng Du ,&nbsp;Yanqiu Zhang ,&nbsp;Mingguo Peng","doi":"10.1016/j.inoche.2025.114548","DOIUrl":"10.1016/j.inoche.2025.114548","url":null,"abstract":"<div><div>Tetracycline(TC), owning to its widely utilized as an antimicrobial agent, has become one of the prevalent contaminants in aquatic environments. Consequently, developing precise methods for detecting TC residues in water is crucial. Herein, we present a facile method for TC fluorescence sensing utilizing Zr-MOF (MOF-808). MOF-808 exhibits exceptional luminescence properties, maintaining stability in water for up to 10 days and across a broad pH range of 3–12. Detection results indicated that MOF-808 served as an efficient luminescent probe for TC detection in aqueous solutions, demonstrating high sensitivity with a low detection limit of 7.26 nM and a rapid response time within 10 s. Notably, MOF-808 displayed high selectivity for TC over other common anions and metal cations in water. The sensing mechanism was elucidated through comprehensive analysis, revealing that the internal filtration effect (IFE) induced the fluorescence quenching of MOF-808. The interaction between TC and MOF-808 was crucial for the preconcentration of TC, leading to a swift fluorescent response with high quenching efficiency. The practical applicability of MOF-808 was further confirmed by its successful detection of TC in real environmental water samples.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"178 ","pages":"Article 114548"},"PeriodicalIF":4.4,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143864345","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":"Natural Moroccan phosphate for Astrazon Orange G dye removal: Performance analysis and breakthrough curves modeling","authors":"Fatima Zahra Falil ,&nbsp;Noura Najid ,&nbsp;Fouad Allam ,&nbsp;Bouchaib Gourich ,&nbsp;Christophe Vial ,&nbsp;Fabrice Audonnet ,&nbsp;Mohamed Chaker Necibi","doi":"10.1016/j.inoche.2025.114544","DOIUrl":"10.1016/j.inoche.2025.114544","url":null,"abstract":"<div><div>This research paper presents the first experimental results obtained using Moroccan Phosphate Rock (MPR) as adsorbent for the removal of Astrazon Orange G (AOG) from wastewater in a fixed-bed column adsorption. Firstly, the MPR was characterized by different techniques, namely Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). Nitrogen sorption analysis shows that the BET specific surface area and pore volume of the sample are 18 m².g⁻¹ and 0.11 cm³.g⁻¹, respectively. The effects of operating parameters on the fixed-bed column performance are examined, including initial AOG concentration (10–39 mg.L^-1), flow rate (5–30 mL.min⁻¹), and bed height (3.8–15 cm). Experimental data showed that the adsorption column’s maximum capacity varied between 1.44 and 3.00 mg.g⁻¹, the rather than its removal efficiency was found to be varied from 20.01 to 38.8 %. Additionally, residence time distribution (RTD) analysis highlighted the influence of flow rate on axial dispersion and flow uniformity, confirming that higher flow rates reduce residence time heterogeneity and shift the system toward more plug-flow-like behavior. Dynamic adsorption models, including the Thomas, Bohart-Adams, Yoon-Nelson, Bed Depth Service Time (BDST), and their corresponding modified logarithmic models were applied to predict the asymmetric breakthrough curves obtained from the fixed-bed column adsorption tests. According to the results, MPR fixed-bed column for AOG removal was well fitting logarithmic models. It can be concluded that the low specific surface area, heterogeneous particle size distribution, weak intraparticle, and surface diffusion of MPR were responsible on the asymmetrical curves. In addition, the bed regeneration was conducted at room temperature using acetic acid (0.1 N), and the results showed that the MPR could be efficiently reused for four consecutive cycles. Finally, the natural Moroccan phosphate rock could be employed as a potential adsorbent to remove azo dyes from wastewater.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"178 ","pages":"Article 114544"},"PeriodicalIF":4.4,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143860110","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":"2,5-Pyrazine dicarboxylic acid ligand bridged symmetrical dinuclear ruthenium(II) complexes: Synthesis, structure and spectroelectrochemical properties","authors":"Thangavel Sathiya Kamatchi ,&nbsp;Thomas Michael Scherer ,&nbsp;Rajendran Dinesh ,&nbsp;Giriraj Kalaiarasi ,&nbsp;Subramanian Muthumari ,&nbsp;Horst Puschmann ,&nbsp;Wolfgang Kaim ,&nbsp;Karuppannan Natarajan","doi":"10.1016/j.inoche.2025.114539","DOIUrl":"10.1016/j.inoche.2025.114539","url":null,"abstract":"<div><div>The discovery of the pyrazine-bridged mixed-valent Creutz-Taube complex has triggered substantial focus on ligand-bridged symmetrical dinuclear ruthenium complexes to investigate intermetallic electronic coupling towards versatile applications. In this context, the synthesis, structure, electrochemical and spectroelectrochemical characterization of two redox-active symmetrical diruthenium complexes [(PPh₃)₂H(CO)Ru(μ-L)Ru(CO)H(PPh₃)₂] (<strong>1</strong>) and [(AsPh₃)₂H(CO)Ru(μ-L)Ru(CO)H(AsPh₃)₂] (<strong>2</strong>), (L = pzdca = 2,5-pyrazine dicarboxylate) was undertaken. Structural characterization unveils the presence of diruthenium units bridged by a bis-bidentately coordinated 2,5-pyrazine dicarboxylate ligand. Cyclic voltammetry, in conjunction with IR, EPR, and UV–Vis-NIR spectroelectrochemical studies, showed that complex <strong>1</strong> exhibited an irreversible oxidation, but a reversible one-electron reduction and that <strong>1^-</strong> could be studied by the given techniques, which revealed the expected bridging ligand-centred reduction process. Complex <strong>1</strong> had reversible electrochemical behaviour and witnessed the generation of a radical bridge [(PPh₃)₂H(CO)Ru^II(μ-pzdca^●–)Ru^II(CO)H(PPh₃)₂].</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"178 ","pages":"Article 114539"},"PeriodicalIF":4.4,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143843473","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}