酒石酸衍生物多元稀土配位聚合物的可调发光及白光

分子发光材料在显示，照明和医疗等方面具有潜在、重要的应用，受到全球科学家的广泛关注。由于稀土离子电子结构的特点，稀土配合物具有独特的发光性能，因此稀土配合物作为分子发光材料吸引了广大科技工作者开展了大量的研究工作。.但是稀土配合物发光研究主要集中在稀土离子的单色发光，稀土配合物可调颜色发光乃至白光的研究报道极少，所知有限。鉴于分子可调颜色发光和白光材料在分子发光材料方面潜在、重要的应用价值。本项目拟合成含有多元稀土离子于一个配合物的羧酸多元稀土配位聚合物，通过不同稀土离子和配体发光基色的不同，实现同一配合物发不同于单一稀土或配体的发光颜色，以实现羧酸多元稀土配位聚合物的可调发光乃至发白光。.该项研究如能实现预期目标，将获得关于羧酸单元和多元稀土配合物的合成、结构、发光以及分子结构与发光间构效关系的系列成果，实现羧酸稀土配位聚合物的可调发光乃至白光。

Considerable interest exists for color-tunable materials, which can be used to define or modify environments, moods, and brands. Traditional methods of such white light generation typically rely on mixing various primary colors from different emitting materials. An alternative approach for the generation of efficient (white) light sources is to use a single-component emitter, which can have advantages such as greater stability, better reproducibility, no phase separation, and simpler fabrication processes. .Although a few materials show white-light emission as a single-emitting component, none has been reported to produce well-separated blue, green, and red emissions beside white light. Since energy transfer typically quenches one or more of the emission pathways and thereby restricts the transitions that define the output spectrum, the design of color tunable single-component emitters requires readily tailorable different single colue and fine-tuning of the energy-transfer processes between the different components. .On the other hand, lanthanide-containing materials, which exhibit excellent sharp-emission luminescence properties with suitable sensitization, have attracted considerable interest and been effectively used in designing white-emitting materials. However, several different lanthanide ions are incoperating into one complex emitting tunable colour or white light are unknown. .In this proposal, a series of tartaric acid derivative multi-nuclear lanthanide coordination polymers are going to be designed and synthesized for color-tunable emitting on the basis of hardly known single lanthanide coordination polymer. .If this proposal is realized, a series of artaric acid derivative multi-nuclear lanthanide coordination polymers that emitting tunable color or white light would be developed. The correlation between the structure and tunable color or white light will be revealed. These results will further develop and enrich the structural and photochemistry of carboxylic lanthanide complexes.