Research on Chemical Intermediates最新文献_第4页

Opto-electronic studies and diode applications: synthesis, characterization, and photoconductive properties of Schiff base and its Pd(II) and Pt(II) complexes 光电研究和二极管应用：希夫碱及其Pd（II）和Pt（II）配合物的合成、表征和光导性质

IF 2.8 3区化学

Research on Chemical Intermediates Pub Date : 2025-03-12 DOI: 10.1007/s11164-025-05547-y

Nevin Turan, Kenan Buldurun, Halil Seymen, Bayram Gündüz, Naki Çolak

{"title":"Opto-electronic studies and diode applications: synthesis, characterization, and photoconductive properties of Schiff base and its Pd(II) and Pt(II) complexes","authors":"Nevin Turan, Kenan Buldurun, Halil Seymen, Bayram Gündüz, Naki Çolak","doi":"10.1007/s11164-025-05547-y","DOIUrl":"10.1007/s11164-025-05547-y","url":null,"abstract":"<div><p>This research involved the creation of a Schiff base ligand, (<i>E</i>)-6-tert-butyl 3-ethyl 2-(3-methoxy-4-phenoxybenzylideneamino)-4,5-dihydrothieno[2,3-<i>c</i>]pyridine-3,6(7H)-dicarboxylate (SB), through the condensation reaction of 6-tert-butyl 3-ethyl 2-amino-4,5-dihydrothieno[2,3-<i>c</i>]pyridine-3,6(7H)-dicarboxylate with 3-methoxy-4-phenoxybenzaldehyde. The synthesized Schiff base was then used to form metal complexes with Pd(II) and Pt(II) metal ions. Various analytical techniques, including microanalysis (C, H, N, and S), FT-IR, <sup>1</sup>H-NMR, <sup>13</sup>C-NMR, UV–Vis., thermal analysis (TGA), powder XRD analysis, mass (ESI), molar conductivity, and magnetic susceptibility, were employed to confirm the structures of synthesized compounds. Spectroscopic data indicated that the Schiff base functions as a chelating agent, utilizing oxygen and nitrogen donor sites. The molar conductance measurements suggested that both complexes are non-electrolytic. A square planar structure was proposed for the Pd(II) and Pt(II) complexes. The study also investigated the electronic and photonic characteristics of the metal complexes under different conditions. Furthermore, a basic diode was fabricated using the metal complex, and its electronic and photonic characteristics were thoroughly investigated. Current–voltage (I-V) measurements showed that the diode based on the Pd(II) complex had notable noise and a high leakage current. On the other hand, the diode with the Pt(II) complex exhibited enhanced photoconductivity as the light intensity increased.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 4","pages":"1989 - 2005"},"PeriodicalIF":2.8,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11164-025-05547-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143676380","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}

引用次数: 0

Study on the adsorption performance of tetracycline by KMnO4/KOH co-modified cow dung-based biochar KMnO4/KOH共改性牛粪基生物炭对四环素吸附性能的研究

IF 2.8 3区化学

Research on Chemical Intermediates Pub Date : 2025-03-10 DOI: 10.1007/s11164-025-05543-2

He-Song Wang, Li-Hong Zhao, Liang-Bin Chen, Yu-Fei Liang, Jia-Qi Tang

{"title":"Study on the adsorption performance of tetracycline by KMnO4/KOH co-modified cow dung-based biochar","authors":"He-Song Wang, Li-Hong Zhao, Liang-Bin Chen, Yu-Fei Liang, Jia-Qi Tang","doi":"10.1007/s11164-025-05543-2","DOIUrl":"10.1007/s11164-025-05543-2","url":null,"abstract":"<div><p>Tetracycline (TC) is a broad-spectrum antibiotic whose residues in water systems present a significant risk to both environmental ecosystems and human health. There is an increasing demand for the development of environmentally friendly and efficient adsorbents to effectively remove TC from water. In response to this need, the present study first involved the preparation of cow dung-based biochar through high-temperature pyrolysis. Subsequently, a co-modification process using KMnO<sub>4</sub> and KOH was employed to obtain Mn-K-DMBC, the modified biochar. Microscopic characterization revealed that the introduction of KMnO<sub>4</sub> and KOH significantly altered both the surface morphology and the pore structure of the biochar. Batch adsorption experiments demonstrated that Mn-K-DMBC exhibited a high adsorption capacity for TC, with a value of 142.58 mg/g at 308.15 K. The adsorption behavior was most effectively characterized by the Langmuir isotherm model and the pseudo-second-order kinetic model. Thermodynamic assessments demonstrated that the process was spontaneous and exhibited endothermic properties. Finally, the analysis revealed that the adsorption of TC onto Mn-K-DMBC is primarily driven by mechanisms such as pore filling, hydrogen bonding, metal complexation, and π-π interactions. This study offers valuable insights into the resource utilization of cow dung biomass and presents novel approaches for the preparation and modification of biochar.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 4","pages":"2171 - 2196"},"PeriodicalIF":2.8,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143676340","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}

