本文選題：非對稱 + 無機有機雜化��； 參考：《山西師范大學》2017年碩士論文

【摘要】：紫精類光致變色雜化材料由于其特有的性質而受到越來越多人們的關注。主要原因在于紫精是良好的電子受體,受光照射后會發(fā)生電子遷移,而紫精的加入使其雜化材料表現(xiàn)出良好的光致變色性能。本論文選取過渡金屬及鑭系金屬離子作為無機組分,以非對稱紫精配體作為有機組分,利用尺寸效應和電荷匹配等因素將二者復合到同一體系,進而研究其優(yōu)異的光致變色特性。本文詳細闡述與分析了八個配合物的合成、結構及光學性能,尤其探討了其光致變色的機理。本論文主要分為以下五部分:一、第一章簡要介紹了紫精類光致變色材料的研究背景、進展及實際應用,詳細陳述了光致變色配合物的變色原理,并展望了光致變色配合物的應用前景。二、第二章選用(HCPBPY).Cl及對苯二羧酸(H_2BDC)作為有機配體,與過渡金屬Cd鹽通過溶劑熱反應構筑了一對超分子異構體Cd(CPBPY)(BDC)(H_2O)]n(1)和{[Cd(CPBPY)(BDC)].H_2O}n(2)。化合物1呈現(xiàn)出(4,4)拓撲層,它是由Cd2 SBUs作為節(jié)點,BDC2-作為連接子,與向外伸出的CPBPY配體共同構筑而成�；衔�2是由BDC2-和CPBPY兩種有機配體連接單核Cd~(2+)形成(6,3)拓撲層,進而構筑成4重穿插的3D網絡結構。異構體1表現(xiàn)出可逆的光致變色和可控的發(fā)光性能,在空氣氣氛中著色的固態(tài)1a可以實現(xiàn)超長時間的電荷分離,這使其在太陽能轉化為電能方面具有潛在的應用價值。然而,異構體2在紫外燈下光照兩個多小時后仍沒有表現(xiàn)出光致變色行為。三、第三章仍選用(HCPBPY).Cl作為有機配體,與不同的過渡金屬鹽及鑭系金屬鹽通過溶劑熱反應合成了四個光致變色的熒光金屬有機配合物:[Cd(CPBPY)(BDC)(H_2O)_2](3),[Cd(CPBPY)(o-BDC)(H_2O)_2](4),[Cd_3(CPBPY)_2(BDC)3](5)和[La_2(NO_3)6(H_2O)4(CPBPY)_2.(H_2O)_2](6)�；衔�3、4和6在空氣中都呈現(xiàn)出可逆的光致變色和可控的熒光性能,化合物5只在惰性氣氛中表現(xiàn)出光致變色行為。值得注意的是,著色化合物4a和5a在空氣氛圍中能夠很快脫色,從而可以快速靈敏地探測氧氣。四、第四章主要選用(HCPBPY).Cl及對苯二羧酸(H_2BDC)作為有機配體,與過渡金屬Zn,Cd鹽在酸性條件下合成了兩個熒光金屬有機配合物:[Cd(CPY)_2](7)和[Zn CPy](8)�；衔�7和8不具有光致變色性能,主要是因為吡啶環(huán)發(fā)生了原位加氫反應。五、對本論文工作進行了總結,并展望了本課題的研究前景。
[Abstract]:The photochromic hybrid materials of purple sperm have attracted more and more attention due to their unique properties. The main reason is that purple sperm is a good electron acceptor, and the electron migration will occur after light irradiation, and the addition of violet essence makes the hybrid material exhibit good photochromism. This paper selects transition metal and lanthanide metal in this paper. As an inorganic component, an unsymmetrical violet ligand is used as an organic component, and the two are combined into the same system by size effect and charge matching, and the excellent photochromic properties are studied. The synthesis, structure and optical properties of the eight complexes are described and analyzed in detail, and the mechanism of photochromism is discussed in particular. This paper is divided into five parts as follows: first, the first chapter briefly introduces the research background, progress and practical application of ultraviolet photochromic materials. The principle of discoloration of photochromic complexes is described in detail, and the prospect of the application of photochromic complexes is prospected. Two, second Zhang Xuanyong (HCPBPY).Cl and benzene two carboxylic acid (H_2BDC) are used as organic compounds. Ligand, a pair of supramolecular isomers, Cd (CPBPY) (H_2O)]n (1) and {[Cd (CPBPY) (BDC)].H_2O}n (2), are constructed by the thermal reaction of the transition metal Cd salts. Compound 1 presents a (4,4) topological layer. The two organic ligands connect the mononuclear Cd~ (2+) formation (6,3) topology layer to construct a 4 heavy and interspersed 3D network structure. The isomer 1 shows reversible photochromic and controllable luminescence properties. The solid 1a in the air atmosphere can achieve super long time charge separation, which makes it potential for the conversion of solar energy into electric energy. However, isomer 2 still did not show photochromic behavior after more than two hours under UV light. The three, third chapter still selected (HCPBPY).Cl as organic ligand, and synthesized four photochromic metal organic complexes with different transition metal salts and lanthanide metal salts through solvent thermal reaction: [Cd (CPBPY) (H) (H) _2O) _2] (3), [Cd (CPBPY) (o-BDC) (H_2O) _2] (4), [Cd_3 (CPBPY) _2 (BDC) 3] (5) and 6 (6). Compounds and 6 exhibit reversible photochromism and controllable fluorescence in the air, and the compound 5 exhibits photochromic behavior in the inert atmosphere. The air atmosphere can be quickly decolorization so that oxygen can be quickly and sensitively detected. Four, the fourth chapter mainly uses (HCPBPY).Cl and phenylene two carboxylic acid (H_2BDC) as organic ligand, with transition metal Zn, Cd salt under acidic conditions to synthesize two fluorescent metal organic complexes: [Cd (CPY) _2] (7) and [Zn CPy] (8). Compounds 7 and 8 do not have photoluminescence. The color change is mainly due to the in situ hydrogenation reaction of pyridine ring. Five, the work of this thesis is summarized and the research prospect of this topic is forecasted.
【學位授予單位】：山西師范大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：O641.4

【參考文獻】

相關期刊論文 前1條

1 姚振國;;紫精類雜化光致變色材料的研究進展[J];廣東化工;2014年12期

，

本文編號：1969242