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A Review on 4, 5-Imidazoledicarboxylic Acid: Their Chemistry and Coordination Potentials 4,5 -咪唑二羧酸的化学性质及配位势研究进展
Modern Chemistry & Applications Pub Date : 2017-06-23 DOI: 10.4172/2329-6798.1000222
W. B. Dirersa
{"title":"A Review on 4, 5-Imidazoledicarboxylic Acid: Their Chemistry and Coordination Potentials","authors":"W. B. Dirersa","doi":"10.4172/2329-6798.1000222","DOIUrl":"https://doi.org/10.4172/2329-6798.1000222","url":null,"abstract":"As part of heterocyclic imidazole interest to explore new receptors for anion; 4,5-imidazoledicarboxylic acid and their derivatives have great roles in coordination chemistry. This review, was also update the application and behaviour of 4,5-imidazoledicarboxylic acid (H3IMDC) as a potential motif for coordination compound in supramolecular structure activity. H3IMDC contains one imidazole NH and two COOH protons which could be donated for hydrogen bonding to the anions. Due to the electronic properties of carboxyl group oxygens, coordination to metal ions can occur in different modes. In situ ligand synthesis is of growing interest as a new approach for the synthesis of coordination polymers. The main reason for interesting of 4,5-imidazoledicarboxylic acid (H3IMDC) and its derivatives in coordination polymers of metal-organic framework is because it has six potential donor atoms: two imidazole nitrogens and four carboxylate oxygen atoms, and can remove one to three hydrogen atoms forming H3-nIMDCn- (n=1,2 or 3) species. The six donors may show various coordination modes and construct beautiful structures. In present review, the chemistry of 4,5-imidazoledicarboxylic acid and its coordination potential in coordination and supramolecular chemistry, which are uses as input for medicinal and drug synthesis, pharmacological actions and as biological activity; where reviewed based on the coordination potentials of imidazole derived heterocyclic molecules in metal-organic frameworks.","PeriodicalId":18605,"journal":{"name":"Modern Chemistry & Applications","volume":"49 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79123884","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: 3
Adsorption Isotherm of Dibenzyl Toluene and its Partially Hydrogenated Forms Over Phenyl Hexyl Silica 二苄基甲苯及其部分氢化形式在苯基己基二氧化硅上的吸附等温线
Modern Chemistry & Applications Pub Date : 2017-06-22 DOI: 10.4172/2329-6798.1000221
R. Aslam, K. Müller
{"title":"Adsorption Isotherm of Dibenzyl Toluene and its Partially Hydrogenated Forms Over Phenyl Hexyl Silica","authors":"R. Aslam, K. Müller","doi":"10.4172/2329-6798.1000221","DOIUrl":"https://doi.org/10.4172/2329-6798.1000221","url":null,"abstract":"Liquid organic hydrogen carriers (LOHC) are an interesting option for chemical energy storage and hydrogen transportation. Dibenzyltoluene (H0-DBT), heat transfer oil, is capable of reversibly storing hydrogen emerged as a feasible LOHC system. However, it is not available as a pure compound but consists of an isomeric mixture of 6 to 8 compounds. During the hydrogen storage process a high number of stable intermediate species is formed. These compounds can be categorized into four main classes according to their degree of hydrogenation. To implement H0- DBT as a LOHC system, thermophysical data of these intermediate compounds are required. In our previous work, a reversed phase HPLC method was developed using phenylhexyl silica stationary phase and acetone/water as eluent to separate these partially hydrogenated fractions with a purity >98%. For further designing a batch or continuous HPLC process, adsorption isotherm data are required. In this work, adsorption isotherms for dibenzyltoluene and its partial and fully hydrogenated forms namely hexahydro-dibenzyltoluene, dodecahydro-dibenzyltoluene, and octadecahydrodibenzyltoluene are measured over phenylhexyl silica in acetone/water solvent using the static method. Sip’s equation (Combined Langmuir-Freundlich isotherm) fits the data better as compared to simple Freundlich, Langmuir or competitive Langmuir adsorption isotherms.","PeriodicalId":18605,"journal":{"name":"Modern Chemistry & Applications","volume":"270 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79894904","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: 4
