新型电光功能配合物的结构设计和性能研究

Organic electroluminescence is a kind of newly updated technology applied to the dispay equipment following the cathode ray, liquid crystal as well as plasma display penal. It carries with such attractive features like higher luminance, less power-hungry, longer life and application of larger screen with a slim body. Therefore, to develop the organic electroluminescence is an advanced trend as to cultivate a new generation of lumination and display technology. However, luminosity as a crucial point should be concentrated while design of molecular structure for lighting materials and its performance study could determine the way the research might goes. Previous studies have acknowledged that organic metal chelate dye is a kind of promising luminant material, but the studies hitherto are mostly orienting on its representation of luminance without a specific research on how metal ions could regulate the luminant ability of such organic molecules. Moreover, the study on the mechanism of electroluminescence regulation are rare to follow, thus this thesis devotes to a more explict research by designing molecule structure to form a kind of organic luminant material with a center of multi-metal (the same kind or a totally different kinds of metals) to regulate. In this paper, the author, on one hand, concerns its characteristics in composition, structure, photic, electoral as well as thermal; on the other hand, explores the following factors like electoral structure of metal ion, valence state, bridge league structure of ligands, conjugation effect, substituent group as well as spatial structure of coordination complex and mutual influence among molecules which could make a difference to the material's illuminant capacity. There is one point needed to be recognized that this research lies in the purpose of selecting an illuminant coordination complex with both high efficiency and high luminance. Thus by studying in detail of its electroluminescence, expanding life and heat resistence to design and synthesise a kind of new illumant material that could be applied in reality.

有机电致发光是继阴极射线、液晶、等离子等显示器件后的新一代显示技术，.具有发光亮度高、耗电少、寿命长、可实现大屏幕超薄显示等优点，是新一代照明和显示技.术最新的发展方向，而发光体是该技术的核心，材料分子结构的设计及性能研究是该技术的.关键所在。金属有机配合物是很有前途的发光材料，目前主要集中于对其发光性质的测试，.缺乏配合物的结构对发光性能影响的研究，同时对发光调控的研究很少，故本课题采用分子结构设计，构筑多金属(同金属及异金属)中心调控的有机发光材料，研究其组成、结构、光、电、热等性质，探索金属离子的电子结构、价态，配体的结构、共扼效应、取代基效应，配合物的空间结构、分子间的堆积方式及相互作用等因素对发光性能的影响。设计具有高效率、高亮度的发光配合物，深入研究其电致发光性能、发光寿命、耐热性等。最终设计合成具有实际应用价值的新型发光材料。

发光功能材料近年受到广泛的关注，并逐渐应用到各个新兴的高科技领域，具有发光功能的多核簇基配位化合物在新型发光材料领域具有潜在应用前景。.在本项目研究期间共设计合成了约40种不同结构类型的新型桥联配体（吡啶/吡嗪多羧酸衍生物，2-甲酰基-8-羟基喹啉的希夫碱衍生物和5氨基-8-羟基喹啉的希夫碱衍生物）,并进行了分析表征，验证其为预期产物，同时证实合成方法可行，具有普遍适用性。.设计合成了150多种未见文献报道的新配合物，对其进行了晶体结构测定和表征。对配合物的结构和性质进行了深入详细的研究。.研究了配合物的发光性质，同时研究了部分配合物近红外发光性能。测试配合物发光性能，研究其热稳定性，提高其耐热温度，有些配合物的热稳定性达到350摄氏度。当通过加热方式去除Tb配合物框架结构中的水分子后，伴随着配合物结构的改变，形成非常稳定的结构，固体荧光强度大大增强。当失水样品再次浸水后，水分子不可恢复，荧光强度也不减弱。.研究探讨配体的结构，金属离子的种类、价态、电子结构及配合物的空间结构等对发光性质的影响。并且，通过研究配合物的磁学性质，进一步深入研究多核配合物中金属离子的电子的相互作用，探讨其相互作用对发光性质的影响等。.将研究成果写成论文，并且全部发表在SCI检索的学术期刊上。共计发表论文37篇，其中影响因子大于4的高水平论文有16篇。培养青年教师1名；毕业研究生：博士6名、硕士10名。参加国际学术会议2人次，参加国内学术会议12次；邀请4名外国专家来科研组进行学术交流。.