Up-Conversion in Bridged Binuclear Complexes of the Lanthanide Ions: An Investigation of Cross-Relaxation in a Molecular Beam Environment

镧系离子桥联双核配合物的上转换：分子束环境中交叉弛豫的研究

• 批准号: 9409244
• 负责人: Mary Berry
• 金额: $ 1.8万
• 依托单位: University of South Dakota Main Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-08-01 至 1997-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9409244&HistoricalAwards=false
• 关键词: Up; Conversion; Bridged; Binuclear; Complexes

In this proposal research planning grant Dr. Mary Berry will explore the dynamics of cross-relaxation up-conversion in bridged binuclear complexes of lanthanide ions isolated in a molecular beam. Several bridged complexes will be studied to determine whether up-conversion in condensed phases will actually occur and to investigate their suitability for volatilization. The apparatus used in these studies includes a molecular beam instrument with heated nozzle sources as well as equipment for performing ring-down spectroscopy and laser-induced fluorescence experiments. If successful, these experiments will provide a better understanding of cross relaxation up-conversion than is obtained from condensed phase studies. In this project fairly large molecular entities called binuclear complexes will be examined in an environment called a molecular beam. Under these conditions each complex is isolated from other molecules, and therefore the outcome of stimulating the complexes with light depends only on the nature of these complexes, and not on the species in their immediate surroundings. Interpretation of the processes involved in transferring energy gained from absorbing the light is simplified relative to examining those processes in condensed phases, since complications arising from interactions between the complexes and the host crystal, for example, are eliminated.

在这项研究计划中，玛丽贝瑞博士将探讨 桥联双核配合物交叉弛豫上转换动力学 镧系元素离子在分子束中被分离出来。 几座桥 复合物将被研究，以确定是否上转换在凝聚 阶段将实际发生，并调查其适用性， 挥发 在这些研究中使用的仪器包括一个分子 具有加热喷嘴源的射束仪器以及用于 进行衰荡光谱和激光诱导荧光 实验 如果成功，这些实验将提供一个更好的 交叉弛豫上转换的理解比从 凝聚相研究。 在这个项目中相当大的分子实体称为双核 复合物将在称为分子束的环境中进行检查。 在这些条件下，每个复合物与其他分子分离， 因此，用光刺激复合体的结果取决于 只对这些复合物的性质，而不是在他们的物种， 周围环境 对所涉过程的解释 通过吸收光而获得的能量的传递被简化 相对于在凝聚相中检查这些过程， 复杂的复杂性之间的相互作用的配合物和 例如，消除了主晶体。