Structure and properties of a Ni(II) macrocyclic complex containing 4-methylenepyridine as a pendant arm and photo-induced electron-transfer of its self-assembled adduct with Ru(II)–bipyridine complex

Ni(II) macrocyclic complex containing pyridine as a pendant arm ([Ni(A)]2+) was prepared and its X-ray crystal structure was determined. Pyridine ring of the complex is located above the coordination plane and water molecule links Ni(II) ion and nitrogen atom of pyridine ring in second complex, resulting to one-dimensional chain. The considerable photo-induced electron-transfer reaction was detected in the Ru(II)–Ni(II)2 self-assembled adduct of {Ru(bpy)2[Ni(A)]2}(ClO4)6 (B).