SPECTROSCOPIC STUDY OF THE CHARGE TRANSFER COMPLEXES FOR SOME DYES | ||
| Journal of University of Anbar for Pure Science | ||
| Article 9, Volume 4, Issue 3, December 2010, Pages 33-35 PDF (430.92 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.37652/juaps.2010.15658 | ||
| Authors | ||
| ABED AL-HAKIM DAHAM1; SABRI M. HUSSEN2 | ||
| 1Anbar University - College of Agriculture | ||
| 2Anbar 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 . | ||
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