报告题目：Uranium Peroxide Clusters: Syntheses, Structures, and Self-Assembly

报 告 人：邱杰（博士后 2009－至今 美国圣母大学Peter C Burns教授组 无机化学专业）

报告时间：2015年9月7日9：00（周一）

报告地点：学术活动中心302会议室

报告简介：

Abstract

Uranium peroxide nanoclusters are one unique subset of metal oxide clusters and have well-defined structures. They usually have a size of several nanometers and are much larger than the common small molecules and ions. Thus they may be used to separate uranium from uranium-bearing materials such uranium mineral and spent nuclear fuel in the form of nanoclusters. Due to such potential applications in the nuclear fuel cycles, uranium peroxide clusters have been intensively studied and about 80 clusters have been synthesized and characterized by our group over the past decade. In this presentation, I will report the formation mechanism of a uranyl cage cluster and how to control the size and topology of a cluster based on our experimental and computational studies. Then I will examine several typical uranyl cage clusters such as the only two uranium clusters with core-shell structures, the only two pairs of chiral uranium clusters, and the largest uranium cluster, and introduce their syntheses, crystallographic structures, stabilities, and self-assembly processes in the solution.