Bis(phenanthroline)-ethylenediamine conjugate displays excimer fluorescence upon binding with DNA†
Abstract
1,2-Bis(1,10-phenanthrolin-2-yl)ethylenediamine (1) displays a unique long-life time excimer fluorescence at 528 nm by binding with calf thymus DNA, while its monomer fluorescence at 400 nm shows a decrease upon binding with DNA.