Design And Synthesis Of Microporous Compounds Based On Metal Clusters (oxygen,halides)

Microporous materials based on aluminosilicate zeolites have large-scale technological applications in ion exchange, separation, and catalysis. During the last 20 years, this domain has been expanded from aluminosilicates to many other functional materials. Recently, chalcogenides and halides have received much attention for the construction of microporous materials. Especially, copper(I) halides have stimulated considerable research interest because of their intense emissions, tunable emission energies, and dual emissions due to their juxtaposed excited states.Cu(I) is capable of combining sulfite ion with various modes, which can not only give rise to different dimensional frameworks, but also can be used as SBU for the construction of novel 3-D open framework with the second metal such as Cd and Mn. Meanwhile, Cu(I) ions can be bridged by halide ions withμ2-,μ3-,μ4- and evenμ6- coordination modes forming a variety of neutral clusters with stoichiometry [(CuX)mLn] (L=organic ligand) as well as different anionic clusters [CuxXy]y-x.This thesis was aimed at the synthesis and characterization of novel zeo-type copper sulfite frameworks and a series of copper halides functional materials. The as-synthesized compounds have been characterized by single crystal X-ray structural analysis, IR, elemental analysis, Powder X-ray diffraction, TGA, ion-exchange and fluorescence and so on. The main results are as followed:1. Two copper sulfites with zeo-type 2-D layer and 3-D frameworks have been hydrothermally synthesized and characterized.2. A series of copper sulfite containing transition metals with different dimensional frameworks have been synthesized.3. Using DABCO as organic structure-directing agents, three copper halides with one-dimensional helical chain, two-dimensional layer and three-dimensional network were prepared under different reaction conditions.4. Using DABCO as linker, two novel three-dimensional neutral copper iodide networks with novel properties have been synthesized.