题目: Self-assembly of multi-nuclear metallo-supramolecular barrels, cages and cubes: subtle changes produce significant consequences 报告人：Dr. Jack Kay Clegg School of Chemistry and Molecular Biosciences, The University of Queensland, Australia 地点：化学楼三楼报告厅 时间： 2013年9月9日（星期一）上午10:00 联系人：王乐勇教授(lywang@nju.edu.cn), 025-83592529 Abstract ：The self-assembly of multi-nuclear metallosupramolecualr architectures has received significant recent attention due to potential applications in host-guest chemistry and catalysis. The programmed formation of these beautiful and complex systems generally results from the combination of the inherent geometric, electronic and steric information present in each of the metallic and organic components. By designing new ligands that incorporate dynamic (reversible) covalent bonds it is possible to design systems that have new geometries and functions with often unexpected results. In this way we have been able to prepare a variety of new architectures including M10L15 barrels, M8L12 cubes and a wide variety of M4L6 tetrahedra along that exhibit very strong and selective anion binding. In addition, we have been able to show that a system of these cage molecules is capable of adapting to a range of external stimuli by changing cavity volumes and diasteromeric composition to produce! A mixture of molecules with the ideal cavity for binding the guest molecule presented to it. 欢迎参加！ 有机化学学科 |