IR, 1H-NMR, UV-Vis and thermal studies on the Rhodamine 6G charge-transfer complexes

Charge-transfer (CT) complexes formed between Rhodamine 6G (Rh6G) as donor with iodine, CLA and PA as acceptors have been studied spectrophotometrically. The synthesis and characterization of Rhodamine 6G CT-complexes of iodine, [(Rh6G)2]I+.I3ˉ, chloranilic acid (CLA), [(Rh6G)(CLA)] and picric acid...

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Veröffentlicht in:Bulletin of the Chemical Society of Ethiopia 2011-04, Vol.25 (1), p.137-146
Hauptverfasser: S. Refat, Moamen, M.A. Killa, Hamada, El-Sayed, M.Y.
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Sprache:eng
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Zusammenfassung:Charge-transfer (CT) complexes formed between Rhodamine 6G (Rh6G) as donor with iodine, CLA and PA as acceptors have been studied spectrophotometrically. The synthesis and characterization of Rhodamine 6G CT-complexes of iodine, [(Rh6G)2]I+.I3ˉ, chloranilic acid (CLA), [(Rh6G)(CLA)] and picric acid (PA) [(Rh6G)(PA)] were described. These complexes are readily prepared from the reaction of Rh6G with I2, CLA and PA with CHCl3 solvent. Mid and far IR, 1H-NMR, UV-Vis techniques, elemental analyses (CHN) and thermal studies, characterize the three new Rhodamine 6G charge-transfer complexes. Modified Benesi-Hildebrand method was applied to the determination of association constant and molar extinction coefficient.
ISSN:1011-3924
1011-3924
1726-801X
DOI:10.4314/bcse.v25i1.63377