The Investigation Of Anion-driven Structures, Sensing And Separation Properties Of Metal Organic Frameworks (MOFs)

The organic- inorganic coordination polymer based on self-assembly strategy is one of the new organic- inorganic compound functional materials. In this thesis, based on the studies of coordination polymer properties, with the subject of anion, The research of Cu(II)-MOF about sensing and its micro mechanism on anion and separation was carried out; The construction of a kind of functional composite film material utilizing MOFs and macromolecule polymers, the post-synthestic modification of MOFs thin films were also investigated. In addition, The self-assembly coordination chemistry of nitrogenous organic ligands and mental ions, screening of composite functional self-assemblycompounds were also involved.I A more deep research of Cu(II)- MOF- OTf materials which contains CF3SO3-with the relatively weak coordination ability about the visibility of the sensing and its mechanisms on anions Cl-, Br-, I-and halogenoid ions such as SCN-and N3-,reversible, detection limit of these halogen anions had been carried out. Composite membrane materials utilizing MOFs with the polymer PVDF and TCA had been constructed successfully and used for recognition and separation of arget anions.II The fundamental research of mutual transformation between the prepared Cu(II)-NO3-MOF and Cu(II)-OTf-MOF by anion exchange had been carried out. Wh ich indicated the feasibility of the membrane material in the matrix based on different anion MOFs. It is a good beginning to be continue to explore adsorption separation performance of two different MOFs thin film materiasls on the substrate or device,in view of this, we will explore to build the MOF thin film materials used for SPME device as membrane material in the SPME extraction, In consideration of the diversity of film-forming performance of MOFs containing different anions, in situ ion exchange had been designed in order to further explore the adsorption separation properties of organic molecules, etc.III Different organic functional groups had been grafted in turn on 2, 7 and 9 of fluorene ring, Ten nitrogenous organic ligands were synthesized,The chemistry of related self-assembly coordination polymers had been studied.