Abstract
The chelating interaction between metal ions and 4,4′-disubstituted-2,2′-bipyridyl-containing high-performance polymeric ligands prepared from 2,2′-bipyridyl-4,4′-dicarboxylic acid and a series of primary aromatic diamines was investigated by optical spectroscopy. Optical spectroscopic studies of the chelation of ruthenium ions by the 2,2′-bipyridyl-containing polyamides revealed the formation of distinct ruthenium(II) complexes [RuII(poly)L4] (λ max=530 nm), [RuII(poly)2L2] (λ max=584 nm), and [RuII(poly)3]2+ (λ max=476 nm), while iron(II) ions formed only one complex (λ max=569 nm). The diverse functional features of the polymer repeat unit directly influences the chelation of metal ions.
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Petzold, O.N., Harruna, I.I. High-Performance Directional Metallopolyamides. II. Optical Spectroscopic Studies of Metal Chelation. Journal of Inorganic and Organometallic Polymers 10, 249–264 (2000). https://doi.org/10.1023/A:1016646907899
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DOI: https://doi.org/10.1023/A:1016646907899