Spectrophotometric and potentiometric investigations of copper (II)-Ethanolamine complexes

Part III. diethanolamine (Gaussian analysis of electronic spectra in mono and diethanolamine systems)
  • S. Mahapatra
  • R. S. Subrahmanya


Spectrophotometric and potentiometric investigations have been carried out on copper-diethanolamine system. Job plots at 900, 900 and 580 mμ have indicated the formation of CuD++, CuD2 ++ and CuD3 ++. Then- pA curves obtained indicate the formation of CuD++, CuD2 ++, CuD3 ++, CuDOH+, CuD2OH+ and CuD3OH+. Then- pA curves have been analyzed to obtain the stability constants of these complexes. Absorption curves of pure complexes have been computed by a graphical method. Gaussian analysis of the absorption curves of pure and hydroxy complexes show the presence of a second band, indicating that the structure is that of a distorted octahedron.


Stability Constant Diethanolamine Distorted Octahedron Pure Complex Ionic Strength Dependence 
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Copyright information

© Indian Academy of Sciences 1971

Authors and Affiliations

  • S. Mahapatra
    • 1
    • 2
  • R. S. Subrahmanya
    • 1
  1. 1.Department of Inorganic and Physical ChemistryIndian Institute of ScienceBangalore-12
  2. 2.Regional Research LaboratoryBhubaneswar-4, Orissa

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