Applied Organometallic Chemistry最新文献

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Eco-Friendly Adsorbent: Insights Into the Performance and Adsorption Mechanisms of Banana Fruit Shaft Biochar for the Removal of Mn(II), Cd(II), Pb(II), and Cu(II)
IF 3.7 2区 化学
Applied Organometallic Chemistry Pub Date : 2025-02-24 DOI: 10.1002/aoc.70036
Dong Zhao, Shuyun Zhang, Hua Deng, Lening Hu, Anyu Li
{"title":"Eco-Friendly Adsorbent: Insights Into the Performance and Adsorption Mechanisms of Banana Fruit Shaft Biochar for the Removal of Mn(II), Cd(II), Pb(II), and Cu(II)","authors":"Dong Zhao,&nbsp;Shuyun Zhang,&nbsp;Hua Deng,&nbsp;Lening Hu,&nbsp;Anyu Li","doi":"10.1002/aoc.70036","DOIUrl":"https://doi.org/10.1002/aoc.70036","url":null,"abstract":"<div>\u0000 \u0000 <p>Exploring cost-effective and high-performance adsorbents plays a crucial role in the efficient utilization of agricultural waste and the remediation of heavy metal contamination in water bodies. This study focuses on preparing biomass carbon (<span>BC</span>) from banana pseudostems for the remediation of heavy metals in water. A systematic investigation was conducted to evaluate the effects of initial solution concentration, pH, reaction time, reaction temperature, and coexisting cations on the adsorption of Mn(II), Cd(II), Pb(II), andCu (II) by <span>BC</span>. The results showed that the adsorption capacity of <span>BC</span> for all four heavy metals reached its peak at pH 6. The adsorption process was primarily governed by monolayer chemisorption. Furthermore, the process is spontaneous, endothermic, and accompanied by an increase in entropy. In a multimetal system, <span>BC</span> demonstrated the strongest selectivity for Pb(II). Even in the presence of interfering ions, <span>BC</span> maintained a high adsorption capacity for heavy metals. Notably, after 5 cycles of use, <span>BC</span> retained a significant removal rate of 40%–60% for heavy metals, underscoring its recyclability and environmental friendliness. Characterization studies indicated that the adsorption of heavy metals by <span>BC</span> involves multiple mechanisms, including ion exchange, mineral precipitation, functional group complexation, and cation-π interactions. The dissolved organic matter (DOM) derived from biochar plays a pivotal role in the adsorption process. Furthermore, the preparation of <span>BC</span> is both straightforward and cost-effective, combining economic viability with practical applicability.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143481325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis, Characterization, DFT, TEM, Anticancer, Antibacterial, and Electrical Properties Studies of Novel VO(II), Cu(II), Ru(III), and Ag(I) Complexes With Hydrazone Derivatives
IF 3.7 2区 化学
Applied Organometallic Chemistry Pub Date : 2025-02-24 DOI: 10.1002/aoc.70073
Ehab M. Abdalla, Samar A. Aly, Alia H. Salama, Safaa S. Hassan, Ahmed M. Mongy, Tarek A. Salem, Perihan A. Khalf-Alla
{"title":"Synthesis, Characterization, DFT, TEM, Anticancer, Antibacterial, and Electrical Properties Studies of Novel VO(II), Cu(II), Ru(III), and Ag(I) Complexes With Hydrazone Derivatives","authors":"Ehab M. Abdalla,&nbsp;Samar A. Aly,&nbsp;Alia H. Salama,&nbsp;Safaa S. Hassan,&nbsp;Ahmed M. Mongy,&nbsp;Tarek A. Salem,&nbsp;Perihan A. Khalf-Alla","doi":"10.1002/aoc.70073","DOIUrl":"https://doi.org/10.1002/aoc.70073","url":null,"abstract":"<div>\u0000 \u0000 <p>Four new VO(II), Cu(II), Ru(III), and Ag(I) chelates were created from the ligand, 2-(phenylglycyl)-N-(p-tolyl)hydrazine-1-carbothioamide(H<sub>2</sub>L). The structures of the new compounds were investigated using analytical and spectroscopic techniques and supported by the theoretical DFT study. In addition, all compounds exhibited strong anticancer effects against liver (Hep-G2), breast (MCF-7), and colon (HCT-116) human cancer