Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Electrochemical Studies of Oxovanadium(IV) Complex of 2-Amino-1-cyclopentene-1-dithiocarboxylate

  • Young-Jin Kim (Department of Chemistry, Pusan National University) ;
  • Duck-Soo Park (Department of Chemistry, Pusan National University) ;
  • Yoon-Bo Shim (Department of Chemistry, Pusan National University) ;
  • Sung-Nak Choi (Department of Chemistry, Pusan National University)
  • Published : 1990.04.20
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Abstract

The redox properties of 2-amino-1-cyclopentene-1-dithiocarboxylate anion (acdc) and its oxovanadium complex, $VO(acdc)_2$ have been investigated in dimethylformamide (DMF) with polarography and cyclic voltammetry. Bis(2-amino-1-cyclopentene-1-dithiocarboxylate) oxovanadium(IV) exhibits two polarographic oxidation waves and two reduction waves in the potential range from +0.50V to - 2.4V vs. the Ag/AgCl (DMF) reference electrode. The second oxidation wave appeared at - 0.08V is found to be reversible and is attributed to the formation of $VO(acdc)_2\;^+$. The first reduction process (at - 0.60V) is also reversible and this reduction process is caused by the electrode process of formation of $VO(acdc)_2$-species. The half wave potential for the reduction, V(IV)$\to$V(III) is more positive for oxovanadium complexes containing sulfur donor atoms than other VO(IV) complexes having oxygen or nitrogen donor atoms.

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References

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