Expanding the coordination chemistry of buckminsterfullerene: synthesis and characterization of (N,N′- dimethylethylenediamine-[60]-fullerene)copper(II) bromide

The chelate (N,N′-dimethylethylenediamine-[60]-fullerene)copper(II) bromide was synthesized in 79% yield by the dropwise addition of a solution of N,N′-dimethylethylenediamine-[60]-fullerene in tetrahydrofuran (THF) to a solution of excess copper(II) bromide in THF. The resulting brown precipitate was characterized by electron spin resonance (ESR) spectroscopy and elemental analysis.