Dissertation > Excellent graduate degree dissertation topics show

The Solvothermal Syntheses and Characterizations of Transition Metal-contained Chalcogenidoarsenates

Author: PanYingLi
Tutor: JiaDingXian
School: Suzhou University
Course: Inorganic Chemistry
Keywords: Chalcogenidoarsenates Transition metals Solvothermal synthesis Crystal structure
CLC: O611.4
Type: Master's thesis
Year: 2011
Downloads: 22
Quote: 0
Read: Download Dissertation

Abstract


Recently extensive interest has been focused upon the Main Group chalcogenidometalates due to their promising photoconductivity, photoluminescence and nonlinear optical properties. The solvothermal reaction is becoming a versatile route to the chalcogenidometalates. The incorporation of transition metals with chalcogenidometalates will not only give rise to the change of structure, but also endue chalcogenidometalates with new properties. In this work, the major studies are as follows:1. The chalcogenidoarsenates [Fe（en）3]2As2S5（1）, [Co（dien）2]As2Se6（2） ,[Ni（dien）2]As2Se6（3） and [Mn（dap）3]As2Se6（4） with the [As2S5]4-and [As2Se6]2-anions were synthesized by solvothermal method in en, dien and dap solvents.Discussing the influence of ethylene polyamines and the starting materials on the chalcogenidoarsenates.2. The transition metal-contained thioarsenates [Fe（phen）3][As3S6]-dien-7H2O（5） and [Mn2（phen）4（As2S5）]-phen-2H2O（6） were synthesized using the ligand 1,10-phenanthroline （phen） under hydrothermal conditions. 1,10-Phenanthroline was first used in the preparation of compand 5 which contains an infinite 1D chain of water molecules under hydrothermal conditions. The [As2S5]4– anion acts as a tetradentate brigding ligand in the compand 6 and discuss the influence of the organic ligands on the thioarsenates.3. The transition metal-contained selenidoarsenates [Ni（phen）3][As2Se2（μ-Se3）（μ-Se5）]（7）, [Ni（phen）3]2As8Se14（8）, [Mn-2（phen）4（μ-η2,η2-AsSe4）]2[As2Se6]-H2O（9）, [Zn（phen）（dien）]As2Se6·2phen（10） and [Fe（phen）3]As2Se6（11） were synthesized using the ligand 1,10-phenanthroline under solvothermal conditions. Polyselenidoarsenates 7, 9, 10, 11 were synthesized in CH3OH solvent and selenidoarsenate 8 were synthesized in H2O solvent. The novel polyselenidoarsenate chain [As2Se2（μ-Se3）（μ-Se5）2-]∞with μ-Se32-和μ-Se52- and a new selenidoarsenate aggregate [As8Se14]4– with condensation grade of above 0.50 are observed in 7 and 8 respectively.4. The synthesized chalcogenidoarsenates were characterized by elemental analysis, IR and X-ray crystallographic, and their thermal stability were also investigated.

Related Dissertations

  1. Urothermal Synthesis, Structure and Characterization of Functional Coordination Polymers,O631.3
  2. Syntheses, Structures and Properties of Metal-organic Frameworks Based on Dicarboxylate Ligands,O621.13
  3. Synthesis and Characterization of Aromatic Amidinate Supramolecular and Phosphorus Imido Compounds,O621.2
  4. Aza- β- diimine complexes and hypophosphorous acid synthesis and structural characterization,O627.51
  5. Pyridine-containing gene four tetrathiafulvalene Synthesis and Structural Characterization,O621.3
  6. Syntheses, Structures and Properties of Metal-organic Coordination Polymers Based on Long-Chain Aromaticmulticarboxylate,O631.3
  7. Solvothermal Synthesis of Indium Chalcogenides Integrated with 2,2’–Bipyridine,O627
  8. Synthesis, Conformation and Character of W/Cu/S Supermolecule Clusters Containing Tp~* Group,O611.4
  9. Construction, Characterization and Properties of Tp~*-Containing W/S/Cu Clusters,O611.4
  10. Syntheses, Structures and Characteristics of Coordination Polymers with Bis-triazole,O633.5
  11. Syntheses and Characterizations of Coordination Polymers Containing Bis-imidazole Ligands,O633.5
  12. Theoretical Study on Structure and Property of Binary Composite Oxide α-(Al1-xYx)2O3,O469
  13. Topological Structural Design and Properties of Metal-Organic Crystalline Material,O627
  14. Synthesis, Characterization and Simulation of Urease Activity of Nickel Complexes of New Derivatives of Salicylhydrazide,O627.8
  15. Solvothermal Synthesis and Crystal Structure of Organic Hybrid Chalcogenidogermanates,O627.3
  16. Expression, Purification and Crystallographic Analysis of the Abscisic Acid Receptor,Q946
  17. The Synthesis, Crystal Structure and Properties of Functional Coordination Polymer Base on Nitrogen and Oxygen Multituberculate Ligand,O631.3
  18. Study on the Upconversion Luminescence of Yb: Ho: PbWO4 Crystals,O734
  19. Effect of Multi-metal Ion Co-doping on Magnetism of ZnO Crystals,O482.5
  20. Crystal Structure, Characterization of the Copper (Ⅱ) Complexes, and Preparation of CuO Nanoparticle Based on Phenylacetic Acid Ligand,O627.12
  21. Keggin and Anderson type new complex synthesis and crystal structure,O621.3

CLC: > Mathematical sciences and chemical > Chemistry > Inorganic Chemistry > Chemical elements and inorganic compounds > Inorganic synthetic chemistry
© 2012 www.DissertationTopic.Net  Mobile