Spectroscopic investigation of the donor-acceptor interaction between o-phenylenediamine and tetracyanoethylene in dichloromethane

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Author Aljaber, Amina S. en_US
Author Nour, El-Metwally en_US
Available date 2009-12-28T08:56:42Z en_US
Publication Date 2007-08-01 en_US
Citation Aljaber, A. S., & Nour, E.-M. (2008). Spectroscopic investigation of the donor–acceptor interaction between o-phenylenediamine and tetracyanoethylene in dichloromethane. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 70(5), 997–1000 en_US
URI http://dx.doi.org/10.1016/j.saa.2007.08.026 en_US
URI http://hdl.handle.net/10576/10525 en_US
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. en_US
Language en en_US
Publisher Elsevier B. V. en_US
Subject Charge-transfer en_US
Subject o-Phenylenediamine en_US
Subject Tetracyanoethylene en_US
Subject Spectra en_US
Title Spectroscopic investigation of the donor-acceptor interaction between o-phenylenediamine and tetracyanoethylene in dichloromethane en_US
Type Article en_US


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