Paper Information

Journal:   JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS)   DECEMBER 2010 , Volume 7 , Number 4; Page(s) 875 To 882.
 
Paper: 

SOME NEW UNSYMMETRICAL DIIMINO TETRADENTATE SCHIFF BASE DERIVED FROM 3,4-DIAMINOBENZOPHENONE: SYNTHESIS, CHARACTERIZATION AND THE FORMATION CONSTANT OF NI(II) AND CU(II) COMPLEXES

 
 
Author(s):  ASADI M.*, SOTOUDEH KHAH M.
 
* CHEMISTRY DEPARTMENT, COLLEGE OF SCIENCES, SHIRAZ UNIVERSITY, SHIRAZ 71454, I.R. IRAN
 
Abstract: 

Some new unsymmetrical diimino tetradentate Schiff bases derived from 3, 4-diaminobenzophenone, (N-salicyliden-N'-5- OMe. salycyliden) -3, 4-diaminobenzophenone (H2sal-5-OMe. sal. dabp) (H2L1), (H2sal-5-Br. sal. dabp) (H2L2), (H2sal-5-Cl. sal. dabp) (H2L3) and (H2sal-5-NO2. sal. dabp) (H2L4) and their Ni (II) and Cu (II) complexes were synthesized and characterized by elemental analysis, IR, 1H NMR, UV-Vis spectra and mass spectra. The thermodynamic formation constants of the complexes were determined spectrophotometrically at constant ionic strength (0.1 M NaClO4) at 25oC in DMF and their free energies of formation were calculated at 25oC.

 
Keyword(s): FORMATION CONSTANT, FREE ENERGY, METAL COMPLEX, THERMODYNAMIC, UNSYMMETRICAL SCHIFF BASE
 
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