Chiral monolayer of self-assembled Δ-[Os(bpy)2L(Cl)]+ [bpy = 2,2′-bipyridyl, L = 1,2-bis(4-pyridyl)ethane] on a platinum electrode

A chiral osmium complex, Δ-(2,2′-bipyridyl) [1,2-bis(4-pyridyl)ethane] chloroosmium Δ-[Os(bpy) 2 L(Cl)] + , is successfully self-assembled at a monolayer molecular level on a clean Pt electrode in non-aqueous solutions; the self-assembled Δ-[Os(bpy) 2 LCl] + ions show a phenomenally repulsive interaction with each other on Pt in chiral-field formation and also in the Os II –Os III redox reaction, while racemic complexes interact less repulsively with each other.