三氟乙酸钕配合物激光材料的制备及表征

发布时间：2018-03-04 07:12

  本文选题：激光材料　切入点：晶体结构　出处：《陕西师范大学》2015年硕士论文　论文类型：学位论文

【摘要】：高速发展的激光技术对国民经济、国防建设、科学技术以及人们的日常生活产生着极为深远的影响,而激光材料是激光技术发展的核心和基础。由于传统的激光器在性能上存在诸多局限,如何研发出新型激光材料从而获得性能更加优异的激光器是科学家们长期以来关注的要点。稀土配合物液体激光材料不但有着稀土固体激光材料优异的光学性能,又有着液体激光材料自修复和流动热管理的优点,使其成为激光材料的一个重要的研究方向。本论文基于上述观点,进行了以下工作。第一章,对激光技术及其原理进行了简单介绍,综述了稀土配合物液体发光材料的发展背景,对评估材料光学性能的方法进行了一定的介绍,最后提出了本论文的研究内容和研究意义。第二章,设计并合成了六个以三氟乙酸为第一配体,吡啶基和苯酮基化合物为第二配体的三氟乙酸钕三元配合物发光材料。用红外光谱、X-射线单晶衍射、热分析和荧光光谱对产物分子结构特性、热稳定性和光学特性进行了表征。获得了Nd(CF3COO)3 和Nd(CF3COO)3-(Ph3PO)2的单晶结构,得到了配合物分子精确的键长、键角,配合物原子或离子的空间排列,化学键结合方式以及分子的主体构型等大量数据。研究表明合成出的配合物都具有较好的热稳定性,分解温度都高于200℃,最大失重温度都超过了260℃。对部分配合物进行了Z扫描实验,测试了材料的非线性光学性质.用Judd-Ofelt理论结合材料的紫外可见近红外吸收光谱计算了材料的激光特性,计算出了材料的三个强度参数Ω(t=2,4,6)对此类材料的研究应用提供了理论支持。第三章,对本文所有研究工作进行了总结。
[Abstract]:The rapid development of laser technology has a profound impact on the national economy, national defense construction, science and technology, and people's daily life. Laser materials are the core and foundation of laser technology development. How to develop a new type of laser material to obtain a laser with better performance has been the focus of scientists for a long time. The liquid laser materials of rare earth complexes not only have excellent optical properties of rare earth solid laser materials, It has the advantages of self-repair and flow heat management of liquid laser materials, which makes it an important research direction of laser materials. Based on the above point of view, the following work has been done in this paper. The laser technology and its principle are briefly introduced, the development background of liquid luminescent materials of rare earth complexes is reviewed, and the methods to evaluate the optical properties of the materials are introduced. In chapter 2, six ligands with trifluoroacetic acid as the first ligand were designed and synthesized. Luminescent materials of neodymium trifluoroacetate ternary complexes with pyridyl and phenylketoyl compounds as second ligands. X-ray single crystal diffraction, thermal analysis and fluorescence spectra were used to characterize the molecular structure of the products. The single crystal structures of Nd(CF3COO)3 and Nd(CF3COO)3-(Ph3PO)2 have been obtained, and the exact bond length, bond angle, space arrangement of atoms or ions of the complexes have been obtained. A large amount of data such as the binding mode of chemical bond and the main configuration of the molecule are obtained. The results show that the synthesized complexes have good thermal stability and decomposition temperature is higher than 200 鈩，

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