引用次数: 0

Correction: Synthesis of pyrazolyl phosphonates by using amine-functionalized metakaolin 更正：用胺功能化偏高岭土合成吡唑酰膦酸盐

IF 2.8 3区化学

Research on Chemical Intermediates Pub Date : 2025-03-04 DOI: 10.1007/s11164-025-05523-6

Kasaram Roja, Reddi Mohan Naidu Kalla, Araveeti Eswar Reddy, D. K. Venkata Ramana, Tahani Mazyad Almutairi, Jaewoong Lee

引用次数: 0

Direct catalyst-free synthesis of substituted imidazolidinone-rhodanine hybrids via functional group migration 通过官能团迁移直接无催化剂合成取代咪唑烷酮-罗丹宁杂合体

IF 2.8 3区化学

Research on Chemical Intermediates Pub Date : 2025-03-04 DOI: 10.1007/s11164-025-05542-3

Parisa Nazari, Farough Nasiri

引用次数: 0

One-pot synthesis of magnetic reduced graphene oxide as a support of Pd/PdO nanoparticles for hydrogen generation from formic acid 一锅法合成磁性还原氧化石墨烯作为甲酸制氢载体的Pd/PdO纳米颗粒

IF 2.8 3区化学

Research on Chemical Intermediates Pub Date : 2025-03-02 DOI: 10.1007/s11164-025-05541-4

Sajjad Keshipour, Mina Hadidi

引用次数: 0

Doxorubicin-functionalized graphene nanoribbons as novel assistant for ionic liquid-based electrolyte in DSSCs: an experimental and DFT study 多柔比星功能化石墨烯纳米带作为 DSSC 中离子液体基电解质的新型助手：实验和 DFT 研究

IF 2.8 3区化学

Research on Chemical Intermediates Pub Date : 2025-03-01 DOI: 10.1007/s11164-025-05539-y

Mehrnaz Davoudabdollah, Elaheh Kowsari, Mohammad Mohammadizadeh Boghrabad, Saeedeh Sarabadani Tafreshi, Mahboobeh Rafieepoor Chirani, Nora H. de Leeuw

{"title":"Doxorubicin-functionalized graphene nanoribbons as novel assistant for ionic liquid-based electrolyte in DSSCs: an experimental and DFT study","authors":"Mehrnaz Davoudabdollah, Elaheh Kowsari, Mohammad Mohammadizadeh Boghrabad, Saeedeh Sarabadani Tafreshi, Mahboobeh Rafieepoor Chirani, Nora H. de Leeuw","doi":"10.1007/s11164-025-05539-y","DOIUrl":"10.1007/s11164-025-05539-y","url":null,"abstract":"<div><p>Dye-sensitized solar cells (DSSCs) have attracted attention due to their efficiency, and researchers are exploring various techniques to enhance their performance. Graphene nanoribbons and doxorubicin with their specific structures can improve these cells' performances. This study is the first application of doxorubicin-functionalized graphene nanoribbons (DF-GNR) as an electrolyte additive in DSSCs. One of the most innovative parts of this research is applying doxorubicin as an expired medicinal drug to embrace the circular economy. The graphene-oxide nanoribbon (GONR) synthesis began with carbon nanotube oxidation, followed by GONR and doxorubicin reacting in 1-butyl 3-methyl imidazolium bromide (as a solvent and catalyst) and triphenyl phosphate to generate DF-GNR. The electrolytes were composed of various amounts of DF-GNR and ionic liquids, including 1-butyl-3-methyl imidazolium iodide and 1-ethyl-3-methyl imidazolium iodide. The results showed that adding an optimum amount of DF-GNR increased the open-circuit voltage (<i>V</i><sub>OC</sub>) from 0.713 to 0.749 V, the short-circuit current density (<i>J</i><sub>SC</sub>) from 8.559 to 13.781 (mA/cm<sup>2</sup>), and the DSSCs' efficiency from 4.276% (the standard cells based on a graphene-free electrolyte in which DF-GNR is not added) to 7.126%. Furthermore, density functional theory studies revealed that the adsorption of DF-GNR electrolyte additives onto the TiO<sub>2</sub> surface induced the formation of midgap states within the electrode’s bandgap. These states facilitated electron transport by lowering the energy barrier, leading to a reduction in the bandgap caused by additive adsorption. This change also resulted in a redshift in the absorption edge and a significant enhancement in the efficiency of DSSCs.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 4","pages":"2105 - 2126"},"PeriodicalIF":2.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143676188","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}