Mobile-Phone Based Chemical Analysis - Instrumental Innovations and Smartphone Apps 基于移动电话的化学分析-仪器创新和智能手机应用程序
Modern Chemistry & Applications Pub Date : 2017-06-12 DOI: 10.4172/2329-6798.1000220
M. Trojanowicz
{"title":"Mobile-Phone Based Chemical Analysis - Instrumental Innovations and Smartphone Apps","authors":"M. Trojanowicz","doi":"10.4172/2329-6798.1000220","DOIUrl":"https://doi.org/10.4172/2329-6798.1000220","url":null,"abstract":"Main trends in development of analytical instrumentation involve design a measuring instruments, which are able \u0000 to provide the largest possible amount of analytical information about analyzed material, but simultaneously also \u0000 simplification and scaling-down analytical instruments towards a possible use directly by users without specialized \u0000 training. Both those development trends are associated with another important tendency, which is the elimination \u0000 of direct human effort in carrying out different operations in chemical analytical procedures by design of measuring \u0000 systems, which are mechanized, robotized, or even completely automated involving various contributions of artificial \u0000 intelligence. One of elements used also for further instrumental progress, is in recent decade the application of mobile \u0000 phones in further modification of analytical devices for remote and personal use. The potential utility value of a concept \u0000 to equip mobile-phones in chemical sensors can be considered as a very efficient way for improving the access to a \u0000 personal analytical devices for instance in bioanalytical applications, smartphone-based biosensors, and integration of \u0000microfluidic devices and smartphones.","PeriodicalId":18605,"journal":{"name":"Modern Chemistry & Applications","volume":"405 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2017-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76621363","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: 2
Schiff Bases Derived from 2-Hydroxy and 2-Methoxy Naphthaldehyde:Exploration of In Silico Docking, DNA Cleavage, Antibacterial Activitiesand SAR 从2-羟基和2-甲氧基萘醛衍生的希夫碱:硅对接、DNA切割、抗菌活性和SAR的探索
Modern Chemistry & Applications Pub Date : 2017-05-31 DOI: 10.4172/2329-6798.1000219
Devika Bhai Rajamma, Girija Cr, R. Ramakrishna
{"title":"Schiff Bases Derived from 2-Hydroxy and 2-Methoxy Naphthaldehyde:Exploration of In Silico Docking, DNA Cleavage, Antibacterial Activitiesand SAR","authors":"Devika Bhai Rajamma, Girija Cr, R. Ramakrishna","doi":"10.4172/2329-6798.1000219","DOIUrl":"https://doi.org/10.4172/2329-6798.1000219","url":null,"abstract":"Antibacterial activities, molecular docking and DNA cleavage activities of five structurally related Schiff bases were \u0000 performed and their structure activity relationship was studied. Antibacterial activities of these compounds against \u0000 gram-negative and gram-positive bacteria were evaluated by using well diffusion method and the molecule 1-[(E)-(4- \u0000 hydroxyphenyl)iminomethyl]naphthalene-2-ol which carries two hydroxyl functional groups was observed as one of the \u0000 most dynamic antibacterial agents. The antibacterial activities of this molecule was compared with an earlier research \u0000 work and concluded that the antimicrobial activities of these Schiff base analogues can be improved by introducing OH \u0000 groups in their core structure. Docking interactions were investigated against p55blk kinase protein. The compound \u0000 1-[(E)-(3-nitrophenyl)iminomethyl]naphthalene-2-ol exhibited good docking proficiency with 24 interactions based \u0000 on statistical potentials and the compound (E)-1-(2-methoxy-1-naphthyl)-N-(3-nitro phenyl)methanimine showed \u0000 significant docking interaction based on hydrogen bonding. DNA cleavage efficiency of all the Schiff bases was \u0000investigated using Lambda DNA by gel electrophoresis method.","PeriodicalId":18605,"journal":{"name":"Modern Chemistry & Applications","volume":"140 2 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83021527","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: 2
Boric Acid Production from a Low-Grade Boron Ore with Kinetic Considerations 低品位硼矿制硼酸动力学研究
Modern Chemistry & Applications Pub Date : 2017-05-22 DOI: 10.4172/2329-6798.1000218
H. Mahdi, M. Davood, Mohsen, S. Behzad
