Complexation of 1,4-bis (3-(2-pyridyl) pyrazol-1-ylmethyl) benzene (1,4-PPB) with Cu (II), Co (II), and Ni (II):

Spectrophotometric Studies in Mixed Solvent (EtOH-H2O)

  • Khaled Muftah Elsherif University of Benghazi, Libya
  • Ahmed Zubi Misurata University, Libya
  • Adel Najar University of Benghazi, Al Marj, Libya
  • Eiman Bazina Misurata University, Misurata, Libya
Keywords: Pyrazole Based Ligands, Spectrophotometry, Cu, Ni, Co

Abstract

The stability and composition of the complexes of 1,4-bis (3-(2-pyridyl) pyrazol-1-ylmethyl) benzene (1,4-PPB) with Cu (II), Co (II), Ni (II): have been investigated using spectrophotometric method in mixed (1:1) solvent of ethanol and water. Various experimental parameters, which include pH, ionic strength, solvent composition, and time, have been studied. The stoichiometry and formation constant of each complex have been evaluated using Job's method. Spectrophotometric results show the formation of 1:1 complexes with stability order of Co > Ni > Cu. Molar absorptivity values of the complexes have also been determined.

Author Biographies

Khaled Muftah Elsherif, University of Benghazi, Libya

Chemistry Department, Faculty of Science, University of Benghazi, Benghazi, Libya

Ahmed Zubi, Misurata University, Libya

Chemistry Department, Faculty of Science, Misurata University, Misurata, Libya

Adel Najar, University of Benghazi, Al Marj, Libya

Chemistry Department, Faculty of Arts and Science, University of Benghazi, Al Marj, Libya

 

Eiman Bazina, Misurata University, Misurata, Libya

Chemistry Department, Faculty of Science, Misurata University, Misurata, Libya

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Published
2018-08-29
Section
Research Articles