Dissertation > Excellent graduate degree dissertation topics show

Studies on the Synthesis and Photoluminescence Property of the Novel Bis-Schiff Base Metal Complexes

Author: GaoJingJie
Tutor: WenFuShan
School: China University of Petroleum
Course: Chemical Engineering and Technology
Keywords: bis-schiff base metal complexes photoluminescence
CLC: O641.4
Type: Master's thesis
Year: 2010
Downloads: 112
Quote: 0
Read: Download Dissertation

Abstract


Recently, more and more organic electroluminescence devices were used in the flat panel display field because of the low energy consume and the excellent luminescent properties. Many interests have also been paid to the research of organic luminescent materials. Among the luminescent materials, the metal complexes with bis-schiff base as ligand could be a kind of excellent luminescent materials because they can fit with the conditions of charge balance and saturated coordination number.In this paper, a series of research were carried out in order to get a kind of good compounds with high fluorescence efficiency and tunable wavelength.First, a pair of bis-schiff base ligands, salicylidene ethylenediamine （L1） and N, N’-dibenzoyl ethylenediamine （L2）, were prepared by direct synthesis method. The synthesized compounds were approved to be pure phase by elemental analysis, NMR and IR. The weak blue emission can be found from the fluorescence spectrum of the bis-schiff base ligands of the L1 and L2. The L1 ligand and transition metal ions Zn2+ can be formed complexes Zn （L1）2 with good emission property. Both Zn2+ and Eu3+ could react with the L2 liangd to form metal complexes. While the former is the central atom perturbation complexes ligand emitting Zn （L2） 2 and the latter is the ligand perturbation of the central atom emitting complexes Eu （L2） 3.Through a variety of research of two-ligand complexes, L2 and 8-hydroxyquinoline with metal ions Zn2+ can form a kind of double-ligand complexes with tunable wavelength and strong emission. The luminescent intensity of single-ligand complex of Eu3+ with benzoic acid can be increased with a little of L2 was introduced in the reaction system.

Related Dissertations

  1. Theoretical Analysis of the Circular Dichroism Spectra of Transition Metal Schiff-Base Complexes,O641.4
  2. Chitosan Supported Metal Complexes and Their Catalytic Oxidation Resistance,O634
  3. Eu- doped α-SiAlON phosphor First-principles study,TB34
  4. Syntheses, Structures and Properties of Transition Metal Complexes Based on Pyridyl Ligands,O627.2
  5. Investigation of the Molecular Structure Characterzation of Organic Compounds by Ion-Trap Mass Spectrometry,O657.63
  6. Synthesis, Characterization and Properties of One-dimensional Silicon Carbide Nanomaterials,TB383.1
  7. Synthesis of Manganese Complex of Briding Macrocyclic Polyamine and Analysis of Its Catalytic Activity in Low Temperature Bleaching Cotton Fabric Using H2O2 as Oxidant,TS192.2
  8. Terphenyl liquid crystal containing chiral polyacetylene Synthesis and Properties,O631.3
  9. Amphiphilic substances and metal complexes with DNA research,Q52
  10. Synthesis and Catalytic Oxidation Abilities of Montmorillonite Immobilized Schiff-base Complexes,O643.32
  11. Preparation of phase separation of the amorphous silicon oxide and nanocrystalline silicon mosaic silica,TN304.1
  12. Optical Properties of Zn-based Quantum Dots and Application in LED,O471.1
  13. Luminescence Properties of Thenardite Activated with Eu and Tb,O482.31
  14. Study on Preparation and Properties of Fluorescent Offset Printing Ink,TS802.3
  15. Carbothermal reduction and the preparation of silicon carbide nanowires its performance,TB383.1
  16. Surface deposition of copper thin film of porous silicon , Preparation and luminescence characteristics of,TB383.4
  17. Hydrothermal Preparation and characterization of nano - ZnO and yttrium aluminum garnet,TB383.1
  18. Controllable Growth and Properties of ZnO Nanorod Arrays,TB383.1
  19. Preparation and Luminescence Properties of SnO2 Nano-materials and Eu3+-doped SnO2 Nano-Particles,TB383.1
  20. Synthese, Structureand Characterization of Transition Metalcomplexes with Heterocyclic Carboxylic Ligands,O621.13
  21. Synthesis and Characterization of the main chain conjugated polymers and ruthenium complexes containing bipyridine,O631.3

CLC: > Mathematical sciences and chemical > Chemistry > Physical Chemistry ( theoretical chemistry ),chemical physics > Structural Chemistry > Complex chemistry ( coordination chemistry )
© 2012 www.DissertationTopic.Net  Mobile