Dissertation > Excellent graduate degree dissertation topics show

Study on the Synthesis, Structure and Property of Inorganic-Organic Hybrid Compound Based on Polyoxometalates

Author: ZhangZhuo
Tutor: ZhangLiJuan
School: Beijing University of Chemical Technology
Course: Analytical Chemistry
Keywords: Inorganic - organic hybrid compounds Polyoxometalates Coordination polymers Crystal structure
CLC: O611.3
Type: Master's thesis
Year: 2006
Downloads: 150
Quote: 1
Read: Download Dissertation

Abstract


Polyoxometalate building block of inorganic - organic hybrid compounds is based on the crystal engineering principles to select the appropriate transition metal ions as templates ( templating ) multidentate organic ligand and the polyoxometalate building blocks ( the building block) to be assembled to constitute the inorganic- organic hybrid compound. Polyoxometalate (polyoxometalates) its specific has superior physical and chemical properties , has become an important construct new molecular - based functional materials inorganic building blocks , the last decade, the polyoxometalate building blocks inorganic - organic hybrid compounds because of their unique optical , electrical and magnetic properties of more and more attention . The experimental content of this paper is divided into two parts : First, NiCl 2 · 6H 2 < / sub> O , 1,3 - linked (4 - pyridyl ) propane (bpp ) , NH 4 VO 3 as raw material, the to hydrothermal method successfully synthesized inorganic - organic hybrid compound [Ni (bpp) 2 ] 2 (V 4 O 12 ), where ( V 4 O 12 ) < sup > 4 - and flexible organic ligand bpp as building blocks , Ni (Ⅱ) as a template . The crystal structure analysis showed that the compound has a three-dimensional network structure belongs to the tetragonal space group I4 with unit cell parameters : a = 21.470 ( 3 ) ( ? ) , B, = 21.470 ( 3 ) ( ? ) , C = 12.929 (3) (?), α = β = γ = 90 °. In this compound , the positive ion coordination polymer layer ~ 2 ∞ [ Ni (bpp ) < / sub> the 2 by flexible bpp molecular chain interspersed with each other , interpenetrating layer formed between a lot of cavities , (V 4 O 12 ) 4 - ions are located in the cavities of each ( V < / sub> O 12 ) 4 - . Ions through four exocyclic oxygen atom with an interpenetrating network of Ni ( II ) ligand , thereby constituting a three - dimensional covalent skeleton of the compound as a whole . The compound obtained by diffuse reflectance spectroscopy , the energy gap (Eg) of 2.7eV, the semiconductor nature . Another part of the contents were to the CoCl 2 · 6H 2 O 4-CNpy , and NiCl 2 · 6H 2 < / sub > O and 4-CNpy as reactants hydrothermal method having a three-dimensional structure of the supramolecular compound

Related Dissertations

  1. Urothermal Synthesis, Structure and Characterization of Functional Coordination Polymers,O631.3
  2. Flexible,rigid,Synthesis and characterization of mixed ligand complexes,O621.1
  3. Syntheses, Structures and Properties of Metal-organic Frameworks Based on Dicarboxylate Ligands,O621.13
  4. Synthesis and Structures of Metal (Mn, Zn and Sn) Complexes Incorporating with the Sily-linded Bis (Amidinate) Ligands,O621.2
  5. Synthesis and Characterization of Aromatic Amidinate Supramolecular and Phosphorus Imido Compounds,O621.2
  6. More than enough calcium and magnesium metal ligand complexes Synthesis, Structural Characterization and Antibacterial Activity,O641.4
  7. Arsenic and antimony chalcogenides Solvothermal Synthesis and Characterization,O641.4
  8. Aza- β- diimine complexes and hypophosphorous acid synthesis and structural characterization,O627.51
  9. Pyridine-containing gene four tetrathiafulvalene Synthesis and Structural Characterization,O621.3
  10. IVA metal chalcogenides Solvothermal Synthesis and Structure,O611.4
  11. Structural and Functional Studies of Saccharomyces Cerevisiae Aldo-keto Reductase Gre2,Q936
  12. Syntheses, Structures and Properties of Coordination Polymers with Aromatic Dicarboxylates,O631.1
  13. Syntheses, Crystal Structures, and Adsorption Properties of Novel Tetracyanometallate-based Coordination Polymers,O631.3
  14. Syntheses, Structures and Properties of Metal-organic Coordination Polymers Based on Long-Chain Aromaticmulticarboxylate,O631.3
  15. Assembly, Structures and Properties of Metal-Organic Frameworks Based on Flexible Aromatic Carboxylic Acid,O621.13
  16. Solvothermal Synthesis of Indium Chalcogenides Integrated with 2,2’–Bipyridine,O627
  17. Synthesis, Conformation and Character of W/Cu/S Supermolecule Clusters Containing Tp~* Group,O611.4
  18. Construction, Characterization and Properties of Tp~*-Containing W/S/Cu Clusters,O611.4
  19. Synthesis、Structures and Characters of Coordination Polymers of Aromatic Carboxylic Acid,O631
  20. Syntheses, Structures and Characteristics of Coordination Polymers with Bis-triazole,O633.5
  21. Syntheses and Characterizations of Coordination Polymers Containing Bis-imidazole Ligands,O633.5

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