Dissertation > Excellent graduate degree dissertation topics show

Syntheses and Structure of Tri-vacant Polyoxometalate Derivatives

Author: DongHongBo
Tutor: ChenYaGuang
School: Northeast Normal University
Course: Inorganic Chemistry
Keywords: Polyoxotungstate Inorganic-Organic Complexes Transition Metal Complexes dimeric tri-substituted polyoxoanion
CLC: O614
Type: Master's thesis
Year: 2010
Downloads: 23
Quote: 0
Read: Download Dissertation

Abstract


In this thesis, two supermolecular compounds based on tri-vacant polyoxometalates (POMs) and main or transition metal complexes with organic imizone were synthesized via self-assembly under ambient temperature and in aqueous solution, and characterized by IR, TGA and single-crystal X-ray diffraction. These compounds are below:1.H6[Na3CuL6(H2O)3][(SiW9Fe3(OH)3O34)2(μ-OH)3]·18H2O (1), hexagonal crystal system, P63/mspace group, cell parameters a=16.3021(2) A,b=16.2991(2) A, c=29.7226(3),γ=120°; V=68446 (4) A3, Z=2。Dc=3.002 (g·cm-3). Final R1,wR2 [I>2σ(I)]为0.0310, 0.0829。2. H8[Na2L6][SiW9Al3(H2O)2O36(μ3-O2/2)]2·15H2O (2) triclinic crystal system, P-1space group, cell parameters a=11.9620162) A,b=12.85376(6) A, c=19.3188(10), a= 101.8460,β=92.6604,γ=115.6157°; V=2590.5 (4) A3, Z=1。Dc=3.506 (g·cm-3). Fina1 R1,wR2[I >2σ(I)]为0.0589,0.1681。Multiple intermolecular interactions drive the supramolecular assembly processes of these compounds. There exist hydrogen bond interaction between polyoxoanions with abundant oxygen on the surface and water molecules as well as organic amine groups, and the interaction makes molecules spread in 3-D space. The anions and cations array regularly according to the electrostatic interaction. The compounds mentioned in this thesis have these interactions and form 3-D suparmolecular structure.

Related Dissertations

  1. Syntheses, Structures and Properties of Transition Metal Complexes Based on Pyridyl Ligands,O627.2
  2. Based on the novel polyoxometalate hybrid compounds Hydrothermal Synthesis and Structural Characterization,O614
  3. Studies on Synthesis、 Monooxygenase-mimic and Hydrolase-mimic Performances of Benzo-10-aza-15-crown-5 Substituted Salicylaldimine Schiff Bases,O626
  4. Synthesis, Biomimetic Catalytic Oxidation and Selective Coloration of Novel N-Pivot Lariat Ethers,O621
  5. Oxidation state of the transition metal complexes of extraordinary Chemiluminescence System Research and Application,O657.3
  6. Study on Synthesis of Functional Supramolecular Complexes and Application on Catalytic Polymerization of Styrene in Emulsion,O641.4
  7. Synthesis and Catalytic Behavior of 2-(1H-2-benzimidazolyl)-6-(1-arylimino)Ethyl)Pyridine and 2-alkoxyimidate-1,10-phenanthroline Metal Complexes,O621.25
  8. Theoretical Studies on the Magnetic Properties of the Polynuclear Transition Metal Complexes,O641.4
  9. Theoretical Studies on Transition Metal Mediated Organic Reactions,O643.12
  10. Organio-inorgaic Hybrid Materials with Transition Metal Complesxes:Synthesis and Catalytic Properties in Alkene Epoxidation,O643.32
  11. Preparation and Properties of f/d Metal Complexes with Biomolecules Molecules,O641.4
  12. Synthesis 、 Crystalstuctureandproperty Studyof Thewells-dawson Lacunarypolyoxotungstate-Based Polyoxometalates,O611.3
  13. Synthesis, Characterize and Properties of Insensitive Explosive about Pyridine Derivatives,TQ560.1
  14. Synthesis, Crystal Structure and Properties of Fluoro-substituted β-Diketones Complexes,O641.4
  15. Synthesis, Properties and Function Studies on Unsymmetrical Porphyrins and Their Compounds,O641.4
  16. Synthesis, Characterization and Biological Activity of 2-substituted Porphyrin and Their Transition Metal Complexes,O641.4
  17. Synthesis and Characterisation of Multidentate Ligands Containing N and S Atoms and Their Transition Metal Complexes,O641.4
  18. Hydrothermal Synthesis and Characterization of the Inorganic-Organic Complexes Based on Polyoxotungstate,O621.2
  19. Catalytic Activity of Transition Metal Schiff Base Complexes: A Quantum Chemistry Study,O643.3
  20. Synthesis and Characterization of ethylenediamine ligand transition metal complexes based on bisacetylacetonate shrink,O641.4

CLC: > Mathematical sciences and chemical > Chemistry > Inorganic Chemistry > Metal elements and their compounds
© 2012 www.DissertationTopic.Net  Mobile