STRUCTURAL INVESTIGATIONS OF ALKALI, ALKALINE EARTH AND RARE EARTH MATERIALS

这个子项目是许多研究子项目中利用 资源由NIH/NCRR资助的中心拨款提供。子项目和 调查员(PI)可能从NIH的另一个来源获得了主要资金， 并因此可以在其他清晰的条目中表示。列出的机构是 该中心不一定是调查人员的机构。 本课题组的研究兴趣在于涉及重碱、碱土和稀土金属的有机金属化合物的合成和表征。这些化合物在合成应用中是重要的选择性碱，聚合引发剂，在某些情况下是固体材料的前体分子。这项工作得到了美国国家科学基金会的支持。目标化合物非常活泼，需要在严格的惰性气体条件下处理。通常情况下，得到的晶体很小，衍射性很弱。它们的高反应性不允许广泛的再结晶尝试。在许多情况下，我们使用我们的密封管CCD衍射仪收集90K的数据，但在相当多的情况下，所获得的晶体太小，不能提供足够质量的数据。我们希望使用CHESS提供的高强度辐射将提供迫切需要的结构信息，以便进行有意义的结构功能分析。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. My group`s research interest lies in the synthesis and characterization of organometallic compounds involving the heavy alkali, alkaline earth and rare earth metals. These compounds are important as selective bases in synthetic application, as polymerization initiators, and, in select cases as precursor molecules for solid-state materials. This work is supported by the NSF. The target compounds are very reactive and need to be handled under strict inert gas conditions. Often, the crystals obtained are small and weakly diffracting. Their high reactivity does not allow extensive attempts of recrystallization. In many cases we collect data at 90K using our sealed tube CCD diffractometer, but in significant number of cases, the crystals obtained are too small to provide data of sufficient quality. We hope that using high intensity radiation, as provided at CHESS will provide the urgently needed structural information to allow for a meaningful structure function analysis