A Versatile and Conformationally Adaptable Fluorene-Based Receptor for Efficient Binding of Silver Cation

摘要

Intermolecular noncovalent binding of silver cation by synthetic macromolecular receptors continues to attract considerable attention.Importantly,the focus has been to design molecular systems that bear two or more aromatic groups in cofacially oriented arrays (such as cis-diarylalkenes,cyclophanes,triptycenes,deltaphanes,cylinderophanes,etc.) as electron donors for the preparation of metal ion aromatic donor-acceptor complexes for the potential applications in the areas of electrical conductors and photorespon-sive devices.Despite numerous ingenious designs of novel receptors,including the ones containing fluorescent sensing units,need remains for a readily available and versatile receptor that can bind silver cation effectively and should allow its eventual incorporation into a polymeric backbone for practical applications in the emerging area of molecular electronic and nanotechnology.