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Theoretical and Experimental Chemistry

, Volume 21, Issue 5, pp 610–612 | Cite as

Kinetics of solid-phase ligand-substitution reactions in diammine(1,4,8,11-Tetraazaundecane)chromium(III) bromide isomers

  • E. A. Pisarev
  • Yu. N. Shevchenko
  • V. A. Logvinenko
  • G. V. Gavrilova
Article
  • 20 Downloads

Abstract

The kinetics of solid-phase reactions of substitution of coordinated ammonia by outer-sphere bromide ions in [CrL(NH3)2]2Br3·nH2O, where L is 1,4,8,11- tetraazaundecane, n ≠ 2–2.5, was studied by a nonisothermal method by differential thermogravimetry, mass spectrometry, and investigations in a flow-type reactor. The kinetic stability of the isomeric salts increases in the series trans<cis-β<cis-d. Tetragonal distortion of the chromophore is of decisive significance for the trans isomer, while the difference in the stability of the cis isomers is related to the structure of their crystal lattices.

Keywords

Ammonia Mass Spectrometry Chromium Bromide Thermogravimetry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Literature cited

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    Yu. N. Shevchenko, E. A. Pisarev, and K. B. Yatsimirskii, “Synthesis and properties of isomeric hexaammine mixed-ligand complex salts of chromium(III) bromide with 1,4,8,11-tetraazaundecane and ammonia,” Zh. Obshch. Khim.,55. No. 12, 2788–2793 (1985).Google Scholar
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Copyright information

© Plenum Publishing Corporation 1986

Authors and Affiliations

  • E. A. Pisarev
    • 1
    • 2
  • Yu. N. Shevchenko
    • 1
    • 2
  • V. A. Logvinenko
    • 1
    • 2
  • G. V. Gavrilova
    • 1
    • 2
  1. 1.L. V. Pisarzhevskii Institute of Physical ChemistryAcademy of Sciences of the Ukrainian SSRKiev
  2. 2.Institute of Inorganic Chemistry, Siberian BranchAcademy of Sciences of the USSRNovosibirsk

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