Enhanced Circularly Polarized Luminescence by a Homochiral Guest-Host Interaction in Gyroidal MOFs, [Ru(bpy)] [M(ox)] (bpy = 2,2'-Bipyridyl, ox = Oxalate, M = Zn, Mn).

We report the circularly polarized luminescence (CPL) for [Ru(bpy)]I () and [Ru(bpy)][M(ox)] (M = Zn (), Mn ()). Whereas compound is a simple salt of [Ru(bpy)], and are MOFs in which the chiral [Ru(bpy)] ions are encapsulated in a homochiral gyroidal skeleton of [M(ox)]. Whereas the solution of exhibited weak CPL with a luminescence dissymmetry factor of || ∼ 10, the CPL was significantly enhanced in solid-state - with || = 2 × 10 for , 4 × 10 for , and 1 × 10 for . The enhanced CPL in was attributable to an energy transfer between the homochiral guest and host in .