Bipyricorrole: A Corrole Homologue with a Monoanionic Core as a Fluorescence Zn-II Sensor

摘要

In the corrole homologue, 6,11,16-triarylbipyricorrole, the bipyrrole unit is replaced by a 2,2-bipyridine unit. This modification effectively alters the corrole N4 coordination sphere from the trianionic [(NH)(3)N] to the monoanionic [N3NH] state. The newly formed monoanionic core stabilizes Zn-II ions with enhanced emission properties. The enhanced emission was further utilized for metal ion sensing studies and exploited for the selective detection of Zn-II ions.