ECSOC-25最新文献_第5页

In Silico Evaluation of New Fluoroquinolones as Possible Inhibitors of Bacterial Gyrases in Resistant Gram-Negative Pathogens 新型氟喹诺酮类药物作为耐药革兰氏阴性病原体细菌回转酶抑制剂的计算机评价

ECSOC-25 Pub Date : 2021-11-14 DOI: 10.3390/ecsoc-25-11753

Manuel Alejandro Coba-Males, Javier Santamaría-Aguirre, Christian D Alcívar-León

引用次数: 0

A Novel Heterocyclic Thiosemicarbazone: Synthesis, Characterization and Preliminary Sensing Studies for Ions 一种新型杂环硫代氨基脲的合成、表征及离子传感的初步研究

ECSOC-25 Pub Date : 2021-11-14 DOI: 10.3390/ecsoc-25-11760

Maria Lene F. Jardim, M. Raposo, S. Costa

{"title":"A Novel Heterocyclic Thiosemicarbazone: Synthesis, Characterization and Preliminary Sensing Studies for Ions","authors":"Maria Lene F. Jardim, M. Raposo, S. Costa","doi":"10.3390/ecsoc-25-11760","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11760","url":null,"abstract":": Over the past decades, the interest in the fast and sensitive recognition and detection of molecules and ions with biological and/or environmental relevance has increased. Therefore, the search of new molecules capable of coordinating these analytes is an important topic of investiga-tion, especially those with an optical response (via color or fluorescence changes). Thiosemicarbazones are versatile organic compounds due to their wide range of biological activities and interesting optical, electronic and redox properties. Also, they possess various binding sites, whose com-plexing ability can be tuned by the introduction of substituents of different electronic character. Having this in mind, we report the synthesis of a new thiosemicarbazone derivative functionalized with a nitrogen heterocyclic moiety. The new compound was characterized by 1 H and 13 C NMR, UV-Vis absorption and fluorescence spectroscopies. Moreover, a preliminary chemosensory study was undertaken in acetonitrile solutions in the presence of relevant ions with biological, medicinal and environmental relevance showing that this receptor has potential application as a fluorimetric chemosensor. UV-Vis absorption and fluorescence spectroscopies.","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89471843","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

Multicomponent Crystalline Solid Forms of Pyridinecarboxamides and DL-2-Hydroxy-2-phenylacetic Acid 吡啶羧基酰胺和dl -2-羟基-2-苯基乙酸的多组分结晶固体形式

ECSOC-25 Pub Date : 2021-11-14 DOI: 10.3390/ecsoc-25-11729

A. Castiñeiras, I. García-Santos, Rocío Torres-Iglesias

引用次数: 0

Study on the Effect of the Ligand Structure in Palladium Organometallic Catalysts in the Suzuki–Miyaura Cross-Coupling Reaction 配体结构对Suzuki-Miyaura交叉偶联反应中钯有机金属催化剂影响的研究

ECSOC-25 Pub Date : 2021-11-14 DOI: 10.3390/ecsoc-25-11730

Paula Munín-Cruz, Marcos Rúa-Sueiro, J. M. Ortigueira, M. T. Pereira, J. M. Vila

引用次数: 0

Solvatochromic Behavior of Polarity Indicators in PILs and Their Mixtures with Molecular Solvents: Autoprotolysis and Its Relation to Acidity 极性指示剂在pil及其与分子溶剂混合物中的溶剂致变色行为:自原解及其与酸度的关系

ECSOC-25 Pub Date : 2021-11-14 DOI: 10.3390/ecsoc-25-11746

C. Adam, Lucía Gamba, M. V. Bravo

{"title":"Solvatochromic Behavior of Polarity Indicators in PILs and Their Mixtures with Molecular Solvents: Autoprotolysis and Its Relation to Acidity","authors":"C. Adam, Lucía Gamba, M. V. Bravo","doi":"10.3390/ecsoc-25-11746","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11746","url":null,"abstract":": It is interesting to know the behavior of Protic Ionic Liquids (PILs) within the binary mixture of molecular solvents since it is usual to carry out processes such as organic and inorganic synthesis, or liquid-liquid extractions in the presence of another solvent. Moreover, on certain occasions the absence of water is strictly required. In this sense, it is important to note that the addition of small amounts of IL to the molecular solvent allows a fine adjustment in its microscopic properties; obtaining “ new solvent systems ” with particular properties. Taking into account that solvatochromic indicators are traditionally used as microscopic descriptors to determine the molecular microscopic properties of solvents. In this sense, we look for re-evaluate the behavior of solvatochromic probes and reconsider the validity of traditional polarity scales such as ET(30), in alkylammonium-based PILs and in their mixtures with molecular solvents, taking into account now that the real composition of these PILs depends on the equilibrium of autoprotolysis. In addition to the spectroscopic analysis developed, the characterization of the PILs and their binary mixtures was completed in terms of a ch ange in the ∆pKa of the precursor species of a PIL. Thermal analysis was also employed to determine the acid strength ’ s role in ions complete formation in pure PILs.","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"240 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77169227","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

Carbon Dots Synthesis from Coffee Grounds, and Sensing of Nitroanilines 咖啡渣合成碳点及其对硝基苯胺的传感

ECSOC-25 Pub Date : 2021-11-14 DOI: 10.3390/ecsoc-25-11777

Bianca Moraes, Alexandra I. Costa, Patrícia D. Barata, J. V. Prata

引用次数: 1

Synthesis of a Symmetrical tris-Tetrazole as Isostere of a Tricarboxylic Acid: Behind New Tridentate Ligands for MOFs 作为三羧酸异位体的对称三-四唑的合成:mof新三齿配体的背后

ECSOC-25 Pub Date : 2021-11-14 DOI: 10.3390/ecsoc-25-11751

Julio C. Flores-Reyes, Perla Islas-Jácome, A. Gutiérrez-Carrillo, Monica A. Rincón-Guevara, G. V. Suárez-Moreno, Óscar Vázquez-Vera, Leticia Lomas-Romero, E. González-Zamora, A. Islas-Jácome

引用次数: 0

Ultrasound Assisted Synthesis of 1,5-Disubstituted Tetrazoles Containing Propargyl or 2-Azidophenyl Moieties via Ugi-Azide Reaction 超声辅助ugi叠氮化反应合成含丙炔或2-叠氮苯基的1,5-二取代四唑

ECSOC-25 Pub Date : 2021-11-14 DOI: 10.3390/ecsoc-25-11758

Manuel A. Rentería-Gómez, C. Solorio-Alvarado, Rocío Gámez-Montaño

引用次数: 1

Resorufin-Based Colorimetric and Fluorescent Probe for Selective Detection of Mercury (II) 基于间苯二酚的比色荧光探针选择性检测汞(ⅱ)

ECSOC-25 Pub Date : 2021-11-14 DOI: 10.3390/ecsoc-25-11779

M. Thakare, D. Patil, Siddhant V. Kokate, N. Pawar

引用次数: 0

3R-Substituted and Norbornane-Annelated 1H-Phospholanoxides: Synthesis and Structure 3r取代的和降冰片烷合成的1h -磷脂氧化物:合成和结构

ECSOC-25 Pub Date : 2021-11-14 DOI: 10.3390/ecsoc-25-11708

A. L. Makhamatkhanova, R. R. Nurislamova, V. D’yakonov, U. Dzhemilev

引用次数: 0