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

化学国际合作：氢键液体的结构和动力学

• 批准号: 1026124
• 负责人: Ranko Richert
• 金额: $ 38.1万
• 依托单位: Arizona State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-15 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1026124&HistoricalAwards=false
• 关键词: International; Collaboration; Chemistry; Structure; Dynamics

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.

在这项由化学结构、动力学和机制项目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在氢键液体的动力学和结构中的作用。萨克雷的l<s:1>布里卢因实验室和法国奥赛的奇米-体格实验室的克里斯蒂安·阿尔巴-西蒙斯科教授组成的合作小组将利用x射线和中子散射技术来确定相同的氢键液体的结构。Saclay/Orsay小组得到了法国国家研究机构（ANR）的支持。与其他液体相比，氢键系统在较长的距离上产生分子相互作用和结构，这使介电、量热和散射数据的解释复杂化。本研究的目的是提供氢键液体的统一图像，可以解释在大范围的时间尺度上的动力学行为。为了研究氢键在这些液体中产生超分子结构中的作用，研究项目还包括纳米约束下氢键液体的结构和动力学研究。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。氢键液体，如水和醇，是所有生物系统的重要组成部分，在药品、食品、冷冻保护剂、微波化学和许多其他技术上重要的材料和工艺中都是必不可少的。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，因为它涵盖了实验物理化学，计算化学和材料科学。美国学生还将受益于国际经验，因为他们将在法国合作伙伴集团的实验室中度过时间。这项研究还将在亚利桑那州立大学校园开展针对K-12学生的推广活动，包括由亚利桑那州立大学固态科学中心建立的“科学是有趣的”项目。