报告题目：Self-Assembly of Giant Supramolecules withIncreasing Complexity

报告人：李霄鹏（University of South Florida）  

报告时间：2017年5月17日（星期三）下午 15:00

报告地点：材料与化学化工学部907幢1445室

报告摘要：

Due to the highly directional and predictable feature of the metal coordination, metalmediated self-assembly acts as a powerful tool to mimic nature's activities and to construct various 2D and 3D metallo-supramolecules. Up to date, metallosupramolecules have matured in the context of a large variety of macrocycles and polyhedrons assembled by ditopic ligands. However, unpredicted assemblies often appear because organic ligands are much more flexible than expected and metal centers can allow considerable deviation in their coordination geometry. Instead of solely relying on the angle of ligand and geometry of coordination in the conventional design, we used multitopic ligands to increase the density of coordination sites (DOCS) of assemblies, and thus to assemble a series of giant 2D and 3D supramolecules with increasing structural complexity and stability. Furthermore, if the first level assembly is viewed as the spontaneous formation of metal-ligand bonds to generate discrete cores, hierarchical selfassembly driven by multiple intermolecular interactions was able to deliver complex materials with unique properties by taking advantage of their precisely controlled shapes and sizes. All together, through further understanding of the design and self-assembly of supramolecular structures, our research is poised to advance the design, research and development of new synthetic materials with molecular level precision and high physical performance.

个人简介：

Education and Training:

Postdoctoral Fellow, Department of Chemistry, University of Akron, OH, 2009-2012 Advisor: Professor Chrys Wesdemiotis.

Ph.D., Department of Chemistry, Cleveland State University, OH, 2004-2008 Advisor: Professor Baochuan Guo.

B.S., Department of Chemistry, Zhengzhou University, China

Appointments:

2016-present Assistant Professor, Department of Chemistry, University of South Florida, FL.

2012-2016 Assistant Professor, Department of Chemistry and Biochemistry & Materials Science, Engineering, and Commercialization Program, Texas State University, TX

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