| Metal-Organic Frameworks(MOFs) are ordered frame structures consisting of metal ions or clusters coordinated to organic molecules, which have extensive application prospects in gas adsorption and separation, catalysis, optics and magnetics due to their porosity, high surface area, unsaturated-coordinated metal sites, and possibility for post decorate. Thus synthesis of MOFs with novel structure from appropriate metal ion and organic ligand and exploitation of their potential application have been considered as current research focus. In this thesis, a series of MOFs consisting of 5-(3,4-Dicarboxy-2,5-dimethyl-cyclopenta-2,4-dienyl)-isophthalic acid and copper ion were synthesized by solvent-thermal method, characterized by XRD, FT-IR, TG, and applied to catalysis reaction according to their structure features. This work mainly includes two parts:A novel ligand 5-(3,4 Dicarboxy-2,5-dimethyl-cyclopenta-2,4-dienyl)-isophth alic acid was designed and synthesyzed, and two open porous MOFs were syn thesyzed with this ligand and copper ion under thermal solvent. Crystallographi c analysis shows that both two MOFs with different framework structure consi st of novel secondary building units,―butterfly-like‖tetranucleotide Cluster. Top ological analysis indicates that structure of compound 1 is ant and 2 is flu. Si nce the copper center of both two compunds are unsaturated-coordinated after removing coordinate.H2 O thus capable to be lewis acid center, their catalysis p erformance in The epoxidation of styrene was investigated.2D layered compunds was synthesyzed with solvothermal method, copper and bbi as ancillary ligand by solvent-thermal method. Crystallographic analysis shows that its copper center undersaturated four-coordination, with Lewis acid center, and N atoms in the secondary ligand are base acid. Due to the presence of both acid and base center, Knoevenagel condensation reaction was introduced as probe reaction to investigate the catalysis performance of compund 3. |
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