Dissertation > Excellent graduate degree dissertation topics show

Studies on Kinetics and Mechanism of Oxidation of Some Amino Compounds by Ag(Ⅲ) Complex Ion

Author: WangHeYe
Tutor: DanJinHuan
School: Hebei University
Course: Physical and chemical
Keywords: kinetics and mechanism redox reaction diperiodatoargentate(Ⅲ) 2-aminoethanol 3-amino-1-propanol 2-amino-1-butanol glycyglycine sodium sulfanilate
CLC: O643.12
Type: Master's thesis
Year: 2009
Downloads: 15
Quote: 0
Read: Download Dissertation

Abstract


Kinetics and mechanism of oxidation of 2-aminoethanol,3-amino-1-propanol, 2-amino-1-butanol, glycyglycine and sodium sulfanilate by Ag(Ⅲ) in alkaline medium were studied by spectrophotometry in this paper. The change of kobs with different [reductant], [OH-], [IO4-] and ionic strength were studied, the determining-step rate constants at different temperatures and the activation parameters at 298.2 K were evaluated.The reactions were found to be first order with respect to DPA,3-amino-l-propanol and 2-aminoethanol and sodium sulfanilate,1.30-1.35 order to glycyglycine, fractional order to 2-amino-l-butanol. Simultaneously, the rate of 3-amino-l-propanol and 2-aminoethanol is faster than that of the glycyglycine and sodium sulfanilate. The reason is that a stable ring complex is formed in the reaction of DPA with aminoalcohol compounds. In additional, the rate constants of the slow step of 2-amino-l-butanol is much smaller than that of 2-aminoethanol, this show that steric effects is greater in this type reaction.The results show that the mechanisms of oxidation of three types of amino-compounds by DPA are similar. We put forward the main existing form of DPA is [Ag(OH)2(H2IO6)2]5- in alkaline medium, and the activation center of DPA in the reaction is [Ag(OH)2(HIO6)]3-. There is good agreement between the experimental phenomena and the mechanisms that have been suggested.The present discuss and study will provide certain theoretical foundation for the reaction route design of the organic synthesis and quantitative analysis of analytical chemistry. Form the macrosopical experimentation phenomena, we can explain the microstructure of the complex, and conjecture the stability and stucture of the transition state, it is very significative for the development of theory of coordination chemistry.

Related Dissertations

  1. Electrochemical Treatment of pesticide intermediates ( phthalonitrile ) Wastewater,X786
  2. Kinetic and Mechanistic Studies of Reduction of the Cr(Ⅵ) by Hydroxyl Compounds,X13
  3. Study on the Modified Fly Ash and Its Decolorizing Performance to the Azo Dye Wastewater,X703
  4. Studies on Kinetics and Mechanisms of Oxidation of Special Functional Amino Acids and α-Diols by Ag(Ⅲ) Complex,O643.12
  5. Study of Visible Spectrophotometric in Determination of Reductive Substances,R927.2
  6. Kinetics and Mechanism of the Anticancer Prodrug Pt(Ⅳ)、Au(Ⅲ) by Special Functional Amino Acids and Salicylic Acid,R96
  7. Biosorption Properties of Cu(Ⅱ) Ions from Aqueous from Solutions Using Biosorbent of Modified Pine Bark,X703
  8. Study on Effect in Biomaterial and Kinetics and Mechanism of Oxidation of L-Proline,O621.2
  9. Kinetics and Mechanism of Transition Metal Ions Catalyzed Oxidation by Ce(Ⅳ),O643.32
  10. Kinetics of Oxidation of Some Substances of Alcohols and Amines by Cu (Ⅲ) in Alkaline Medium,O643.1
  11. β_2- adrenergic agonists Synthesis and activity of phenylethanolamine,R914
  12. Studies on Toughening of Epoxy Resin by Useing a Polymer with Active Epoxy Groups,TQ323.5
  13. High school teaching issues at different stages of the oxidation-reduction reaction and Strategies,G633.8
  14. Study on Sludge Activated Carbon Preparation and Its Adsorption Properties of Phenol and Nitrobenzene,X703
  15. Rolling on the Zr-based amorphous alloy heated CRYSTALLIZATION kinetics,TG139.8
  16. Fe (VI) oxidation of alcohols with amines, alcohols, organic reaction kinetics,O621.2
  17. The Study of Adsorption of Cd2+ and Pb2+ from Aqueous Solution by Modified Peanut Shells,X703
  18. Study on the Synthesis of Schiff Base Metal Complexes and the Kinetics of Curing Epoxy,O631.3
  19. Copper and zinc efficient refractory sulfide ore flotation separation of theory and application,TD952
  20. Kinetics of Oxidation of Some Amino Compounds and Hydroxy Acid by Cu(III) Complex Ion,O643.12

CLC: > Mathematical sciences and chemical > Chemistry > Physical Chemistry ( theoretical chemistry ),chemical physics > Chemical kinetics,catalysis > Chemical kinetics > The mechanism and kinetics of chemical reactions
© 2012 www.DissertationTopic.Net  Mobile