Preparation and Spectroscopic Studies of Charge-Transfer Complexes of Thiamine Hydrochloride with Different Electron Acceptor
- Authors: Saoudi O.1, Teleb S.M.1, Gaballa A.S.2
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Affiliations:
- Chemistry Department, Faculty of Science
- Faculty of Specific Education
- Issue: Vol 88, No 4 (2018)
- Pages: 797-803
- Section: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/222152
- DOI: https://doi.org/10.1134/S1070363218040266
- ID: 222152
Cite item
Abstract
Abstract—Electronic interactions associated with charge transfer complexes formation of iodine, chloranilic acid (H2CA) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) with vitamin B1 have been studied spectrophotometrically. The accumulated data indicated formation of CT-complexes of the general formula [(VB1)(acceptor)n], (n = 1 or 2). The 1 : 2 and 1 : 1 donor: acceptor molar ratios were calculated on the basis of elemental analysis and photometric titrations. The solid complexes were prepared and characterized by their conductivity, UV-Vis, IR, and 1H NMR spectra, and thermogravimetric analyses (TGA, DTG). The characteristic physical constants (KCT, εCT, μ, ΔG, Ip, f, ECT) of the formed CT-complexes were determined to be strongly dependent on nature of the electron acceptors.
Keywords
About the authors
O. Saoudi
Chemistry Department, Faculty of Science
Email: akmalsg@yahoo.com
Egypt, Zagazig, 44519
S. M. Teleb
Chemistry Department, Faculty of Science
Email: akmalsg@yahoo.com
Egypt, Zagazig, 44519
A. S. Gaballa
Faculty of Specific Education
Author for correspondence.
Email: akmalsg@yahoo.com
Egypt, Zagazig, 44519