Rational Design, Assembly And Fluorescent Sensor Of Chiral Functional Materials Based On Metallosalan

Chiral metal-organic frameworks play an important role in diverse fields such asgas adsorption, chiral separation, asymmetric catalysis, chiral sensor and so on.Recently, metal organic materials have become a research hotspot of material forchemists. Consequently, we chose a carboxylic functional organic linker based onSalen as the basic building blocks, then restored to Sal an ligand, assembled withmetal ions Zn2+to build chiral metal-organic frameworks with novel structures andexploitable functions in this paper. The as-synthesized compounds were fullycharacterized by X-ray diffraction, powder diffraction and various characterizationmethods determine the structure of the two compounds, and studied the applicationsin chiral sensing properties in the solid state. This paper will be divided into threechapters:In Chapter1，the research background of MOFs was briefly summarized and therecent developments of chiral MOFs were highlighted, including their methods ofsynthese and applications in chiral separation，asymmetric catalysis and chiral sensor.Then the challenges and issues remained in this area were discussed.In Chapter2， a carboxylic-functionalized chiral Salan ligand H4L1wassynthesized and used to construct a chiral compound by self-assembly with Zn2+. Weused X-ray single crystal diffraction, powder X-ray diffraction, thermogravimetricanalysis to determine the structure of MOF1，and we studied the chiral sensorproperties. In Chapter3，chiral Salan ligand H4L1synthesized in the last chapter wasassembled with Zn2+under the other condition to from a three dimensional chiralstructure of MOF2, We also used the X-ray single crystal difrfaction, powder X-raydiffraction，thermogravimetric analysis and circular dichroism spectrum andultraviolet spectrum to determine structure of the MOF2，and studied the chiral solidfluorescence performance of it.In Chapter4，a summary of this thesis was made, and a prospect of researchdirection was given.