引用次数: 0

Sol–gel synthesis, structure, and morphology of M0.2Ni0.8MoO4 (M = Fe, Cu, and Zn) layered double hydroxide as a novel electrocatalysts for the hydrogen evolution reaction in alkaline media 作为碱性介质中氢进化反应新型电催化剂的 M0.2Ni0.8MoO4（M = Fe、Cu 和 Zn）层状双氢氧化物的溶胶凝胶合成、结构和形貌

IF 2.8 3区化学

Research on Chemical Intermediates Pub Date : 2025-02-26 DOI: 10.1007/s11164-025-05537-0

H. Nady, Salah Eid, Ebtsam K. Alenezy, Ahmed A. Elhenawy, Ibrahim O. Ali

{"title":"Sol–gel synthesis, structure, and morphology of M0.2Ni0.8MoO4 (M = Fe, Cu, and Zn) layered double hydroxide as a novel electrocatalysts for the hydrogen evolution reaction in alkaline media","authors":"H. Nady, Salah Eid, Ebtsam K. Alenezy, Ahmed A. Elhenawy, Ibrahim O. Ali","doi":"10.1007/s11164-025-05537-0","DOIUrl":"10.1007/s11164-025-05537-0","url":null,"abstract":"<div><p>The fabrication of transition metal-based electrocatalysts with superior performance for the hydrogen evolution reaction (HER) remains a major challenge in the field of electrocatalysis. Here, the sol–gel method is used to synthesize three of <i>M</i><sub>0.2</sub>Ni<sub>0.8</sub>Mo-LDH (where <i>M</i> is Fe, Cu, and Zn) layered double hydroxide precursors, which are then used as effective electrocatalysts for the alkaline HER. XRD, HRSEM, ATR-FT-IR, energy-dispersive X-ray, and thermokinetic analysis using TGA methods were used to characterize the structure of the prepared materials. Several investigations have been carried out with thermal kinetic analysis using the Coats–Redfern and Horowitz–Metzger equations. In comparison with Zn<sub>0.2</sub>Ni<sub>0.8</sub>Mo-LDH and Fe<sub>0.2</sub>Ni<sub>0.8</sub>Mo-LDH electrocatalysts, the results show increased electrocatalytic activity of Cu<sub>0.2</sub>Ni<sub>0.8</sub>Mo-LDH in alkaline conditions. For the Cu<sub>0.2</sub>Ni<sub>0.8</sub>Mo-LDH to supply a cathodic current density of 10 mA cm<sup>−2</sup> for the HER, an overpotential as low as 211 mV was needed. The Tafel slopes for different materials were measured, and the results show that the HER follows the Volmer–Heyrovsky reaction. The 3D Hirshfeld surface analysis indicates that van der Waals and dispersion forces play a significant role in the packing of the crystal, with specific interactions between different metal centers—Ni•••H, Mo•••H, and <i>M</i>•••H—being particularly influential. The percentages provided in range (13.6–30.6%) for Cu, (5.5–30.1%) for Zn, and (20.5–33.4%) for Fe—highlight the relative contributions of these interactions to the overall stability and structure of the crystal lattice involving Fe, Cu, and Zn.</p></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 4","pages":"2145 - 2169"},"PeriodicalIF":2.8,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143676238","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}

引用次数: 0

Bimetallic Co-Mg MOF: an efficient heterogeneous catalyst for room-temperature Knoevenagel condensation 双金属Co-Mg MOF：一种高效的室温Knoevenagel缩合非均相催化剂

IF 2.8 3区化学

Research on Chemical Intermediates Pub Date : 2025-02-25 DOI: 10.1007/s11164-025-05528-1

