Earthline Journal of Chemical Sciences最新文献_第5页

Bio-sorption of Methylene Blue by Defatted Seed of Adansonia digitata 脱脂adansononia digitata种子对亚甲基蓝的生物吸附

Earthline Journal of Chemical Sciences Pub Date : 2022-11-05 DOI: 10.34198/ejcs.9123.139156

A. Gaye, Ramatoulaye Diouf, A. Fall

引用次数: 0

A New Approach to the Chemistry of the Serullas Test for Morphine 吗啡塞拉斯试验化学性质的新探讨

Earthline Journal of Chemical Sciences Pub Date : 2022-11-05 DOI: 10.34198/ejcs.9123.157162

F. Sánchez-Viesca, Reina Gómez

引用次数: 2

Synthesis, Spectroscopic and X-Ray Structure Determination of a New Mononuclear Terbium (III) Complex from the Ligand N,N'-1,5-bis(pyridylmethylidene) Carbonohydrazone (H2L) 配体N,N'-1,5-二(吡啶基甲基)羰基腙(H2L)单核铽(III)配合物的合成、光谱及x射线结构测定

Earthline Journal of Chemical Sciences Pub Date : 2022-10-22 DOI: 10.34198/ejcs.9123.121137

T. Seck, M. Gueye, I. Thiam, O. Diouf, M. Gaye, P. Retailleau

{"title":"Synthesis, Spectroscopic and X-Ray Structure Determination of a New Mononuclear Terbium (III) Complex from the Ligand N,N'-1,5-bis(pyridylmethylidene) Carbonohydrazone (H2L)","authors":"T. Seck, M. Gueye, I. Thiam, O. Diouf, M. Gaye, P. Retailleau","doi":"10.34198/ejcs.9123.121137","DOIUrl":"https://doi.org/10.34198/ejcs.9123.121137","url":null,"abstract":"In the title compound, [Tb(H2L)2(H2O)3].3Cl.4(H2O).(C2H5OH), the Tb3+ is nine-coordinated in a distorted monocapped square antiprismgeometry by four nitrogen atoms, two oxygen atoms from the ligand molecules of the tridentate N,N'-1,5-bis(pyridylmethylidene) carbonohydrazone) (H2L) and three oxygen atoms of coordinating water molecules. The structure of the complex was elucidated by X-ray diffraction analysis. Suitable crystals were grown by slow evaporation of ethanol solution. The compound crystallizes in the triclinic crystal system with a space group of Pī. The asymmetric unit of the compound contains two neutral ligand molecules, oneterbium ion, three coordinated water molecules, five and half uncoordinated water molecules and one uncoordinated ethanol molecule. In the crystal, the complex cations are linked by hydrogen bonds into layers. These layers, chloride anions and non-coordinating water molecules are connected by O—H···O, O—H···N, O—H···Cl, N—H···O, N—H···Cl and C—H···Cl hydrogen bonds into a three-dimensional structure.","PeriodicalId":11449,"journal":{"name":"Earthline Journal of Chemical Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86409917","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

Tautomers of Ethosuximide and their Interaction with Calcium Cation - A DFT Treatment 乙磺酰亚胺的互变异构体及其与钙离子的相互作用- DFT治疗

Earthline Journal of Chemical Sciences Pub Date : 2022-10-14 DOI: 10.34198/ejcs.9123.103119

L. Türker

引用次数: 0

Trace Metals Behaviors in the Superficial Sediments from a Tropical Lagoon 热带泻湖浅层沉积物中的微量金属行为

Earthline Journal of Chemical Sciences Pub Date : 2022-10-14 DOI: 10.34198/ejcs.9123.77102

Mahi Agolé Mahi Arthur, Y. Konan, Claon Jean Stéphane, Trokourey Albert

{"title":"Trace Metals Behaviors in the Superficial Sediments from a Tropical Lagoon","authors":"Mahi Agolé Mahi Arthur, Y. Konan, Claon Jean Stéphane, Trokourey Albert","doi":"10.34198/ejcs.9123.77102","DOIUrl":"https://doi.org/10.34198/ejcs.9123.77102","url":null,"abstract":"The aim of this study is to assessment the effects of the seasonal water inputs on the seasonal dynamic of trace metals in the superficial sediments from the lagoon area II of Ébrié system. This study was implemented during one year (from June 2020 to May 2021) and all the physical and chemical parameters of these sediments, used in this study, were all obtained according to AFNOR standards. In hot season, the trace metal contents of these sediments, dominated by coarse sands in all seasons, were on the whole favored by the marine inputs; which would induce their very slightly basicity and reduce characters, low salinity and conductivity. However, the majority of their trace metals content decreases in rainy season with the meteorite inputs; would induce their slightly acidic and oxidizing characters and, the increase in their salinity and conductivity. These were again for the slightly basic and reduce characters of the open waters at the interface water-sediment, as their relative important salinity, conductivity and organic matter content in this season. The same effects were observed in flood season but a less marked by the important presence of Comoé river in this ecosystem.","PeriodicalId":11449,"journal":{"name":"Earthline Journal of Chemical Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81835182","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

Review: Using Metal Oxide Nanoparticles as Catalyst in Benzimidazoles Synthesis 纳米金属氧化物催化剂在苯并咪唑合成中的应用综述

Earthline Journal of Chemical Sciences Pub Date : 2022-10-13 DOI: 10.34198/ejcs.9123.6376

