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.

随着新的同步加速器设备的出现，再加上激光技术的进步，首次有可能进行新型实验，并开发尖端的方法来研究物质的结构，这些物质是许多化学反应的关键，但它们的寿命只有几纳秒到几微秒。了解这些短寿命物种的结构将有助于设计具有潜在应用于电子和传感器行业的新型智能材料。为了帮助理解这一点，在这个项目中，我们计划开发制作分子电影的技术，这样我们就可以观察分子在与激光射线相互作用时是如何变化的。电子工业中使用的许多新材料都是固体，人们早就认识到，在原子水平上确定晶体固体的完整三维结构的最佳方法是使用x射线衍射。到目前为止，这种晶体学技术只能在反应开始或结束时确定材料的结构，而不能在反应过程中确定。然而，利用新型金刚石同步加速器产生的高能x射线加上脉冲激光的使用，情况发生了变化，在本项目的过程中，将有可能将时间的维度引入晶体学实验，并获得分子在与激光相互作用时被激发的完整三维结构。这种新方法被称为光晶体学。红外光谱是另一种广泛用于获取具有非常短寿命的活性物质结构信息的技术，但到目前为止，几乎所有的红外研究都是在溶液中进行的，而不是在固态中进行的，在固态中，许多电子工业感兴趣的材料显示出它们最有趣的性质。在这个项目中，我们将首次开发红外方法来获取具有纳秒寿命的固体物质的结构信息。因此，通过结合光晶体学和时间分辨红外技术，我们将能够以一种前所未有的方式建立在纳秒到微秒范围内寿命的物种结构，并获得对化学家、物理学家和材料科学家具有重要意义的广泛的新科学信息。我们还将为博士生提供高质量的培训，包括晶体学、光谱学和合成技术，使他/她在未来发展这一新的科学领域时处于独特的地位。

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.