Monatshefte für Chemie / Chemical Monthly最新文献_第4页

Amperometric dopamine sensor based on carbon nanofiber, Fe3O4 nanoparticles, and silver nanoparticles modified glassy carbon electrode 基于碳纳米纤维、Fe3O4 纳米粒子和银纳米粒子修饰的玻璃碳电极的安培多巴胺传感器

Monatshefte für Chemie / Chemical Monthly Pub Date : 2024-05-28 DOI: 10.1007/s00706-024-03219-y

Huda Abdalkarem M. Sadeq Alı Yashıl, İrem Okman Koçoğlu

{"title":"Amperometric dopamine sensor based on carbon nanofiber, Fe3O4 nanoparticles, and silver nanoparticles modified glassy carbon electrode","authors":"Huda Abdalkarem M. Sadeq Alı Yashıl, İrem Okman Koçoğlu","doi":"10.1007/s00706-024-03219-y","DOIUrl":"https://doi.org/10.1007/s00706-024-03219-y","url":null,"abstract":"In this study, an amperometric dopamine sensor based on carbon nanofibers (CNF), Fe3O4 nanoparticles (Fe3O4NP), and silver nanoparticles (AgNP) modified glassy carbon electrode (GCE) was developed. In order to determine the optimum surface composition, the effects of CNF amount, Fe3O4 amount and the electrodeposition step of AgNP were investigated. Optimum experimental parameters such as working potential and pH of test solution were also explored. The morphological and electrochemical properties of the AgNP/CNF − Fe3O4NP/GCE were studied using scanning electron microscopy, cyclic voltammetry, and chronoamperometry. The AgNP/CNF − Fe3O4NP/GCE showed linear response to dopamine between 2.0 × 10−7 and 5.5 × 10−4 M with a detection limit of 1.8 × 10−7 M and sensitivity of 37.24 μA mM−1. Analytical performance characteristics such as reproducibility, reusability, and selectivity were also investigated for the presented dopamine sensor. The sensor was successfully applied to the detection of dopamine in dopamine hydrochloride injection samples using the standard addition method and good recoveries were obtained.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":19011,"journal":{"name":"Monatshefte für Chemie / Chemical Monthly","volume":"62 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141165475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and pharmacological evaluation of polyamine-diarylidenyl piperidone derivatives as potent antitumor agents 作为强效抗肿瘤药物的多胺-二亚芳基哌啶酮衍生物的合成与药理学评价

Monatshefte für Chemie / Chemical Monthly Pub Date : 2024-05-25 DOI: 10.1007/s00706-024-03220-5

Zhi-Chen Mao, Shuang-Qiang Liu, Xiao-Man Chen, Jian-Hua Wei, Ri-Zhen Huang, Ye Zhang

引用次数: 0

Starch-supported cuprous iodide nanoparticles catalysed C–C bond cleavage: use of carbon-based leaving groups for bisindolylmethane synthesis 淀粉支撑的碘化亚铜纳米粒子催化 C-C 键裂解：利用碳基离去基团合成双吲哚甲烷

Monatshefte für Chemie / Chemical Monthly Pub Date : 2024-05-18 DOI: 10.1007/s00706-024-03215-2

Muthiah Suresh, Raj Bahadur Singh, Sadhana Katlakunta, Snigdha Rani Patra, Yogesh Bhaskar Singh Tanwer, Sadhucharan Mallick, Sabyasachi Bhunia, Debjit Das

引用次数: 0

Phosphine-coated Pd@Fe3O4 nanoparticles: a highly efficient and magnetically recyclable nanocatalyst for the arylation of aldehyde 磷化氢包覆的 Pd@Fe3O4 纳米颗粒：用于醛的芳基化反应的高效磁性可回收纳米催化剂

Monatshefte für Chemie / Chemical Monthly Pub Date : 2024-05-09 DOI: 10.1007/s00706-024-03201-8

Akram Ashouri, Somayeh Pourian, Behzad Nasiri

引用次数: 0

Bisbenzimidazole salts and their in silico–in vitro inhibitory abilities on hCA I, hCA II, and AChE enzymes 双苯并咪唑盐及其对 hCA I、hCA II 和 AChE 酶的硅体外抑制能力

Monatshefte für Chemie / Chemical Monthly Pub Date : 2024-05-09 DOI: 10.1007/s00706-024-03204-5

Ülkü Yılmaz, Yeliz Demir, Tuğba Taşkın Tok, Yetkin Gök, Aydın Aktaş, İlhami Gülçin

