Dissertation
Dissertation > Mathematical sciences and chemical > Chemistry > Organic Chemistry > Heterocyclic compounds > Containing five pairs or more different atoms of heterocyclic > Between the two nitrogen -mao ( imidazole) and its derivatives

Research on Physical Chemistry Property and Ultraviolet Spectra of Imidazole RTIL

Author ZhangMiaoYi
Tutor TianPeng
School Shenyang Normal
Course Analytical Chemistry
Keywords Ionic liquids Surface tension Index of refraction UV spectra
CLC O626.23
Type Master's thesis
Year 2011
Downloads 237
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Experimental Synthesis series bromide 1 - alkyl - 3 - methyl imidazole and nitric acid 1 - alkyl - 3 - methylimidazolium ionic liquids. To give the intermediate alkyl bromide and N-methyl imidazole bromide 1 - alkyl - 3 - methyl imidazole, and then the intermediate bromide 1 - alkyl - 3 - methyl imidazole nitrate and sodium nitrate obtained 1 - alkyl-3 - methylimidazolium ionic liquids, and synthetic substances were characterized by infrared. The detailed study carried EMINO3, PMIBr PMINO3 BMIBr BMINO3 AMIBr AMINO3, HMIBr, HMINO3, HEMIBr, HEMINO3, OMIBr OMINO3 ionic liquid's surface tension. 273.15K-343.15K bromide 1 - alkyl - 3 - methyl imidazole and nitric acid 1 - alkyl - 3 - methylimidazolium ionic liquids surface tension with temperature changes was determined regularity obtained Preparation of 1 - alkyl-3 - methyl imidazole and nitric acid 1 - alkyl - 3 - methylimidazolium ionic liquids surface tension decreases with increasing temperature the conclusions. Also conducted a series of bromide, 1 - alkyl - 3 - methylimidazo ionic liquid surface tension and a series of nitric acid 1 - alkyl - 3 - methylimidazo ionic liquid surface tension of Comparative analysis of the carbon chain length of its surface tension impact, to come to the surface tension gradually decreases along with a gradual increase of the carbon chain, the conclusions. Also the impact of the ion size of the liquid surface tension of different anions inquiry, to draw a given cationic, anionic, the greater, the greater the surface tension of the conclusions finally calculate the ionic liquid surface entropy, surface energy and the grain The grid can. Experimental study EMINO3, PMIBr PMINO3 BMIBr BMINO3 AMIBr, AMINO3, HMIBr, HMINO3, HEMIBr, HEMINO3, OMIBr OMINO3 ionic liquid refractive index. Determination 273.15K-343.15K bromide 1 - alkyl - 3 - methyl imidazole and nitrate 1 - alkyl - 3 - methylimidazolium ionic liquids a refractive index change with temperature regularity obtained Preparation of 1 - alkyl-3 - methylimidazole and nitric 1 - alkyl - 3 - conclusions methylimidazolium ionic liquids refractive index decreases with increasing temperature. Series bromide 1 - alkyl-3 - methylimidazolium ionic liquid refractive index and a series of nitric acid - alkyl-3 - methylimidazolium ionic liquids refractive index of the comparative analysis of the length of the carbon chain of its refractive index size the impact obtained with a gradual increase of the carbon chain, the refractive index gradually decreases along the conclusions. Also different anions on the size of the ionic liquid refractive index inquiry, derived anion volume the greater the refractive index is larger. Finally, the UV spectrum quantitative analysis of water, ethanol, acetonitrile EMINO3, PMINO3 AMINO3, HMINO3 ions liquid content, the standard curve and the standard addition method measured water, ethanol, acetonitrile EMINO3, PMINO3 AMINO3, HMINO3 recoveries .

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