On the Aquation of Dichloro Bis-(Ethylenediamine)-Chromium (III) Cation

Dichloro Bis-(Ethylenediamine)-Chromium (III) 양이온의 수화반응

  • Jung-Ui Hwang (Department of Chemistry, College of Natural Sciences, Kyungpook National University) ;
  • Jong-Jae Chung (Department of Chemistry, College of Natural Sciences, Kyungpook National University) ;
  • Soung-Oh Bek (Department of Chemistry, College of Natural Sciences, Kyungpook National University)
  • 황정의 (경북대학교 자연과학대학 화학과) ;
  • 정종재 (경북대학교 자연과학대학 화학과) ;
  • 백성오 (경북대학교 자연과학대학 화학과)
  • Published : 1984.04.20

Abstract

Aquation reaction kinetics of $[Cr(en)_2Cl_2]^+$complex was carried by the electric conductivity method. Its temperature range was $15^{\circ}C$ to $30^{\circ}C$ and pressure was varied up to 2,000 bars. The reaction rate was increased with increasing temperature, but was reversed to increasing pressure. The activation volume(${\Delta}V^{\neq}$) was increased with increasing temperature and decreased with increasing pressure. At $25^{\circ}C$ and 1 bar it was fairly small positive value, $1.82cm^2/mole$. Activation entropy change(${\Delta}S^{\neq}$) $was calculated as small negative value,-9.019 eu, at $25^{\circ}C$ and 1bar. Referring to the thermodynamic parameters, it was estimated that aquation reaction was proceeded by the interchange-dissociation(Id) mechanism.

Keywords

References

  1. Inorg. Chem. v.6 A. N. Sargeson;Q. H. Searle
  2. J. Amer. Chem. Soc. v.83 D. A. MacDonald;C. B. Garner
  3. Inorganic Synthesis v.2 C. L. Rollinson;J. C. Baoilar;W. C. Fernelius(ed.)
  4. J. Inorg. Nuclear Chem. v.18 D. T. Mac Donald;C. S. Garner
  5. Phil. Mag. v.3 E. A. Gujgenheim
  6. Kinetic and Mechanis A. A. Frost;R. G. Pearson
  7. Bull. Chem. Soc. Japan v.46 K. Tamura;Y. Oga;T. Imoto
  8. Inorg. Chem. v.18 R. van Eldik;D. A. Palmer;H. Kelm
  9. Inorg. Chem. v.16 R. G. Linck
  10. Chem. Rev. v.78 T. Asano;W. J. le Noble
  11. J. Amer. Chem. Soc. v.81 C. Walling;G. Metzger
  12. J. Amer. Chem. Soc. v.92 R. C. Neuman Jr.;R. J. Bussey
  13. Inorg. Chem. v.18 D. R. Stranks;N. Vanderhoek
  14. Inorg. Chem. v.18 R. Van Eldik;G. M. Harris
  15. J. Amer. Chem. Soc. v.80 H. R. Hunt;H. Taube
  16. J. Amer. Chem. Soc. v.94 T. W. Swaddle;D. R. Stranks
  17. Inorg. Chem. v.13 S. B. Tong;T. W. Swaddle
  18. Inorg. Chem. Acta. v.34 D. A. Palmer;R. van. Eldik;T. P. Dasgupta;H. Kelm
  19. Inorg. Chem. v.10 Stephen C. Pyke;R. G. Linck
  20. Inorganic Chemistry K. E. Pureell;J. C. Kotz
  21. Coord. Chem. Rev. v.14 T. W. Swaddle
  22. Inorg. Chem. v.3 L. P. Quim;C. S. Garner
  23. J. Amer. Chem. Soc. v.89 H. R. Hunt;H. Taube