Time Resolved Solid State Structural Studies Across the Picosecond to Microsecond Time Domains

皮秒到微秒时域的时间分辨固态结构研究

• 批准号: EP/G067759/1
• 负责人: Paul Robert Raithby
• 金额: $ 17.96万
• 依托单位: University of Bath
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2009
• 资助国家: 英国
• 起止时间: 2009 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FG067759%2F1
• 关键词: Time; Resolved; Solid; State; Structural

With the advent of new synchrotron facilities coupled with the advances in laser technology it is possible, for the first time, to carry out new types of experiment and develop cutting edge methodologies for studying the structures of species that are key to many chemical reactions but which have lifetimes ranging from only a few nanoseconds to a few microseconds. An understanding of the structure of these short-lived species will help in the design of new smart materials with potential applications in the electronics and sensor industries. To help with this understanding, in this projects we plan to develop techniques for making molecular movies so that we can watch how molecules change as they interact with rays of light from lasers. Many of the new materials used in the electronics industry are solids and it has long been recognised that the best way to determine the full three-dimensional structure at the atomic level of a crystalline solid is to use X-ray diffraction. Until now this crystallographic technique has only allowed the structure of the material to be determined at the beginning or end of a reaction, and not during it. However, using the high energy X-rays generated by the new diamond synchrotron coupled with the use of pulsed lasers, the situation has changed, and during the course of this project it will be possible to bring the dimension of time into the crystallographic experiment and obtain the full three-dimensional structures of molecules as they become excited when they interact with laser light. This new methodology is called photocrystallography .IR spectroscopy is another technique that has been used extensively for obtaining information on the structures of reactive species that have very short lifetimes, but until now, almost all the IR studies have been carried out in solution rather than in the solid state where many materials of interest to the electronics industry display their most interesting properties. In this project, we will, for the first time, develop IR methods of obtaining structural information on species with nanosecond lifetimes in the solid state. Thus, by combining the photocrystallographic and time resolved IR techniques we will be able to establish the structures of species with lifetimes in the nanosecond to microsecond range in a way that has never been possible before and obtain a wide range of new scientific information that will be of importance to chemists, physicists and material scientists. We will also provide top quality training for the Ph D student on the project in a range of crystallographic, spectroscopic and synthetic techniques, so that he/she will be in a unique position to develop this new area of science in the future.

随着新的同步器设施的出现，加上激光技术的进步，首次有可能进行新型的实验，并开发尖端的方法，用于研究物种的结构，这些物种对于许多化学反应至关重要，但寿命范围仅有从几个纳米核桃到几微克少克。对这些短生物物种的结构的理解将有助于设计新的智能材料，并在电子和传感器行业中使用潜在的应用。为了帮助您了解这种理解，在这个项目中，我们计划开发制作分子电影的技术，以便我们可以观察分子与激光射线相互作用时如何变化。电子行业中使用的许多新材料都是固体，并且长期以来已经认识到，在晶体固体的原子水平上确定完整的三维结构的最佳方法是使用X射线衍射。到目前为止，这种晶体学技术仅允许在反应的开始或结束时而不是在其期间确定材料的结构。但是，使用新钻石同步器产生的高能量X射线，再加上使用脉冲激光器，情况发生了变化，在该项目过程中，有可能将时间维度带入晶体学实验，并在与激光照明时相互作用时，将其带入整个三维结构。这种新方法称为光结晶学。IR光谱是另一种技术，它已被广泛用于获取有关寿命很短的反应性物种结构的信息，但是到目前为止，几乎所有IR研究都在解决方案中进行，而不是在固体状态下，而不是在固体状态下，在这些状态下，对电子行业的许多兴趣材料都显示出最有趣的属性。在这个项目中，我们将首次开发IR方法，以获取有关固态纳秒生命的物种的结构信息。因此，通过将光晶体学和时间解析的IR技术相结合，我们将能够以纳秒至微秒范围内的生命建立物种的结构，并以前所未有的方式建立，并获得广泛的新科学信息，这些新科学信息对化学家，物理学家和物理学家和物理学家和物质科学家都非常重要。我们还将通过一系列晶体学，光谱和合成技术为该项目的PH D学生提供高质量的培训，以便他/她将在未来发展这一新的科学领域。

项目成果

Structural effects in lithiocuprate chemistry: the elucidation of reactive pentametallic complexes.

• DOI: 10.1002/chem.201304824
• 发表时间: 2014-04-01
• 期刊: CHEMISTRY-A EUROPEAN JOURNAL
• 影响因子: 4.3
• 作者: Harford, Philip J.;Peel, Andrew J.;Taylor, Joseph P.;Komagawa, Shinsuke;Raithby, Paul R.;Robinson, Thomas P.;Uchiyama, Masanobu;Wheatley, Andrew E. H.
• 通讯作者: Wheatley, Andrew E. H.