Uncovering the Chemistry of ansa-Chromocene and ansa-Vanadocene Complexes/Innovations to Teaching Inorganic Chemistry

揭示 ansa-二茂铬和 ansa-Vanadocene 络合物的化学/无机化学教学的创新

• 批准号: 9502739
• 负责人: Pamela Shapiro
• 金额: $ 18.3万
• 依托单位: Regents of the University of Idaho
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-06-01 至 1999-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9502739&HistoricalAwards=false
• 关键词: Uncovering; Chemistry; ansa; Chromocene; Vanadocene

Dr. Pamela Shapiro, Chemistry Department, University of Idaho, is supported by the Inorganic, Bioinorganic, and Organometallic Chemistry Program of the Chemistry Division under a Faculty Early Career Advancement Award to develop the chemistry of bent-sandwich ansa-chromocene and vanadocene complexes in order to uncover novel reaction chemistry, discover new homogeneous catalysts, and further the understanding of the dependence of electronic structure and reactivity on metallocene geometry. Heteroannular bridges will permit a bent ring configuration to be tailored in the bis-cyclopentadiene vanadium and chromium complexes and this will allow an open site to be generated in the equatorial plane of the complexes. The chemistry of these species will be explored and the properties of the compounds will be tuned by adjusting the bridging groups which join the two rings. Also part of this project will be a restructuring of an inorganic chemistry teaching laboratory to emphasize the use of modern techniques and the introduction of computer generated teaching aids to several undergraduate lecture courses. Catalysts are used to improve the rate or efficiency of a chemical reaction. Thus, the search for new, more effective catalysts is an important area of contemporary chemistry. In the research portion of this project a series of vanadium and chromium compounds, which are surrounded by non reactive groups in such a way as to leave a wedged shaped cavity into which small reactants can easily fit, will be prepared. By tailoring the size of this wedge, the ability of the compounds to effect transformations of the molecules with which they interact can be tailored to maximize the catalytic properties of the metals. The educational portion will modernize and improve the chemistry curriculum at the University of Idaho.

爱达荷州大学化学系的帕梅拉·夏皮罗博士是 由无机，生物无机和有机化学 学院早期职业生涯下的化学部门计划 开发三明治化学的进步奖 柄型-二茂铬和二茂钒配合物， 反应化学，发现新的均相催化剂，并进一步 理解电子结构和反应性对 茂金属几何形状。杂环桥将允许弯曲的环 在双-环戊二烯钒中定制的构型， 铬络合物，这将允许在 复合物的赤道平面。这些物种的化学成分 将被探索，化合物的性质将被调整， 调节连接两个环的桥连基团。这也是 项目将是无机化学教学的重组 实验室强调使用现代技术和引进 计算机生成的教学辅助工具， 课程 催化剂用于提高化学反应的速率或效率 反应因此，寻找新的、更有效的催化剂是一个挑战。 当代化学的重要领域。在研究部分， 投射出一系列钒和铬的化合物， 通过非反应性基团以留下楔形空腔的方式 小的反应物可以很容易地放入其中。通过定制 这个楔形的大小，化合物的作用能力 与它们相互作用的分子的转变可以被定制， 以使金属的催化性能最大化。教育 部分将现代化和改善化学课程在 爱达荷州大学。