Effect of High Pressure on the Stability of Metal Complex Ion by Polarographic Method

폴라로그래피에 의한 金屬錯이온의 安定度에 미치는 壓力의 影響

  • Heung Lark Lee (Department of Chemistry, College of Natural Sciences, Kyungpook National University) ;
  • Zun Ung Bae (Department of Chemistry, College of Natural Sciences, Kyungpook National University) ;
  • Yu Chul Park (Department of Chemistry, College of Natural Sciences, Kyungpook National University) ;
  • Jong Hoon Yun (Department of Chemistry, College of Natural Sciences, Kyungpook National University)
  • 이흥락 (慶北大學校 自然科學大學 化學科) ;
  • 배준웅 (慶北大學校 自然科學大學 化學科) ;
  • 박유철 (慶北大學校 自然科學大學 化學科) ;
  • 윤종훈 (慶北大學校 自然科學大學 化學科)
  • Published : 1988.02.20

Abstract

The effect of high pressure on the stability of copper(II), cadmium(II) and zinc (II) complex ions with ethylenediamine, propylenediamine, diethylenetriamine has been investigated polarographically. 0.10M KN$O_3$ solution was used as a supporting electrolyte. The concentration of chelating agents was varied from 0.01M to 1.00M. The dissociation constants of metal complex ions were increased with increasing the pressure from 1 atmosphere to 1,500 atmospheres. The increment of the dissociation constant per unit atmosphere varied from 1.1 ${\times} 10^{-3}$% for Cu(dien)$_2^{2+}$ to 5.0 ${\times} 10^{-3}$ % for Zn(en)$_2^{2+}$.

에틸렌디아민, 프로필렌디아민 및 디에틸렌트리아민의 구리(II), 카드뮴(II) 및 아연(II) 착이온의 安定度에 미치는 壓力의 影響을 폴라로그래피로 조사하였다. 支持電解質로서는 0.10M의 KN$O_3$ 용액을 쓰고, 킬레이트제의 농도는 0.01M에서 0.1M까지 변화시켰다. 압력이 1기압에서 1,500기압으로 증가함에 따라 금속착이온의 解離常數는 증가하였으며, 단위압력당 증가율은 $Cu(dien)_2^{2+}$의 1.1 ${\times} 10^{-3}$ %에서 Zn(en)$_2^{2+}$의 5.0${\times} 10^{-3}$ % 까지의 값으로 나타났다.

Keywords

References

  1. J. Am. Chem. Soc. v.67 G. A. Carlson;J. P. McReynolds;F. H. Verhoek
  2. J. Am. Chem. Soc. v.72 B. E. Douglas;H. A. Laitinen;J. C. Bailar
  3. J. Am. Chem. Soc. v.73 I. M. Kolthoff;D. L. Leussing;T. S. Lee
  4. Trans. Faraday Soc. v.47 C. B. Monk
  5. J. Chem. Soc. C. W. Davies;G. M. Waind
  6. Inorg. Chem. v.17 J. W. Bixler;A. M. Bond
  7. Anal. Lett. v.12 N. Radic
  8. J. Am. Chem. Soc. v.72 H. A. Laitinen;E. I. Onstott
  9. J. Am. Chem. Soc. v.72 B. E. Douglas;H. A. Laitinen;J. C. Bailar
  10. Paper No. 22;Symposium on Equilibrium and Rate Behavior of Complex Ions W. B. Schaap
  11. J. Am. Chem. Soc. v.72 N. C. Li;E. Doody
  12. J. Am. Chem. Soc. v.68 R. M. Keefer
  13. J. Am. Chem. Soc. v.73 L. Meites
  14. J. Kor. Chem. Soc. v.28 H. L. Lee;Z. U. Bae;J. H. Yun
  15. Research Rev. of Kyungpook Nat. Univ. v.37 H. L. Lee;Z. U. Bae;J. H. Yun
  16. J. Kor. Chem. Soc. v.29 H. L. Lee;Z. U. Bae;J. H. Yun
  17. J. Kor. Chem. Soc. v.31 H. L. Lee;Z. U. Bae;J. H. Yun
  18. Bull. Chem. Soc. Jpn. v.46 K. Tamura;Y. Oga;T. Imato
  19. Annual Rev. Phy. Chem. v.23 C. A. Echert
  20. High Pressure Physics and Chemistry R. S. Bradley
  21. Chemistry Reaction at High Pressure K. E. Weale
  22. Trans. Faraday Soc. v.71 S. D. Hamann;M. Linton