cell lines. VO(II) complex observed the greatest activity with IC<sub>50</sub> reached to 14, 19, and 20 μM against Hep-G2, MCF-7, and HCT-116 cell lines, respectively. Molecular docking confirmed the resulted anticancer results. Also, the compounds observed microbial growth inhibition against <i>S. pyogenes</i> and <i>E. coli</i> organisms. The transmission electron microscope (TEM) demonstrated that the pure ligand's particle size decreased when it formed complexes with various metals. The electrical examination of complexes involved measuring their conductivity and dielectric characteristics to explore their application in electrical devices.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143481326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigating 1,2,3-Bistriazole-Functionalized Sn (II) Chemosensors for COX-2 Detection
IF 3.7 2区 化学
Applied Organometallic Chemistry Pub Date : 2025-02-24 DOI: 10.1002/aoc.70085
Gurjaspreet Singh, Vinit Yadav, Anurag Dalal, Devina Sharma,  Mithun, Jigmat Stanzin, Sumesh Khurana, Manraj Singh, Aman Bhalla
{"title":"Investigating 1,2,3-Bistriazole-Functionalized Sn (II) Chemosensors for COX-2 Detection","authors":"Gurjaspreet Singh,&nbsp;Vinit Yadav,&nbsp;Anurag Dalal,&nbsp;Devina Sharma,&nbsp; Mithun,&nbsp;Jigmat Stanzin,&nbsp;Sumesh Khurana,&nbsp;Manraj Singh,&nbsp;Aman Bhalla","doi":"10.1002/aoc.70085","DOIUrl":"https://doi.org/10.1002/aoc.70085","url":null,"abstract":"<div>\u0000 \u0000 <p>This article, describe the synthesis of 4-ethynylaniline derived 1,2,3-bis-triazole (<b>3</b>) via Cu(I) catalyzed click reaction and various spectroscopic methods such as FT-IR, TGA, <sup>1</sup>H and <sup>13</sup>C NMR, and mass spectrometry are used for characterization. The probe <b>3</b> exhibits high sensitivity and selectivity to Sn (II) in UV–visible spectroscopy, with a limit of detection of 27 μM and association constant 8.32 MM<sup>−1</sup>, respectively. The synthetic sensor practical application was further explored by detecting Sn (II) in real sample analysis. The computational analysis using the DFT techniques shows the binding mechanism of sensor with Sn (II). Additionally, molecular docking investigation was conducted against cyclooxygenase-2 to shows the anti-inflammatory properties of the synthesized ligand having a good binding energy −10.26 Kcal mol<sup>−1</sup>.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143481469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recent Advances in the Application of Magnetite Nanocatalysts for CO2 Fixation Reactions
IF 3.7 2区 化学
Applied Organometallic Chemistry Pub Date : 2025-02-24 DOI: 10.1002/aoc.70029
Sara Payamifar, Majid Abdouss, Ahmad Poursattar Marjani
{"title":"Recent Advances in the Application of Magnetite Nanocatalysts for CO2 Fixation Reactions","authors":"Sara Payamifar,&nbsp;Majid Abdouss,&nbsp;Ahmad Poursattar Marjani","doi":"10.1002/aoc.70029","DOIUrl":"https://doi.org/10.1002/aoc.70029","url":null,"abstract":"<div>\u0000 \u0000 <p>The chemical synthesis via utilizing carbon dioxide as an easily accessible, low-price, nonpoisonous, and versatile C1 elementary unit is a remarkably appealing but complex and challenging conversion from the point of industrial and academic aspects. The cycloaddition of carbon dioxide (CO<sub>2</sub>) and epoxides (EPs) is an eco-friendly route in the fixation of CO<sub>2</sub> into useful cyclic carbonate (CY) products, which have been broadly operated regarding the industrial utility of polymeric and CYs. Magnetic nanocatalysts are vastly utilized in diverse organic reactions owing to their magnetic isolation and recoverability features. The usage of magnetite (Fe<sub>3</sub>O<sub>4</sub>) nanoparticles as solid support for the immobilization of a diversity of metals, bimetals, organocatalysts, and organoligands has shown massive development in benign organic conversions largely