Document Type : Research Paper
Authors
1 Anbar University - College of Agriculture
2 Anbar University - College of Medicine,
Abstract
This research was included the spectrophotometric study of charge transfer complexes of Lawson
dye ( as acceptor ) with nine compounds ( as donors ) at room temperature 255 c by using absolute ethanol as
solvent . Formation constants Kc and molar absorptivity (ε) were calculated by using Benesi – Hildebrand equation
and linear relation ship was obtained which indicated, clearly a 1:1 stoichiometric ratio of donor to acceptor .
Isolation of solid complexes were successfully achieved by mixing equimolar quantities of donors with acceptor
in ethanol as solvent . These complexes were identified by using some spectroscopic methods .From the results , it
concluded clearly that electron density of donors and geometry were the fundamental factors , that effect to the
stability of complex formed , that electron density of donors and geometry of complex played important roles in the
value of Kc and stability of these complexes .
Main Subjects
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