Preparation of a Polymer-Supported Fluorene-Based Receptor for Quantitative and Efficient Binding of Silver Cations
作者:Vincent J. Chebny、Moloy Banerjee、Rajendra Rathore
DOI:10.1002/chem.200601776
日期:2007.7.27
receptor is woven onto the backbone of polystyrene. This polymer-supported receptor adopts a pi-prismand-like conformation through a simple C--C bond rotation that results in the quantitative binding of a single silver cation per receptor site with a remarkable efficiency that exceeds the binding abilities of the well-known tris[2.2.2]-p-cyclophane (or pi prismand) by at least a factor of 100. More importantly
我们已经设计并合成了一种聚合物支撑的材料,其中一种多用途的芴-对二甲苯基受体被编织到聚苯乙烯的骨架上。这种由聚合物支撑的受体通过简单的C-C键旋转采用pi-prismand样构象,从而导致每个受体位点单个银阳离子的定量结合,其显着效率超过了众所周知的结合能力tris [2.2.2] -p-cyclophane(或pi pyramidand)的至少100倍。更重要的是,结合事件可以通过1H NMR光谱以及更灵敏的发射光谱技术轻松监控受体部分的荧光猝灭在数量上与银阳离子的结合有关。