{"title":"Bisbenzimidazole salts and their in silico–in vitro inhibitory abilities on hCA I, hCA II, and AChE enzymes","authors":"Ülkü Yılmaz, Yeliz Demir, Tuğba Taşkın Tok, Yetkin Gök, Aydın Aktaş, İlhami Gülçin","doi":"10.1007/s00706-024-03204-5","DOIUrl":"https://doi.org/10.1007/s00706-024-03204-5","url":null,"abstract":"Eight new bisbenzimidazolium halides were prepared from alkyl halides and 4,4′-bis[(benzimidazol-1-yl)methyl]-1,1′-biphenyl.The structures of the benzimidazole salts were characterized using elemental analysis techniques as well as 1H, 13C NMR, and FT-IR spectroscopic methods. The inhibitory effects of the benzimidazole derivatives were measured against human carbonic anhydrase I (hCA I), human carbonic anhydrase II (hCA II), and acetylcholinesterase (AChE) enzymes. All benzimidazolium halides exhibited significant enzyme inhibitory properties. They showed highly potent inhibitory effect on AChE and hCAs (Ki values are in the range of 15.7 ± 0.8 to 49.7 ± 10.1 nM, 14.6 ± 1.5 to 70.7 ± 2.7 nM, and 17.4 ± 2.8 to 38 ± 10 nM for AChE, hCA I, and hCA II, respectively). The binding orientation of the synthesized bisbenzimidazolium halides was evaluated by molecular docking studies, reflecting the importance of the p-methylbenzyl, m-methylbenzyl, p-nitrophenethyl, and 3-(1,3-dioxoisoindolin-2-yl)methyl) groups in protein–ligand interaction. The docking results support the Ki values of the respective compounds in this study. The structure–activity relationships against the various targets are clearly shown in three dimensions at the atomic level by their interactions with the mentioned enzymes.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":19011,"journal":{"name":"Monatshefte für Chemie / Chemical Monthly","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140930756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 and stability of phosphonium phenolate zwitterions derived from a (diphenylphosphino)phenol derivative and oxiranes 由（二苯基膦）苯酚衍生物和环氧乙烷衍生的膦苯酚齐聚物的合成、表征和稳定性

Monatshefte für Chemie / Chemical Monthly Pub Date : 2024-05-08 DOI: 10.1007/s00706-024-03216-1

Matthias R. Steiner, Christoph Marschner, Judith Baumgartner, Johann A. Hlina, Christian Slugovc

{"title":"Synthesis, characterization and stability of phosphonium phenolate zwitterions derived from a (diphenylphosphino)phenol derivative and oxiranes","authors":"Matthias R. Steiner, Christoph Marschner, Judith Baumgartner, Johann A. Hlina, Christian Slugovc","doi":"10.1007/s00706-024-03216-1","DOIUrl":"https://doi.org/10.1007/s00706-024-03216-1","url":null,"abstract":"Phosphonium phenolate zwitterions have been synthesized from 2,4-di-tert-butyl-6-(diphenylphosphino)phenol and five different oxirane derivatives. The reaction does not proceed at a detectable rate when the two reactants are combined in dichloromethane at room temperature. Despite the substantial ring strain, the reaction proceeds only with the addition of methanol, which acts as a hydrogen transfer shuttle, allowing a slow conversion to the desired zwitterions. The compounds have been fully characterized and single crystal X-ray crystallography has been performed on the methyloxirane and the phenyl glycidyl ether-derived zwitterion. The phosphonium phenolate units exhibit an ylidic bonding situation as evidenced by spectroscopic and crystallographic analysis. Glycidyl ethers were found to react faster than alkyl and aryloxiranes. Decomposition studies of the zwitterions showed high thermal stability in solution under ambient conditions. Under forced conditions (150 °C, 6 h), decomposition to the corresponding phosphine oxide and secondary aliphatic alcohols, the formally hydrogenated oxirane derivative, was observed.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":19011,"journal":{"name":"Monatshefte für Chemie / Chemical Monthly","volume":"2015 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140930940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A molecular electron density theory study on the [3 + 2] cycloaddition reaction of a 2,4-dienone and a nitrone: regioselectivity, diastereoselectivity, energetic aspects, and molecular mechanism 关于 2,4-二烯酮和腈的[3 + 2]环加成反应的分子电子密度理论研究：区域选择性、非对映选择性、能量方面和分子机理

Monatshefte für Chemie / Chemical Monthly Pub Date : 2024-05-08 DOI: 10.1007/s00706-024-03208-1

Mousa Soleymani, Mahdieh Chegeni, Negin Daei, Reza Khazaeinejad

引用次数: 0

Preparation of arylboronic and diarylborinic acids from potassium aryl(fluoro)borates 从芳基（氟）硼酸钾制备芳基硼酸和二芳基硼酸

