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4月3日材料科学与工程系——The Design and Synthesis of Molecular Cages and Polymers



报告题目:The Design and Synthesis of Molecular Cages and Polymers

报告人:Prof. Anne Richards

时间:4月3日(周二) 下午2:0~3:30
地点:澳门太阳娱乐网站官网1号楼212
主持人孙强(教授)

报告人简介
    Dr. Richards received her PhD in chemistry in 2003 at Cardiff University in U.K. During 2004 to 2009, she worked as an Assistant Professor in Inorganic Chemistry at Texas Christian University in USA. She joined La Trobe University, Australia in 2009 as a Senior Lecturer in Inorganic Chemistry. Her research interests include design and synthesis of nano structures and cage polymer.

报告内容摘要
    The powerful chelating ability of organo-phosphonates as support molecules for cages and polymers will be presented. The phosphonate ligand class provides a useful platform for the rational design of coordination polymers and molecular cages.1 Tetrahedral phosphonate groups allows for polymer/cage growth in multiple directions, while their charge/degree of protonation can be controlled by pH. Increasing the flexibility of the organic group and incorporating nitrogen donor functions can result in a rich variety of products from these ligands. Examples of main group and transition metal polymers and cages will be discussed where the coordination preferences of the ligand and metal, and choice of anion and solvent, govern the reaction outcome, thereby affording cages of various sizes and 1 or 2D polymers. In addition, the versatile nature of a simple, tetradentate Schiff base ligand, NN’-ethylene-bis(4-iminopentan-2-one),2 for cage/polymer construction, and as a metallo-ligand building block will be presented. Our studies in this area add to the depth and breadth of data pertaining to the factors that affect polymer motifs, as we continue to examine these patterns to reach the goal of intelligent design of polymers with desired structural and functional properties. These aesthetically unique structures have potential applications in catalysis and gas storage.