Spectroscopic Observation of Self-Assembly of a Macrocyclic Tetranuclear Complex Composed of Pt2+ and 4,4′-Bipyridine

Abstract
Macrocyclic tetranuclear Pt(II) complex [(en)Pt(4,4′-bpy)]4(NO3)8 (en = ethylenediamine; bpy = bipyridine) assembled by treating (en)Pt(NO3)2 with 4,4′-bpy in water. The assembling was monitored by 1H NMR.