A. Abdullah, S. A. Dadoosh, M. Thani, A. S. Fahad

引用次数: 0

Some Tautomers of Dacarbazine - A DFT Study 达卡巴嗪的一些互变异构体的DFT研究

Earthline Journal of Chemical Sciences Pub Date : 2022-09-28 DOI: 10.34198/ejcs.9123.4762

L. Türker

引用次数: 0

Experimental and Theoretical Assessments on Anticorrosion Performance of 2-(1H-benzimidazol-2-yl)-3-(4-hydroxyphenyl) Acrylonitrile for Copper in 1M HNO3 2-(1h -苯并咪唑-2-基)-3-(4-羟基苯基)丙烯腈对铜在1M HNO3中防腐性能的实验与理论评价

Earthline Journal of Chemical Sciences Pub Date : 2022-09-25 DOI: 10.34198/ejcs.9123.1745

M. A. Tigori, Aboudramane Koné, Koffi Amenan Mireille, D. Sissouma, P. Niamien

{"title":"Experimental and Theoretical Assessments on Anticorrosion Performance of 2-(1H-benzimidazol-2-yl)-3-(4-hydroxyphenyl) Acrylonitrile for Copper in 1M HNO3","authors":"M. A. Tigori, Aboudramane Koné, Koffi Amenan Mireille, D. Sissouma, P. Niamien","doi":"10.34198/ejcs.9123.1745","DOIUrl":"https://doi.org/10.34198/ejcs.9123.1745","url":null,"abstract":"The present study was designed to determine the inhibition effect of 2-(1H-benzimidazol-2-yl)-3-(4-hydroxyphenyl) acrylonitrile in 1M HNO3 using a combined experimental and theoretical approach. Mass loss techniques revealed that 2-(1H-benzimidazol-2-yl)-3-(4-hydroxyphenyl) acrylonitrile inhibition efficiency is dependent on its concentration and temperature. It has been shown that the studied molecule inhibits copper corrosion by an adsorption behavior by donating and accepting electrons. Kinetic parameters have been determined and discussed. Quantum chemical parameters calculated by means of density functional theory (DFT) have shown that studied molecule reactivity is strongly related to the electronic properties, which could help to understand the molecule-metal interactions. The reactive sites have been determined by means of Fukui Functions and dual descriptor. Quantitative structure-property relationship (QSPR) model introduced in this study was used to find a set of quantum chemical parameters capable of correlating the experimental and theoretical data in order to design more suitable organic corrosion inhibitors. The theoretically obtained results were found to be consistent with the experimental data reported.","PeriodicalId":11449,"journal":{"name":"Earthline Journal of Chemical Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82320932","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

Effect of Aluminum on 1,3,5,5-tetranitrohexahydropyrimidine (DNNC) - A DFT Treatment 铝对1,3,5,5-四硝基六氢嘧啶(DNNC) - A DFT处理的影响

Earthline Journal of Chemical Sciences Pub Date : 2022-09-15 DOI: 10.34198/ejcs.9123.116

L. Türker

引用次数: 0

Effect of Drying the Chemical Composition of the Essential Oil of Ocimum gratissimum L (Lamiaceae) Harvested in the Tonkpi Region (Ivory Coast) 象牙海岸通比(Tonkpi)地区收获的叶菖蒲精油化学成分的干燥效应

Earthline Journal of Chemical Sciences Pub Date : 2022-09-13 DOI: 10.34198/ejcs.8222.275289

Konan N’dri Séraphin, Yéo Sounta Oumar, Dan Eude Kpannieu, Prao Kouassi Modeste, Kouamé Bosson Antoine, Mamyr Békova-Békro Janat Akhanovna, B. Yves-Alain

{"title":"Effect of Drying the Chemical Composition of the Essential Oil of Ocimum gratissimum L (Lamiaceae) Harvested in the Tonkpi Region (Ivory Coast)","authors":"Konan N’dri Séraphin, Yéo Sounta Oumar, Dan Eude Kpannieu, Prao Kouassi Modeste, Kouamé Bosson Antoine, Mamyr Békova-Békro Janat Akhanovna, B. Yves-Alain","doi":"10.34198/ejcs.8222.275289","DOIUrl":"https://doi.org/10.34198/ejcs.8222.275289","url":null,"abstract":"In this study, we were interested in the valuation of Ocimum gratissimum, an aromatic and medicinal plant of the Ivorian flora. The essential oils of the leafy branches of Ocimum gratissimum were extracted by hydrodistillation with a Clévenger-type device. The yield of the oils obtained increases from (0.05±0.01%) to (0.42±0.08%) depending on the drying time. The density of essential oils is almost constant at 0.80. The chemical composition of essential oils was identified after analysis of chromatograms and mass spectra. The number of phytocompounds also increases with the number of drying days from 32 to 37. These compounds are marked by the presence of hydrocarbon monoterpenes from (29.11% to 49.1%), and oxygenated from (40.33% to 50.02%) and the presence of hydrocarbon sesquiterpenes from (5.52% to 8.55%), and oxygenated from (0.80% to 2.16%). The number of major compounds is 5 on day 0 and decreases to 4 on the other days, and have the following proportions: thymol from (33.60% to 44.73%), β‑caryophyllene from (2.54% to 3.29%), para-cymene (12.32% to 25.60%), γ-terpinene (10.09% to 11.41%), Bis(2-ethylhexyl)phthalate (12.12% to 0.42%). bis (2-ethylhexyl) phthalate which is in the minority during the other drying days.","PeriodicalId":11449,"journal":{"name":"Earthline Journal of Chemical Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82417238","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