owing to their enormous surface area, low-cost nature, and ease of preparation. The significant benefits of magnetic nanocatalysts are superior yields, short-time reaction, moderate reaction conditions, recyclability, and easy workup. This current review highlights the applications of magnetite nanocatalysts in the chemical fixation of CO<sub>2</sub> into CYs. This research will be helpful and valuable to researchers due to the reaction of cycloaddition of CO<sub>2</sub> to EPs to make CY intermediates significantly employed for the synthesis of an extensive diversity of organic compound products.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143481323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Green Approach for the Large-Scale Synthesis of a Metal–Organic Framework Derived From Perylene and Copper: A Fluorometric Sensor for Sm (III)
IF 3.7 2区 化学
Applied Organometallic Chemistry Pub Date : 2025-02-22 DOI: 10.1002/aoc.70084
Samika Anand, Abhishek Kumar, Kalathiparambil Rajendra Pai Sunajadevi, Channabasaveshwar V. Yelamaggad
{"title":"Green Approach for the Large-Scale Synthesis of a Metal–Organic Framework Derived From Perylene and Copper: A Fluorometric Sensor for Sm (III)","authors":"Samika Anand,&nbsp;Abhishek Kumar,&nbsp;Kalathiparambil Rajendra Pai Sunajadevi,&nbsp;Channabasaveshwar V. Yelamaggad","doi":"10.1002/aoc.70084","DOIUrl":"https://doi.org/10.1002/aoc.70084","url":null,"abstract":"<div>\u0000 \u0000 <p>The detection of samarium (Sm) and its isotopes/ions is gaining significant importance across various fields, including nuclear energy, materials science, environmental monitoring, and biomedicine. Accurate and sensitive detection methods are crucial for ensuring safety, quality control, and compliance with regulatory standards. Despite the growing need, existing detection strategies often face challenges such as being time-consuming, inaccurate, cumbersome, and expensive. Surprisingly, fluorometric sensing has been explored minimally for Sm detection. In this study, we introduce a novel approach for detecting Sm (III) ions using a fluorescent metal–organic framework (MOF), Cu-PTC, synthesized via a one-pot, green, room temperature method. This represents the first reported use of a fluorescent MOF for Sm (III) detection. The Cu-PTC MOF was synthesized using the potassium salt of perylene-3,4,9,10-tetracarboxylic acid and Cu (II) ions from Cu (OAc)<sub>2</sub>. Structural analysis revealed the formation of a 3D network with well-defined pores. Photophysical characterization confirmed the absorption and emission properties of Cu-PTC. The MOF was successfully employed for the selective detection of Sm (III) ions, with a detection limit of 6.53 μM.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143466217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lanthanum(III) Coordination Polymer Decorated With 2,1,3-Benzoxadiazole Units for Sensitive Luminescent Recognition of Sulfate Anion
IF 3.7 2区 化学
Applied Organometallic Chemistry Pub Date : 2025-02-21 DOI: 10.1002/aoc.70082
Evgeny R. Dudko, Dmitry I. Pavlov, Alexey A. Ryadun, Tatiana Y. Guselnikova, Vladimir P. Fedin, Xiaolin Yu, Andrei S. Potapov
{"title":"Lanthanum(III) Coordination Polymer Decorated With 2,1,3-Benzoxadiazole Units for Sensitive Luminescent Recognition of Sulfate Anion","authors":"Evgeny R. Dudko,&nbsp;Dmitry I. Pavlov,&nbsp;Alexey A. Ryadun,&nbsp;Tatiana Y. Guselnikova,&nbsp;Vladimir P. Fedin,&nbsp;Xiaolin Yu,&nbsp;Andrei S. Potapov","doi":"10.1002/aoc.70082","DOIUrl":"https://doi.org/10.1002/aoc.70082","url":null,"abstract":"<div>\u0000 \u0000 <p>One-dimensional coordination polymer <b>La-CP</b>, {[La(H<sub>2</sub>O)<sub>2</sub>(HL<sub>O</sub>) (L<sub>O</sub>)]·H<sub>2</sub>O}<sub>n</sub> containing a new luminescent ligand 4,7-di(4-carboxypyrazol-1-yl)-2,1,3-benzoxadiazole (H<sub>2</sub>L<sub>O</sub>) was synthesized. Upon