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Charge Transfer Complexes of Some Heterocyclic Aromatic Amines with π‐Organic Acceptors in Polar Solvents
Author(s) -
Abdalla N. A.,
ElHaty M. T.,
Adam F. A.,
Hassan F. W.
Publication year - 2013
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201200181
Subject(s) - chemistry , picric acid , acetonitrile , titration , conductance , dissociation constant , stoichiometry , dimethylformamide , electron acceptor , conductometry , solvent , inorganic chemistry , anthraquinone , organic chemistry , biochemistry , receptor , mathematics , combinatorics
A conductometric titration technique has been used to investigate the electron transfer activity of CT molecular complexes formed by arylazopyrimidine and naphthylazopyrimidine derivatives as donors and the organic π‐acceptors p ‐nitroaniline, p ‐chloroaniline, p ‐bromoaniline, anthraquinone, picric acid, α‐nitroso‐β‐naphthol, p ‐hydroxybenzaldehyde and maleic anhydride. The study was performed at different degree of temperature and in three different polar solvents namely N,N‐dimethylformamide (DMF), acetonitrile (ACN) and dimethylsulfoxide (DMSO). The stoichiometric ratios of these complexes were found to be 1:1. The dissociation constant (ασ M ) values of the formed complexes have been calculated, and the effects of solvents as well as types of electron donors on their conductance σ p ‐values have been examined.