{"title":"Boric Acid Production from a Low-Grade Boron Ore with Kinetic Considerations","authors":"H. Mahdi, M. Davood, Mohsen, S. Behzad","doi":"10.4172/2329-6798.1000218","DOIUrl":"https://doi.org/10.4172/2329-6798.1000218","url":null,"abstract":"The most important Iranian boron reserves are in the basin of Ghezel Ozan, a river in the West and Northwest area of Zanjan. In the present study, boric acid production from an Iranian low-grade borate ore by hydrometallurgical process was investigated. In order to produce boric acid, boron ore was reacted with sulphuric acid. The influence of four parameters on the course of reaction such as pH, temperature, liquid to solid ratio, and reaction time was examined. Optimum condition for leaching part was obtained in temperature of 90°C, reaction time of 2 hours, L/S ratio of 3, and pH of 1. Under these conditions, the recovery of boron acidic leaching was reported to be 92.21%. Neutralization of pulp was done by lime. Finally, boric acid was obtained by crystallization. The purity of produced boric acid was 99.56%. The data obtained from the acidic leaching kinetics indicated that the dissolution of boron ore is fluid film diffusion controlled reaction and the reaction activation energy equals to 11.6 kJ/mol. Enthalpy of activation and entropy of activation were 11.2 kJ/mol and -246.3 J/(mol.K) respectively.","PeriodicalId":18605,"journal":{"name":"Modern Chemistry & Applications","volume":"60 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2017-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86471535","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: 5
Comparative Study for the Analysis of Cefixime Trihydrate and its Degraded Products by Two RP-HPLC Methods, One its Official and Other Developed Validated Method 两种反相高效液相色谱法分析三水合头孢克肟及其降解产物的比较研究
Modern Chemistry & Applications Pub Date : 2017-05-03 DOI: 10.4172/2329-6798.1000214
Elsadig Hk, A. Mb
{"title":"Comparative Study for the Analysis of Cefixime Trihydrate and its Degraded Products by Two RP-HPLC Methods, One its Official and Other Developed Validated Method","authors":"Elsadig Hk, A. Mb","doi":"10.4172/2329-6798.1000214","DOIUrl":"https://doi.org/10.4172/2329-6798.1000214","url":null,"abstract":"The aim of the present work was aimed to carry out comparative study between method (1) and method (2) for separation of cefixime trihydrate and its degraded products by using two different mobile phases, keeping the other parameters such as stationary phase, column condition, wavelength, and device. Mobile phase for method (1) consist of a solution of 0.03 M Tetra butyl ammonium hydroxide (pH 6.5) and acetonitrile with a ratio of 3:1 respectively while Mobile phase for method (2) consist of a mixture of 0.1 M sodium dihydrogen phosphate monohydrate solution (pH 2.5) and methanol with a ratio 3:1 respectively. To study the degraded products sample was subjected to Sun light, UV light, and thermal effects. From data obtained proved the method (2) gave less retention time for the separation of drug with a larger number of decomposed products being detected compared by method (1).","PeriodicalId":18605,"journal":{"name":"Modern Chemistry & Applications","volume":"46 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2017-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77219744","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: 5
On Electrochemical Managing the Properties of Aqueous Coolant 水基冷却剂性能的电化学管理
Modern Chemistry & Applications Pub Date : 2017-04-28 DOI: 10.4172/2329-6798.1000217
Alex, S. er
{"title":"On Electrochemical Managing the Properties of Aqueous Coolant","authors":"Alex, S. er","doi":"10.4172/2329-6798.1000217","DOIUrl":"https://doi.org/10.4172/2329-6798.1000217","url":null,"abstract":"Liquid water as a chemical compound with the wide band gap is characterized by varying their Fermi level as a linear identifier of water oxidation-reduction potential (ORP). This potential is the management tool for changing chemical properties of the aqueous coolant by forced shifting Fermi level in the band gap at the expense of insignificant deviation (|z| 0) with the negative ORP is realized when Fermi level is shifted to the local donor level, eHO, by electro-reducing the aqueous coolant in the electrochemical cell with the