Dong Luo,^⊥ Mian Li,^⊥ Xiao-Ping Zhou,* and Dan Li*

Abstract: A variety of planar organic fluorophores (R= phenyl, naphthalenyl, pyrenyl) and luminescence promotors(X=Cl, Br, I) were equipped, respectively, on the alternatively arranged vertices of cubic ZnII-imidazolate cages through orthogonal subcomponent self-assembly. It was found that supramolecular interactions, especially weak C@H···X interactions, play a key role in activating an efficient radiative pathway, coupled with reduced nonradiative
decay rate through metal coordination, therefore significantly boosting the emission quantum yields of the system. This finding provides a strategy that utilizes molecular geometry and supramolecular interactions to modulate the emission efficiency of luminescent cage-based materials.

Keywords: coordination cages · halogens · luminescence ·orthogonal self-assembly · supramolecular interactions

文章链接:chem.201800243.pdf