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Synthesis, Crystal Structures of Zn(Ⅱ), Cd(Ⅱ) Coordination Polymers with N-containing Heterocyclic Ligands

Author: ZengZhiHui
Tutor: HuangXiaoChun
School: Shantou University
Course: Inorganic Chemistry
Keywords: Self-assembly , niacin Reaction time d10 metal complexes Photoluminescence
CLC: O641.4
Type: Master's thesis
Year: 2009
Downloads: 236
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Abstract


Some simple small volume containing N, O ligands as research object, focusing on the class of (hydroxy) nicotinic acid, and two common azole ligands, and on this basis, the introduction of linear second ligand ligand research some laws and the internal mechanism of these ligands to build a complex process, and synthesis of a series of d10 metal Zn (II), Cd (II) novel one-dimensional, two-dimensional and three-dimensional functional complexes, and these complexes The crystal structure and fluorescence properties were characterized. This paper is divided into four chapters. The first chapter of the self-assembly of supramolecular chemistry, design principles complexes, influencing factors and Synthesis, and simple principle of carboxylic acid and complex photoluminescence do an overview of the significance of the topic of the paper at the same time . The second chapter 6 - hydroxy acid (Hhnta) ligand bipyridine class ancillary ligands as the object of study, to explore the impact of the change of the reaction time of assembly structure, synthesis and characterization of six complexes: [Zn 2 (NO 3 ) 2 (H 2 O) 2 (bpy) (hnta) 2 ] (1), [Zn4 (μ3-OH) 2 (μ-bpy) 2 (μ3-hnta) < sub> 2 (μ-hnta) 2 ] (2), [Zn (bpe) (NO3) 2 ] n (3), [Zn4 ( μ3-OH) 2 (μ-bpy) 2 (μ3-hnta) 1.75 (μ-5-NO2-hnta) 0.25] n (4), [Zn ( H 2 O) 6] (Hhnta) 2 (5), [Cd (bpp) 4] Cl2 (6). Complexes 2 and 4 structurally similar complexes 1 and 3 into a 3D network by changing the reaction time of the two-dimensional double-layer staggered. In addition, by changing the length of the connecting body 5 and 6 complexes. This chapter explores the influence of the reaction time for us to design synthetic complexes provide some new ideas. Chapter 2 - hydroxy acid (H 2 nico) and (iso) nicotinic acid (Hpyca, HIN) at the same time the introduction of the second linear connected body with Zn (II), Cd (II) synthesis and characterization of the fluorescence properties of the complexes. The Hydrothermal Synthesis get five novel complexes: one-dimensional chain [Cd (nico) (bpy) 0.5 (H 2 O) 2 ] n (7), a dimensional ladder [Zn (bpy) (Hpyca) (pyca) (NO3)] n (8), three chain [Zn 2 (bpe) 2 (NO3) 4] n (9), King Kong alkoxy triple interludes [Zn (HIN) 2 (IN) of 2 ] n (10) and the three-dimensional structure of [Cd2 (C4H4O4) (IN) 2 ] n (11). Chapter 1,2,4 - triazole (HTa) and the 5 - Aminotetrazole (HATa) as the primary ligand and Cd (II) under hydrothermal conditions, three novel complexes: two-dimensional lattice [Cd3 (Ta) 2 (C4H4O4) (H 2 O) 4 (SO4) 2 ] n (12), three-dimensional the structures [Cd 3 (Ta) 2 Cl2 (H 2 O)] (NO3) 2] n (13) and three-dimensional structure [Cd1.5Cl (Ata) 2 (CH3CH 2 OH)] n (14);

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