Ultrafast dynamics, mechanism, and linkage isomerization of photosensitive organometallic manganese and chromium complexes

这项研究奖在无机，生物无机和有机化学计划支持教授西奥多伯基和查尔斯埃德温韦伯斯特在孟菲斯大学的工作，以开发基于迁移的光致变色化合物的功能基团之间的过渡金属。 具有位于相对于金属的关键位置处的官能团的有机金属化合物的合成提供了一种手段来研究金属如何在官能团之间迁移作为颜色变化的机制。 新的有机金属光致变色复合物的研究揭示了结构变化如何1）提高每光子的产率，2）增加由金属迁移引起的颜色变化的速率，以及3）减少副反应，例如干扰金属迁移的重组或溶剂化。 结构变化包括官能团、金属与官能团之间的桥、官能团之间的桥。 该项目培养学生和博士后研究员重要的学术，政府和工业机构的基础设施，在合作实验和计算研究。 该项目增加了在我们的少数民族本科生指导和沉浸在研究，美国化学学会项目种子（夏季研究实习计划经济困难的高中生），和黑人化学家和化学工程师在孟菲斯大学的国家组织在化学代表性不足的群体的参与。 在光致变色材料的实际应用中，需要更快、更稳定和更有效的光致变色有机金属化合物，这些光致变色材料已经在数据存储、光开关、微流体器件、光激励器和智能窗中建立或潜在地使用。

This Research award in the Inorganic, Bioinorganic and Organometallic Chemistry program supports work by Professors Theodore Burkey and Charles Edwin Webster at the University of Memphis to develop photochromic compounds based on the a migration a transition metal between functional groups. The synthesis of organometallic compounds with functional groups located at key positions relative to the metal provides a means to investigate how a metal can migrate between the functional groups as a mechanism for color change. Studies of new organometallic photochromic complexes reveal how structural changes 1) improve the yield per photon, 2) increase rates of the color change caused by the metal migration, and 3) reduce side reactions such as recombination or solvation that interfere with the metal migration. The structural changes include functional groups, the bridge between the metal and functional group, and the bridge between functional groups. This project trains students and postdoctoral fellows important to the infrastructure of academic, government, and industrial institutions in collaborative experimental and computational research. This project increases the participation of underrepresented groups in chemistry in our Minority Undergraduate Mentoring and Immersion in Research, American Chemical Society Project SEED (Summer Research Internship Program for Economically Disadvantaged High School Students), and National Organization of Black Chemists and Chemical Engineers at the University of Memphis. Faster, more stable, and more efficient photochromic organometallics are required in practical applications of photochromic materials, which have established or potential use in data storage, optical switches, microfluidic devices, photoacuators, and smart windows.