Synthesis of Luminescent Group 14 Compounds

发光第 14 族化合物的合成

• 批准号: 1362431
• 负责人: Janet Braddock-Wilking
• 金额: $ 24万
• 依托单位: University of Missouri-Saint Louis
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-09-01 至 2020-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1362431&HistoricalAwards=false
• 关键词: Synthesis; Luminescent; Group; 14; Compounds

In this project, funded by the Chemical Synthesis Program of the Chemistry Division, Professor Janet Braddock-Wilking of the University of Missouri-St. Louis is developing synthetic strategies for the preparation of fluorescent molecules containing silicon (Si) and germanium (Ge). These molecules have structural features that promote strong light emission in the solid state. Modification of the structure of these compounds allows for the development of air-stable molecules that emit blue, green, or red light for solid-state applications, for example, as components for screen displays (organic light emitting diodes) and solar cells.This project focuses on the synthetic pathways for the preparation of cyclic compounds containing silicon and germanium centers incorporated into five- and six-membered carbon-based ring structures of Si and Ge derivatives of metallaloles, dibenzometalloles, and fluorescein. The unique optoelectronic properties of the molecules are associated with their structures and are fine-tuned by incorporating a variety of conjugated peripheral groups attached to the ring structure. The new molecules are being characterized by multinuclear NMR and IR spectroscopies, mass spectrometry, UV-Vis and fluorescence spectroscopies, elemental analysis, cyclic voltammetry, and X-ray crystallography, when possible. Professor Braddock-Wilking continues to devote efforts to train and mentor female undergraduate and graduate students. In addition, she is currently the co-chair of the St. Louis ACS Section Women Chemists Committee. The broader impacts of this work include societal benefits resulting from the discovery of stable and efficient luminescent compounds for components in electroluminescent solid-state applications as well as the training of undergraduate and graduate students on the synthetic and characteristic techniques utilized in the preparation of the luminescent silicon- and germanium-containing cyclic compounds.

在这个由化学系化学合成项目资助的项目中，密苏里大学圣路易斯分校的Janet Braddock-Wilking教授正在开发制备含硅（Si）和锗（Ge）的荧光分子的合成策略。 这些分子具有促进固态下的强光发射的结构特征。 这些化合物的结构的改变允许开发发射蓝光、绿色或红光的空气稳定分子用于固态应用，例如，作为屏幕显示器的组件该项目的重点是制备含有硅和锗中心的环状化合物的合成途径，这些中心被并入五元和六元碳原子中，金属茂、二苯并金属茂和荧光素的Si和Ge衍生物的基于环的结构。 分子的独特光电性质与其结构相关，并通过结合连接到环结构的各种共轭外围基团进行微调。 新分子的特征在于多核核磁共振和红外光谱，质谱，紫外可见和荧光光谱，元素分析，循环伏安法，和X射线晶体学，如果可能的话。 Braddock-Wilking教授继续致力于培训和指导女本科生和研究生。 此外，她目前是圣路易斯ACS科女化学家委员会的联合主席。 这项工作的更广泛的影响，包括社会效益所产生的发现稳定和有效的发光化合物的组件在电致发光固态应用，以及培训本科生和研究生的合成和特征技术用于制备发光硅和锗的环状化合物。