Dynamics and Interactions in Ionic Liquids

化学系的实验物理化学项目支持新泽西州立大学罗格斯大学化学和化学生物学系爱德华·卡斯特纳教授的研究。卡斯特纳和他的研究小组将研究新型离子液体的物理和化学性质。时间分辨光学光谱和核磁共振光谱将被用来研究离子液体中的动力学、相互作用和输运随温度的变化。这项研究将包括详细评估烷基侧链上的硅取代对这些材料性能的影响，以及离子液体中分子间相互作用与等电子、中性同系物的比较。具有不同水浓度的离子液体的核磁共振扩散研究将被用来模拟与燃料电池中的离子液体相关的传输。这项工作的总体目标是对精心挑选的离子液体和模型体系进行足够详细的研究，以更好地对其性质进行先验预测。这项研究应该能更好地了解离子液体的液体性质，特别是它们的粘度和导电性。离子液体是一类重要的新型化学溶剂，由熔融盐类组成，具有许多特殊性质。这些液体独特的电学特性应该会导致它们在改进的电池、燃料电池和太阳能光电池中使用。卡斯特纳团队将与各种各样的研究人员合作，包括布鲁克海文国家实验室、威廉·帕特森大学和纽约城市大学(亨特学院和布鲁克林学院)的学生、博士后研究员、教职员工和科研人员。该项目将对本科生、研究生和博士后研究人员进行实验和理论物理化学方面的现代技术培训。

The Experimental Physical Chemistry program of the Division of Chemistry supports the research of Professor Edward Castner of the Department of Chemistry and Chemical Biology at Rutgers, The State University of New Jersey. Castner and his research group will study the physical and chemical properties of new classes of ionic liquids. Time-resolved optical spectroscopy and nuclear magnetic resonance spectroscopy will be used to study the dynamics, interactions, and transport in ionic liquids as a function of temperature. The research will include the detailed evaluation of the impact of silicon substitutions in alkyl side chains on the properties of these materials and the comparison of intermolecular interactions in ionic liquids with those of isoelectronic, neutral homologs. NMR diffusion studies of ionic liquids with varying concentrations of water will be used to model transport relevant to ionic liquids in fuel cells. The overall goal of the work is to study carefully selected ionic liquids and model systems in sufficient detail to lead to better a priori predictions of their properties. The research should provide a better understanding of the liquid properties of ionic liquids, especially their viscosities and conductivities. Ionic liquids are an important new class of chemical solvents comprised of molten salts that have many special properties. The unique electrical characteristics of these liquids should lead to their use in improved batteries, fuel cells and solar photocells. The Castner group will collaborate with a diverse range of researchers, including students, postdoctoral fellows, faculty, and scientific staff at Brookhaven National Laboratory, William Paterson University, and the City University of New York (Hunter College and Brooklyn College). The project will train undergraduates, graduate students, and post-doctoral researchers in modern techniques in experimental and theoretical physical chemistry.