Mo-Thiocyanate (V) 錯物의 電極還元 反應에 關한 硏究

A Polarographic Study of Mo-thiocyanate (V) Complex

  • 오상오 (慶北大學校 文理科大學 化學科) ;
  • 박유철 (慶北大學校 文理科大學 化學科)
  • Sang-O Oh (Department of Cnemistry, College of Liberal Arts and Sciences Kyungpook National University) ;
  • Yu-Chul Park (Department of Cnemistry, College of Liberal Arts and Sciences Kyungpook National University)
  • 발행 : 19700600

초록

The reduction of Mo-thiocyanate (V) complex on dropping mercury electrode has been studied at ionic strength 0.6 with pH less than 2.3. D-C polarogram obtained from acidic solutions are reversible, diffusion controlled current. The electrode reaction of Mo-thiocyanate(V) may be represented as follows. $MoO(SCN)_3\;+\;2H^+\;+\;2e\;{\to}\;Mo(SCN)_2{^+}\;+\;H_2O\;+\;SCN^-$From this reaction, the half wave potential assumed to be $E_{1/2}\;=\;E_0'\;-\;0.059\;pH\;-\;0.03\;log{\;frac{[Mo(SCN)_2{^+}][SCN^-]}{[MoO(SCN)_3]}}$Considering the dissociation of this complex, however, it was estimated that the electrode reaction may be written by. $MoO^{+3}\;+\;3SCN^-\;+\;2H^+\;+\;2e\;{\to}\;Mo(SCN)_2{^+}\;+\;SCN^-\;+\;H_2O$.

키워드

참고문헌

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