Saeideh Tavakoli, Alireza Abbasi

{"title":"Bimetallic Co-Mg MOF: an efficient heterogeneous catalyst for room-temperature Knoevenagel condensation","authors":"Saeideh Tavakoli, Alireza Abbasi","doi":"10.1007/s11164-025-05528-1","DOIUrl":"10.1007/s11164-025-05528-1","url":null,"abstract":"<div><p>Developing efficient and environmentally sustainable pathways is a fascinating focus within the field of green chemistry. In this study, a bimetallic Co-Mg metal–organic framework (<b><i>Co-Mg MOF</i></b>) was synthesized through solvothermal conditions using Co<sup>2+</sup> and Mg<sup>2+</sup> ions along with NH<sub>2</sub>BDC (2-amino terephthalic acid) as a rigid ligand. Comprehensive characterization was performed using powder X-ray diffraction (PXRD), nitrogen adsorption–desorption isotherm (BET method), thermogravimetric analysis (TGA), elemental mapping, and inductively coupled plasma (ICP) techniques. The as-synthesized catalyst exhibited great catalytic performance in the Knoevenagel condensation of malononitrile and benzaldehyde, possibly due to its abundance of basic and acidic sites. Besides this, the bimetallic MOF catalyst demonstrated superior catalytic activity compared to its single-metal counterparts (Co-MOF and Mg MOF), this enhanced performance is likely due to the synergic effect of incorporating Mg<sup>2+</sup> into the Co-MOF framework. With the optimization of reaction conditions, a significant yield of the final products (involving various aldehydes and malononitrile) was achieved at room temperature within a short duration. The as-synthesized catalyst represented good stability and recyclability through the reaction process even after the 4th run. The results showed that the as-synthesized bimetal <b><i>Co-Mg MOF</i></b> exhibited superior potential as a catalyst in the Knoevenagel condensation reaction, in the presence of green solvent (ethanol).</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 3","pages":"1457 - 1472"},"PeriodicalIF":2.8,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594704","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}

引用次数: 0

An efficient and environmentally benign domino protocol for the synthesis of spirodihydropyridines using europium-doped ZnO nanoparticles as recyclable and reusable heterogeneous catalyst 以铕掺杂ZnO纳米颗粒作为可回收和可重复使用的多相催化剂合成螺二氢吡啶的高效环保多米诺骨牌方案

IF 2.8 3区化学

Research on Chemical Intermediates Pub Date : 2025-02-24 DOI: 10.1007/s11164-025-05538-z

Asha Verma, Surendra Saini, Lalita Kumari, Sanjay Kumar, Kamlendra Awasthi, Suresh Kumar Verma, Dinesh Kumar Arya

{"title":"An efficient and environmentally benign domino protocol for the synthesis of spirodihydropyridines using europium-doped ZnO nanoparticles as recyclable and reusable heterogeneous catalyst","authors":"Asha Verma, Surendra Saini, Lalita Kumari, Sanjay Kumar, Kamlendra Awasthi, Suresh Kumar Verma, Dinesh Kumar Arya","doi":"10.1007/s11164-025-05538-z","DOIUrl":"10.1007/s11164-025-05538-z","url":null,"abstract":"<div><p>An efficient and environmentally sustainable domino protocol has been presented for the synthesis of spirodihydropyridines with privileged heterocyclic substructures involving a three-component reaction of isatins, β-diketones and 1-naphthylamine using ethanol as a solvent and nanostructured Eu-doped ZnO as recyclable and reusable heterogeneous catalyst. X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy and Fourier transform infrared spectroscopy were used to characterise the nanostructured catalyst. The doping of europium with ZnO NPs increased catalytic efficiency and provided excellent yields of the products. The present synthetic protocol is most likely the first to explain the synthesis of spirodihydropyridines spiroannulated with chromenoquinolines, pyrimidoquinolines, indenoquinolines and acridines. The synthetic protocol is expected to be extended to synthesise a library of the hybrid molecules of pharmaceutical and medicinal interest and drug discovery research incorporating privileged heterocyclic substructure. This protocol has special features such as operation simplicity, high atom economy, shorter reaction time (10–20 min), mild reaction conditions and excellent yield (80–94%). The present synthetic methodology is advantageous for commercial uses due to the recyclability and reusability of the catalyst.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 4","pages":"1787 - 1807"},"PeriodicalIF":2.8,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143676231","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}

引用次数: 0

Efficient synthesis of 2-aminothiophenes with ionic liquids catalyzed Gewald reactions 离子液体催化格瓦尔德反应高效合成2-氨基噻吩

IF 2.8 3区化学

Research on Chemical Intermediates Pub Date : 2025-02-24 DOI: 10.1007/s11164-025-05536-1

Yonghai Hui, Qingtao Zeng, Yuanfeng Wu, Bing Li, Biao Yu, Yongfei Zhang, Weiliang Chen, Zhifeng Ma

引用次数: 0