International Collaboration in Chemistry: Structure and Dynamics of Hydrogen Bonded Liquids

在这项由化学结构、动力学和机制计划和国际科学与工程办公室资助的国际化学合作(ICC)项目中，亚利桑那州立大学的Ranko Richert教授和他的研究小组将利用介电松弛和发光探针技术探索氢键对氢键液体动力学和结构的作用。法国奥赛的布里渊布里渊和法国奥赛的奇米物理实验室的克里斯蒂娜·阿尔巴-西蒙斯科教授将利用X射线和中子散射技术来确定相同氢键液体的结构。Saclay/Orsay集团得到了澳大利亚国家退休人员协会(ANR)的支持。与其他液体相比，氢键体系在更远的距离上产生分子相互作用和结构，这使得介电、量热和散射数据的解释变得复杂。这项研究的目的是提供一张氢键液体的统一图片，可以解释广泛时间范围内的动力学行为。为了研究氢键在这类液体中形成超分子结构的作用，该研究计划还包括在纳米限制下研究氢键液体的结构和动力学。美国和法国研究小组的实验工作将得到分子动力学模拟的补充。水和酒精等氢键液体是所有生物系统的重要组成部分，在制药、食品、低温保护剂、微波化学和许多其他重要技术材料和工艺中必不可少。该研究活动将为学生参与者的教育和培训提供丰富的环境，因为它包括实验物理化学、计算化学和材料科学。美国学生也将从国际经验中受益，因为他们将在法国合作伙伴小组的实验室度过一段时间。这项研究还将在亚利桑那州立大学校园内产生针对K-12受众的外联活动，包括在亚利桑那州立大学固态科学中心建立的“科学是乐趣”项目中。

In this International Collaboration in Chemistry (ICC) project supported by a grant from the Chemical Structure, Dynamics and Mechanisms Program and the Office of International Science and Engineering, Professor Ranko Richert and his research group at Arizona State University will explore the role of the hydrogen bonds on the dynamics and structure of hydrogen-bonded liquids using dielectric relaxation and luminescent probe techniques. The collaborating group of Professor Christiane Alba-Simionesco of the Laboratoire Léon Brillouin in Saclay and Laboratoire de Chimie-Physique in Orsay, France will utilize x-ray and neutron scattering techniques to determine the structure of the same hydrogen-bonded liquids. The Saclay/Orsay group is supported by the Agence Nationale de la Recherce (ANR). Compared to other liquids, hydrogen-bonded systems engender molecular interactions and structures over extended distances, which complicate the interpretation of dielectric, calorimetric, and scattering data. The goal of this research is to provide a unified picture of hydrogen-bonded liquids which can account for dynamical behavior over a wide range of time scales. In order to study the role of hydrogen bonds in creating supramolecular structures in such liquids, the research program also includes the investigation of structure and dynamics of hydrogen-bonded liquids under nanoscopic confinement. The experimental work of both the US and French groups will be complemented by molecular dynamics simulations.Hydrogen-bonded liquids such as water and alcohols are literally vital components of all biological systems, and essential in pharmaceuticals, food products, cryo-protection agents, microwave chemistry, and many other technologically important materials and processes. The research activity will provide a rich environment for the education and training of its student participants, as it encompasses experimental physical chemistry, computational chemistry, and materials science. The US students will also benefit from the international experience as they spend time in the laboratories of the French partner group. The research will also spawn outreach activities at the Arizona State Campus directed at K-12 audiences, including within the "Science is Fun" project established by the ASU Center for Solid State Science.