Modulated Structures, Dynamic Jahn-Teller Processes, and Phase Transitions in Organoammonium Metal Halide Salts

该奖项是在无机，生物无机和 支持罗杰博士研究的器官移植计划 威利特该研究将解决结构，电子 光谱、磁化学和EPR性质， 二聚和高阶Cu（II）、Mn（II）和Ni（II）-卤化物 配合物一个重点将是研究的变化， 配合物的几何结构和电子结构 温度，无论是通过相变或动态 Jahn-Teller相互作用原理实验技术 将使用X射线衍射法、EPR和NMR。 %%% 这项研究涉及某些基本的研究 有机/无机混合晶体的性质和工艺 材料.研究将集中在发生在 这些系统随着温度的变化而变化。 包括的是 在晶体中表现出连续特性的材料 相，并模仿脂质的物理性质， 其他现象。

This award is made in the Inorganic, Bioinorganic and Organometallic Program in support of the research of Dr. Roger Willett. The research will address the structural, electronic spectroscopic, magnetochemical and EPR properties of monomeric, dimeric and higher-order Cu(II), Mn(II) and Ni(II)-halide complexes. An emphasis will be a study of the variation of the geometric and electronic structure of the complexes with temperature, either by phase transitions or by dynamic Jahn-Teller interactions. The principle experimental techniques utilized will be X-ray diffraction methods, EPR and NMR. %%% This research involves the study of certain fundamental properties and processes in mixed organic/inorganic crystalline materials. Studies will focus on the changes that occur in these systems as the temperature is varied. Included are materials that exhibit continuum properties in the crystalline phase and that mimic the physical properties of lipids and other phenomena.