“Light Switch”
Effect Upon Binding of
Ru-dppz to Water-Soluble Conjugated Polyelectrolyte Dendrimers
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Abstract
We report the “light switch” effect of
[Ru(bpy)<sub>2</sub>(dppz)]<sup>2+</sup>
(where bpy = 2,2′-bipyridine and dppz = dipyrido[3,2-a:2′,3′-c]
phenazine, Ru-dppz)
in the presence of anionic conjugated polyelectrolyte dendrimers (CPDs).
The metal-to-ligand charge-transfer luminescence from Ru-dppz is efficient
in the presence of CPD because the complex is shielded from water
by binding to the hydrophobic dendrimer core
