CHED 178 |
| DDT, 1,1-bis(4-chlorophenyl)-2,2,2-trichloroethane, used worldwide in the last several decades despite its known hazardous effects on the environment has been accumulated in the soil due to its slow degradation. In this paper, two cobalt tetrapyridinoporphyrazine complexes were examined as to their catalytic properties for the dehalogenation reaction of DDT in pyridine solution. Each investigated cobalt porphyrazine derivative was firstly reduced electrochemically to [(Por)Co(I)]- anion. This species is a supernucleophile and reacts with DDT molecules. The catalytic dehalogenation reaction of coordinated DDT molecules occurs when [(Por)Co(I)]- is stepwise reduced to [(Por)Co(I)]2-. and [(Por)Co(I)]3-. Products of DDT dehalogenation reaction were also examined. |
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Undergraduate Research Poster Session
2:30 PM-4:30 PM, Monday, August 20, 2007 BCEC -- Exhibit Hall - B2, Poster
Division of Chemical Education |