Electrochemical, Spectroelectrochemical, and Photoluminescence Studies of Transition Metal Halide Clusters in Room Temperature Haloaluminate Ionic Liquids

这个项目属于分析化学和表面化学的一般领域，属于非水电化学的子领域。这项实验活动的主要重点是电合成和表征过渡金属卤化物团簇在室温卤铝酸盐熔体。利用电化学、光谱电化学和电致发光技术，Hussey教授将研究不同氧化状态下铼、钼、钨、铌和钽的溴和氯络合物团簇的氧化还原和光谱特性，并探索这些物质稳定的熔体酸度范围。这些过渡金属团簇配合物的物理化学行为的基本知识对于理解这些具有重要催化作用的实体的结构、键和反应动力学是必不可少的。这些导致新知识的研究在很大程度上是由这位研究者在他之前的NSF资助（CHE- 8412730）任期内为处理这些极具挑战性的系统开发复杂的实验协议所取得的进展所推动的。熔盐化学新实验方法的不断发展也是本研究的一个额外好处。

This project is in the general area of analytical and surface chemistry and in the subfield of nonaqueous electrochemistry. The primary thrust of this experimental activity focuses on the electrosynthesis and characterization of transition metal halide clusters in room temperature haloaluminate melts. Using electrochemical, spectroelectrochemical, and electroluminescent techniques, Professor Hussey will study the redox and spectral properties of bromo- and chloro- complex clusters of rhenium, molybdenum, tungsten, niobium, and tantalum in various oxidation states and he will also explore the range of melt acidities over which these species are stable. Such fundamental knowledge of the physicochemical behavior of these transition metal cluster complexes is essential to an understanding of the structure, bonding, and reaction kinetics of these catalytically important entities. These studies leading to this new knowledge have been enabled in large measure by the advances that this investigator has made during the tenure of his previous NSF grant, CHE- 8412730, in developing sophisticated experimental protocols for handling these extremely challenging systems. The continued development of new experimental methods in molten salt chemistry is an added benefit that is also anticipated from this research.