Abstract
Three heterotopic ligands L1, L2, and L3 based on 1,10-phenanthroline and 2,2′-bipyridine moieties have been synthesized and characterized. The Ru(II) complexes [{Ru(bpy)2}3(µ3-L1)](PF6)6, [{Ru(bpy)2}3(µ3-L2)](PF6)6, and [{Ru(bpy)2}2(µ2-L3)](PF6)4 (bpy = 2,2′-bipyridine) have been prepared by refluxing Ru(bpy)2Cl2·2H2O with each ligand in ethanol. All three complexes display MLCT absorptions at around 455 nm and emissions at around 618 nm. Electrochemical studies of the complexes reveal one Ru(II)-centered quasi-reversible oxidation at around 1.32 V and three ligand-centered reductions in each case.
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We are grateful to the National Natural Science Foundation of China (21261019) and Shanghai key laboratory of rare earth functional materials for financial support.
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Cheng, F., Yu, S., Ren, M. et al. Di- and trinuclear Ru(II) complexes of 1,10-phenanthroline and 2,2′-bipyridine derivatives; synthesis, photophysical and electrochemical properties. Transition Met Chem 41, 305–314 (2016). https://doi.org/10.1007/s11243-016-0022-y
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DOI: https://doi.org/10.1007/s11243-016-0022-y