excitation at 400 nm, the compound shows a strong emission with the maximum at 550 nm with high photoluminescence quantum yield of 43%. <b>La-CP</b> demonstrates sensing properties toward aluminum and gallium cations, as well as dihydrogen phosphate and sulfate anions through the emission enhancement response. The limits of detection were 0.42, 0.70, 0.37, and 0.40 μM, respectively. <b>La-CP</b> is the first example of a sensor for sulfate anion among all types of coordination polymers. The uptake of the analytes under the sensing conditions was evaluated, and a strong absorption enhancement as a result of such uptake was proposed as a probable emission response mechanism.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143466171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Organosilane Functionalized Graphene Oxide Nanocomposite as Fluorescent Chemosensor for the Detection of Tyrosine in Aqueous Medium
IF 3.7 2区 化学
Applied Organometallic Chemistry Pub Date : 2025-02-20 DOI: 10.1002/aoc.70081
Gurjaspreet Singh, Swati Devi, Akshpreet Singh, Samiksha Sharma, Devina Sharma, Pallavi Markan, Harshbir Kaur, Necmi Dege, Seher Meral
{"title":"Organosilane Functionalized Graphene Oxide Nanocomposite as Fluorescent Chemosensor for the Detection of Tyrosine in Aqueous Medium","authors":"Gurjaspreet Singh,&nbsp;Swati Devi,&nbsp;Akshpreet Singh,&nbsp;Samiksha Sharma,&nbsp;Devina Sharma,&nbsp;Pallavi Markan,&nbsp;Harshbir Kaur,&nbsp;Necmi Dege,&nbsp;Seher Meral","doi":"10.1002/aoc.70081","DOIUrl":"https://doi.org/10.1002/aoc.70081","url":null,"abstract":"<div>\u0000 \u0000 <p>In the present article, a selective and efficient sensor based on organosilane functionalized graphene oxide nanocomposites has been synthesized for the fluorometric detection of tyrosine (Tyr). The 1,2,3-triazole functionalized organosilane has been synthesized by a condensation reaction between 4-(methylthio) aniline and alkylated benzaldehyde followed by azide-alkyne cycloaddition reaction using Cu (I) catalyst. The synthesized organosilane has been fabricated on graphene oxide nanoparticles and the obtained graphene-functionalized organosilane (<b>GO-Silane</b>) was characterized by FTIR and XRD. The morphology of the nanocomposite film was analyzed using scanning electron microscopy. The photophysical properties of <b>GO-Silane</b> were studied which established its selective sensor for tyrosine with the limit of detection values of 1.04 × 10<sup>−8</sup> M with a response time of 8 s. The strong coordinated interactions of <b>GO-Silane</b> for the Tyr have been confirmed from FTIR spectra of the GO-Silane-Tyr complex. The competitive amino acid interference assay successfully demonstrated the selectivity of the nanocomposite sensor.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143456132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced Photocatalytic and Electrochemical Application of Combustion-Synthesized Nb2O5/MgO/Fe2O3 Nanocomposites
IF 3.7 2区 化学
Applied Organometallic Chemistry Pub Date : 2025-02-19 DOI: 10.1002/aoc.70074
Mir Waqas Alam, Ghayah M. Alsulaim, Shada A. Alsharif, Kholoud M. Alnahdi, Nourah F. Almuhawish, Mohammed Awad
{"title":"Enhanced Photocatalytic and Electrochemical Application of Combustion-Synthesized Nb2O5/MgO/Fe2O3 Nanocomposites","authors":"Mir Waqas Alam,&nbsp;Ghayah M. Alsulaim,&nbsp;Shada A. Alsharif,&nbsp;Kholoud M. Alnahdi,&nbsp;Nourah F. Almuhawish,&nbsp;Mohammed Awad","doi":"10.1002/aoc.70074","DOIUrl":"https://doi.org/10.1002/aoc.70074","url":null,"abstract":"<p>The development of advanced nanocomposites has the potential to greatly enhance the detection of hazardous chemicals in the environment. This research focuses on synthesizing and characterizing Nb<sub>2</sub>O<sub>5</sub>/MgO/Fe<sub>2</sub>O<sub>3</sub> nanocomposites to address existing limitations and offer sustainable solutions. The X-ray diffraction (XRD) study confirms the phase formation and crystalline nature of the nanocomposites with an average particle size of 55 nm. Fourier-transform infrared (FTIR) spectroscopy confirms the presence of functional groups in the nanocomposite. UV–visible spectroscopy of the prepared Nb<sub>2</sub>O<sub>5</sub>/MgO/Fe<sub>2</sub>O<sub>3</sub> nanocomposite reveals synergistic interactions among the phases, leading to a remarkable reduction in the bandgap (2.2 eV). Scanning electron microscopy (SEM) provides insights into the surface morphology of the nanocomposite. Zeta potential analysis reveals a surface charge of −32.5 mV, indicating excellent stability. Photocatalytic studies show effective dye degradation at an optimized catalyst concentration of 20 mg in 40 ppm dye solutions under UV irradiation. Furthermore, its porous structure and high surface area contribute to superior photocatalytic degradation of azo dyes and efficient electrochemical detection of mercury chloride and dextrose in 0.1 M of HCl medium. Additionally, the photocatalytic efficiency of Nb<sub>2</sub>O<sub>5</sub>/MgO/Fe<sub>2</sub>O<sub>3</sub> was evaluated for the degradation of azo dyes, such as fast orange red and direct green dyes, under UV irradiation. Systematic optimization of variables including catalyst dosage, dye concentration, and irradiation time significantly enhanced photocatalytic performance. The results confirm the nanocomposite's strong potential in environmental remediation through effective photocatalytic degradation of organic pollutants and its advanced sensing capabilities for detecting hazardous substances, which make this a versatile material with impactful applications in wastewater treatment and electrochemical sensing.</p>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aoc.70074","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143447061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of Pectin and Aloe vera Extract in Green Synthesis and Enhanced Stability and Antioxidant Activity of Calcium Nanostructure
IF 3.7 2区 化学
Applied Organometallic Chemistry Pub Date : 2025-02-19 DOI: 10.1002/aoc.70077
Sadegh Rahmati, Vahid Tavallali, Mohammad Hasan Ghasvari Jahromi
{"title":"Comparison of Pectin and Aloe vera Extract in Green Synthesis and Enhanced Stability and Antioxidant Activity of Calcium Nanostructure","authors":"Sadegh Rahmati,&nbsp;Vahid Tavallali,&nbsp;Mohammad Hasan Ghasvari Jahromi","doi":"10.1002/aoc.70077","DOIUrl":"https://doi.org/10.1002/aoc.70077","url":null,"abstract":"<div>\u0000 \u0000 <p>The current work aims to synthesize calcium nanostructure (Ca NS) using a green approach, given the growing trend of Ca NS in various sciences. We present the synthesis of Ca NS utilizing <i>aloe vera</i> extract and pectin extracted from citrus for the first time. Through the use of several analytical techniques, including ultraviolet–visible (UV-Vis), dynamic light scattering (DLS), Fourier transform infrared (FT-IR), x-ray diffraction (XRD), Raman, transmission electron microscopy <b>(</b>TEM), and scanning electron microscopy (SEM), the Ca nanostructures were verified and characterized. According to UV-Vis spectrum, a peak in the blue area of 204 nm for pectin–Ca NS indicated a small size nanoparticle. But for <i>aloe vera</i>/Ca NS, the presence of two blue and red peaks, at 227 and 401 nm, showed that nanoparticles with larger size than pectin/Ca NS. The results of the zeta potential showed that the synthesis of Ca NS with both pectin and <i>aloe vera</i> extracts is very stable. But pectin/Ca NS is more stable. In FT-IR and Raman spectrum, the presence of more peaks in pectin/Ca NS indicates a more complex structure and more agent groups than <i>Aloe vera</i>/Ca NS. In the XRD spectrum, in pectin/Ca NS and <i>Aloe vera</i>/Ca NS, calcium peak was well identified and showed that complete calcium synthesis has been performed. The SEM and TEM pictures of pectin/Ca NP and <i>Aloe vera</i>/Ca NS show the spherical shapes and average size around 4–18 nm for nanoparticles. In addition, the antioxidant capacity of Ca NSs was taken into account. The outcomes demonstrated that pectin has superior qualities and is a promising candidate for synthesizing Ca NSs. It was discovered that the Ca NSs had a very powerful anti-DPPH free radical effect.