strongly polarized anode and the quasi-equilibrium cathode, occupying eH2O by electrons, and forming hydroxonium radicals, H3O, as the strongest reducers. Opposite, the hyperstoichiometric state (z<0) with the positive ORP is realized in the electrochemical cell with the strongly polarized cathode and the quasi-equilibrium anode when Fermi level is shifted to the local acceptor level, radicals, eOH, as the strongest oxidizers. eOH, forming in water hydroxyl.","PeriodicalId":18605,"journal":{"name":"Modern Chemistry & Applications","volume":"7 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2017-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73411067","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: 2
Extraction, Characterisation and Industrial Applications of Sesamum indicum Seed Oil 芝麻籽油的提取、表征及工业应用
Modern Chemistry & Applications Pub Date : 2017-04-14 DOI: 10.4172/2329-6798.1000216
Chinweuba Aj, Chen Mn
{"title":"Extraction, Characterisation and Industrial Applications of Sesamum indicum Seed Oil","authors":"Chinweuba Aj, Chen Mn","doi":"10.4172/2329-6798.1000216","DOIUrl":"https://doi.org/10.4172/2329-6798.1000216","url":null,"abstract":"Oil was extracted from ground Sesamum indicum seeds by solvent extraction method using Soxhlet extractor and n-hexane as the solvent. The percentage oil yield on weight of the dried seeds was 32%. The oil quality parameters were accessed in terms of acid value, free fatty acid value, saponification value, iodine number and peroxide value. The results obtained showed the oil to be non drying oil with iodine value of 76.56 g/100 g and could be used for skin cream production. The acid and free fatty acid values of Sesamum indicum seed oil showed that the oil would not require any purification before use. The saponification value of 55.90 mg/g suggested that the oil could be used for soap production. The results confirmed that the oil could also be used for grease production, alkyd resin and paints.","PeriodicalId":18605,"journal":{"name":"Modern Chemistry & Applications","volume":"77 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2017-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90463946","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: 2
Verification of Phase Diagrams by Three-Dimension Computer Models 用三维计算机模型验证相图
Modern Chemistry & Applications Pub Date : 2017-03-15 DOI: 10.4172/2329-6798.1000215
Lutsyk, Vorobeva
{"title":"Verification of Phase Diagrams by Three-Dimension Computer Models","authors":"Lutsyk, Vorobeva","doi":"10.4172/2329-6798.1000215","DOIUrl":"https://doi.org/10.4172/2329-6798.1000215","url":null,"abstract":"Present paper is the survey of the works, dedicated to the elimination of contradictions in the publications, which describe the calculated and/or experimental results of investigations of the three-component systems phase diagrams. Special approach to the construction of phase diagrams in the form of their assembling from the surfaces and the phase regions into the three-dimensional (3D) computer model as the effective tool of the detection of the incorrect interpretation of the obtained experiment or of errors in the thermodynamic calculations of the phase diagrams fragments, caused by a deficiency in the initial information, is proposed. 3D computer models of Au-Ge-Sn, Au-Ge-Sb, Ag-Au-Bi, Ag-Sb-Sn, Au-Bi-Sb T-x-y diagram are considered.","PeriodicalId":18605,"journal":{"name":"Modern Chemistry & Applications","volume":"88 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2017-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73043409","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: 2
Cross-linked and neutralized hyaluronic acid-based drug delivery systems 交联和中和透明质酸为基础的药物输送系统
Modern Chemistry & Applications Pub Date : 2017-03-01 DOI: 10.4172/2329-6798-c1-009
pAdam Juhaszp
{"title":"Cross-linked and neutralized hyaluronic acid-based drug delivery systems","authors":"pAdam Juhaszp","doi":"10.4172/2329-6798-c1-009","DOIUrl":"https://doi.org/10.4172/2329-6798-c1-009","url":null,"abstract":"","PeriodicalId":18605,"journal":{"name":"Modern Chemistry & Applications","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88656964","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: 2
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