论文部分内容阅读
@@ Crown ethers and coronads are alicyclic polyethers made up of ethylene glycol units that are capable of selective interac-tions. The initial research of Pederson which planted the seeds of supramolecular or host-guest chemistry was further advanced by the work of Cram and Lehn together with Peder-son. Since the reports of Simon and V5gtle, open chain crown ethers have attracted much attention, the ones with terminal quinolyl groups have been studied extensively because of their special coordination capability with the transition metal and rare earth metal cations. Recently, zinc complexes with bis(8-hydroxyquinoline)