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The spectroscopic properties for a recently synthesized hetero-metallo-binuclear complex Ru(bpy)_2 (bpy-cyclam-Ni)~(4+)(3)and its related complexes 1 and 2were investigated by UV-vis and emission spectral methods.A drastic quenching offluorescence from the Ru(bpy)_3~(2+) subunit by the covalently attached quencher sub-unit Ni(cyclam)~(2+) was observed for complex 3,and the mechanism was discussed.
The spectroscopic properties for a recently synthesized hetero-metallo-binuclear complex Ru (bpy) _2 (bpy-cyclam-Ni) ~ (4 +) (3) and its related complexes 1 and 2were investigated by UV-vis and emission spectral methods. A drastic quenching offluorescence from the Ru (bpy) _3 ~ (2+) subunit by the covalently attached quencher sub-unit Ni (cyclam) ~ (2+) was observed for complex 3, and the mechanism was discussed.