Monatshefte für Chemie / Chemical Monthly Pub Date : 2024-05-07 DOI: 10.1007/s00706-024-03213-4

Vadim V. Bardin, Nicolay Yu. Adonin

引用次数: 0

A new symmetrical lead-based battery using a “water-in-salt” electrolyte 使用 "盐包水型 "电解质的新型对称铅基电池

Monatshefte für Chemie / Chemical Monthly Pub Date : 2024-05-07 DOI: 10.1007/s00706-024-03205-4

Xinping Duan, Mingqiang Li, Lixiang Wang, Jingwen Li, Shuailiang Xu, Haochen Weng

{"title":"A new symmetrical lead-based battery using a “water-in-salt” electrolyte","authors":"Xinping Duan, Mingqiang Li, Lixiang Wang, Jingwen Li, Shuailiang Xu, Haochen Weng","doi":"10.1007/s00706-024-03205-4","DOIUrl":"https://doi.org/10.1007/s00706-024-03205-4","url":null,"abstract":"Lead–acid batteries are widely used in medium and large energy storage systems, but their application in emerging technologies has been limited by shortcomings in practical applications, such as low specific capacity and irreversible sulfation. We tried to apply “water-in-salt” electrolytes to novel symmetric lead-based batteries, exploring a variety of active material substrates to show that graphite foil current collector batteries perform best. An elevated concentration of water-in-salt electrolyte can broaden the electrochemical stability window, which enables these batteries to show excellent discharge performance, with a reversible specific capacity of 167 mAh g−1 at a discharge current density of 0.1 A g−1, increasing the active material utilization to 69.6% of theoretical capacity. In addition, the batteries maintained a discharge capacity of 152 mAh g−1 after 800 cycles, with a capacity retention rate of 91%, which is better than most pre-reported values. The charging and discharging mechanisms of the positive electrode were analyzed using Raman, X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, and transmission electron microscopy.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":19011,"journal":{"name":"Monatshefte für Chemie / Chemical Monthly","volume":"60 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140930958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nanocomposite of ZIF-67/reduced graphene oxide as sensing element for voltammetric detection of silver(I) ion: optimizing operational conditions by half-fraction central composite design 作为伏安法检测银离子的传感元件的 ZIF-67/ 还原氧化石墨烯纳米复合材料：通过半分数中心复合设计优化操作条件

Monatshefte für Chemie / Chemical Monthly Pub Date : 2024-05-06 DOI: 10.1007/s00706-024-03207-2

Majid Yaghoubi, Ali Reza Zanganeh, Nader Mokhtarian, Mohammad Hassan Vakili

{"title":"Nanocomposite of ZIF-67/reduced graphene oxide as sensing element for voltammetric detection of silver(I) ion: optimizing operational conditions by half-fraction central composite design","authors":"Majid Yaghoubi, Ali Reza Zanganeh, Nader Mokhtarian, Mohammad Hassan Vakili","doi":"10.1007/s00706-024-03207-2","DOIUrl":"https://doi.org/10.1007/s00706-024-03207-2","url":null,"abstract":"In this work, a sensing platform founded on the immobilization of ZIF-67 and rGO nanocomposite (ZIF-67/rGO) by Nafion on the glassy carbon electrode surface was fabricated and used for probing silver by differential pulse anodic stripping voltammetry (DPASV) procedure. The half-fraction central composite design (HF-CCD) was utilized for optimizing the experimental variables (weight percentage of composite: 8%; pre-concentration time and applied potential: 240 s, −1.3 V; scan rate of DPASV: 100 mV s−1; pre-concentration solution pH: 6). The detection limit was 4.0 × 10−11 mol/dm3. The repeatability (relative standard deviation) of the measurements using a single sensor was approximately 4% (n = 5, 1.0 × 10−8 mol/dm3 Ag(I)). One of the advantages of the proposed sensor is its high selectivity, which is based on the size-selective property of the ZIF-67 toward silver, and it causes the interference of other species, especially mercury, to be absent. Also, the use of Nafion immobilizes a large amount of composite on the surface of the electrode, and on the other hand, the synergistic effect related to the high conductivity of rGO and the high porosity of the ZIF-67 causes effective pre-concentration of silver by the composite, and these two factors strengthen the sensor signal, increase sensitivity and cause reaching the appropriate detection limit. In this research, an attempt has been made to overcome the challenges of using ZIF-67 in the construction of an electrochemical sensor, and its results can be used to build electrochemical platforms based on MOFs.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":19011,"journal":{"name":"Monatshefte für Chemie / Chemical Monthly","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140930833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0