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143447060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Crystal Structures and Corrosion Inhibitions of Three Cobalt Complexes of Terephthalate Anion and Bis-Nitrogen Donor Ligands
IF 3.7 2区 化学
Applied Organometallic Chemistry Pub Date : 2025-02-18 DOI: 10.1002/aoc.70025
Hassan H. Hammud, Nusaybah Alotaibi, Nasreen Al Otaibi, Saurav Bhattacharya, Ulrich Kortz, Basem F. Ali, Sehrish Sarfaraz, Khurshid Ayub
{"title":"Crystal Structures and Corrosion Inhibitions of Three Cobalt Complexes of Terephthalate Anion and Bis-Nitrogen Donor Ligands","authors":"Hassan H. Hammud,&nbsp;Nusaybah Alotaibi,&nbsp;Nasreen Al Otaibi,&nbsp;Saurav Bhattacharya,&nbsp;Ulrich Kortz,&nbsp;Basem F. Ali,&nbsp;Sehrish Sarfaraz,&nbsp;Khurshid Ayub","doi":"10.1002/aoc.70025","DOIUrl":"https://doi.org/10.1002/aoc.70025","url":null,"abstract":"<div>\u0000 \u0000 <p>Three Co(II) complexes of terephthalate anion containing 1,10-phenanthroline (phen) or 2,2′-bipyridine (2,2′-bipy), are prepared. The structures of dimeric [Co<sub>2</sub>(H<sub>2</sub>O)<sub>4</sub>(μ-H<sub>2</sub>O)<sub>2</sub>(phen)<sub>2</sub>]<sup>4+</sup>·2(C<sub>8</sub>H<sub>4</sub>O<sub>4</sub><sup>2−</sup>), <b>1</b>, and the polymeric [Co<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub>(phen)<sub>2</sub>(μ-C<sub>8</sub>H<sub>4</sub>O<sub>4</sub>)<sub>2</sub>]<sub>n</sub>, <b>2</b>, complexes were confirmed by single crystal structure determination. Both complexes have CoN<sub>2</sub>O<sub>4</sub> core in a distorted octahedral arrangement. Extensive hydrogen bonding and π–π stacking interactions consolidate 3-D structures in <b>1</b> and <b>2</b>. Complex <b>3</b>, [Co(μ-C<sub>8</sub>H<sub>4</sub>O<sub>4</sub>)(2,2′-bipy)]<sub>n</sub>, was previously reported. It has CoN<sub>2</sub>O<sub>4</sub> core in a distorted trigonal prismatic environment. Complexes <b>1</b>, <b>2</b> and <b>3</b> exhibited good inhibition efficiencies for corrosion of carbon steel in 0.25-M sulfuric acid solution. The order of corrosion inhibiting effect of the complexes was <b>2</b> (94.6%) &gt; <b>1</b> (90.5%) &gt; <b>3</b> (79.5%). The increase in <i>R</i><sub>p</sub> value and the decrease in <i>C</i><sub>dl</sub> were in parallel with the increase in the concentration of complexes. Tafel plot indicated that complex <b>1</b> behaved as a cathodic-type corrosion inhibitor, whereas complexes <b>2</b> and <b>3</b> as anodic inhibitors for C-steel in sulfuric acid medium. Weight loss measurement of steel samples in 1-M HCl showed more inhibition of corrosion by complexes <b>1</b> and <b>2</b> than by complex <b>3</b>. The adsorption mechanism of inhibitors on C-steel followed Langmuir isotherm. The free energy changes indicated comprehensive physical and chemical adsorption for the three complexes on the surface of the C-steel. SEM analysis of steel samples in 1-M HCl proved the efficiency of complexes in retarding corrosion as the steel surface showed smoothness compared to the blank. Quantum chemical DFT study declared that the highest corrosion inhibition efficiency is observed for complex <b>2</b>, which was strongly supported by the electrochemical anticorrosion studies. The results of the TGA analysis support the X-ray crystal structures of the complexes.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143439147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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