High-Performance Directional Metallopolyamides. II. Optical Spectroscopic Studies of Metal Chelation |
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| Authors: | Odessa N Petzold and Issifu I Harruna |
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| Affiliation: | (1) Department of Chemistry, Clark Atlanta University, Atlanta, Georgia, 30314;(2) High Performance Polymers and Composites Center, Clark Atlanta University, Atlanta, Georgia, 30314 |
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| 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] (
max=530 nm), RuII(poly)2L2] (
max=584 nm), and RuII(poly)3]2+ (
max=476 nm), while iron(II) ions formed only one complex (
max=569 nm). The diverse functional features of the polymer repeat unit directly influences the chelation of metal ions. |
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| Keywords: | metallopolymers UV– is spectroscopy fluorescence transition metals 2 2 -bipyridyl polyamides" target="_blank">gif" alt="prime" align="BASELINE" BORDER="0">-bipyridyl polyamides |
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