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Synthesis, Structure and Photoluminescence Research of Cu(Ⅰ) Coordination Polymer Based on 4-(4’-pyr

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Tutor: YinYeGao
School: Shantou University
Course: Inorganic Chemistry
Keywords: The Cu ~ Ι coordination polymer,4 - (4'- pyridyl ) pyrazolo,The role of pro- co
CLC: O641.4
Type: Master's thesis
Year:  2008
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Abstract:
The internal structure of the cell characteristics and inter-unit linkages largely determine the macroscopic properties of the ligand polymer body. This structural relationship has also become one of the principles followed by the coordination polymer structure and nature of the design. In recent years, in order to obtain the desired structure and properties of coordination polymers, from the bottom up design ideas are widely used in coordination polymer synthesis and properties of. The focus of this paper is based on 4 - (4'-pyridyl) the pyrazole (Hppz) as ligand the solvothermal synthesis Series CuΙ coordination polymer from which to explore the pyrazole ring side chain alkyl coordination polymers self-assembly, as well as some of the research which product photoluminescent properties, thermal stability and structure. Study copper - pyrazolo salt [Cu (PZ?)] 3 (Cu3) to build a basic unit coordination polymer fluorescence properties, we found that such compounds, there are some novel fluorescent thermal color phenomenon, and this The phenomenon of the preliminary discussion. In addition, the OF hydrothermal synthesis a series one-dimensional CuΙ of polymer chain, through the related configuration data, it is found that the biasing force of the supramolecular hydrogen bonding, hydrophobic effects, etc. have significant impact on the role of copper supported on non-ligand affinity, and the fluorescent properties of the related compounds conducted a preliminary study. Chapter 1 priority reviewed and summed up the role of pro-metal assembly and fluorescence properties of multi-core d10 metal complex structure. The role of pro-metal build several classic metal clusters divided into several categories: simple stacking mode of three nuclear monovalent d10 metal complexes of molecules (M3) and its fluorescence mere mention of the phenomenon; copper iodide clusters, especially Cu4I4, (Py) 4 clusters novel thermochromic phenomenon and its luminous vest identified; structural characteristics and related compounds, sulfur and copper clusters and multi-core d10 metal acetylide fluorescent thermochromic phenomenon. In addition, the combination of the structural features of the ligand on the content and meaning of this thesis. Chapter 2, 3,5 - dimethyl-4 - (4'-pyridyl) pyrazolo (Dmppz), 3,5 - diethyl-4 - (4'-pyridyl) pyrazolo (Deppz) as ligands, synthesized by solvothermal method six the Cu3 configuration for the building blocks of coordination polymers [Cu (Dmppz)] 3 (1), {[Cu (Dmppz)] [CuCN] 3} ∞ ( 2), {[Cu (Dmppz)] 3 (CuI)} n (3) {[Cu (Deppz) 3] (CuI)} n (4), {[Cu (Deppz) 3] (CuI) 2} n (5) {[Cu (Deppz) 3] (CuSCN)? (CH3CN)} n (6) and an alternative triple-core copper center coordination polymers {Cu3 (Deppz) (CN) 2} n. The single-crystal X-ray diffraction characterization of the crystal structure and the analysis of their intermolecular pro-copper and some other weak interactions. Through structural analysis and comparison summarized ligand pyrazole ring on the type of alkyl chains in a similar synthesis conditions under influence of the self-assembly of molecules. In addition, the coordination polymers of different structural characteristics at low temperature photoluminescence behavior classification discussion, preliminary interpretation of some novel phosphorescent thermochromic phenomenon. Chapter 3 as a ligand to Dmppz, Deppz similar hydrothermal synthesis reaction conditions, a series of low-dimensional Cu (?) Coordination polymer [Cu (Dmppz) Cl] ∞ (8), [Cu (Dmppz ) Br] ∞ (9), [Cu (Deppz) Cl] ∞ (10), [Cu (Deppz) Br] ∞ (11), [Cu2 (Deppz) 2I2] ∞ (12). The crystal structure analysis showed that these coordination polymers ,8-11 is a one-dimensional chain of isomorphism, and 12 is a the Cu2I2 unit and ligand Deppz to build the two-dimensional planar structure. Isomorphic four compounds, focusing on comparative analysis of two adjacent affinity between the role of copper in the one-dimensional chain with N (C)-H ... Cl (Br) hydrogen bonds, hydrophobic alkyl chain effects of weak interactions relationship. The analysis results show that the addition to hydrogen bond \.
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