Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1234699 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2008 | 4 Pages |
Abstract
The interaction between the electron donor o-phenylenediamine (o-phendn) and the π-acceptor tetracyanoethylene (TCNE) has been investigated spectrophotometrically in dichloromethane at 25 °C. The results indicate that the reaction proceeds via two major steps. The formation of the 1:2 charge-transfer complex [(o-phendn)2, (TCNE)4] in which two o-phenylenediamine molecules undergoes slow N-substitution by one TCNE forming the final reaction product 2,2-di-o-aminoaniline-1,1-dicyanoethylene and 2HCN molecules. The reaction was studied using electronic, infrared, photometric titration and cyclic voltametric measurements. A general mechanism for the reactions is proposed.
Related Topics
Physical Sciences and Engineering
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Analytical Chemistry
Authors
Amina S. Aljaber, El-Metwally Nour,